<SEC-DOCUMENT>0001493152-21-014185.txt : 20210611
<SEC-HEADER>0001493152-21-014185.hdr.sgml : 20210611
<ACCEPTANCE-DATETIME>20210611172256
ACCESSION NUMBER:		0001493152-21-014185
CONFORMED SUBMISSION TYPE:	S-3
PUBLIC DOCUMENT COUNT:		4
FILED AS OF DATE:		20210611
DATE AS OF CHANGE:		20210611

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			SIGMA LABS, INC.
		CENTRAL INDEX KEY:			0000788611
		STANDARD INDUSTRIAL CLASSIFICATION:	MISCELLANEOUS MANUFACTURING INDUSTRIES [3990]
		IRS NUMBER:				820404220
		STATE OF INCORPORATION:			NV
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		S-3
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-257054
		FILM NUMBER:		211012366

	BUSINESS ADDRESS:	
		STREET 1:		3900 PASEO DEL SOL
		CITY:			SANTE FE
		STATE:			NM
		ZIP:			87507
		BUSINESS PHONE:		(505) 438-2576

	MAIL ADDRESS:	
		STREET 1:		3900 PASEO DEL SOL
		CITY:			SANTE FE
		STATE:			NM
		ZIP:			87507

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	FRAMEWAVES INC
		DATE OF NAME CHANGE:	20010130

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	MESSIDOR LTD
		DATE OF NAME CHANGE:	20010122
</SEC-HEADER>
<DOCUMENT>
<TYPE>S-3
<SEQUENCE>1
<FILENAME>forms-3.htm
<TEXT>
<HTML>
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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>As
filed with the Securities and Exchange Commission on June 11, 2021</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Registration
No. 333- </B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"></P>

<!-- Field: Rule-Page --><DIV STYLE="margin-top: 0; margin-bottom: 0; width: 100%"><DIV STYLE="font-size: 1pt; border-top: Black 4pt solid; border-bottom: Black 1.5pt solid">&nbsp;</DIV></DIV><!-- Field: /Rule-Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 18pt"><B>UNITED
STATES</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 18pt"><B>SECURITIES
AND EXCHANGE COMMISSION</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 12pt"><B>Washington,
D.C. 20549</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"></P>

<!-- Field: Rule-Page --><DIV STYLE="margin: 0 auto; width: 25%"><DIV STYLE="font-size: 1pt; border-top: Black 1.5pt solid">&nbsp;</DIV></DIV><!-- Field: /Rule-Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 18pt"><B>FORM
S-3</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>REGISTRATION
STATEMENT</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>UNDER</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>THE
SECURITIES ACT OF 1933</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"></P>

<!-- Field: Rule-Page --><DIV STYLE="margin: 0 auto; width: 25%"><DIV STYLE="font-size: 1pt; border-top: Black 1.5pt solid">&nbsp;</DIV></DIV><!-- Field: /Rule-Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 18pt"><B>SIGMA
LABS, INC.</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>(Exact
name of registrant as specified in its charter)</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0"></P>

<!-- Field: Rule-Page --><DIV STYLE="margin: 0 auto; width: 25%"><DIV STYLE="font-size: 1pt; border-top: Black 1.5pt solid">&nbsp;</DIV></DIV><!-- Field: /Rule-Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 50%; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Nevada</B></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 50%; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>27-1865814</B></FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>(State
                                            or other jurisdiction of</B></FONT></P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>incorporation
    or organization)</B></FONT></P></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>(I.R.S.
                                            Employer</B></FONT></P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Identification
    Number)</B></FONT></P></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Sigma
Labs, Inc.<BR>
3900 Paseo del Sol</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Santa
Fe, New Mexico 87507</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>(505)
438-2576</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>(Address,
including zip code, and telephone number, including area code, of registrant&rsquo;s principal executive offices)</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"></P>

<!-- Field: Rule-Page --><DIV STYLE="margin: 0 auto; width: 25%"><DIV STYLE="font-size: 1pt; border-top: Black 1.5pt solid">&nbsp;</DIV></DIV><!-- Field: /Rule-Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Mark
K. Ruport</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Chief
Executive Officer</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Sigma
Labs, Inc.</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>3900
Paseo del Sol</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Santa
Fe, New Mexico 87507</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>(505)
438-2576</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>(Name,
address, including zip code, and telephone number, including area code, of agent for service)</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"></P>

<!-- Field: Rule-Page --><DIV STYLE="margin: 0 auto; width: 25%"><DIV STYLE="font-size: 1pt; border-top: Black 1.5pt solid">&nbsp;</DIV></DIV><!-- Field: /Rule-Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Copy
to:</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Darren
T. Freedman</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>David
L. Ficksman</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>TroyGould
PC</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>1801
Century Park East, 16th Floor</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Los
Angeles, California 90067</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>(310)
553-4441 </B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"></P>

<!-- Field: Rule-Page --><DIV STYLE="margin: 0 auto; width: 25%"><DIV STYLE="font-size: 1pt; border-top: Black 1.5pt solid">&nbsp;</DIV></DIV><!-- Field: /Rule-Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Approximate
date of commencement of proposed sale to the public: </B>From time to time after the effective date of this registration statement.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">If
the only securities being registered on this Form are being offered pursuant to dividend or interest reinvestment plans, please check
the following box. [&nbsp;&nbsp;]</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">If
any of the securities being registered on this Form are to be offered on a delayed or continuous basis pursuant to Rule 415 under the
Securities Act of 1933, other than securities offered only in connection with dividend or interest reinvestment plans, please check the
following box. [X]</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">If
this Form is filed to register additional securities for an offering pursuant to Rule 462(b) under the Securities Act, check the following
box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering.
[&nbsp;&nbsp;]</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">If
this Form is a post-effective amendment filed pursuant to Rule 462(c) under the Securities Act, check the following box and list the
Securities Act registration statement number of the earlier effective registration statement for the same offering. [&nbsp;&nbsp;]</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">If
this Form is a registration statement pursuant to General Instruction I.D. or a post-effective amendment thereto that shall become effective
upon filing with the Commission pursuant to Rule 462(e) under the Securities Act, check the following box. [&nbsp;&nbsp;]</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">If
this Form is a post-effective amendment to a registration statement filed pursuant to General Instruction I.D. filed to register additional
securities or additional classes of securities pursuant to Rule 413(b) under the Securities Act, check the following box. [&nbsp;&nbsp;]</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Indicate
by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting
company, or an emerging growth company. See the definitions of &ldquo;large accelerated filer,&rdquo; &ldquo;accelerated filer,&rdquo;
&ldquo;smaller reporting company&rdquo; and &ldquo;emerging growth company&rdquo; in Rule 12b-2 of the Exchange Act.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 25%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Large
    accelerated filer</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 30%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">[&nbsp;&nbsp;]</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 40%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Accelerated
    filer</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 5%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">[&nbsp;&nbsp;]</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Non-accelerated
    filer </FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">[X]</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Smaller
    reporting company </FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">[X]</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Emerging
    growth company </FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">[&nbsp;&nbsp;]</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">If
an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying
with any new or revised financial accounting standards provided pursuant to Section 7(a)(2)(B) of the Securities Act. [&nbsp;&nbsp;]</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>CALCULATION
OF REGISTRATION FEE</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; width: 100%; font: 10pt Times New Roman, Times, Serif">
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="text-align: center; border-bottom: Black 1.5pt solid"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Title of each class of</B></FONT></P> <P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>securities to be registered</B></FONT></P></TD><TD STYLE="font-weight: bold; padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Amount to be<BR> Registered</TD>
    <TD COLSPAN="2" STYLE="padding-bottom: 1.5pt; font-weight: bold; text-align: center"><SUP>&nbsp;</SUP></TD><TD STYLE="font-weight: bold; padding-bottom: 1.5pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="font-weight: bold; text-align: center; border-bottom: Black 1.5pt solid">Proposed<BR> maximum<BR> offering price<BR> per share</TD><TD STYLE="padding-bottom: 1.5pt; font-weight: bold">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Proposed</B></FONT></P> <P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>maximum<BR> aggregate<BR> offering price</B></FONT></P></TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="text-align: center; border-bottom: Black 1.5pt solid"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Amount of</B></FONT></P> <P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>registration fee</B></FONT></P></TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="width: 31%">Common Stock, $0.001 par value</TD><TD STYLE="width: 1%">&nbsp;</TD>
    <TD STYLE="width: 15%; text-align: right">&nbsp;</TD>
    <TD STYLE="width: 1%; text-align: right"><SUP>(1)</SUP></TD><TD STYLE="width: 1%; text-align: left"></TD><TD STYLE="width: 2%">&nbsp;</TD>
    <TD STYLE="width: 1%; text-align: left">&nbsp;</TD><TD STYLE="width: 13%; text-align: right">&nbsp;</TD><TD STYLE="width: 1%; text-align: left">&nbsp;</TD><TD STYLE="width: 2%">&nbsp;</TD>
    <TD STYLE="width: 1%; text-align: left">&nbsp;</TD><TD STYLE="width: 13%; text-align: right">&nbsp;</TD><TD STYLE="width: 1%; text-align: left">&nbsp;</TD><TD STYLE="width: 2%">&nbsp;</TD>
    <TD STYLE="width: 1%; text-align: left">&nbsp;</TD><TD STYLE="width: 13%; text-align: right">&mdash;</TD><TD STYLE="width: 1%; text-align: left">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: White">
    <TD>Preferred Stock, $0.001 par value</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: right">&nbsp;</TD>
    <TD STYLE="text-align: right"><SUP>(1)</SUP></TD><TD STYLE="text-align: left"><SUP>&nbsp;</SUP></TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&mdash;</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left">Debt Securities</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: right">&nbsp;</TD>
    <TD STYLE="text-align: right"><SUP>(1)</SUP></TD><TD STYLE="text-align: left"><SUP>&nbsp;</SUP></TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&mdash;</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: White">
    <TD>Warrants</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: right">&nbsp;</TD>
    <TD STYLE="text-align: right"><SUP>(1)</SUP></TD><TD STYLE="text-align: left"><SUP>&nbsp;</SUP></TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&mdash;</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD>Units</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: right">&nbsp;</TD>
    <TD STYLE="text-align: right"><SUP>(1)</SUP></TD><TD STYLE="text-align: left"><SUP>&nbsp;</SUP></TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&mdash;</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: White">
    <TD>Sub-Total</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: right">&nbsp;</TD>
    <TD STYLE="text-align: right"><SUP>&nbsp;</SUP></TD><TD STYLE="text-align: left"><SUP>&nbsp;</SUP></TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">$</TD><TD STYLE="text-align: right">50,000,000</TD><TD STYLE="text-align: left"><SUP>(2)</SUP></TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">$</TD><TD STYLE="text-align: right">5,455</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD>Common Stock, $0.001 par value</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: right">46,887 Shares</TD>
    <TD STYLE="text-align: right"><SUP>(3)</SUP></TD><TD STYLE="text-align: left"><SUP>&nbsp;</SUP></TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">$</TD><TD STYLE="text-align: right">10.80</TD><TD STYLE="text-align: left"><SUP>(4)</SUP></TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">$</TD><TD STYLE="text-align: right">506,380</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">$</TD><TD STYLE="text-align: right">55.25</TD><TD STYLE="text-align: left"><SUP>(5)</SUP></TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: White">
    <TD>Common Stock, $0.001 par value</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: right">42,024 Shares</TD>
    <TD STYLE="text-align: right"><SUP>(3)</SUP></TD><TD STYLE="text-align: left"><SUP>&nbsp;</SUP></TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">$</TD><TD STYLE="text-align: right">16.10</TD><TD STYLE="text-align: left"><SUP>(4)</SUP></TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">$</TD><TD STYLE="text-align: right">676,586</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">$</TD><TD STYLE="text-align: right">73.82</TD><TD STYLE="text-align: left"><SUP>(5)</SUP></TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD>Total</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: right">&nbsp;</TD>
    <TD STYLE="text-align: right"><SUP>&nbsp;</SUP></TD><TD STYLE="text-align: left"><SUP>&nbsp;</SUP></TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right">&nbsp;</TD><TD STYLE="text-align: left">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">$</TD><TD STYLE="text-align: right">51,182,966</TD><TD STYLE="text-align: left"><SUP>(2)</SUP></TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">$</TD><TD STYLE="text-align: right">5,584.07</TD><TD STYLE="text-align: left"><SUP>(6)</SUP></TD></TR>
  </TABLE>


<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 23.95pt; text-indent: -23.95pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(1)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
    securities referred to by this note (1) may be sold separately, together with other securities referred to by this note (1), or as
    units consisting of a combination of such securities. Pursuant to Rule 457(o) under the Securities Act of 1933 and General Instruction
    II.D to Form S-3 under the Securities Act of 1933, the number of common shares, preferred stock, debt securities, warrants, and units
    is not specified. There is being registered hereunder an indeterminate amount of common stock, preferred stock, debt securities,
    warrants and units of the registrant as may from time to time be issued at indeterminate prices. The maximum offering price per class
    of securities will be determined from time to time by the registrant in connection with the issuance of the securities. However,
    in no event will the maximum aggregate offering price of the securities referred to by this note (1) exceed $50,000,000 or such lesser
    aggregate amount permitted under General Instruction I.B.6 to Form S-3 under the Securities Act of 1933. Pursuant to Rule 416 under
    the Securities Act of 1933, this registration statement also registers such indeterminate amounts of securities as may be issued
    upon conversion of, or in exchange for, the securities registered hereunder and such indeterminate number of shares of common stock
    and preferred stock as may be issued from time to time upon conversion or exchange as a result of stock splits, stock dividends or
    similar transactions.</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(2)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Estimated
    solely for the purpose of calculating the registration fee pursuant to Rule 457(o) under the Securities Act of 1933.</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(3)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Represents
    shares issuable upon exercise of outstanding warrants. The warrants were sold and issued under the registration statement on Form
    S-3 (Reg. No. 333-225377) declared effective on June 14, 2018, and the shares issuable upon exercise of the warrants were originally
    offered for sale under that prior registration statement. In accordance with Rule 416, there is also being registered hereunder such
    indeterminate number of additional shares of common stock as may become issuable upon exercise of the warrants to prevent dilution
    resulting from stock splits, stock dividends or similar transactions.</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(4)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
    price is estimated in accordance with Rule 457(g) under the Securities Act of 1933 solely for the purpose of calculating the registration
    fee based upon the exercise price of the warrants.</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(5)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
    registration fee with respect to these shares was previously paid as described in note (3).</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(6)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Pursuant
    to Rule 415(a)(6) under the Securities Act of 1933, $1,450,946 of the securities registered by this registration statement
    consist of unsold securities previously registered under the registration statement on Form S-3 (Reg. No. 333-225377) declared
    effective on June 14, 2018. Pursuant to Rule 457(p) under the Securities Act of 1933, the registration fee of $545.74
    paid with respect to such unsold securities in connection with such previous registration statement is offset against the
    filing fee due hereunder. Pursuant to Rule 415(a)(6) under the Securities Act, the offering of unsold securities under such
    previous registration statement will be deemed terminated as of the date of effectiveness of this registration statement.</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>&nbsp;</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>Pursuant
to Rule 429(b) under the Act, this registration statement, upon effectiveness, also constitutes a post-effective amendment to the prior
registration statement, which post-effective amendment shall become effective concurrently with the effectiveness of this registration
statement and in accordance with Section 8(c) of the Act. If securities previously registered under the prior registration statements
are offered and sold before the effective date of this registration statement, the amount of previously registered securities so sold
will not be included in the combined prospectus herein.</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>The
registrant hereby amends this registration statement on such date or dates as may be necessary to delay its effective date until the
registrant shall file a further amendment which specifically states that this registration statement shall thereafter become effective
in accordance with Section 8(a) of the Securities Act of 1933 or until this registration statement shall become effective on such date
as the commission, acting pursuant to said Section 8(a), may determine.</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>EXPLANATORY
NOTE</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">This
Registration Statement contains two prospectuses:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.25in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; width: 0.25in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">a
    base prospectus relating to the primary offering of up to $50,000,000 of securities of the registrant that the registrant may offer
    and sell in one or more transactions utilizing the shelf registration process described in the base prospectus; and</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">A
    &ldquo;warrants prospectus supplement&rdquo; that, together with the accompanying base prospectus, covers up to 88,911 shares of
    common stock of the registrant issuable upon exercise of outstanding warrants of the registrant.</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
base prospectus immediately follows this explanatory note. The specific terms of any securities to be offered pursuant to the base prospectus
will be specified in a prospectus supplement to the base prospectus. The prospectus supplement relating to the 88,911 shares of common
stock issuable upon the exercise of outstanding warrants immediately and sequentially follows the base prospectus. The 88,911 shares
of common stock that may be offered, issued and sold pursuant to that prospectus supplement are not included in the $50,000,000 of securities
that may be offered, issued and sold by the registrant under the base prospectus.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; color: #DE1A1E"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; color: #DE1A1E"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; color: Red"><B>The
information in this prospectus is not complete and may be changed. We may not sell these securities until the registration statement
filed with Securities and Exchange Commission is effective. This prospectus is not an offer to sell these securities, and it is not soliciting
an offer to buy these securities, in any jurisdiction where the offer or sale is not permitted.</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; color: Red">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center; color: #DE1A1E"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; color: Red"><B>Subject
to Completion, Dated June 11, 2021</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>PROSPECTUS</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>$50,000,000</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>SIGMA
LABS, INC.</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Common
Stock</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Preferred
Stock</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Debt
Securities</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Warrants</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Units</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We,
directly or through underwriters, dealers or agents designated by us from time to time, may offer, issue and sell, together or separately,
up to $50,000,000 in the aggregate of:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">shares
                                            of our common stock, par value $0.001 per share;</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">shares
                                            of our preferred stock, par value $0.001 per share;</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">debt
                                            securities;</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

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<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">warrants
                                            to purchase shares of our common stock, shares of our preferred stock or our debt securities;
                                            and</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">units
                                            consisting of two or more of the securities described above.</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
common stock, the preferred stock, the debt securities, the warrants and the units collectively are referred to in this prospectus as
the &ldquo;<B>securities</B>.&rdquo;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
will provide the specific terms of each offering of securities, including the price and the type and amount of securities to be offered
and sold, in a supplement to this prospectus. You should read this prospectus and the prospectus supplement carefully before you invest.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
may offer and sell these securities directly to purchasers or to or through one or more underwriters, dealers and agents, and on a continuous
or delayed basis. If we sell securities to or through underwriters, dealers or agents, we will include their names and the fees, commissions
and discounts that they will receive, as well as the net proceeds to us, in the prospectus supplement. This prospectus may not be used
to sell our securities unless it is accompanied by the prospectus supplement. The delivery of this prospectus together with a prospectus
supplement relating to the offered securities shall not constitute an offer of any other securities covered by this prospectus.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Investing
in our securities involves a high degree of risk. See &ldquo;Risk Factors&rdquo; on page 5 of this prospectus and in the applicable
prospectus supplement for a discussion of risks that you should consider before you invest in our securities.</FONT></P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Our
common stock is listed on The NASDAQ Capital Market under the symbol &ldquo;SGLB.&rdquo; On June 10, 2021, the last reported sale price
of our common stock on The NASDAQ Capital Market was $4.30 per share. The aggregate market value of our outstanding common stock held
by non-affiliates as of the date of this prospectus is approximately $47,750,934, calculated based upon 10,448,782 shares of outstanding
common stock held by non-affiliates and a per share price of $4.57, the closing sale price of our common stock as reported on The NASDAQ
Capital Market on June 9, 2021 (a date within 60 days of the date hereof). Pursuant to General Instruction I.B.6 of Form S-3, in no event
will we sell securities registered on the registration statement of which this prospectus is a part in a public primary offering with
a value exceeding more than one-third of our public float in any 12-month period if our public float, measured in accordance with such
instruction, remains below $75 million. As of the date hereof, we have offered and sold securities having an aggregate market value of
$14,869,899 pursuant to General Instruction I.B.6 of Form S-3 during the prior 12 calendar month period that ends on, and includes, the
date of this prospectus.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Neither
the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities or passed
upon the adequacy or accuracy of this prospectus. Any representation to the contrary is a criminal offense.</FONT></P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
date of this prospectus is &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;, 2021.</FONT></P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><U>TABLE
OF CONTENTS</U></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>



<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%">
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left; vertical-align: bottom">
    <TD STYLE="padding-bottom: 1.5pt; font: 10pt Times New Roman, Times, Serif; text-align: left">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; text-align: right"><B>Page</B></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left; vertical-align: bottom">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right">&nbsp;</TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left; vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="#a_1">ABOUT THIS PROSPECTUS</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">1</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left; vertical-align: bottom; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="#a_2">SIGMA LABS</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">2</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left; vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="#a_3">RISK FACTORS</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">5</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left; vertical-align: bottom; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="#a_4">CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTS</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">5</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left; vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="#a_5">USE OF PROCEEDS</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">5</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left; vertical-align: bottom; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="#a_6">FINANCIAL RATIOS</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">6</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left; vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="#a_7">THE SECURITIES THAT WE MAY OFFER</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">6</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left; vertical-align: bottom; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="#a_8">DESCRIPTION OF COMMON STOCK</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">6</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left; vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="#a_9">DESCRIPTION OF PREFERRED STOCK</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">8</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left; vertical-align: bottom; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="#a_10">DESCRIPTION OF DEBT SECURITIES</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">10</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left; vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="#a_11">DESCRIPTION OF WARRANTS</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">19</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left; vertical-align: bottom; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="#a_12">DESCRIPTION OF UNITS</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">20</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left; vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="#a_17">PLAN OF DISTRIBUTION</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">20</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left; vertical-align: bottom; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="#a_13">LEGAL MATTERS</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">22</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left; vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="#a_14">EXPERTS</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">22</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left; vertical-align: bottom; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="#a_15">WHERE YOU CAN FIND MORE INFORMATION</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">22</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left; vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="#a_16">INCORPORATION OF CERTAIN INFORMATION BY REFERENCE</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">23</FONT></TD></TR>
</TABLE>
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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A NAME="a_1"></A>ABOUT
THIS PROSPECTUS</FONT></P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">This
prospectus is a part of a registration statement on Form S-3 that we filed with the Securities and Exchange Commission (the &ldquo;<B>SEC</B>&rdquo;)
utilizing a &ldquo;shelf&rdquo; registration process. Under the shelf registration process, we may sell any combination of the securities
described in this prospectus in one or more transactions up to a total dollar amount of $50,000,000.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
rules and regulations of the SEC allow us to omit from this prospectus certain information that is included in the registration statement.
For further information about us and our securities, you should review the registration statement and the exhibits filed with the registration
statement. In addition, the SEC allows us to incorporate by reference into this prospectus information in the reports and other documents
that we file with the SEC, which means that we can disclose important information to you by referring you to those reports and other
documents. The information incorporated by reference is considered to be part of this prospectus, and information that we later file
with the SEC will automatically update and, where applicable, modify or supersede that information. You may read the registration statement
(including its exhibits) and the reports and other documents that we file with the SEC at the SEC&rsquo;s website, <U>www.sec.</U>g<U>ov</U>,
or at the SEC&rsquo;s Public Reference Room described below under the heading &ldquo;Where You Can Find More Information.&rdquo;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">This
prospectus provides you with a general description of the securities we may offer. Each time we offer securities under this shelf registration,
we will provide a prospectus supplement that will contain specific information about the terms of that offering. The prospectus supplement
may also add, update or change information contained in this prospectus. You should read both this prospectus and any prospectus supplement
together with the additional information described under the heading &ldquo;Incorporation of Certain Information by Reference.&rdquo;
To the extent that any information in the prospectus supplement is inconsistent with the information in this prospectus, the information
in the prospectus supplement will modify or supersede this prospectus.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">This
prospectus and the related prospectus supplement do not constitute an offer to sell or the solicitation of an offer to buy any securities
other than the registered securities to which they relate, nor do this prospectus and the related prospectus supplement constitute an
offer to sell or the solicitation of an offer to buy securities in any jurisdiction to any person to whom it is unlawful to make such
offer or solicitation in such jurisdiction.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">You
should not assume that the information contained in this prospectus and the related prospectus supplement is accurate as of any date
subsequent to the date set forth on the front of the document or that any information we have incorporated by reference is correct as
of any date subsequent to the date of the document incorporated by reference, even though this prospectus and any related prospectus
supplement is delivered or securities are sold on a later date. Our business, financial condition, results of operations and prospects
may have changed since those dates.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">You
should rely only on the information contained in this prospectus, in the related prospectus supplement and in any documents incorporated
by reference into this prospectus. We have not authorized any salesperson, dealer or other person to provide you with information different
from that contained in this prospectus, in the related prospectus supplement or in any documents incorporated by reference into this
prospectus, and you are not entitled to rely upon any such different information.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">References
in this prospectus to &ldquo;Sigma,&rdquo; &ldquo;we,&rdquo; &ldquo;us&rdquo; and &ldquo;our&rdquo; refer to Sigma Labs, Inc.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A NAME="a_2"></A>SIGMA
LABS</FONT></P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Sigma
is an 11-year-old software company that was founded by scientist-engineers composed of physicists and metallurgists then working at Los
Alamos National Labs for the entrepreneurial purpose of developing sophisticated metallurgical products. Since 2016, the Company&rsquo;s
focus has been on solving the complex and challenging problem of how to best assure the high quality of metal parts manufactured in laser
powder bed additive manufacturing machines. Sigma and many others believe that until this problem was solved, 3D manufacturing of metal
parts would not be scalable enough to grow past prototyping and mature into a major industry enjoying high quality yields and cost-efficient
production runs. The solution that Sigma developed to solve this problem is In-Process-Quality-Assurance (&ldquo;IPQA&reg;&rdquo;) software
known as PrintRite3D&reg;.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">In
2018, the Sigma team enhanced and added user features to its PrintRite3D&reg; technology. In 2019, the Company began to productize and
test PrintRite3D&reg; on various 3D metal printers at customers&rsquo; sites through the Company&rsquo;s Rapid Test and Evaluation (&ldquo;RTE&rdquo;)
program. Upon receiving favorable responses from the various RTEs, in 2020 the Company began to aggressively market PrintRite3D&reg;.
However, the worldwide COVID-19 pandemic caused a reduction, and in some cases a freeze, in capital spending within the Company&rsquo;s
targeted industries and had what the Company believes to be a short-term negative impact on the Company&rsquo;s expected timing of generating
meaningful revenue. Despite the pandemic, the Company moved forward with its plan to market PrintRite3D&reg; to the following industry
segments: (1) global manufacturing companies with Additive Manufacturing (&ldquo;AM&rdquo;) initiatives; (2) 3D printer Original Equipment
Manufacturers (&ldquo;OEMs&rdquo;) for purchases of licenses and generating fees and royalties thereafter; (3) additive manufacturing
software venders for alliances and licenses for co-sales; and (4) research foundations, standards organizations and universities, all
in service of Sigma&rsquo;s potential for setting the industry standard of measurement by providing data and analytics as a metrics-based
quality standard of metal quality for all 3D laser powder bed manufactured parts, notwithstanding the design, metal, or brand of equipment
upon which parts are manufactured.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Additive
Metal Manufacturing and the role and need for Sigma&rsquo;s technology:</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Additive
Manufacturing, or 3D printing, has been among the most heavily explored manufacturing innovations in the history of modern manufacturing.
The use of 3D printing technology dates back to the 1980s for polymer applications, but the ability to print functional parts from metal
alloys has spurred significant interest and investment into AM over recent years. AM is now reshaping the product design process, entire
supply chains, and the vast landscape of manufacturing. Engineers are embracing new design freedoms to realize valuable product performance
improvements and cost efficiencies with lighter weight, better thermal management capability, better fluid mixing, customization, and/or
the ability to make different structures and textures that yield better part integration.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Several
significant hurdles still prevent the wider adoption of additive technologies. The lack of quality, consistency and standards are most
often cited. The Company believes that the lack of technology such as PrintRite3D&reg;, could be the last sizable barrier to the widespread
industrialization of 3D metal printing. Additionally, many believe that the disruption to complex and rigid supply chains caused by COVID-19
exposed the country&rsquo;s vulnerability to shortages in times of crisis. It appears that many manufacturers are devising strategies
to be able to be more agile, increase their ability to manufacture mission critical parts on demand, with more customization, and closer
to where the end part will be needed.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0.5in; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
anticipate that the enterprise adoption of the technology will accelerate in 2021, evolving over time as follows:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.25in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.25in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Stage
    1 &ndash; International research &amp; development organizations and universities will establish centers of excellence for Advanced
    Manufacturing and be a major resource for enterprises seeking to adopt best practices for AM.</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.25in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.25in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Stage
    2 - Enterprises will start with their own R&amp;D initiatives and select a 3D printer vendor, or vendors, that meets their requirements.
    During this time, they will focus on experimenting with different metal powder alloys, part structures, design guidelines, and in-process
    quality metrics.</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Stage
    3 &ndash; Once R&amp;D is complete, enterprises will select one part to test and move into production, improving the process from
    design to production and confirming the economics and quality of the process.</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Stage
    4 &ndash; International standards will be established by organizations such as NIST, ISO, ATSM, etc., ensuring the consistency of
    components and processes. These standards will become increasingly important as the industry moves to full industrialization.</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Stage
    5 &ndash; As the adoption of AM accelerates, enterprises will utilize multiple 3D printers from multiple manufacturers due to printer
    innovations and advancements, varying production requirements, divisional preferences, etc.</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Stage
    6 &ndash; Independent standards-based, IPQA systems, such as PrintRite3D&reg;, will be required to assure consistent quality in heterogeneous
    factories.</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>PrintRite3D&reg;
Technology and Product Family</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">PrintRite3D&reg;
is an interactive in-process quality assurance system that combines inspection, feedback, data collection and critical analysis. It is
a platform-independent solution that can be installed as a retrofit to an existing 3D printer or requested as a factory option from select
3D printer OEMs. PrintRite3D&reg; provides a high-fidelity, accurate system that can confidently scale to multi-laser 3D metal printers.
The PrintRite3D&reg; system discovers potential anomalies and incorporates machine learning in conjunction with developed metrics to
map those metrics to the post-process data. This provides the ability to reduce post-production testing and costs, while creating a certification
framework that serves the needs of end-users, printer manufacturers, and standards organizations.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company currently offers three versions of PrintRite3D&reg; for Laser Bed Fusion Systems: (1) PrintRite3D&reg; Lite which has a smaller
footprint and is geared towards single-laser machines for Research and Development, or small production lots. (2) PrintRite3D&reg; Pro,
for single, dual and quad laser machines and is suited well for environments with less than 10 machines, and (3) PrintRite3D&reg; Enterprise
for plant-wide networks. PrintRite3D&reg; Lite expands the Company&rsquo;s addressable market to mid-range 3D printer manufacturers for
potential OEM opportunities.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company announced in late 2020 PrintRite3D&reg; for Direct Energy Deposition (&ldquo;DED&rdquo;), opening up another segment of the market
for Sigma to sell and distribute its technology. DED is based on a laser process in which a laser beam generates a melt pool on a substrate.
An additional metallic powder material is transported to the melt pool, where it becomes molten. Due to a feed movement, the molten material
cools down and welding tracks are formed. By placing weld tracks side-by-side and on top of one another, a build-up is obtained. Three-dimensional
structures can then be generated by depositing one layer or track at the top of another previously welded layer or track.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Distribution
Methods</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Sigma
Labs employs a multi-channel distribution model for its IPQA products including a direct sales force, value added resellers (VARs) and
3D printer Original Equipment Manufacturers (OEMs). In 2020, the majority of the Company&rsquo;s revenue was generated by direct sales
in North America and Europe. VARs are currently used in Japan and India. The Company plans to extend its VAR channel outside of North
America and Europe. In 2020 the Company moved aggressively to establish and extend relationships with 3D printer OEMs and expects that
the percentage of the Company&rsquo;s revenue coming from OEMs will increase in 2021 and beyond.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company markets its products through webinars, email and social media campaigns, and participation, both in person and virtually, in
industry events and tradeshows. In addition, the Company collaborates with international standards organizations in the establishment
of standards for AM.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Sources
and Availability of Parts and Materials</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
have important relationships with several suppliers for critical components of our PrintRite3D&reg; systems, in particular optics and
data acquisition components, and development of our user interface. To-date, we have not experienced shortages of components, however,
in some cases COVID-19 has resulted in increased lead times for certain parts. We manage the risk of component shortages by sourcing
backup suppliers, and in the case of our user interface, hiring engineers in-house to support the ongoing development and maintenance.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Agreements
with Original Equipment Manufacturers (&ldquo;OEMs&rdquo;)</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company entered into distribution agreements with two international 3D printer OEMs. The Company supports the OEMs with joint marketing
programs and field sales and technical support personnel to assist in the sale of its technology. It is the Company&rsquo;s intent to
continue to build the OEM channel through distribution relationships with other 3D printer OEMs in the future.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Competition
and Sigma&rsquo;s Intellectual Property Safeguards</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">PrintRite3D&reg;
is a third-party, agnostic In-Process Quality Assurance system designed to provide a consistent, standards-based measurement and prediction
of quality across a heterogeneous collection of 3D printers. Competition is primarily from the printer OEMs who offer their own monitoring
system, usually as a separately priced option to its printers. Sigma believes that the future of AM will consist of factories with various
generations of printers from various manufacturers. The primary reasons that global manufacturers will have machines from various vendors
is that certain machines and technologies are better suited for different applications than others. Additionally, as the industry progresses,
innovation will accelerate, and new leaders will emerge. Finally, many believe that there will be a consolidation of 3D metal manufacturers
and the number of vendors will decrease from approximately 50 to a much small number over the next decade. Although standards for monitoring
are slowly being set by various international standards organizations, it is highly unlikely that printer OEMs will modify their monitoring
systems to work with other OEMs machines. Therefore, we believe that the only way to produce parts with a consistent level of quality
is with a third-party, agnostic, standards based IPQA system, such as PrintRite3D&reg;. To the Company&rsquo;s knowledge, there is no
competitor currently offering an IPQA system with similar functionality which has been validated to operate across as many 3D metal printers
as PrintRite3D&reg;.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Sigma
began its investigation and research into optical and thermal data collection and measurement for quality assurance and intervention
approximately 7 years ago and began to develop its intellectual property protection at that time. The international IP law firm, Kilpatrick
Townsend, has advised the Company on building a patent portfolio, trade secrets, trademarks, etc. and filed and prosecuted patents as
the Company has grown its body of intellectual property.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" ALIGN="CENTER" STYLE="border-collapse: collapse; width: 60%; font: 10pt Times New Roman, Times, Serif">
  <TR STYLE="vertical-align: bottom">
    <TD COLSPAN="13" STYLE="font-weight: bold; font-style: italic; text-align: center; border-bottom: Black 1.5pt solid">Sigma Labs, Inc. Patent Portfolio</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Jurisdiction</TD><TD STYLE="text-align: center; font-weight: bold; padding-bottom: 1.5pt">&nbsp;</TD>
    <TD COLSPAN="3" STYLE="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Granted</TD><TD STYLE="text-align: center; font-weight: bold; padding-bottom: 1.5pt">&nbsp;</TD>
    <TD COLSPAN="3" STYLE="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">In Process</TD><TD STYLE="text-align: center; font-weight: bold; padding-bottom: 1.5pt">&nbsp;</TD>
    <TD COLSPAN="3" STYLE="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Total</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="width: 40%; text-align: center">US</TD><TD STYLE="width: 2%">&nbsp;</TD>
    <TD STYLE="width: 1%; text-align: center">&nbsp;</TD><TD STYLE="width: 16%; text-align: center">13</TD><TD STYLE="width: 1%; text-align: center">&nbsp;</TD><TD STYLE="width: 2%">&nbsp;</TD>
    <TD STYLE="width: 1%; text-align: center">&nbsp;</TD><TD STYLE="width: 17%; text-align: center">14</TD><TD STYLE="width: 1%; text-align: center">&nbsp;</TD><TD STYLE="width: 2%">&nbsp;</TD>
    <TD STYLE="width: 1%; text-align: center">&nbsp;</TD><TD STYLE="width: 15%; text-align: center">27</TD><TD STYLE="width: 1%; text-align: center">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: center">PCT</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD><TD STYLE="text-align: center">-</TD><TD STYLE="text-align: center">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD><TD STYLE="text-align: center">1</TD><TD STYLE="text-align: center">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD><TD STYLE="text-align: center">1</TD><TD STYLE="text-align: center">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: center">EP</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD><TD STYLE="text-align: center">-</TD><TD STYLE="text-align: center">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD><TD STYLE="text-align: center">4</TD><TD STYLE="text-align: center">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD><TD STYLE="text-align: center">4</TD><TD STYLE="text-align: center">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: center">Germany</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD><TD STYLE="text-align: center">-</TD><TD STYLE="text-align: center">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD><TD STYLE="text-align: center">6</TD><TD STYLE="text-align: center">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD><TD STYLE="text-align: center">6</TD><TD STYLE="text-align: center">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: center">China</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD><TD STYLE="text-align: center">1</TD><TD STYLE="text-align: center">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD><TD STYLE="text-align: center">3</TD><TD STYLE="text-align: center">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD><TD STYLE="text-align: center">4</TD><TD STYLE="text-align: center">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: center">Japan</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD><TD STYLE="text-align: center">-</TD><TD STYLE="text-align: center">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD><TD STYLE="text-align: center">1</TD><TD STYLE="text-align: center">&nbsp;</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD><TD STYLE="text-align: center">1</TD><TD STYLE="text-align: center">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: center; padding-bottom: 1.5pt">Korea</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1.5pt solid; text-align: center">&nbsp;</TD><TD STYLE="border-bottom: Black 1.5pt solid; text-align: center">-</TD><TD STYLE="padding-bottom: 1.5pt; text-align: center">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1.5pt solid; text-align: center">&nbsp;</TD><TD STYLE="border-bottom: Black 1.5pt solid; text-align: center">1</TD><TD STYLE="padding-bottom: 1.5pt; text-align: center">&nbsp;</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1.5pt solid; text-align: center">&nbsp;</TD><TD STYLE="border-bottom: Black 1.5pt solid; text-align: center">1</TD><TD STYLE="padding-bottom: 1.5pt; text-align: center">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="font-weight: bold; text-align: center; padding-bottom: 2.5pt">Total</TD><TD STYLE="font-weight: bold; padding-bottom: 2.5pt">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 2.5pt double; font-weight: bold; text-align: center">&nbsp;</TD><TD STYLE="border-bottom: Black 2.5pt double; font-weight: bold; text-align: center">14</TD><TD STYLE="padding-bottom: 2.5pt; font-weight: bold; text-align: center">&nbsp;</TD><TD STYLE="font-weight: bold; padding-bottom: 2.5pt">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 2.5pt double; font-weight: bold; text-align: center">&nbsp;</TD><TD STYLE="border-bottom: Black 2.5pt double; font-weight: bold; text-align: center">30</TD><TD STYLE="padding-bottom: 2.5pt; font-weight: bold; text-align: center">&nbsp;</TD><TD STYLE="font-weight: bold; padding-bottom: 2.5pt">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 2.5pt double; font-weight: bold; text-align: center">&nbsp;</TD><TD STYLE="border-bottom: Black 2.5pt double; font-weight: bold; text-align: center">44</TD><TD STYLE="padding-bottom: 2.5pt; font-weight: bold; text-align: center">&nbsp;</TD></TR>
  </TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Based
upon the evidence of competitors&rsquo; claims received by Sigma to-date, it appears to us that Sigma&rsquo;s solution to the quality
problems of 3D metal printing is a significantly different technological approach than that of our principal known competition. It continues
to appear to the Company that the intellectual property protection of PrintRite3D&reg;&rsquo;s acuity, meaningful metrics of thermal
data correlated to part quality, and usability of its software accord Sigma freedom to operate with its technology and will be a significant
barrier to entry to competitors attempts to pursue the technology path traveled by Sigma.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Our
principal executive offices are located at 3900 Paseo del Sol, Santa Fe, New Mexico 87507, and our telephone number is (505) 438-2576.
Our website address is www.sigmalabsinc.com, although the information on our website is not deemed to be part of this prospectus.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0.1in; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A NAME="a_3"></A>RISK
FACTORS</FONT></P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Investing
in our securities involves a high degree of risk. Before you decide whether to purchase any of our securities, in addition to the other
information in this prospectus and the related prospectus supplement, you should carefully consider the risks described under the heading
&ldquo;Risk Factors&rdquo; in our most recent Annual Report on Form 10-K and subsequently filed Quarterly Reports on Form 10-Q, which
are incorporated by reference into this prospectus, as the same may be updated from time to time by our future filings with the SEC.
You should also carefully consider any additional risks that are described in the prospectus supplement related to the offering of our
securities. If one or more of these risks materializes, our business, financial condition and results of operations may be adversely
affected. In that event, the value of our securities could decline.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A NAME="a_4"></A>CAUTIONARY
NOTE REGARDING FORWARD-LOOKING STATEMENTS</FONT></P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">This
prospectus and the documents incorporated herein by reference contain forward-looking statements, and we anticipate that the related
prospectus supplement will contain forward-looking statements. These statements relate to future events or to our future financial performance
and involve known and unknown risks, uncertainties and other factors that may cause our actual results to be materially different from
any future results expressed or implied by the forward-looking statements. In some cases, you can identify forward-looking statements
by the use of words such as &ldquo;believe,&rdquo; &ldquo;anticipate,&rdquo; &ldquo;intend,&rdquo; &ldquo;plan,&rdquo; &ldquo;estimate,&rdquo;
&ldquo;may,&rdquo; &ldquo;could,&rdquo; &ldquo;anticipate,&rdquo; &ldquo;predict,&rdquo; or &ldquo;expect&rdquo; and similar expressions.
You should not place undue reliance on forward-looking statements since they involve known and unknown risks, uncertainties and other
factors that are, in many cases, beyond our control. Forward-looking statements are not guarantees of future performance. Actual events
or results may differ materially from those discussed in the forward-looking statements as a result of various factors. Except as required
by applicable law, we do not undertake any obligation to publicly update any forward-looking statements, whether as a result of new information,
future developments or otherwise.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
will discuss certain of these risks and uncertainties in greater detail in any prospectus supplement under the heading &ldquo;Risk Factors.&rdquo;
Additional cautionary statements or discussions of risks and uncertainties that could affect our results or the achievement of the expectations
described in forward-looking statements may also be contained in the documents we incorporate by reference into this prospectus, including
our most recent Annual Report on Form 10-K filed with the SEC and our Quarterly Reports on Form 10-Q filed subsequently with the SEC.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A NAME="a_5"></A>USE
OF PROCEEDS</FONT></P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Unless
we state otherwise in the applicable prospectus supplement, we intend to use the net proceeds from the sale of securities described in
this prospectus for general corporate purposes which may include, among other things, acquiring other businesses (although we currently
have no agreement to acquire any business), reducing indebtedness, repurchasing our common stock and making capital expenditures, as
well as for working capital. Until we use the net proceeds for these purposes, we intend to invest the net proceeds in investment-grade,
interest-bearing securities. We have not determined the amounts we plan to spend on any of these areas or the timing of these expenditures.
As a result, our management will have broad discretion regarding the application of the net proceeds from the sale of securities described
in this prospectus.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A NAME="a_6"></A>FINANCIAL
RATIOS</FONT></P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">If
required in connection with any offer of our debt securities or shares of our preferred stock, we will provide a ratio of earnings to
fixed charges or of combined fixed charges and preference dividends to earnings in the related prospectus supplement.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A NAME="a_7"></A>THE
SECURITIES THAT WE MAY OFFER</FONT></P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We,
directly or through underwriters, dealers or agents designated by us from time to time, may offer, issue and sell, together or separately,
up to $50,000,000 in the aggregate of:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">shares
                                            of our common stock, par value $0.001 per share;</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">shares
                                            of our preferred stock, par value $0.001 per share;</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">debt
                                            securities;</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">warrants
                                            to purchase shares of our common stock, shares of our preferred stock or our debt securities;
                                            and</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">units
                                            consisting of two or more of the securities described above.</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
common stock, the preferred stock, the debt securities, the warrants and the units collectively are referred to in this prospectus as
the &ldquo;<B>securities</B>.&rdquo;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
have summarized below the material terms of the various types of securities that we may offer. We will describe in the applicable prospectus
supplement the detailed terms of the securities offered by that supplement. If indicated in the prospectus supplement, the terms of the
offered securities may differ from the terms summarized below.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">This
prospectus may not be used to sell our securities unless it is accompanied by the applicable prospectus supplement.</FONT></P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A NAME="a_8"></A>DESCRIPTION
OF COMMON STOCK</FONT></P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
are presently authorized to issue 24,000,000 shares of $0.001 par value common stock. As of May 31, 2021, 10,493,598 shares of our common
stock were outstanding, and does not include (i) a total of 854,747 shares of common stock issuable upon the exercise of outstanding
options (having a weighted-average exercise price of $4.83 per share); (ii) a total of 3,987,931 shares of common stock issuable upon
the exercise of outstanding warrants (having a weighted average exercise price of $6.10), (iii) a total of 62,832 shares of common stock
issuable upon conversion of all of the shares of the Company&rsquo;s Series D Preferred Stock based on a conversion price of $2.50; (iv)
a total of 61,651 shares issuable upon the conversion of all of the shares of the Company&rsquo;s Series E Convertible Preferred Stock
(the &ldquo;Series E Preferred Shares&rdquo;), based on a conversion price of $10.30; (v) 14,568 shares of our common stock issuable
upon exercise of Unit Purchase Options to acquire up to 11,206 units, at an exercise price of $17.50 per unit, consisting of 11,206 shares
of common stock, and warrants to purchase up to 3,362 shares of common stock at an exercise price of $16.10, and (vi) 11,016 shares of
our common stock reserved for issuance in connection with future awards under our 2013 equity incentive plan. The following summary of
our common stock is qualified by reference to the provisions of our articles of incorporation and bylaws, which are filed as exhibits
to the Form S-3 registration statement of which this prospectus is a part.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
have one class of common stock. Holders of our common stock are entitled to one vote per share on all matters to be voted upon by stockholders
and do not have cumulative voting rights in the election of directors. Holders of shares of common stock are entitled to receive on a
pro rata basis such dividends, if any, as may be declared from time to time by our board of directors in its discretion from funds legally
available for that use, subject to any preferential dividend rights of outstanding preferred stock. They are also entitled to share on
a pro rata basis in any distribution to our common stockholders upon our liquidation, dissolution or winding up, subject to the prior
rights of any outstanding preferred stock. Common stockholders do not have preemptive rights to subscribe to any additional stock issuances
by us, and they do not have the right to require the redemption of their shares or the conversion of their shares into any other class
of our stock. The rights, preferences and privileges of holders of common stock are subject to, and may be adversely affected by, the
rights of the holders of outstanding preferred stock and any series of preferred stock that we may designate and issue in the future.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
following provisions of our articles of incorporation and bylaws could have the effect of delaying or discouraging another party from
acquiring control of us and could encourage persons seeking to acquire control of us to first negotiate with our board of directors:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;
    </FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">a
    classified board of directors with three-year staggered terms, which may delay the ability of stockholders to change the membership
    of a majority of our board of directors; </FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">no
    cumulative voting in the election of directors, which limits the ability of minority stockholders to elect director candidates;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">the
    exclusive right of our board of directors to elect a director to fill a vacancy created by the expansion of the board of directors
    or the resignation, death or removal of a director, which prevents stockholders from being able to fill vacancies on our board of
    directors; </FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">the
    ability of our board of directors to authorize the issuance of additional shares of preferred stock and to determine the terms of
    those shares, including preferences and voting rights, without stockholder approval, which could adversely affect the rights of our
    common stockholders or be used to deter a possible acquisition of our company; </FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;
    </FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">the
    ability of our board of directors to alter our bylaws without obtaining stockholder approval; </FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;
    </FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">the
    required approval of the holders of at least two-thirds of the shares entitled to vote at an election of directors to adopt, amend
    or repeal our bylaws or repeal the provisions of our articles of incorporation and bylaws regarding the election and removal of directors;
    </FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;
    </FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">a
    prohibition on stockholder action by written consent, which forces stockholder action to be taken at an annual or special meeting
    of our stockholders; </FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;
    </FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">the
    requirement that a special meeting of stockholders may be called only by the chairman of the board of directors, the chief executive
    officer, the president (in the absence of a chief executive officer) or the board of directors, which may delay the ability of our
    stockholders to force consideration of a proposal or to take action, including the removal of directors; and </FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;
    </FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">advance
    notice procedures that stockholders must comply with in order to nominate candidates to our board of directors or to propose matters
    to be acted upon at a stockholders&rsquo; meeting, which may discourage or deter a potential acquirer from conducting a solicitation
    of proxies to elect the acquirer&rsquo;s own slate of directors or otherwise attempting to obtain control of us. </FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
transfer agent and registrar of our common stock is Issuer Direct Corporation. The address of our transfer agent and registrar is 1981
Murray Holladay Road, Suite 100 Salt Lake City, Utah 84117, and its telephone number is (801) 272-9294.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Our
common stock is traded on the NASDAQ Capital Market under the symbol &ldquo;SGLB.&rdquo;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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    <DIV STYLE="break-before: page; margin-top: 6pt"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A NAME="a_9"></A>DESCRIPTION
OF PREFERRED STOCK</FONT></P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Under
our articles of incorporation, our board of directors has the authority, without further action by stockholders, to designate one or
more series of preferred stock and to fix the voting powers, designations, preferences, limitations, restrictions and relative rights
granted to or imposed upon the preferred stock, including dividend rights, conversion rights, voting rights, rights and terms of redemption,
liquidation preference and sinking fund terms, any or all of which may be preferential to or greater than the rights of the common stock.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Our
board of directors may authorize the issuance of preferred stock with voting or conversion rights that could adversely affect the voting
power or other rights of the holders of the common stock. The issuance of preferred stock, while providing flexibility in connection
with possible acquisitions and other corporate purposes, could, among other things, have the effect of delaying, deferring or preventing
a change in our control and may adversely affect the market price of the common stock and the voting and other rights of the holders
of common stock.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">In
connection with our underwritten public offering of equity securities on February 21, 2017, we created a series of Preferred Stock called
&ldquo;Series A Preferred Stock.&rdquo; None of such shares were issued in such offering. In our April 6, 2018 private placement, we
issued 1,000 shares of Series B Preferred Stock (&ldquo;Series B Preferred&rdquo;), which were convertible into 100,000 shares of common
stock. All shares of our Series B Preferred have been converted. In our June 26, 2018 public offering of equity securities, we issued
350 shares of Series C Preferred Stock which were initially convertible into 35,000 shares of common stock. Accordingly, as of the date
of this prospectus, all shares of such preferred stock have been fully converted. In connection with the private placements occurring
on January 27, 2020, we created two new series of Preferred Stock: the Series D Preferred Stock and the Series E Preferred Stock. As
of the date hereof, 132 shares of Series D Preferred Stock and 333.33 shares of Series E Preferred Stock are issued and outstanding.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Under
the Certificate of Designations for the Series D Preferred Stock, the Series D Preferred Stock has an initial stated value of $1,000
per share (the &ldquo;Stated Value&rdquo;). Dividends accrue at a dividend rate of 9% per annum (subject to increase upon the occurrence
(and during the continuance) of certain triggering events described therein) will accrue and, on a monthly basis, shall be payable in
kind by the increase of the Stated Value of the Series D Preferred Shares by said amount. The holders of the Series D Preferred Shares
will have the right at any time to convert all or a portion of the Series D Preferred Shares (including, without limitation, accrued
and unpaid dividends and make-whole dividends through the third anniversary of the closing date) into shares of the Company&rsquo;s Common
Stock at the conversion price then in effect, which is $2.50 (subject to adjustment for stock splits, dividends, recapitalizations and
similar events and full ratchet price protection). In addition, a holder may at any time, alternatively, convert all, or any part, of
its Series D Preferred Shares at an alternative conversion price, which equals the lower of the applicable conversion price then in effect,
and the greater of (x) $1.80 and (y) 85% of the average volume weighted average price (&ldquo;VWAP&rdquo;) of the Common Stock for a
five (5) trading day period prior to such conversion. Upon the occurrence of certain triggering events, described in the Certificate
of Designations, including, but not limited to payment defaults, breaches of transaction documents, failure to maintain listing on the
Nasdaq Capital Market, and other defaults set forth therein, the Series D Preferred Shares would become subject to redemption, at the
option of a holder, at a 125% premium to the underlying value of the Series D Preferred Shares being redeemed.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Under
the Certificate of Designations for the Series E Preferred Stock, the Series E Preferred Shares have an initial stated value of $1,500
per share (the &ldquo;Stated Value&rdquo;). Dividends at the initial rate of 9% per annum will accrue and, on a monthly basis, shall
be payable in kind by the increase of the Stated Value of the Series E Preferred Stock by said amount. The holders of the Series E Preferred
Shares have the right at any time to convert all or a portion of the Preferred Shares (including, without limitation, accrued and unpaid
dividends and make-whole dividends through the third anniversary of the closing date) into shares of the Company&rsquo;s Common Stock
at an initial conversion rate determined by dividing the Conversion Amount by the Conversion Price ($1.30 above the consolidated closing
bid price for the trading day prior to the execution of the Securities Purchase Agreement, dated January 27, 2020, between and the purchasers
referenced therein). The Conversion Amount is the sum of the Stated Value of the Series E Preferred Shares then being converted plus
any other unpaid amounts payable with respect to the Series E Preferred Shares being converted plus the &ldquo;Make Whole Amount&rdquo;
(the amount of any dividends that, but for the conversion, would have accrued at the dividend rate for the period through the third anniversary
of the initial issuance date). The Conversion Rate is also subject to adjustment for stock splits, dividends recapitalizations and similar
events.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


<!-- Field: Page; Sequence: 12; Value: 1 -->
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    <DIV STYLE="break-before: page; margin-top: 6pt"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
will describe in a prospectus supplement relating to any series of preferred stock being offered the following terms:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">the
                                            distinguishing designation of the series of preferred stock;</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">the
                                            number of shares of the series of preferred stock offered, the liquidation preference per
                                            share and the offering price of the series;</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">the
                                            dividend rate(s), period(s) or payment date(s) or method(s) of calculation applicable to
                                            the series of preferred stock;</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">whether
                                            dividends are cumulative or non-cumulative and, if cumulative, the date from which dividends
                                            on the series of preferred stock will accumulate;</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">the
                                            procedures for any auction and remarketing, if any, for the series of preferred stock;</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">the
                                            provisions for a sinking fund, if any, for the series of preferred stock;</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">the
                                            provision for redemption, if applicable, of the series of preferred stock;</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">any
                                            listing of the series of preferred stock on any securities exchange;</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">the
                                            terms and conditions, if applicable, upon which the series of preferred stock will be convertible
                                            into common stock, including the conversion price or manner of calculation and conversion
                                            period;</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">voting
                                            rights, if any, of the series of preferred stock;</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">a
                                            discussion of any material or special U.S. federal income tax considerations applicable to
                                            the series of preferred stock;</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">the
                                            relative ranking and preferences of the series of preferred stock as to dividend rights and
                                            rights upon the liquidation, dissolution or winding up of our affairs;</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">any
                                            limitations on issuance of any series of preferred stock ranking senior to or on a parity
                                            with the series of preferred stock being offered as to dividend rights and rights upon liquidation,
                                            dissolution or winding up of our affairs; and</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">any
                                            other specific terms, preferences, rights, limitations or restrictions of the series of preferred
                                            stock.</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Unless
we specify otherwise in the applicable prospectus supplement, the preferred stock will rank, relating to dividends and upon our liquidation,
dissolution or winding up:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">senior
                                            to all classes or series of our common stock and to all of our equity securities ranking
                                            junior to the preferred stock;</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">on
                                            a parity with all of our equity securities the terms of which specifically provide that the
                                            equity securities rank on a parity with the preferred stock; and</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">junior
                                            to all of our equity securities the terms of which specifically provide that the equity securities
                                            rank senior to the preferred stock.</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A NAME="a_10"></A>DESCRIPTION
OF DEBT SECURITIES</FONT></P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
following is a summary of the general terms of the debt securities that we may offer. We will file a prospectus supplement that may contain
additional terms when we issue debt securities. The terms presented here, together with the terms in a related prospectus supplement,
will be a description of the material terms of the debt securities. You should also read the indenture under which the debt securities
are to be issued. We have filed a form of indenture governing different types of debt securities with the SEC as an exhibit to the registration
statement of which this prospectus is a part.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
may issue, from time to time, debt securities, in one or more series. The debt securities we offer will be issued under an indenture
between us and the trustee named in the indenture. The debt securities that we may issue include senior debt securities, subordinated
debt securities, convertible debt securities and exchangeable debt securities.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
following is a summary of the material provisions of the indenture filed as an exhibit to the registration statement of which this prospectus
is a part. For each series of debt securities, the applicable prospectus supplement for the series may change and supplement the summary
below.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">General
Terms of the Indenture</FONT></P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
indenture provides that we may issue debt securities up to the principal amount that we may authorize, and they may be in any currency
or currency unit that we may designate. Except for the limitations on consolidation, merger and sale of all or substantially all of our
assets contained in the indenture, the terms of the indenture do not contain any covenants or other provisions designed to give holders
of any debt securities protection against changes in our operations, financial condition or transactions involving us. For each series
of debt securities, any restrictive covenants for those debt securities will be described in the applicable prospectus supplement for
those debt securities.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
may issue the debt securities issued under the indenture as &ldquo;discount securities,&rdquo; which means they may be sold at a discount
below their stated principal amount. These debt securities, as well as other debt securities that are not issued at a discount, may,
for United States federal income tax purposes, be treated as if they were issued with &ldquo;original issue discount&rdquo; because of
interest payment and other characteristics. Special U.S. federal income tax considerations applicable to debt securities issued with
original issue discount will be described in more detail in any applicable prospectus supplement.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">You
should refer to the prospectus supplement relating to a particular series of debt securities for a description of the following terms
of the debt securities offered by that prospectus supplement and by this prospectus:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">the
                                            title and authorized denominations of those debt securities;</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">any
                                            limit on the aggregate principal amount of that series of debt securities;</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">the
                                            date or dates on which principal and premium, if any, of the debt securities of that series
                                            is payable;</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">interest
                                            rates, and the dates from which interest, if any, on the debt securities of that series will
                                            accrue, and the dates when interest is payable;</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">the
                                            right, if any, to extend the interest payment periods and the duration of the extensions;</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">if
                                            the amount of payments of principal or interest is to be determined by reference to an index
                                            or formula, or based on a coin or currency other than that in which the debt securities are
                                            stated to be payable, the manner in which these amounts are determined and the calculation
                                            agent, if any, with respect thereto;</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">the
                                            place or places where and the manner in which principal of, premium, if any, and interest,
                                            if any, on the debt securities of that series will be payable and the place or places where
                                            those debt securities may be presented for transfer and, if applicable, conversion or exchange;</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">the
                                            period or periods within which, the price or prices at which, the currency or currencies
                                            in which, and other terms and conditions upon which those debt securities may be redeemed,
                                            in whole or in part, at our option or the option of a holder of those securities, if we or
                                            a holder is to have that option;</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">our
                                            obligation or right, if any, to redeem, repay or purchase those debt securities pursuant
                                            to any sinking fund or analogous provision or at the option of a holder of those securities,
                                            and the terms and conditions upon which the debt securities will be redeemed, repaid or purchased,
                                            in whole or in part, pursuant to that obligation;</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">the
                                            terms, if any, on which the debt securities of that series will be subordinate in right and
                                            priority of payment to our other debt;</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">the
                                            denominations in which the debt securities will be issuable;</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">if
                                            other than the entire principal amount of the debt securities when issued, the portion of
                                            the principal amount payable upon acceleration of maturity as a result of a default on our
                                            obligations;</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">whether
                                            the debt securities will be issued in fully registered form without coupons or in a form
                                            registered as to principal only with coupons or in bearer form with coupons;</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">whether
                                            any securities of that series are to be issued in whole or in part in the form of one or
                                            more global securities and the depositary for those global securities;</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">if
                                            other than United States dollars, the currency or currencies in which payment of principal
                                            of or any premium or interest on those debt securities will be payable;</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">if
                                            the principal of or any premium or interest on the debt securities of that series is to be
                                            payable, or is to be payable at our election or the election of a holder of those securities,
                                            in securities or other property, the type and amount of those securities or other property,
                                            or the manner of determining that amount, and the period or periods within which, and the
                                            terms and conditions upon which, any such election may be made;</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">the
                                            events of default and covenants relating to the debt securities that are in addition to,
                                            or modify or delete, those described in this prospectus;</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">conversion
                                            or exchange provisions, if any, including conversion or exchange prices or rates and adjustments
                                            thereto;</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">whether
                                            and upon what terms the debt securities may be defeased, if different from the provisions
                                            set forth in the indenture;</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">the
                                            nature and terms of any security for any secured debt securities;</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">the
                                            terms applicable to any debt securities issued at a discount from their stated principal
                                            amount; and</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">any
                                            other material terms of the debt securities.</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
applicable prospectus supplement will present material United States federal income tax considerations for holders of any debt securities
and the securities exchange or quotation system on which any debt securities are to be listed or quoted.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Conversion
or Exchange Rights</FONT></P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Debt
securities may be convertible into or exchangeable for shares of our equity securities or other securities. The terms and conditions
of conversion or exchange will be stated in the applicable prospectus supplement. The terms will include, among others, the following:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">the
                                            conversion or exchange price;</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">the
                                            conversion or exchange period;</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">provisions
                                            regarding our ability or the ability of any holder to convert or exchange the debt securities;</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">events
                                            requiring adjustment to the conversion or exchange price; and</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">provisions
                                            affecting conversion or exchange in the event of our redemption of the debt securities.</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Consolidation,
Merger or Sale</FONT></P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
cannot consolidate or merge with or into, or transfer or lease all or substantially all of our assets to, any person, unless the successor
corporation or person to which our assets are transferred or leased is organized under the laws of the United States, any state of the
United States or the District of Columbia and it expressly assumes our obligations under the debt securities and the indenture. In addition,
we cannot complete such a transaction unless immediately after completing the transaction, no event of default under the indenture, and
no event that, after notice or lapse of time or both, would become an event of default under the indenture, has occurred and is continuing.
When the person to whom our assets are transferred or leased has assumed our obligations under the debt securities and the indenture,
we will be discharged from all our obligations under the debt securities and the indenture except in limited circumstances.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">This
covenant would not apply to any recapitalization transaction, a change of control affecting us or a highly leveraged transaction, unless
the transaction or change of control were structured to include a merger or consolidation or transfer or lease of all or substantially
all of our assets.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Events
of Default</FONT></P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
indenture provides that the following will be &ldquo;events of default&rdquo; with respect to any series of debt securities:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">failure
                                            to pay interest for thirty days after the date payment is due and payable;</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">failure
                                            to pay principal or premium, if any, on any debt security when due, either at maturity, upon
                                            any redemption, by declaration or otherwise and, in the case of technical or administrative
                                            difficulties, only if such default persists for a period of more than three business days;</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">failure
                                            to make sinking fund payments when due and continuance of such default for a period of 30
                                            days;</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">failure
                                            to perform other covenants for 60 days after notice that performance was required;</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">events
                                            in bankruptcy, insolvency or reorganization relating to us; or</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">any
                                            other event of default provided in the applicable officer&#8217;s certificate, resolution
                                            of our board of directors or the supplemental indenture under which we issue a series of
                                            debt securities.</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">An
event of default for a particular series of debt securities does not necessarily constitute an event of default for any other series
of debt securities issued under the indenture. For each series of debt securities, any modifications to the above events of default will
be described in the applicable prospectus supplement for those debt securities.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
indenture provides that if an event of default specified in the first, second, third, fourth or sixth bullets above occurs and is continuing,
either the trustee or the holders of at least 25% in aggregate principal amount of the outstanding debt securities of that series may
declare the principal amount of all those debt securities (or, in the case of discount securities or indexed securities, that portion
of the principal amount as may be specified in the terms of that series) to be due and payable immediately. If an event of default specified
in the fifth bullet above occurs and is continuing, then the principal amount of all those debt securities (or, in the case of discount
securities or indexed securities, that portion of the principal amount as may be specified in the terms of that series) will be due and
payable immediately, without any declaration or other act on the part of the trustee or any holder. In certain cases, holders of a majority
in principal amount of the outstanding debt securities of any series may, on behalf of holders of all those debt securities, rescind
and annul a declaration of acceleration.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
indenture imposes limitations on suits brought by holders of debt securities against us. Except for actions for payment of overdue principal
or interest, no holder of debt securities of any series may institute any action against us under the indenture unless:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">the
                                            holder has previously given to the trustee written notice of default and continuance of such
                                            default;</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">the
                                            holders of at least 25% in principal amount of the outstanding debt securities of the affected
                                            series have requested that the trustee institute the action;</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">the
                                            requesting holders have offered the trustee indemnity for the reasonable expenses and liabilities
                                            that may be incurred by bringing the action;</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">the
                                            trustee has not instituted the action within 60 days of the request and offer of indemnity;
                                            and</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">the
                                            trustee has not received inconsistent direction by the holders of a majority in principal
                                            amount of the outstanding debt securities of the affected series.</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
will be required to file annually with the trustee a certificate, signed by one of our officers, stating whether or not the officer knows
of any default by us in the performance, observance or fulfillment of any condition or covenant of the indenture.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Discharge,
Defeasance and Covenant Defeasance</FONT></P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
can discharge or decrease our obligations under the indenture as stated below.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
may discharge obligations to holders of any series of debt securities that have not already been delivered to the trustee for cancellation
and that have either become due and payable or are by their terms to become due and payable, or are scheduled for redemption, within
one year. We may effect a discharge by irrevocably depositing with the trustee cash or government obligations denominated in the currency
of the debt securities, as trust funds, in an amount certified to be enough to pay when due, whether at maturity, upon redemption or
otherwise, the principal of, and any premium and interest on, the debt securities and any mandatory sinking fund payments.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Unless
otherwise provided in the applicable prospectus supplement, we may also discharge any and all of our obligations to holders of any series
of debt securities at any time, which we refer to as defeasance. We may also be released from the obligations imposed by any covenants
of any outstanding series of debt securities and provisions of the indenture, and we may omit to comply with those covenants without
creating an event of default under the trust declaration, which we refer to as covenant defeasance. We may effect defeasance and covenant
defeasance only if, among other things:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">we
                                            irrevocably deposit with the trustee cash or government obligations denominated in the currency
                                            of the debt securities, as trust funds, in an amount certified to be enough to pay at maturity,
                                            or upon redemption, the principal (including any mandatory sinking fund payments) of, and
                                            any premium and interest on, all outstanding debt securities of the series; and</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">we
                                            deliver to the trustee an opinion of counsel from a nationally recognized law firm to the
                                            effect that the holders of the series of debt securities will not recognize income, gain
                                            or loss for U.S. federal income tax purposes as a result of the defeasance or covenant defeasance
                                            and that defeasance or covenant defeasance will not otherwise alter the holders&#8217; U.S.
                                            federal income tax treatment of principal, and any premium and interest payments on, the
                                            series of debt securities.</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">In
the case of a defeasance by us, the opinion we deliver must be based on a ruling of the Internal Revenue Service issued, or a change
in U.S. federal income tax law occurring, after the date of the indenture, since such a result would not occur under the U.S. federal
income tax laws in effect on that date.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Although
we may discharge or decrease our obligations under the indenture as described in the preceding paragraphs, we may not avoid, among other
things, our duty to register the transfer or exchange of any series of debt securities, to replace any temporary, mutilated, destroyed,
lost or stolen series of debt securities or to maintain an office or agency in respect of any series of debt securities.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Modification
of the Indenture</FONT></P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
indenture provides that we and the trustee may enter into supplemental indentures without the consent of the holders of debt securities
to, among other things:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

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<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">evidence
                                            the assumption by a successor entity of our obligations;</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">add
                                            to our covenants for the benefit of the holders of debt securities, or to surrender any rights
                                            or power conferred upon us;</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">add
                                            any additional events of default;</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">cure
                                            any ambiguity or correct any inconsistency or defect in the indenture;</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">add
                                            to, change or eliminate any of the provisions of the indenture in a manner that will become
                                            effective only when there is no outstanding debt security which is entitled to the benefit
                                            of the provision as to which the modification would apply;</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">secure
                                            any debt securities;</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">establish
                                            the forms or terms of debt securities of any series;</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">evidence
                                            and provide for the acceptance of appointment by a successor trustee and add to or change
                                            any of the provisions of the indenture as is necessary for the administration of the trusts
                                            by more than one trustee;</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">modify,
                                            eliminate or add to the provisions of the indenture as shall be necessary to effect the qualification
                                            of the indenture under the Trust Indenture Act of 1939, as amended, or under any similar
                                            federal statute later enacted, and to add to the indenture such other provisions as may be
                                            expressly required by the Trust Indenture Act; and</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">make
                                            any other provisions with respect to matters or questions arising under the indenture that
                                            will not be inconsistent with any provision of the indenture as long as the new provisions
                                            do not adversely affect the interests of the holders of any outstanding debt securities of
                                            any series created prior to the modification.</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
indenture also provides that we and the trustee may, with the consent of the holders of not less than a majority in aggregate principal
amount of debt securities of each series of debt securities affected by such supplemental indenture then outstanding, add any provisions
to, or change in any manner, eliminate or modify in any way the provisions of, the indenture or any supplemental indenture or modify
in any manner the rights of the holders of the debt securities. We and the trustee may not, however, without the consent of the holder
of each outstanding debt security affected thereby:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">extend
                                            the final maturity of any debt security;</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">reduce
                                            the principal amount or premium, if any;</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">reduce
                                            the rate or extend the time of payment of interest;</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">reduce
                                            the amount of the principal of any debt security issued with an original issue discount that
                                            is payable upon acceleration;</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">change
                                            the currency in which the principal, and any premium or interest, is payable;</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">impair
                                            the right to institute suit for the enforcement of any payment on any debt security when
                                            due;</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">if
                                            applicable, adversely affect the right of a holder to convert or exchange a debt security;
                                            or</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">reduce
                                            the percentage of holders of debt securities of any series whose consent is required for
                                            any modification of the indenture or for waivers of compliance with or defaults under the
                                            indenture with respect to debt securities of that series.</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
indenture provides that the holders of not less than a majority in aggregate principal amount of the then-outstanding debt securities
of any series, by notice to the relevant trustee, may on behalf of the holders of the debt securities of that series waive any default
and its consequences under the indenture except:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">a
                                            default in the payment of, any premium and any interest on, or principal of, any such debt
                                            security held by a nonconsenting holder; or</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">a
                                            default in respect of a covenant or provision of the indenture that cannot be modified or
                                            amended without the consent of the holder of each outstanding debt security of each series
                                            affected.</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Registered
Global Securities and Book Entry System</FONT></P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
debt securities of a series may be issued in whole or in part in book-entry form and will be represented by one or more fully registered
global securities. We will deposit any registered global securities with a depositary or with a nominee for a depositary identified in
the applicable prospectus supplement and registered in the name of such depositary or nominee. In such case, we will issue one or more
registered global securities denominated in an amount equal to the aggregate principal amount of all of the debt securities of the series
to be issued and represented by such registered global security or securities. This means that we will not issue certificates to each
holder.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Unless
and until it is exchanged in whole or in part for debt securities in definitive registered form, a registered global security may not
be transferred except as a whole:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">by
                                            the depositary for the registered global security to its nominee;</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">by
                                            a nominee of the depositary to the depositary or another nominee of the depositary; or</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">by
                                            the depositary or its nominee to a successor of the depositary or a nominee of the successor.</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
prospectus supplement relating to a series of debt securities will describe the specific terms of the depositary arrangement involving
any portion of the series represented by a registered global security. We anticipate that the following provisions will apply to all
depositary arrangements for debt securities:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">ownership
                                            of beneficial interests in a registered global security will be limited to persons that have
                                            accounts with the depositary for such registered global security, these persons being referred
                                            to as &#8220;participants,&#8221; or persons that may hold interests through participants;</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">upon
                                            the issuance of a registered global security, the depositary for the registered global security
                                            will credit, on its book-entry registration and transfer system, the participants&#8217;
                                            accounts with the respective principal amounts of the debt securities represented by the
                                            registered global security beneficially owned by the participants;</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">any
                                            dealers, underwriters, or agents participating in the distribution of the debt securities
                                            will designate the accounts to be credited; and</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">ownership
                                            of beneficial interests in the registered global security will be shown on, and the transfer
                                            of the ownership interests will be effected only through, records maintained by the depositary
                                            for the registered global security for interests of participants, and on the records of participants
                                            for interests of persons holding through participants.</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
laws of some states may require that specified purchasers of securities take physical delivery of the securities in definitive form.
These laws may limit the ability of those persons to own, transfer or pledge beneficial interests in registered global securities.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">So
long as the depositary for a registered global security, or its nominee, is the registered owner of the registered global security, the
depositary or such nominee, as the case may be, will be considered the sole owner or holder of the debt securities represented by the
registered global security for all purposes under the indenture. Except as stated below, owners of beneficial interests in a registered
global security:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">will
                                            not be entitled to have the debt securities represented by a registered global security registered
                                            in their names;</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">will
                                            not receive or be entitled to receive physical delivery of the debt securities in the definitive
                                            form; and</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">will
                                            not be considered the owners or holders of the debt securities under the relevant indenture.</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Accordingly,
each person owning a beneficial interest in a registered global security must rely on the procedures of the depositary for the registered
global security and, if the person is not a participant, on the procedures of a participant through which the person owns its interest,
to exercise any rights of a holder under the indenture.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
understand that under existing industry practices, if we request any action of holders or if an owner of a beneficial interest in a registered
global security desires to give or take any action that a holder is entitled to give or take under the indenture, the depositary for
the registered global security would authorize the participants holding the relevant beneficial interests to give or take the action,
and the participants would authorize beneficial owners owning through the participants to give or take the action or would otherwise
act upon the instructions of beneficial owners holding through them.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
will make payments of principal and premium, if any, and interest, if any, on debt securities represented by a registered global security
registered in the name of a depositary or its nominee to the depositary or its nominee, as the case may be, as the registered owners
of the registered global security. Neither we nor the trustee, or any other agent of ours or the trustee will be responsible or liable
for any aspect of the records relating to, or payments made on account of, beneficial ownership interests in the registered global security
or for maintaining, supervising or reviewing any records relating to the beneficial ownership interests.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
expect that the depositary for any debt securities represented by a registered global security, upon receipt of any payments of principal
and premium, if any, and interest, if any, in respect of the registered global security, will credit participants&rsquo; accounts with
payments in amounts proportionate to their respective beneficial interests in the registered global security as shown on the records
of the depositary. We also expect that standing customer instructions and customary practices will govern payments by participants to
owners of beneficial interests in the registered global security held through the participants, as is now the case with the securities
held for the accounts of customers in bearer form or registered in &ldquo;street name.&rdquo; We also expect that any of these payments
will be the responsibility of the participants.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">If
the depositary for any debt securities represented by a registered global security is at any time unwilling or unable to continue as
depositary or stops being a clearing agency registered under the Securities Exchange Act of 1934, as amended, we will appoint an eligible
successor depositary. If we fail to appoint an eligible successor depositary within 90 days, we will issue the debt securities in definitive
form in exchange for the registered global security. In addition, we may at any time and in our sole discretion decide not to have any
of the debt securities of a series represented by one or more registered global securities. In that event, we will issue debt securities
of the series in a definitive form in exchange for all of the registered global securities representing the debt securities. The trustee
will register any debt securities issued in definitive form in exchange for a registered global security in the name or names as the
depositary, based upon instructions from its participants, shall instruct the trustee.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
may also issue bearer debt securities of a series in the form of one or more global securities, referred to as &ldquo;bearer global securities.&rdquo;
We will deposit these securities with a depositary identified in the prospectus supplement relating to the series. The prospectus supplement
relating to a series of debt securities represented by a bearer global security will describe the applicable terms and procedures. These
will include the specific terms of the depositary arrangement and any specific procedures for the issuance of debt securities in definitive
form in exchange for a bearer global security, in proportion to the series represented by a bearer global security.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Concerning
the Trustee</FONT></P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
indenture provides that there may be more than one trustee under the indenture, each for one or more series of debt securities. If there
are different trustees for different series of debt securities, each trustee will be a trustee of a trust under the indenture separate
and apart from the trust administered by any other trustee under that indenture. Except as otherwise indicated in this prospectus or
any prospectus supplement, any action permitted to be taken by a trustee may be taken by such trustee only on the one or more series
of debt securities for which it is the trustee under the indenture. Any trustee under the indenture may resign or be removed from one
or more series of debt securities. All payments of principal of, and any premium and interest on, and all registration, transfer, exchange,
authentication and delivery of, the debt securities of a series will be effected by the trustee for that series at an office designated
by the trustee.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
indenture provides that, except during the continuance of an event of default, the trustee will perform only such duties as are specifically
set forth in the indenture. During the existence of an event of default, the trustee will exercise those rights and powers vested in
it under the indenture and use the same degree of care and skill in its exercise as a prudent person would exercise under the circumstances
in the conduct of such person&rsquo;s own affairs.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">If
the trustee becomes a creditor of ours, the indenture places limitations on the right of the trustee to obtain payment of claims or to
realize on property received in respect of any such claim as security or otherwise. The trustee may engage in other transactions. If
it acquires any conflicting interest relating to any duties concerning the debt securities, however, it must eliminate the conflict or
resign as trustee.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">No
Individual Liability of Incorporators, Stockholders, Officers or Directors</FONT></P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
indenture provides that no past, present or future director, officer, stockholder or employee of ours, any of our affiliates, or any
successor corporation, in their capacity as such, shall have any individual liability for any of our obligations, covenants or agreements
under the debt securities or the indenture.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Governing
Law</FONT></P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
indenture and the debt securities will be governed by, and construed in accordance with, the laws of the State of New York.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A NAME="a_11"></A>DESCRIPTION
OF WARRANTS</FONT></P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
may issue warrants for the purchase of shares of our common stock or preferred stock or of debt securities. We may issue warrants independently
or together with other securities, and the warrants may be attached to or separate from any offered securities. If a series of warrants
will be issued under a separate warrant agreement to be entered into between us and the investors or a warrant agent, we will so specify
in the applicable prospectus supplement. The following summary of the material provisions of the warrants and warrant agreements is subject
to, and qualified in its entirety by reference to, all the provisions of the warrants and any warrant agreement applicable to a particular
series of warrants. The terms of any warrants offered under a prospectus supplement may differ from the terms described below. We urge
you to read the applicable prospectus supplement, as well as the complete warrants and warrant agreements that contain the terms of the
warrants.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
material terms of any issue of warrants will be described in the prospectus supplement relating to the issue. Those terms may include:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">the
                                            number of shares of common stock or preferred stock purchasable upon the exercise of warrants
                                            to purchase such shares and the price at which such number of shares may be purchased upon
                                            such exercise;</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">a
                                            summary of the designation and terms (including, without limitation, liquidation, dividend,
                                            conversion and voting rights) of the series of preferred stock purchasable upon exercise
                                            of warrants to purchase preferred stock as set forth in the certificate of designation for
                                            such series of preferred stock;</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">the
                                            principal amount of debt securities that may be purchased upon exercise of a debt warrant
                                            and the exercise price for the warrants, which may be payable in cash, securities or other
                                            property;</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">the
                                            date, if any, on and after which the warrants and the related debt securities, preferred
                                            stock or common stock will be separately transferable;</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">the
                                            terms of any rights to redeem or call the warrants;</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">the
                                            date on which the right to exercise the warrants will commence and the date on which the
                                            right will expire;</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">U.S.
                                            federal income tax consequences applicable to the warrants; and</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">any
                                            additional terms of the warrants, including terms, procedures, and limitations relating to
                                            the exchange, exercise and settlement of the warrants.</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Each
warrant will entitle its holder to purchase the principal amount of debt securities or the number of shares of preferred stock or common
stock at the exercise price set forth in, or calculable as set forth in, the applicable prospectus supplement. Unless we otherwise specify
in the applicable prospectus supplement, holders of the warrants may exercise the warrants at any time up to the specified time on the
expiration date that we set forth in the applicable prospectus supplement. After the close of business on the expiration date, unexercised
warrants will become void.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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    <!-- Field: /Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">A
holder of warrant certificates may exchange them for new warrant certificates of different denominations, present them for registration
of transfer and exercise them at the corporate trust office of the warrant agent or any other office indicated in the applicable prospectus
supplement. Until any warrants to purchase debt securities are exercised, the holder of the warrants will not have any rights of holders
of the debt securities that can be purchased upon exercise, including any rights to receive payments of principal, premium or interest
on the underlying debt securities or to enforce covenants in the applicable indenture. Until any warrants to purchase common stock or
preferred stock are exercised, the holders of the warrants will not have any rights of holders of the underlying common stock or preferred
stock, including any rights to receive dividends or payments upon any liquidation, dissolution or winding up on the common stock or preferred
stock, if any.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A NAME="a_12"></A>DESCRIPTION
OF UNITS</FONT></P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
may issue units consisting of any combination of the other types of securities offered under this prospectus in one or more series. We
may elect to evidence each series of units by unit certificates that we will issue under a separate unit agreement. We may enter into
unit agreements with a unit agent. Each unit agent will be a bank or trust company that we select. We will indicate the name and address
of the unit agent in the applicable prospectus supplement relating to a particular series of units.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
following description, together with the additional information included in any applicable prospectus supplement, summarizes the general
features of the units that we may offer under this prospectus. You should read any prospectus supplement related to the series of units
being offered, as well as the complete unit agreements that contain the terms of the units. Specific unit agreements will contain additional
important terms, and we will file as an exhibit to the registration statement of which this prospectus is a part, or will incorporate
by reference from another report that we file with the SEC, the form of each unit agreement relating to units offered under this prospectus.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">If
we offer any units, certain terms of that series of units will be described in the applicable prospectus supplement, including, without
limitation, the following, as applicable:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">the
                                            title of the series of units;</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">identification
                                            and description of the separate constituent securities comprising the units;</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">the
                                            price or prices at which the units will be issued;</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">the
                                            date, if any, on and after which the constituent securities comprising the units will be
                                            separately transferable;</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">a
                                            discussion of certain U.S. federal income tax considerations applicable to the units; and</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">any
                                            other material terms of the units and their constituent securities.</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A NAME="a_17"></A>PLAN
OF DISTRIBUTION</FONT></P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
may sell the securities covered by this prospectus from time to time pursuant to underwritten public offerings, negotiated transactions,
block trades or a combination of these methods or through underwriters or dealers, through agents and/or directly to one or more purchasers.
The securities may be distributed from time to time in one or more transactions:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">at
                                            a fixed price or prices, which may be changed;</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">at
                                            market prices prevailing at the time of sale;</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">at
                                            prices related to such prevailing market prices; or</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">at
                                            negotiated prices.</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Each
time that we sell securities covered by this prospectus, we will provide a prospectus supplement or supplements that will describe the
method of distribution and set forth the terms and conditions of the offering of such securities, including the offering price of the
securities and the proceeds to us, if applicable.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Offers
to purchase the securities being offered by this prospectus may be solicited directly. Agents may also be designated to solicit offers
to purchase the securities from time to time. Any agent involved in the offer or sale of our securities will be identified in a prospectus
supplement.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">If
a dealer is utilized in the sale of the securities being offered by this prospectus, the securities will be sold to the dealer, as principal.
The dealer may then resell the securities to the public at varying prices to be determined by the dealer at the time of resale.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">If
an underwriter is utilized in the sale of the securities being offered by this prospectus, an underwriting agreement will be executed
with the underwriter at the time of sale and the name of any underwriter will be provided in the prospectus supplement that the underwriter
will use to make resales of the securities to the public. In connection with the sale of the securities, we or the purchasers of securities
for whom the underwriter may act as agent, may compensate the underwriter in the form of underwriting discounts or commissions. The underwriter
may sell the securities to or through dealers, and those dealers may receive compensation in the form of discounts, concessions or commissions
from the underwriters and/or commissions from the purchasers for which they may act as agent. Unless otherwise indicated in a prospectus
supplement, an agent will be acting on a best efforts basis and a dealer will purchase securities as a principal, and may then resell
the securities at varying prices to be determined by the dealer.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Any
compensation paid to underwriters, dealers or agents in connection with the offering of the securities, and any discounts, concessions
or commissions allowed by underwriters to participating dealers, will be described in the applicable prospectus supplement. Underwriters,
dealers and agents participating in the distribution of the securities may be deemed to be underwriters within the meaning of the Securities
Act of 1933, as amended (the &ldquo;<B>Securities Act</B>&rdquo;), and any discounts and commissions received by them and any profit
realized by them on resale of the securities may be deemed to be underwriting discounts and commissions. We may enter into agreements
to indemnify underwriters, dealers and agents against civil liabilities, including liabilities under the Securities Act, or to contribute
to payments they may be required to make in respect thereof and to reimburse those persons for certain expenses.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Any
common stock issued by us will be traded on The Nasdaq Capital Market unless we specify otherwise in the prospectus supplement, but any
other securities may or may not be publicly traded or listed on a national securities exchange. To facilitate the offering of securities,
certain persons participating in the offering may engage in transactions that stabilize, maintain or otherwise affect the price of the
securities. This may include over-allotments or short sales of the securities, which involve the sale by persons participating in the
offering of more securities than were sold to them. In these circumstances, these persons would cover such over-allotments or short positions
by making purchases in the open market or by exercising their over-allotment option, if any. In addition, these persons may stabilize
or maintain the price of the securities by bidding for or purchasing securities in the open market or by imposing penalty bids, whereby
selling concessions allowed to dealers participating in the offering may be reclaimed if securities sold by them are repurchased in connection
with stabilization transactions. The effect of these transactions may be to stabilize or maintain the market price of the securities
at a level above that which might otherwise prevail in the open market. These transactions may be discontinued at any time.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">If
indicated in the applicable prospectus supplement, underwriters or other persons acting as agents may be authorized to solicit offers
by institutions or other suitable purchasers to purchase the securities at the public offering price set forth in the prospectus supplement,
pursuant to delayed delivery contracts providing for payment and delivery on the date or dates stated in the prospectus supplement. These
purchasers may include, among others, commercial and savings banks, insurance companies, pension funds, investment companies and educational
and charitable institutions. Delayed delivery contracts will be subject to the condition that the purchase of the securities covered
by the delayed delivery contracts will not at the time of delivery be prohibited under the laws of any jurisdiction in the United States
to which the purchaser is subject. The underwriters and agents will not have any responsibility with respect to the validity or performance
of these contracts.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
may engage in at-the-market offerings into an existing trading market in accordance with Rule 415(a)(4) under the Securities Act. In
addition, we may enter into derivative transactions with third parties, or sell securities not covered by this prospectus to third parties
in privately negotiated transactions. If the applicable prospectus supplement so indicates, in connection with those derivatives, the
third parties may sell securities covered by this prospectus and the applicable prospectus supplement, including in short sale transactions.
If so, the third party may use securities pledged by us or borrowed from us or others to settle those sales or to close out any related
open borrowings of stock, and may use securities received from us in settlement of those derivatives to close out any related open borrowings
of stock. The third party in such sale transactions will be an underwriter and, if not identified in this prospectus, will be named in
the applicable prospectus supplement. In addition, we may otherwise loan or pledge securities to a financial institution or other third
party that in turn may sell the securities short using this prospectus and an applicable prospectus supplement. Such financial institution
or other third party may transfer its economic short position to investors in our securities or in connection with a concurrent offering
of other securities.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
specific terms of any lock-up provisions in respect of any given offering will be described in the applicable prospectus supplement.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
underwriters, dealers and agents may engage in transactions with us, or perform services for us, in the ordinary course of business for
which they receive compensation.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A NAME="a_13"></A>LEGAL
MATTERS</FONT></P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">TroyGould
PC, Los Angeles, California, has issued an opinion about certain matters with respect to the securities offered by this prospectus. Certain
attorneys employed by TroyGould PC beneficially own shares of our common stock constituting in the aggregate less than 1% of our outstanding
shares of common stock. Additional legal matters may be passed upon for us, or for any underwriters, dealers or agents, by counsel that
we name in the applicable prospectus supplement.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A NAME="a_14"></A>EXPERTS</FONT></P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
financial statements of Sigma Labs, Inc. as of December 31, 2020 and December 31, 2019, and for the years then ended, which are incorporated
into this prospectus by reference to our Annual Report on Form 10-K for the year ended December 31, 2020, have been so incorporated in
reliance on the report of Haynie &amp; Company, an independent registered public accounting firm, given on the authority of said firm
as experts in auditing and accounting.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A NAME="a_15"></A>WHERE
YOU CAN FIND MORE INFORMATION</FONT></P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
are subject to the information and periodic reporting requirements of the Securities Exchange Act of 1934, as amended (the &ldquo;<B>Exchange
Act</B>&rdquo;) and, in accordance with that act, file periodic reports and other information with the SEC. The periodic reports and
other information filed by us are available for inspection and copying at prescribed rates at the SEC&rsquo;s Public Reference Room at
100 F Street, N.E., Washington, D.C. 20549. Please call the SEC at 1-800-SEC-0330 for further information about the operation of the
SEC&rsquo;s Public Reference Room. The SEC also maintains an Internet site that contains all reports and other information that we file
electronically with the SEC. The address of that website is www.sec.gov.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">This
prospectus is part of a registration statement on Form S-3 that we have filed with the SEC under the Securities Act for the securities
offered under this prospectus (the &ldquo;<B>Form S-3 Registration Statement</B>&rdquo;). The Form S-3 Registration Statement, including
the exhibits to the Form S-3 Registration Statement, contains additional information about us and the securities offered by this prospectus.
The rules and regulations of the SEC allow us to omit from this prospectus certain information that is included in the Form S-3 Registration
Statement. For further information about us and our securities, you should review the Form S-3 Registration Statement and the exhibits
filed with the Form S-3 Registration Statement.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A NAME="a_16"></A>INCORPORATION
OF CERTAIN INFORMATION BY REFERENCE</FONT></P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
SEC allows us to incorporate into this prospectus by reference the information we file with it, which means that we can disclose important
information to you by referring you to the documents containing that information. The information incorporated by reference is considered
to be part of this prospectus, and information that we later file with the SEC will automatically update and, where applicable, modify
or supersede that information.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
incorporate by reference into this prospectus the following documents that we have filed, or will file, with the SEC:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="https://www.sec.gov/Archives/edgar/data/788611/000149315221006709/form10-k.htm" STYLE="-sec-extract: exhibit">our annual report on Form 10-K for the fiscal year ended December 31, 2020 filed with the SEC on March 24, 2021;</A></FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="https://www.sec.gov/Archives/edgar/data/788611/000149315221009466/form10-q.htm" STYLE="-sec-extract: exhibit">our quarterly report on Form 10-Q for the quarterly period ended March 31, 2021 filed with the SEC on April 22,2021;</A></FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">our
    Current Reports on Form 8-K filed with the SEC on <A HREF="https://www.sec.gov/Archives/edgar/data/788611/000149315221000848/form8-k.htm" STYLE="-sec-extract: exhibit">January 12, 2021</A>, <A HREF="https://www.sec.gov/Archives/edgar/data/788611/000149315221007229/form8-k.htm" STYLE="-sec-extract: exhibit">March 30, 2021</A> and <A HREF="https://www.sec.gov/Archives/edgar/data/788611/000149315221012847/form8-k.htm" STYLE="-sec-extract: exhibit">May 25, 2021</A>,</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="https://www.sec.gov/Archives/edgar/data/788611/000107878217000179/form8a021017_8a12b.htm" STYLE="-sec-extract: exhibit">the description of our Common Stock contained in our Registration Statement on Form 8-A (File No. 001-38015) filed with the SEC on February 14, 2017, including any amendment or reports filed for the purpose of updating such description.</A></FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Each
    document that we file with the SEC under Section 13(a), 13(c), 14 or 15(d) of the Exchange Act after the date on which we filed the
    Form S-3 Registration Statement and before the termination of this offering, with information in each such filing to be deemed to
    be incorporated by reference into this prospectus as of the date we make the filing with the SEC.</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">You
may request a copy of any of these filings from us at no cost by writing or calling our Chief Executive Officer at the following address
or telephone number: Sigma Labs, Inc.; 3900 Paseo del Sol, Santa Fe, New Mexico 87507; (505) 438-2576.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Notwithstanding
the foregoing, no portion of any document that is &ldquo;furnished&rdquo; but not &ldquo;filed&rdquo; in accordance with SEC rules under
Exchange Act shall be deemed to be incorporated by reference into the Form S-3 Registration Statement. Any statement contained in the
Form S-3 Registration Statement or in a document incorporated by reference into the Form S-3 Registration Statement will be deemed to
be modified or superseded for purposes of the Form S-3 Registration Statement to the extent that a statement contained in the Form S-3
Registration Statement or in any other subsequently filed document that is incorporated by reference into the Form S-3 Registration Statement
modifies or supersedes the statement. Any statement so modified or superseded will not be deemed, except as so modified or superseded,
to constitute a part of the Form S-3 Registration Statement.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>PROSPECTUS</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>$50,000,000</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>SIGMA
LABS, INC.</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Common
Stock</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Preferred
Stock</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Debt
Securities</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Warrants</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Units</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>The
date of this prospectus is &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;, 2021.</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; color: #FF4338">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; color: #FF4338"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; color: Red"><B>The
information in this prospectus is not complete and may be changed. These securities may not be sold until the registration statement
filed with the Securities and Exchange Commission becomes effective. This prospectus is not an offer to sell these securities, and it
is not a solicitation of an offer to buy these securities, in any state where the offer or sale is not permitted.</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; color: Red">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center; color: #FF4338"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; color: Red"><B>SUBJECT
TO COMPLETION, June 11, 2021</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; color: Red">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>PROSPECTUS
SUPPLEMENT </B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>SIGMA
LABS, INC.</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>88,911
Shares of Common Stock</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Issuable
Upon Exercise of Warrants</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"></FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 24.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">This
prospectus supplement relates to shares of our common stock issuable upon the exercise of our outstanding warrants to purchase an aggregate
of 88,911 shares of our common stock. The warrants were originally issued by us as follows: (a) warrants to purchase 46,887 shares of
Common stock that were issued on June 22, 2018 with an exercise price of $10.80 per share (the &ldquo;June 2018 Warrants&rdquo;); and
(b) warrants to purchase 42,024 shares of common stock that were issued on March 13, 2019 with an exercise price of $16.10 per share
(the &ldquo;March 2019 Warrants&rdquo;) (the June 2018 Warrants and the March 2019 Warrants are collectively referred to as the &ldquo;Warrants&rdquo;).
The Warrants expire five years after their respective issuance dates.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 24.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 24.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Our
common stock is traded on The NASDAQ Capital Market under the symbol &ldquo;SGLB.&rdquo; On June 7, 2021, the last reported sale price
of our common stock was $4.04 per share.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 24.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 24.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
may offer securities directly to investors or through agents, underwriters or dealers. If any agents, underwriters or dealers are involved
in the sale of any of our securities, their names and any applicable purchase prices, fees, commissions or discount arrangements will
be set forth in the prospectus supplement.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 24.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 24.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>An
investment in our shares involves a high degree of risk. Before purchasing any shares, you should consider carefully the risks described
under &ldquo;Risk Factors&rdquo; beginning on page B-6.</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 24.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 24.5pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"></FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 24.5pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>NEITHER
THE SECURITIES AND EXCHANGE COMMISSION NOR ANY STATE SECURITIES COMMISSION HAS APPROVED OR DISAPPROVED THESE SECURITIES OR DETERMINED
THAT THIS PROSPECTUS IS COMPLETE OR ACCURATE. ANY REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"></FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>The
date of this prospectus supplement is &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;, 2021</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>TABLE
OF CONTENTS</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Prospectus
Supplement</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom">
    <TD STYLE="padding-bottom: 1.5pt; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="border-bottom: Black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; width: 0.5in"><P STYLE="text-align: center; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Page
                                            </B></FONT></P></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="#a_18">ABOUT THIS PROSPECTUS SUPPLEMENT</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">B-1</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="#a_19">NOTE ON FORWARD-LOOKING STATEMENTS</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">B-2</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
        <TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><A HREF="#a_20">PROSPECTUS SUPPLEMENT SUMMARY</A></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">B-2</TD></TR>
<TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD></TR>
<TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="#a_21">RISK FACTORS</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">B-6</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="#a_22">USE OF PROCEEDS</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">B-8</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="#a_23">DILUTION</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">B-9</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="#a_24">DIVIDEND POLICY</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">B-9</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="#a_25">DESCRIPTION OF CAPITAL STOCK</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">B-10</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="#a_26">DESCRIPTION OF WARRANTS</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">B-12</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="#a_27">PLAN OF DISTRIBUTION</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">B-14</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="#a_28">WHERE YOU CAN FIND MORE INFORMATION</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">B-14</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="#a_29">INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">B-14</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="#a_30">LEGAL MATTERS</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">B-15</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="#a_31">EXPERTS</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">B-15</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Base
Prospectus</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%">
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left; vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="#a_1">ABOUT THIS PROSPECTUS</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">1</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left; vertical-align: bottom; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="#a_2">SIGMA LABS</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">2</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left; vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="#a_3">RISK FACTORS</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">5</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left; vertical-align: bottom; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="#a_4">CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTS</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">5</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left; vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="#a_5">USE OF PROCEEDS</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">5</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left; vertical-align: bottom; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="#a_6">FINANCIAL RATIOS</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">6</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left; vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="#a_7">THE SECURITIES THAT WE MAY OFFER</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">6</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left; vertical-align: bottom; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="#a_8">DESCRIPTION OF COMMON STOCK</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">6</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left; vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="#a_9">DESCRIPTION OF PREFERRED STOCK</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">8</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left; vertical-align: bottom; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="#a_10">DESCRIPTION OF DEBT SECURITIES</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">10</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left; vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="#a_11">DESCRIPTION OF WARRANTS</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">19</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left; vertical-align: bottom; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="#a_12">DESCRIPTION OF UNITS</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">20</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left; vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="#a_17">PLAN OF DISTRIBUTION</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">20</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left; vertical-align: bottom; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="#a_13">LEGAL MATTERS</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">22</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left; vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="#a_14">EXPERTS</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">22</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left; vertical-align: bottom; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="#a_15">WHERE YOU CAN FIND MORE INFORMATION</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">22</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left; vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="#a_16">INCORPORATION OF CERTAIN INFORMATION BY REFERENCE</A></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">23</FONT></TD></TR>
</TABLE>
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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><A NAME="a_18"></A>ABOUT
THIS PROSPECTUS SUPPLEMENT</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">In
this prospectus supplement, Sigma Labs, Inc. is referred to herein as &ldquo;Sigma,&rdquo; the &ldquo;Company,&rdquo; &ldquo;we,&rdquo;
&ldquo;us&rdquo; and &ldquo;our.&rdquo;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">This
prospectus supplement and the accompanying prospectus relate to the offering by us of shares of our common stock issuable upon the exercise
of Warrants previously issued in June 2018 and March 2019. We have an existing &ldquo;shelf&rdquo; Registration Statement on Form S-3,
File No. 333-225377, that was declared effective on June 14, 2021 and which expires on June 14, 2021 pursuant to Rule 415(a)(5) under
the Securities Act (the &ldquo;Prior Registration Statement&rdquo;). We are filing a new &ldquo;shelf&rdquo; Registration Statement on
Form S-3, File No. 333- , of which this prospectus supplement and the accompanying prospectus form a part (the &ldquo;New Registration
Statement&rdquo;). The common stock registered under the New Registration Statement includes shares of common stock underlying Warrants
to purchase an aggregate of 88,911 shares of common stock at exercise prices ranging from $10.80 to $16.10 per share, which Warrants
were previously issued by us and registered under the Prior Registration Statement. Pursuant to Rule 415(a)(6), the offering of the unsold
securities registered under the Prior Registration Statement will be deemed terminated as of the effective date of the New Registration
Statement. We are filing this prospectus supplement under the New Registration Statement for the sole purpose of ensuring that an effective
registration statement at all times covers the exercise of such previously issued Warrants.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Before
buying any shares of common stock underlying the Warrants, we urge you to carefully read this prospectus supplement and the accompanying
prospectus, together with the information incorporated herein by reference as described under the headings &ldquo;Where You Can Find
More Information&rdquo; and &ldquo;Incorporation of Documents by Reference.&rdquo; These documents contain important information that
you should consider when making your investment decision. This prospectus supplement contains information about the common stock underlying
the Warrants and may add, update or change information in the accompanying prospectus.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">You
should rely only on the information that we have provided or incorporated by reference in this prospectus supplement and the accompanying
prospectus. We have not authorized any other person to provide you with different information. If anyone provides you with different
or inconsistent information, you should not rely on it.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
are not making offers to sell or solicitations to buy our securities in any jurisdiction in which an offer or solicitation is not authorized
or in which the person making that offer or solicitation is not qualified to do so or to anyone to whom it is unlawful to make an offer
or solicitation. You should assume that the information in this prospectus supplement and the accompanying prospectus or any related
free writing prospectus is accurate only as of the date on the front of the document and that any information that we have incorporated
by reference is accurate only as of the date of the document incorporated by reference, regardless of the time of delivery of this prospectus
supplement, the accompanying prospectus or any related free writing prospectus, or any sale of a security.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">This
document is in two parts. The first part is this prospectus supplement, which adds to and updates information contained in the accompanying
prospectus. The second part, the prospectus, provides more general information, some of which may not apply to this offering. Generally,
when we refer to this prospectus, we are referring to both parts of this document combined. To the extent there is a conflict between
the information contained in this prospectus supplement and the information contained in the accompanying prospectus, you should rely
on the information in this prospectus supplement.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">This
prospectus supplement and the accompanying prospectus contain summaries of certain provisions contained in some of the documents described
herein, but reference is made to the actual documents for complete information. All of the summaries are qualified in their entirety
by the actual documents. Copies of some of the documents referred to herein have been or will be filed as exhibits to the registration
statement of which this prospectus is a part or as exhibits to documents incorporated by reference herein, and you may obtain copies
of those documents as described below under the headings &ldquo;Where You Can Find More Information&rdquo; and &ldquo;Incorporation of
Documents by Reference.&rdquo;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><A NAME="a_19"></A>NOTE
ON FORWARD-LOOKING STATEMENTS</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">This
prospectus supplement, the accompanying prospectus, the documents incorporated by reference into this prospectus supplement and the accompanying
prospectus and any free writing prospectus that we may authorize for use in connection with this offering contain forward-looking statements
within the meaning of Section 27A of the Securities Act and Section 21E of the Exchange Act. These statements relate to future events
or to our future financial performance and involve known and unknown risks, uncertainties and other factors that may cause our actual
results to be materially different from any future results expressed or implied by the forward-looking statements. In some cases, you
can identify forward-looking statements by the use of words such as &ldquo;believe,&rdquo; &ldquo;anticipate,&rdquo; &ldquo;intend,&rdquo;
&ldquo;plan,&rdquo; &ldquo;estimate,&rdquo; &ldquo;may,&rdquo; &ldquo;could,&rdquo; &ldquo;anticipate,&rdquo; &ldquo;predict,&rdquo;
or &ldquo;expect&rdquo; and similar expressions. You should not place undue reliance on forward-looking statements since they involve
known and unknown risks, uncertainties and other factors that are, in many cases, beyond our control. Forward-looking statements are
not guarantees of future performance. Actual events or results may differ materially from those discussed in the forward-looking statements
as a result of various factors. Except as required by applicable law, we do not undertake any obligation to publicly update any forward-looking
statements, whether as a result of new information, future developments or otherwise.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
will discuss certain of these risks and uncertainties in greater detail in any prospectus supplement under the heading &ldquo;Risk Factors.&rdquo;
Additional cautionary statements or discussions of risks and uncertainties that could affect our results or the achievement of the expectations
described in forward-looking statements may also be contained in the documents we incorporate by reference into this prospectus supplement,
including our most recent Annual Report on Form 10-K filed with the SEC and our Quarterly Reports on Form 10-Q filed subsequently with
the SEC.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><A NAME="a_20"></A>PROSPECTUS
SUPPLEMENT SUMMARY</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>This
summary highlights certain information about us, this offering and information appearing elsewhere in this prospectus supplement, in
the accompanying prospectus and in the documents we incorporate by reference. This summary is not complete and does not contain all of
the information that you should consider before investing in our securities. To fully understand this offering and its consequences to
you, you should read this entire prospectus supplement and the accompanying prospectus carefully, including the information referred
to under the heading &ldquo;Risk Factors&rdquo; in this prospectus supplement beginning on page B-6, the financial statements and other
information incorporated by reference in this prospectus supplement and the accompanying prospectus when making an investment decision.
This is only a summary and may not contain all the information that is important to you. You should carefully read both this prospectus
supplement and any accompanying prospectus and any other offering materials, together with the additional information described under
the heading &ldquo;Where You Can Find More Information.&rdquo; </I></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Company
Overview</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Sigma
is an 11-year-old software company that was founded by scientist-engineers composed of physicists and metallurgists then working at Los
Alamos National Labs for the entrepreneurial purpose of developing sophisticated metallurgical products. Since 2016, the Company&rsquo;s
focus has been on solving the complex and challenging problem of how to best assure the high quality of metal parts manufactured in laser
powder bed additive manufacturing machines. Sigma and many others believe that until this problem was solved, 3D manufacturing of metal
parts would not be scalable enough to grow past prototyping and mature into a major industry enjoying high quality yields and cost-efficient
production runs. The solution that Sigma developed to solve this problem is In-Process-Quality-Assurance (&ldquo;IPQA&reg;&rdquo;) software
known as PrintRite3D&reg;.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">In
2018, the Sigma team enhanced and added user features to its PrintRite3D&reg; technology. In 2019, the Company began to productize and
test PrintRite3D&reg; on various 3D metal printers at customers&rsquo; sites through the Company&rsquo;s Rapid Test and Evaluation (&ldquo;RTE&rdquo;)
program. Upon receiving favorable responses from the various RTEs, in 2020 the Company began to aggressively market PrintRite3D&reg;.
However, the worldwide COVID-19 pandemic caused a reduction, and in some cases a freeze, in capital spending within the Company&rsquo;s
targeted industries and had what the Company believes to be a short-term negative impact on the Company&rsquo;s expected timing of generating
meaningful revenue. Despite the pandemic, the Company moved forward with its plan to market PrintRite3D&reg; to the following industry
segments: (1) global manufacturing companies with Additive Manufacturing (&ldquo;AM&rdquo;) initiatives; (2) 3D printer Original Equipment
Manufacturers (&ldquo;OEMs&rdquo;) for purchases of licenses and generating fees and royalties thereafter; (3) additive manufacturing
software venders for alliances and licenses for co-sales; and (4) research foundations, standards organizations and universities, all
in service of Sigma&rsquo;s potential for setting the industry standard of measurement by providing data and analytics as a metrics-based
quality standard of metal quality for all 3D laser powder bed manufactured parts, notwithstanding the design, metal, or brand of equipment
upon which parts are manufactured.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Additive
Metal Manufacturing and the role and need for Sigma&rsquo;s technology:</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Additive
Manufacturing, or 3D printing, has been among the most heavily explored manufacturing innovations in the history of modern manufacturing.
The use of 3D printing technology dates back to the 1980s for polymer applications, but the ability to print functional parts from metal
alloys has spurred significant interest and investment into AM over recent years. AM is now reshaping the product design process, entire
supply chains, and the vast landscape of manufacturing. Engineers are embracing new design freedoms to realize valuable product performance
improvements and cost efficiencies with lighter weight, better thermal management capability, better fluid mixing, customization, and/or
the ability to make different structures and textures that yield better part integration.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Several
significant hurdles still prevent the wider adoption of additive technologies. The lack of quality, consistency and standards are most
often cited. The Company believes that the lack of technology such as PrintRite3D&reg;, could be the last sizable barrier to the widespread
industrialization of 3D metal printing. Additionally, many believe that the disruption to complex and rigid supply chains caused by COVID-19
exposed the country&rsquo;s vulnerability to shortages in times of crisis. It appears that many manufacturers are devising strategies
to be able to be more agile, increase their ability to manufacture mission critical parts on demand, with more customization, and closer
to where the end part will be needed.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0.5in; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
anticipate that the enterprise adoption of the technology will accelerate in 2021, evolving over time as follows:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.25in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.25in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Stage
    1 &ndash; International research &amp; development organizations and universities will establish centers of excellence for Advanced
    Manufacturing and be a major resource for enterprises seeking to adopt best practices for AM.</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Stage
    2 - Enterprises will start with their own R&amp;D initiatives and select a 3D printer vendor, or vendors, that meets their requirements.
    During this time, they will focus on experimenting with different metal powder alloys, part structures, design guidelines, and in-process
    quality metrics.</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Stage
    3 &ndash; Once R&amp;D is complete, enterprises will select one part to test and move into production, improving the process from
    design to production and confirming the economics and quality of the process.</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Stage
    4 &ndash; International standards will be established by organizations such as NIST, ISO, ATSM, etc., ensuring the consistency of
    components and processes. These standards will become increasingly important as the industry moves to full industrialization.</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Stage
    5 &ndash; As the adoption of AM accelerates, enterprises will utilize multiple 3D printers from multiple manufacturers due to printer
    innovations and advancements, varying production requirements, divisional preferences, etc.</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Stage
    6 &ndash; Independent standards-based, IPQA systems, such as PrintRite3D&reg;, will be required to assure consistent quality in heterogeneous
    factories.</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>PrintRite3D&reg;
Technology and Product Family</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">PrintRite3D&reg;
is an interactive in-process quality assurance system that combines inspection, feedback, data collection and critical analysis. It is
a platform-independent solution that can be installed as a retrofit to an existing 3D printer or requested as a factory option from select
3D printer OEMs. PrintRite3D&reg; provides a high-fidelity, accurate system that can confidently scale to multi-laser 3D metal printers.
The PrintRite3D&reg; system discovers potential anomalies and incorporates machine learning in conjunction with developed metrics to
map those metrics to the post-process data. This provides the ability to reduce post-production testing and costs, while creating a certification
framework that serves the needs of end-users, printer manufacturers, and standards organizations.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company currently offers three versions of PrintRite3D&reg; for Laser Bed Fusion Systems: (1) PrintRite3D&reg; Lite which has a smaller
footprint and is geared towards single-laser machines for Research and Development, or small production lots. (2) PrintRite3D&reg; Pro,
for single, dual and quad laser machines and is suited well for environments with less than 10 machines, and (3) PrintRite3D&reg; Enterprise
for plant-wide networks. PrintRite3D&reg; Lite expands the Company&rsquo;s addressable market to mid-range 3D printer manufacturers for
potential OEM opportunities.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company announced in late 2020 PrintRite3D&reg; for Direct Energy Deposition (&ldquo;DED&rdquo;), opening up another segment of the market
for Sigma to sell and distribute its technology. DED is based on a laser process in which a laser beam generates a melt pool on a substrate.
An additional metallic powder material is transported to the melt pool, where it becomes molten. Due to a feed movement, the molten material
cools down and welding tracks are formed. By placing weld tracks side-by-side and on top of one another, a build-up is obtained. Three-dimensional
structures can then be generated by depositing one layer or track at the top of another previously welded layer or track.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Distribution
Methods</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Sigma
Labs employs a multi-channel distribution model for its IPQA products including a direct sales force, value added resellers (VARs) and
3D printer Original Equipment Manufacturers (OEMs). In 2020, the majority of the Company&rsquo;s revenue was generated by direct sales
in North America and Europe. VARs are currently used in Japan and India. The Company plans to extend its VAR channel outside of North
America and Europe. In 2020 the Company moved aggressively to establish and extend relationships with 3D printer OEMs and expects that
the percentage of the Company&rsquo;s revenue coming from OEMs will increase in 2021 and beyond.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company markets its products through webinars, email and social media campaigns, and participation, both in person and virtually, in
industry events and tradeshows. In addition, the Company collaborates with international standards organizations in the establishment
of standards for AM.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Sources
and Availability of Parts and Materials</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
have important relationships with several suppliers for critical components of our PrintRite3D&reg; systems, in particular optics and
data acquisition components, and development of our user interface. To-date, we have not experienced shortages of components, however,
in some cases COVID-19 has resulted in increased lead times for certain parts. We manage the risk of component shortages by sourcing
backup suppliers, and in the case of our user interface, hiring engineers in-house to support the ongoing development and maintenance.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Agreements
with Original Equipment Manufacturers (&ldquo;OEMs&rdquo;)</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company entered into distribution agreements with two international 3D printer OEMs. The Company supports the OEMs with joint marketing
programs and field sales and technical support personnel to assist in the sale of its technology. It is the Company&rsquo;s intent to
continue to build the OEM channel through distribution relationships with other 3D printer OEMs in the future.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Competition
and Sigma&rsquo;s Intellectual Property Safeguards</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">PrintRite3D&reg;
is a third-party, agnostic In-Process Quality Assurance system designed to provide a consistent, standards-based measurement and prediction
of quality across a heterogeneous collection of 3D printers. Competition is primarily from the printer OEMs who offer their own monitoring
system, usually as a separately priced option to its printers. Sigma believes that the future of AM will consist of factories with various
generations of printers from various manufacturers. The primary reasons that global manufacturers will have machines from various vendors
is that certain machines and technologies are better suited for different applications than others. Additionally, as the industry progresses,
innovation will accelerate, and new leaders will emerge. Finally, many believe that there will be a consolidation of 3D metal manufacturers
and the number of vendors will decrease from approximately 50 to a much small number over the next decade. Although standards for monitoring
are slowly being set by various international standards organizations, it is highly unlikely that printer OEMs will modify their monitoring
systems to work with other OEMs machines. Therefore, we believe that the only way to produce parts with a consistent level of quality
is with a third-party, agnostic, standards based IPQA system, such as PrintRite3D&reg;. To the Company&rsquo;s knowledge, there is no
competitor currently offering an IPQA system with similar functionality which has been validated to operate across as many 3D metal printers
as PrintRite3D&reg;.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Sigma
began its investigation and research into optical and thermal data collection and measurement for quality assurance and intervention
approximately 7 years ago and began to develop its intellectual property protection at that time. The international IP law firm, Kilpatrick
Townsend, has advised the Company on building a patent portfolio, trade secrets, trademarks, etc. and filed and prosecuted patents as
the Company has grown its body of intellectual property.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" ALIGN="CENTER" STYLE="border-collapse: collapse; width: 60%; font: 10pt Times New Roman, Times, Serif">
  <TR STYLE="vertical-align: bottom">
    <TD COLSPAN="13" STYLE="font-weight: bold; font-style: italic; text-align: center; border-bottom: Black 1.5pt solid">Sigma Labs, Inc. Patent Portfolio</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD STYLE="font-weight: bold; text-align: center; border-bottom: Black 1.5pt solid">Jurisdiction</TD><TD STYLE="font-weight: bold; padding-bottom: 1.5pt">&nbsp;</TD>
    <TD COLSPAN="3" STYLE="font-weight: bold; text-align: center; border-bottom: Black 1.5pt solid">Granted</TD><TD STYLE="font-weight: bold; padding-bottom: 1.5pt">&nbsp;</TD>
    <TD COLSPAN="3" STYLE="font-weight: bold; text-align: center; border-bottom: Black 1.5pt solid">In Process</TD><TD STYLE="font-weight: bold; padding-bottom: 1.5pt">&nbsp;</TD>
    <TD COLSPAN="3" STYLE="font-weight: bold; text-align: center; border-bottom: Black 1.5pt solid">Total</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="width: 40%; text-align: center">US</TD><TD STYLE="width: 2%">&nbsp;</TD>
    <TD STYLE="width: 1%; text-align: left">&nbsp;</TD><TD STYLE="width: 16%; text-align: center">13</TD><TD STYLE="width: 1%; text-align: center">&nbsp;</TD><TD STYLE="text-align: center; width: 2%">&nbsp;</TD>
    <TD STYLE="width: 1%; text-align: center">&nbsp;</TD><TD STYLE="width: 17%; text-align: center">14</TD><TD STYLE="width: 1%; text-align: center">&nbsp;</TD><TD STYLE="text-align: center; width: 2%">&nbsp;</TD>
    <TD STYLE="width: 1%; text-align: center">&nbsp;</TD><TD STYLE="width: 15%; text-align: center">27</TD><TD STYLE="width: 1%; text-align: center">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: center">PCT</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: center">-</TD><TD STYLE="text-align: center">&nbsp;</TD><TD STYLE="text-align: center">&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD><TD STYLE="text-align: center">1</TD><TD STYLE="text-align: center">&nbsp;</TD><TD STYLE="text-align: center">&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD><TD STYLE="text-align: center">1</TD><TD STYLE="text-align: center">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: center">EP</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: center">-</TD><TD STYLE="text-align: center">&nbsp;</TD><TD STYLE="text-align: center">&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD><TD STYLE="text-align: center">4</TD><TD STYLE="text-align: center">&nbsp;</TD><TD STYLE="text-align: center">&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD><TD STYLE="text-align: center">4</TD><TD STYLE="text-align: center">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: center">Germany</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: center">-</TD><TD STYLE="text-align: center">&nbsp;</TD><TD STYLE="text-align: center">&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD><TD STYLE="text-align: center">6</TD><TD STYLE="text-align: center">&nbsp;</TD><TD STYLE="text-align: center">&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD><TD STYLE="text-align: center">6</TD><TD STYLE="text-align: center">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: center">China</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: center">1</TD><TD STYLE="text-align: center">&nbsp;</TD><TD STYLE="text-align: center">&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD><TD STYLE="text-align: center">3</TD><TD STYLE="text-align: center">&nbsp;</TD><TD STYLE="text-align: center">&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD><TD STYLE="text-align: center">4</TD><TD STYLE="text-align: center">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: center">Japan</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: center">-</TD><TD STYLE="text-align: center">&nbsp;</TD><TD STYLE="text-align: center">&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD><TD STYLE="text-align: center">1</TD><TD STYLE="text-align: center">&nbsp;</TD><TD STYLE="text-align: center">&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD><TD STYLE="text-align: center">1</TD><TD STYLE="text-align: center">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: center; padding-bottom: 1.5pt">Korea</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1.5pt solid; text-align: left">&nbsp;</TD><TD STYLE="border-bottom: Black 1.5pt solid; text-align: center">-</TD><TD STYLE="padding-bottom: 1.5pt; text-align: center">&nbsp;</TD><TD STYLE="text-align: center; padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1.5pt solid; text-align: center">&nbsp;</TD><TD STYLE="border-bottom: Black 1.5pt solid; text-align: center">1</TD><TD STYLE="padding-bottom: 1.5pt; text-align: center">&nbsp;</TD><TD STYLE="text-align: center; padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1.5pt solid; text-align: center">&nbsp;</TD><TD STYLE="border-bottom: Black 1.5pt solid; text-align: center">1</TD><TD STYLE="padding-bottom: 1.5pt; text-align: center">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="font-weight: bold; text-align: center; padding-bottom: 2.5pt">Total</TD><TD STYLE="font-weight: bold; padding-bottom: 2.5pt">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 2.5pt double; font-weight: bold; text-align: left">&nbsp;</TD><TD STYLE="border-bottom: Black 2.5pt double; font-weight: bold; text-align: center">14</TD><TD STYLE="padding-bottom: 2.5pt; font-weight: bold; text-align: center">&nbsp;</TD><TD STYLE="text-align: center; font-weight: bold; padding-bottom: 2.5pt">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 2.5pt double; font-weight: bold; text-align: center">&nbsp;</TD><TD STYLE="border-bottom: Black 2.5pt double; font-weight: bold; text-align: center">30</TD><TD STYLE="padding-bottom: 2.5pt; font-weight: bold; text-align: center">&nbsp;</TD><TD STYLE="text-align: center; font-weight: bold; padding-bottom: 2.5pt">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 2.5pt double; font-weight: bold; text-align: center">&nbsp;</TD><TD STYLE="border-bottom: Black 2.5pt double; font-weight: bold; text-align: center">44</TD><TD STYLE="padding-bottom: 2.5pt; font-weight: bold; text-align: center">&nbsp;</TD></TR>
  </TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Based
upon the evidence of competitors&rsquo; claims received by Sigma to-date, it appears to us that Sigma&rsquo;s solution to the quality
problems of 3D metal printing is a significantly different technological approach than that of our principal known competition. It continues
to appear to the Company that the intellectual property protection of PrintRite3D&reg;&rsquo;s acuity, meaningful metrics of thermal
data correlated to part quality, and usability of its software accord Sigma freedom to operate with its technology and will be a significant
barrier to entry to competitors attempts to pursue the technology path traveled by Sigma.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0.1in; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Our
principal executive offices are located at 3900 Paseo del Sol, Santa Fe, New Mexico 87507, and our telephone number is (505) 438-2576.
Our website address is www.sigmalabsinc.com, although the information on our website is not deemed to be part of this prospectus.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0.1in; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>The
Offering</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 24.5pt; background-color: white"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
June 2018 warrants were sold and issued in our public offering completed on June 26, 2018, and the March 2019 warrants were sold and
issued in our public offering completed on March 15, 2019. See the &ldquo;Plan of Distribution&rdquo; section in this prospectus supplement
for more information regarding this offering.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 24.5pt; background-color: white"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; width: 25%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Issuer</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; width: 2%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: justify; font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; width: 73%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Sigma Labs, Inc.</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: justify; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Shares
    offered by us</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: justify; font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">88,911 shares of our
    common stock issuable upon exercise of Warrants previously issued. The June 2018 Warrants have an exercise price of $10.80 and the
    March 2019 Warrants have an exercise price of $16.10. The Warrants have been exercisable since the dates of issuance, and will expire
    five years from the dates of issuance.</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: justify; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Shares
    outstanding</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: justify; font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">10,493,598<SUP>(1)</SUP></FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: justify; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Shares
    outstanding following this offering if all Warrants are exercised</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: justify; font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">10,582,509 shares assuming
    all Warrants are exercised in full and without giving effect to any other issuances of common stock subsequent to May 31, 2021</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: justify; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Use
    of proceeds</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: justify; font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We intend to use the
    net proceeds of any exercises of the Warrants pursuant to this offering to augment our working capital and for general corporate
    purposes</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: justify; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Trading</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: justify; font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Our common stock is
    traded on The NASDAQ Capital Market under the symbol &ldquo;SGLB&rdquo;</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.25in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.25in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(1)</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">As
                                            of May 31, 2021, and does not include (i) a total of 854,747 shares of common stock issuable
                                            upon the exercise of outstanding options (having a weighted-average exercise price of $4.83
                                            per share); (ii) a total of 3,987,931 shares of common stock issuable upon the exercise of
                                            outstanding warrants (having a weighted average exercise price of $6.10 per share); (iii)
                                            a total of 62,832 shares of common stock issuable upon conversion of all of the shares of
                                            the Company&rsquo;s Series D Preferred Stock based on a conversion price of $2.50; (iv) a
                                            total of 61,651 shares issuable upon the conversion of all of the shares of the Company&rsquo;s
                                            Series E Convertible Preferred Stock (the &ldquo;Series E Preferred Shares&rdquo;), based
                                            on a conversion price of $10.30; (v) 14,568 shares of our common stock issuable upon exercise
                                            of Unit Purchase Options to acquire up to 11,206 units, at an exercise price of $17.50 per
                                            unit, consisting of 11,206 shares of common stock, and warrants to purchase up to 3,362 shares
                                            of common stock at an exercise price of $16.10; and (vi) 11,016 shares of our common stock
                                            reserved for issuance in connection with future awards under our 2013 equity incentive plan.</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><A NAME="a_21"></A>RISK
FACTORS</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 24.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>Investing
in our common stock involves significant risks. Prior to making a decision about investing in our common stock, you should carefully
consider the risk factors incorporated by reference to our most recent Annual Report on Form 10-K and Quarterly Report on Form 10-Q,
and any subsequent Quarterly Reports on Form 10-Q or Current Reports on Form 8-K we file after the date of this prospectus, as well as
the factors discussed below</I>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 24.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Risks
Associated With Our Common Stock</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>You
may experience future dilution as a result of future equity offerings or other equity issuances.</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 24.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">To
raise additional capital, we may in the future offer additional shares of our common stock, preferred stock or other securities convertible
into or exchangeable for our common stock. We cannot assure you that we will be able to sell shares or other securities in any other
offering at a price per share that is equal to or greater than the price per share that you may pay for the shares of our common stock
offered hereby. The price per share at which we sell additional shares of our common stock or other securities convertible into or exchangeable
for our common stock in future transactions may be higher or lower than the price per share that you may pay for the shares of our common
stock offered hereby.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 24.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>&nbsp;</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>We
may experience volatility in our stock price, which may adversely affect the trading price of our common stock.</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 24.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
market price of our common stock has ranged from a low of $1.95 per share to a high of $9.75 per share during the 52 weeks ending May
31, 2021, and it may continue to experience significant volatility from time to time. Factors that may affect the market price of our
common stock include the following:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">delays or failures in the
    commercialization of our current or future products and services;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">quarterly variations in
    our results of operations or those of our competitors;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">changes in our earnings
    estimates or recommendations by securities analysts or adverse publicity about us or our products or services;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">announcements by us or
    our competitors of new products and services, significant contracts, commercial relationships, acquisitions or capital commitments;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">adverse developments with
    respect to our intellectual property rights;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">commencement of litigation
    involving us or our competitors;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">any major changes in our
    board of directors or management;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">market conditions in our
    industry; and</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">general economic conditions
    in the United States and abroad.</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>Our
outstanding options and warrants and the availability for resale of the underlying shares may adversely affect the trading price of our
common stock.</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 24.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">As
of May 31, 2021, we had outstanding derivative securities which, if exercised or converted, could result in the issuance of up to 4,981,726
shares of our common stock. These derivative securities or any other derivative securities that we may grant or issue in the future could
adversely affect our ability to obtain future financing or engage in certain mergers or other transactions, since the holders of such
securities can be expected to exercise or convert them at a time when we may be able to obtain additional capital through a new offering
of securities on terms more favorable to us than the terms of outstanding derivative securities. The issuance of shares upon the exercise
or conversion of outstanding derivative securities will also dilute the ownership interests of our existing security holders.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 24.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>Our
anti-takeover measures may make it more difficult to change our management, or may discourage others from acquiring us, and thereby adversely
affect stockholder value.</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">As
discussed below, under &ldquo;DESCRIPTION OF CAPITAL STOCK &ndash; Anti-Takeover Effects of Certain Provisions of Our Charter Documents,&rdquo;
our Articles of Incorporation and Bylaws have provisions that could delay or prevent changes to control or changes in our management
without the consent of our Board of Directors. These provisions could inhibit or prevent possible transactions that some stockholders
may consider attractive.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>We
may issue preferred stock in the future, and the terms of the preferred stock may reduce the value of our common stock.</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 24.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
are authorized to issue shares of preferred stock in one or more series. Our board of directors may determine the terms of future preferred
stock offerings without further action by our security holders. If we issue preferred stock, it could affect your rights or reduce the
value of our outstanding common stock. In particular, specific rights granted to future holders of preferred stock may include voting
rights, preferences as to dividends and liquidation, conversion and redemption rights, sinking fund provisions, and restrictions on our
ability to merge with or sell our assets to a third party.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 24.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>&nbsp;</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>We
do not expect to pay any cash dividends on our common stock.</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 24.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
have never declared or paid any cash dividends on our common stock, and we do not intend to pay any cash dividends in the foreseeable
future. Because we do not anticipate paying cash dividends for the foreseeable future, our holders of common stock will not realize a
return on their investment in our common stock except to the extent of any appreciation in the value of our common stock. Our common
stock may not appreciate in value, or may decline in value.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 24.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Risks
Associated With This Offering</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>You
will experience immediate and substantial dilution in the net tangible book value per share of the stock you purchase.</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 24.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">If
the exercise price per share of the Warrants is higher than the net tangible book value per share of our common stock when you exercise
your Warrants, you will suffer immediate dilution in the net tangible book value of the common stock you acquire on exercise. See &ldquo;Dilution&rdquo;
in this prospectus for a more detailed discussion of the dilution you may incur if you exercise your Warrants.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 24.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>Our
management will have broad discretion as to the use of the proceeds of this offering.</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 24.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
have not designated the amount of net proceeds from this offering to be used for any particular purpose. Accordingly, our management
will have broad discretion as to the application of the net proceeds and could use them for purposes other than those contemplated at
the time of this offering. Our stockholders may not benefit from the manner in which our management chooses to allocate and spend the
net proceeds.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 24.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>You
may not be able to resell your warrants.</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 24.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">There
is no established trading market for the Warrants, and we do not expect such a market to develop. In addition, we do not intend to apply
for listing of the Warrants on any securities exchange or other nationally recognized trading system, and you may not be able to resell
your Warrants. If your Warrants cannot be resold, you will have to depend upon any appreciation in the value of our common stock over
the exercise price of the warrants in order to realize a return on your investment in the Warrants.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 24.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>Investors
will have no rights as a common stockholder with respect to their warrants until they exercise their warrants and acquire our common
stock.</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 24.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Until
you acquire shares of our common stock upon exercise of your Warrants, you will have no rights with respect to the shares of our common
stock underlying your Warrants except as set forth in the Warrants. Upon exercise of your Warrants, you will be entitled to exercise
the rights of a common stockholder only as to matters for which the record date occurs after the exercise date.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 24.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>You
may experience future dilution as a result of future equity offerings or other equity issuances.</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 24.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">To
raise additional capital, we may in the future offer additional shares of our common stock, preferred stock or other securities convertible
into or exchangeable for our common stock. We cannot assure you that we will be able to sell shares or other securities in any other
offering at a price per share that is equal to or greater than the exercise price per share paid in connection with any exercise of your
Warrants. The price per share at which we sell additional shares of our common stock or other securities convertible into or exchangeable
for our common stock in future transactions may be higher or lower than the exercise price per share of the Warrants.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 24.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><A NAME="a_22"></A>USE
OF PROCEEDS</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 24.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
do not know whether any of the Warrants will be exercised or, if any of the Warrants are exercised, when they will be exercised or at
what price they will be exercised. It is possible that the Warrants may expire and never be exercised, or that the current exercise price
of the Warrants may be reduced as a result of subsequent events that would trigger applicable adjustments under the Warrants. Also, as
discussed in the &ldquo;Description of Securities &mdash;Warrants&rdquo; section of this prospectus, there are certain circumstances
under which the Warrants may be exercised on a cashless basis. In these circumstances, even if the Warrants are exercised, we may not
receive any proceeds, or the proceeds that we do receive may be significantly less than what we might expect. We estimate that the maximum
net proceeds that we may receive from the exercise of the Warrants, assuming the exercise, in full, of the Warrants will be approximately
$1,182,966.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 24.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 24.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
currently intend to use the net proceeds from the exercise of the Warrants, if any, to augment our working capital and for general corporate
purposes.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 24.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 24.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
amounts and timing of our use of proceeds will vary depending on a number of factors, including the amount of cash used by our operations,
and we will retain broad discretion in the allocation of the net proceeds from the exercise of the Warrants. In addition, while we have
not entered into any agreements, commitments or understandings relating to any significant transaction as of the date of this prospectus,
we may use a portion of the net proceeds to pursue acquisitions, joint ventures and other strategic transactions.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 24.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><A NAME="a_23"></A>DILUTION</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 24.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Our
net tangible book value as of March 31, 2021 was approximately $1.21 per share of common stock. Net tangible book value per share is
calculated by subtracting our total liabilities from our total tangible assets, which is total assets less intangible assets, and dividing
this amount by the number of shares of common stock outstanding. After giving effect to the issuance of shares of our common stock upon
the exercise, in full, of the June 2018 Warrants with a current exercise price of $10.80 per share and of the March 2019 warrants with
a current exercise price of $16.10 per share, and before deducting estimated offering expenses payable by us, we would have had a net
tangible book value as of March 31, 2021 of $13,840,330, or $1.31 per share of common stock. This represents an immediate increase in
the net tangible book value of $0.10 per share to our existing stockholders and an immediate dilution in net tangible book value of $12.00
per share to purchasers of shares of our common stock in this offering. The following table illustrates this per share dilution:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" ALIGN="CENTER" STYLE="font: 10pt Times New Roman, Times, Serif; width: 80%; border-collapse: collapse">
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; background-color: #CCEEFF">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 61%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Weighted average exercise price
    per share</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 2%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="border-bottom: black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; width: 1%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">$</FONT></TD>
    <TD STYLE="border-bottom: black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; width: 16%; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">13.31</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 1%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 2%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 1%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 16%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; background-color: white">
    <TD STYLE="padding-left: 10pt; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Net tangible book value
    per share as of March 31, 2021</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">$</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">1.21</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; background-color: #CCEEFF">
    <TD STYLE="padding-left: 10pt; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Increase
    per share attributable to this offering</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="border-bottom: black 1.5pt solid; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">$</FONT></TD>
    <TD STYLE="border-bottom: black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">0.10</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; background-color: white">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; background-color: #CCEEFF">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">As adjusted net tangible
    book per share after this offering</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="border-bottom: black 2.25pt double; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">$</FONT></TD>
    <TD STYLE="border-bottom: black 2.25pt double; font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">1.31
    </FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; background-color: white">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; background-color: #CCEEFF">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Net dilution per share
    to investors</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="border-bottom: black 2.25pt double; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">$</FONT></TD>
    <TD STYLE="border-bottom: black 2.25pt double; font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">12.00
    </FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 24.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 24.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
number of shares of common stock shown above to be outstanding after this offering is based on 10,493,598 shares outstanding as of May
31, 2021 and excludes (i) a total of 854,747 shares of common stock issuable upon the exercise of outstanding options (having a weighted-average
exercise price of $4.83 per share); (ii) a total of 3,987,931 shares of common stock issuable upon the exercise of outstanding warrants
(having a weighted average exercise price of $6.10), (iii) a total of 62,832 shares of common stock issuable upon conversion of all of
the shares of the Company&rsquo;s Series D Preferred Stock based on a conversion price of $2.50; (iv) a total of 61,651 shares issuable
upon the conversion of all of the shares of the Company&rsquo;s Series E Convertible Preferred Stock (the &ldquo;Series E Preferred Shares&rdquo;),
based on a conversion price of $10.30; (v) 14,568 shares of our common stock issuable upon exercise of Unit Purchase Options to acquire
up to 11,206 units, at an exercise price of $17.50 per unit, consisting of 11,206 shares of common stock, and warrants to purchase up
to 3,362 shares of common stock at an exercise price of $16.10, and (vi) 11,016 shares of our common stock reserved for issuance in connection
with future awards under our 2013 equity incentive plan.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 24.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 24.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">To
the extent our outstanding options and warrants are exercised, you may experience further dilution. The above illustration of dilution
per share to investors participating in this offering assumes no exercise of outstanding options or outstanding warrants to purchase
shares of our common stock other than the Warrants. The exercise of outstanding options and warrants having an exercise price less than
the exercise price of the Warrants will further increase dilution to investors in this offering.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 24.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><A NAME="a_24"></A>DIVIDEND
POLICY</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 24.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
have never declared or paid cash dividends on our common stock, and do not anticipate paying cash dividends in the foreseeable future.
Payment of future dividends, if any, will be at the discretion of our board of directors after taking into account various factors, including
our financial condition, operating results, and current and anticipated cash needs.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 24.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><A NAME="a_25"></A>DESCRIPTION
OF CAPITAL STOCK</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 24.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
following summary of certain provisions of our common and preferred stock does not purport to be complete. You should refer to our amended
and restated articles of incorporation and our restated by-laws, which are filed with or incorporated by reference in the registration
statement relating to this offering filed by us with the SEC. The summary below is also qualified by reference to the provisions of applicable
Nevada corporation law.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 24.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Authorized
Capital Stock</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
are presently authorized to issue 24,000,000 shares of common stock, $0.001 par value per share, of which 10,493,598 shares were outstanding
as of May 31, 2021. We are presently authorized to issue 10,000,000 shares of $0.001 par value preferred stock, of which 1,610,000 shares
have been designated &ldquo;Series A Preferred Stock,&rdquo; 1,000 shares have been designated &ldquo;Series B Convertible Preferred
Stock,&rdquo; 1,500 shares have been designated &ldquo;Series C Convertible Preferred Stock,&rdquo; 7,796 shares have been designated
as &ldquo;Series D Convertible Stock&rdquo; and 500 shares have been designated as &ldquo;Series E Convertible Stock.&rdquo; As of the
date hereof, we had no shares of Series A Preferred Stock, Series B Convertible Preferred Stock, Series C Convertible Stock and 132 Series
D Convertible Preferred Stock issued and outstanding, and 333.33 shares of Series E Convertible Preferred Stock is issued and outstanding.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Common
Stock</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
have one class of common stock. Holders of our common stock are entitled to one vote per share on all matters to be voted upon by stockholders
and do not have cumulative voting rights in the election of directors. Holders of shares of common stock are entitled to receive on a
pro rata basis such dividends, if any, as may be declared from time to time by our board of directors in its discretion from funds legally
available for that use, subject to any preferential dividend rights of outstanding preferred stock. They are also entitled to share on
a pro rata basis in any distribution to our common stockholders upon our liquidation, dissolution or winding up, subject to the prior
rights of any outstanding preferred stock. Common stockholders do not have pre-emptive rights to subscribe to any additional stock issuances
by us, and they do not have the right to require the redemption of their shares or the conversion of their shares into any other class
of our stock. The rights, preferences and privileges of holders of common stock are subject to, and may be adversely affected by, the
rights of the holders of any series of preferred stock that we may designate and issue in the future.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Preferred
Stock</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Under
our articles of incorporation, our board of directors has the authority, without further action by stockholders, to designate one or
more series of preferred stock and to fix the voting powers, designations, preferences, limitations, restrictions and relative rights
granted to or imposed upon the preferred stock, including dividend rights, conversion rights, voting rights, rights and terms of redemption,
liquidation preference and sinking fund terms, any or all of which may be preferential to or greater than the rights of the common stock.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Our
board of directors may authorize the issuance of preferred stock with voting or conversion rights that could adversely affect the voting
power or other rights of the holders of the common stock. The issuance of preferred stock, while providing flexibility in connection
with possible acquisitions and other corporate purposes, could, among other things, have the effect of delaying, deferring or preventing
a change in our control and may adversely affect the market price of the common stock and the voting and other rights of the holders
of common stock.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">In
connection with our underwritten public offering of equity securities on February 21, 2017, we created a series of Preferred Stock called
&ldquo;Series A Preferred Stock.&rdquo; None of such shares were issued in such offering. In our April 6, 2018 private placement, we
issued 1,000 shares of Series B Preferred Stock (&ldquo;Series B Preferred&rdquo;), which were convertible into 100,000 shares of common
stock. All shares of our Series B Preferred have been converted. In our June 26, 2018 public offering of equity securities, we issued
350 shares of Series C Preferred Stock which were initially convertible into 35,000 shares of common stock. Accordingly, as of the date
of this prospectus, all shares of such preferred stock have been fully converted. In connection with the private placements occurring
on January 27, 2020, we created two new series of Preferred Stock: the Series D Preferred Stock and the Series E Preferred Stock. As
of the date hereof, no shares of Series D Preferred Stock and 333.33 shares of Series E Preferred Stock are issued and outstanding.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Under
the Certificate of Designations for the Series D Preferred Stock, the Series D Preferred Stock has an initial stated value of $1,000
per share (the &ldquo;Stated Value&rdquo;). Dividends accrue at a dividend rate of 9% per annum (subject to increase upon the occurrence
(and during the continuance) of certain triggering events described therein) will accrue and, on a monthly basis, shall be payable in
kind by the increase of the Stated Value of the Series D Preferred Shares by said amount. The holders of the Series D Preferred Shares
will have the right at any time to convert all or a portion of the Series D Preferred Shares (including, without limitation, accrued
and unpaid dividends and make-whole dividends through the third anniversary of the closing date) into shares of the Company&rsquo;s Common
Stock at the conversion price then in effect, which is $2.50 (subject to adjustment for stock splits, dividends, recapitalizations and
similar events and full ratchet price protection). In addition, a holder may at any time, alternatively, convert all, or any part, of
its Series D Preferred Shares at an alternative conversion price, which equals the lower of the applicable conversion price then in effect,
and the greater of (x) $1.80 and (y) 85% of the average volume weighted average price (&ldquo;VWAP&rdquo;) of the Common Stock for a
five (5) trading day period prior to such conversion. Upon the occurrence of certain triggering events, described in the Certificate
of Designations, including, but not limited to payment defaults, breaches of transaction documents, failure to maintain listing on the
Nasdaq Capital Market, and other defaults set forth therein, the Series D Preferred Shares would become subject to redemption, at the
option of a holder, at a 125% premium to the underlying value of the Series D Preferred Shares being redeemed.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Under
the Certificate of Designations for the Series E Preferred Stock, the Series E Preferred Shares have an initial stated value of $1,500
per share (the &ldquo;Stated Value&rdquo;). Dividends at the initial rate of 9% per annum will accrue and, on a monthly basis, shall
be payable in kind by the increase of the Stated Value of the Series E Preferred Stock by said amount. The holders of the Series E Preferred
Shares have the right at any time to convert all or a portion of the Preferred Shares (including, without limitation, accrued and unpaid
dividends and make-whole dividends through the third anniversary of the closing date) into shares of the Company&rsquo;s Common Stock
at an initial conversion rate determined by dividing the Conversion Amount by the Conversion Price ($1.30 above the consolidated closing
bid price for the trading day prior to the execution of the Securities Purchase Agreement, dated January 27, 2020, between and the purchasers
referenced therein). The Conversion Amount is the sum of the Stated Value of the Series E Preferred Shares then being converted plus
any other unpaid amounts payable with respect to the Series E Preferred Shares being converted plus the &ldquo;Make Whole Amount&rdquo;
(the amount of any dividends that, but for the conversion, would have accrued at the dividend rate for the period through the third anniversary
of the initial issuance date). The Conversion Rate is also subject to adjustment for stock splits, dividends recapitalizations and similar
events.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Anti-Takeover
Measures</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>Nevada
Anti-Takeover Law and Charter and Bylaws Provisions</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>&nbsp;</I></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">NRS
sections 78.378 to 78.3793 provide state regulation over the acquisition of controlling interest in certain Nevada corporations unless
the articles of incorporation or bylaws of the corporation provide that the provisions of these sections do not apply. This statute currently
does not apply to our company because in order to be applicable, we would need to have a specified number of Nevada residents as shareholders,
and we would have to do business in Nevada directly or through an affiliate.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><I>Anti-Takeover
Effects of Certain Provisions of Our Charter Documents</I></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>&nbsp;</I></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Our
articles of incorporation and bylaws contain provisions that could delay or prevent changes in control or changes in our management without
the consent of our board of directors. These provisions include the following:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">a classified board of directors
    with three-year staggered terms, which may delay the ability of stockholders to change the membership of a majority of our board
    of directors; </FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">no cumulative voting in
    the election of directors, which limits the ability of minority stockholders to elect director candidates;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">the exclusive right of
    our board of directors to elect a director to fill a vacancy created by the expansion of the board of directors or the resignation,
    death or removal of a director, which prevents stockholders from being able to fill vacancies on our board of directors; </FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">the ability of our board
    of directors to authorize the issuance of additional shares of preferred stock and to determine the terms of those shares, including
    preferences and voting rights, without stockholder approval, which could adversely affect the rights of our common stockholders or
    be used to deter a possible acquisition of our company;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify">&nbsp;</TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">the ability of our board
    of directors to alter our bylaws without obtaining stockholder approval; </FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">the required approval of
    the holders of at least two-thirds of the shares entitled to vote at an election of directors to adopt, amend or repeal our bylaws
    or repeal the provisions of our articles of incorporation and bylaws regarding the election and removal of directors; </FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">a prohibition on stockholder
    action by written consent, which forces stockholder action to be taken at an annual or special meeting of our stockholders; </FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">the requirement that a
    special meeting of stockholders may be called only by the chairman of the board of directors, the chief executive officer, the president
    or the board of directors, which may delay the ability of our stockholders to force consideration of a proposal or to take action,
    including the removal of directors; and </FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">advance notice procedures
    that stockholders must comply with in order to nominate candidates to our board of directors or to propose matters to be acted upon
    at a stockholders&rsquo; meeting, which may discourage or deter a potential acquirer from conducting a solicitation of proxies to
    elect the acquirer&rsquo;s own slate of directors or otherwise attempting to obtain control of us.</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">These
provisions could inhibit or prevent possible transactions that some stockholders may consider attractive.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Transfer
Agent</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
transfer agent and registrar of our common stock is Issuer Direct Corporation. The address of our transfer agent and registrar is 1981
Murray Holladay Road, Suite 100 Salt Lake City, Utah 84117, and its telephone number is (801) 272-9294.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><A NAME="a_26"></A>DESCRIPTION
OF WARRANTS</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 24.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
following summary of the material terms and provisions of the Warrants is not complete and is subject to, and qualified in its entirety
by the provisions of the Warrants, the form of which has been filed as an exhibit to the registration statement of which this prospectus
is part:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 24.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Term</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 24.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Of
the June 2018 warrants, 46,887 are exercisable at any time on or before June 26, 2023. Of the March 2019 Warrants, 42,024 are exercisable
at any time on or before March 15, 2024.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 24.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Exercise
Price</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 24.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
current exercise price of the June 2018 warrants is $10.80 per share and the current exercise price of the March 2019 Warrants is $16.10
per share. The exercise price is subject to appropriate adjustment in the event of certain stock dividends and distributions, stock splits,
stock combinations, distributions of assets, reclassifications or similar events affecting our common stock.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 24.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Exercisability</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 24.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Warrants are exercisable at the option of each holder, in whole or in part, by delivering to us a duly executed exercise notice accompanied
by payment in full for the number of shares of our common stock purchased upon such exercise (except in the case of a cashless exercise
as discussed below). A holder (together with its affiliates) may not exercise any portion of the Warrants to the extent that the holder
would own more than 4.99% of the outstanding common stock after exercise, except that upon at least 61 days&rsquo; prior notice from
the holder to us, the holder may increase the amount of ownership of outstanding stock after exercising the holder&rsquo;s Warrants to
up to 9.99% of the number of shares of our common stock outstanding immediately after giving effect to the exercise, as such percentage
ownership is determined in accordance with the terms of the Warrants.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 24.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Cashless
Exercise</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 24.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">If,
at the time a holder exercises a Warrant, there is no effective registration statement registering, or the prospectus contained therein
is not available for an issuance of the shares underlying the Warrant to the holder, then in lieu of making the cash payment otherwise
contemplated to be made to us upon such exercise in payment of the aggregate exercise price, the holder may elect instead to receive
upon such exercise, either in whole or in part, the net number of shares of common stock determined according to a formula set forth
in the Warrants.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 24.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Transferability</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 24.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Subject
to applicable laws, the Warrants may be transferred at the option of the holder upon surrender of the Warrants to us together with the
appropriate instruments of transfer.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 24.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Authorized
Shares</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 24.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">During
the period the Warrants are outstanding, we will reserve from our authorized and unissued common stock a sufficient number of shares
to provide for the issuance of shares of common stock upon the exercise of the Warrants.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 24.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Exchange
Listing</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 24.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Warrants are not listed for trading on The NASDAQ Capital Market, any national securities exchange or other nationally recognized trading
system.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 24.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Fundamental
Transactions</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 24.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">In
the event of any fundamental transaction, as described in the Warrants and generally including any merger with or into another entity,
sale of all or substantially all of our assets, tender offer or exchange offer, or reclassification of our common stock, then upon any
subsequent exercise of a Warrant, the holder shall have the right to receive as alternative consideration, for each share of our common
stock that would have been issuable upon such exercise immediately prior to the occurrence of such fundamental transaction, the number
of shares of common stock of the successor or acquiring corporation or of Sigma Labs, Inc., if we are the surviving corporation, and
any additional consideration receivable upon or as a result of such transaction by a holder of the number of shares of our common stock
for which the Warrant is exercisable immediately prior to such event. In addition, in the event of a fundamental transaction that is
an all-cash transaction, a &ldquo;going private transaction&rdquo; or a transaction with a person or entity not traded on an eligible
securities market, then we or any successor entity shall pay at the holder&rsquo;s option, exercisable at any time commencing on the
earlier of the public disclosure of the fundamental transaction or the consummation of the fundamental transaction and continuing for
90 days after the public disclosure of the consummation of the fundamental transaction, an amount of cash equal to the value of the warrant
as determined in accordance with the Black Scholes option pricing model.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 24.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Right
as a Stockholder</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 24.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Except
as otherwise provided in the Warrants or by virtue of such holder&rsquo;s ownership of shares of our common stock, the holders of the
Warrants do not have the rights or privileges of holders of our common stock, including any voting rights, until they exercise their
Warrants.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 24.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Waivers
and Amendments</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 24.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Any
term of the warrants issued in the offering may be amended or waived with our written consent and the written consent of the holders
of warrants representing a majority of the shares of our common stock underlying the Warrants then outstanding, except that no such action
may increase the exercise price of any Warrant or decrease the number of shares or class of stock obtainable upon exercise of any Warrant
without the written consent of the holder of the Warrant.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 24.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><A NAME="a_27"></A>PLAN
OF DISTRIBUTION</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 24.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">This
prospectus relates to shares of our common stock issuable upon the exercise of our outstanding Warrants. The June 2018 Warrants were
offered and sold by us pursuant to a prospectus supplement dated June 22, 2018. The March 2019 Warrants were offered and sold by us pursuant
to a prospectus supplement dated March 13, 2019. The ongoing offer for sale by us of the shares of our common stock issuable upon exercise
of the Warrants is being made pursuant to this prospectus. Shares of common stock issuable upon exercise of the outstanding Warrants
will be listed on The NASDAQ Capital Market under the symbol &ldquo;SGLB.&rdquo;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 24.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 24.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">All
of the Warrants are outstanding, and no additional Warrants will be issued. We will deliver shares of our common stock upon exercise
of a Warrant, in whole or in part. We will not issue fractional shares. Each Warrant contains instructions for exercise. In order to
exercise a Warrant, the holder must deliver to us, or our transfer agent, the information required by the Warrants, along with payment
of the exercise price for the shares to be purchased. The common stock will be distributed to Warrant holders who exercise the Warrants
and deliver payment of the purchase price, in accordance with the terms of the Warrants.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 24.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><A NAME="a_28"></A>WHERE
YOU CAN FIND MORE INFORMATION</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 24.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
file annual, quarterly and current reports, proxy statements and other information with the SEC. Our SEC filings are available to the
public over the Internet at the SEC&rsquo;s website at http://www.sec.gov. The SEC&rsquo;s website contains reports, proxy and information
statements and other information regarding issuers such as us that file electronically with the SEC. You may also read and copy any document
we file with the SEC at the SEC&rsquo;s Public Reference Room at 100 F Street, N.E., Room 1580, Washington, D.C. 20549, and may obtain
copies of these documents at prescribed rates by writing to the SEC. Please call the SEC at 1-800-SEC-0330 for further information on
the operation of its Public Reference Room.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 24.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 24.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Information
about us is also available at our website at www.sigmalabs.com; however, information on our website is not incorporated into this prospectus
and is not a part of this prospectus supplement.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 24.5pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><A NAME="a_29"></A>INCORPORATION
OF CERTAIN DOCUMENTS BY REFERENCE</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
SEC allows us to incorporate into this prospectus by reference the information we file with it, which means that we can disclose important
information to you by referring you to the documents containing that information. The information incorporated by reference is considered
to be part of this prospectus, and information that we later file with the SEC will automatically update and, where applicable, modify
or supersede that information.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
incorporate by reference into this prospectus supplement the following documents that we have filed, or will file, with the SEC:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="https://www.sec.gov/Archives/edgar/data/788611/000149315221006709/form10-k.htm" STYLE="-sec-extract: exhibit">our annual report on Form 10-K for the fiscal year ended December 31, 2020 filed with the SEC on March 24, 2021;</A></FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="https://www.sec.gov/Archives/edgar/data/788611/000149315221009466/form10-q.htm" STYLE="-sec-extract: exhibit">our quarterly report on Form 10-Q for the quarterly period ended March 31, 2021 filed with the SEC on April 22,2021;</A></FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">our Current Reports on
    Form 8-K filed with the SEC on <A HREF="https://www.sec.gov/Archives/edgar/data/788611/000149315221000848/form8-k.htm" STYLE="-sec-extract: exhibit">January 12, 2021</A>, <A HREF="https://www.sec.gov/Archives/edgar/data/788611/000149315221007229/form8-k.htm" STYLE="-sec-extract: exhibit">March 30, 2021</A> and <A HREF="https://www.sec.gov/Archives/edgar/data/788611/000149315221012847/form8-k.htm" STYLE="-sec-extract: exhibit">May 25, 2021</A>,</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A HREF="https://www.sec.gov/Archives/edgar/data/788611/000107878217000179/form8a021017_8a12b.htm" STYLE="-sec-extract: exhibit">the description of our Common Stock contained in our Registration Statement on Form 8-A (File No. 001-38015) filed with the SEC on February 14, 2017, including any amendment or reports filed for the purpose of updating such description.</A></FONT></P></TD></TR>

<TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD></TR>
<TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in">&#9679;</TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Each
                                            document that we file with the SEC under Section 13(a), 13(c), 14 or 15(d) of the Exchange
                                            Act after the date on which we filed the Form S-3 Registration Statement and before the termination
                                            of this offering, with information in each such filing to be deemed to be incorporated by
                                            reference into this prospectus as of the date we make the filing with the SEC.</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 1in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">You
may request a copy of any of these filings from us at no cost by writing or calling our Chief Executive Officer at the following address
or telephone number: Sigma Labs, Inc.; 3900 Paseo del Sol, Santa Fe, New Mexico 87507; (505) 438-2576.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Notwithstanding
the foregoing, no portion of any document that is &ldquo;furnished&rdquo; but not &ldquo;filed&rdquo; in accordance with SEC rules under
Exchange Act shall be deemed to be incorporated by reference into the Form S-3 Registration Statement. Any statement contained in the
Form S-3 Registration Statement or in a document incorporated by reference into the Form S-3 Registration Statement will be deemed to
be modified or superseded for purposes of the Form S-3 Registration Statement to the extent that a statement contained in the Form S-3
Registration Statement or in any other subsequently filed document that is incorporated by reference into the Form S-3 Registration Statement
modifies or supersedes the statement. Any statement so modified or superseded will not be deemed, except as so modified or superseded,
to constitute a part of the Form S-3 Registration Statement.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><A NAME="a_30"></A>LEGAL
MATTERS</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; background-color: white">The
validity of the shares being offered hereby has been passed upon by TroyGould PC, Los Angeles, California. </FONT><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Certain
attorneys employed by TroyGould PC beneficially own shares of our common stock constituting in the aggregate less than 1% of our outstanding
shares of common stock.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A NAME="a_31"></A>EXPERTS</FONT></P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
financial statements of Sigma Labs, Inc. as of December 31, 2020 and December 31, 2019, and for the years then ended, which are incorporated
into this prospectus supplement by reference to our Annual Report on Form 10-K for the year ended December 31, 2020, have been
so incorporated in reliance on the report of Haynie &amp; Company, an independent registered public accounting firm, given on the authority
of said firm as experts in auditing and accounting.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>[BASE
PROSPECTUS TO BE INCLUDED IN FINAL PROSPECTUS SUPPLEMENT FILED PURSUANT TO RULE 424(b)(2)] </B></FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>PROSPECTUS
SUPPLEMENT</B></FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>SIGMA
LABS, INC.</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>88,911
Shares of Common Stock</B></FONT></P>

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Upon Exercise of Warrants Previously Issued</B></FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>The
date of this prospectus is &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;, 2021</B></FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">PART
II</FONT></P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">INFORMATION
NOT REQUIRED IN PROSPECTUS</FONT></P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" BORDER="0" STYLE="width: 100%; font: bold 10pt Times New Roman, Times, Serif">
<TR STYLE="vertical-align: top">
  <TD STYLE="text-align: justify; width: 0.75in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Item 14.</FONT></TD>
  <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"> Other Expenses of Issuance and Distribution.</FONT></TD></TR>
</TABLE>


<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 24.5pt; background-color: white"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
estimate that the expenses incurred in connection with the distribution described in this registration statement will be as set forth
below. We will bear all of such expenses.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; background-color: white"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" ALIGN="CENTER" STYLE="border-collapse: collapse; width: 90%; font: 10pt Times New Roman, Times, Serif">
  <TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="width: 78%; text-align: left">SEC registration fee</TD><TD STYLE="width: 2%">&nbsp;</TD>
    <TD STYLE="width: 1%; text-align: left">$</TD><TD STYLE="width: 18%; text-align: right">5,584.07</TD><TD STYLE="width: 1%; text-align: left">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left">Printing expenses</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">*</FONT></TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left">Legal fees and expenses</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">*</FONT></TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left">Accounting fees and expenses</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">*</FONT></TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left">Transfer agent and registrar fees and expenses</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">*</FONT></TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left">Trustee fees and expenses</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">*</FONT></TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left">Warrant agent fees and expenses</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">&nbsp;</TD><TD STYLE="text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">*</FONT></TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left; padding-bottom: 1.5pt">Miscellaneous expenses</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1.5pt solid; text-align: left">&nbsp;</TD><TD STYLE="border-bottom: Black 1.5pt solid; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">*</FONT></TD><TD STYLE="padding-bottom: 1.5pt; text-align: left">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="padding-bottom: 2.5pt">Total</TD><TD STYLE="padding-bottom: 2.5pt">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 2.5pt double; text-align: left">$</TD><TD STYLE="border-bottom: Black 2.5pt double; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">*</FONT></TD><TD STYLE="padding-bottom: 2.5pt; text-align: left">&nbsp;</TD></TR>
  </TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0"><TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
<TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">*</FONT></TD><TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Estimated
                                            expenses, if any, not presently known.</FONT></TD></TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0.5in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" BORDER="0" STYLE="width: 100%; font: bold 10pt Times New Roman, Times, Serif">
<TR STYLE="vertical-align: top">
  <TD STYLE="text-align: justify; width: 0.75in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Item 15.</FONT></TD>
  <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Indemnification of Directors
and Officers.</FONT></TD></TR>
</TABLE>


<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Pursuant
to our amended and restated articles of incorporation, none of our directors or officers will have any personal liability to us or our
stockholders for damages for breach of fiduciary duty as a director or officer, except for damages for breach of fiduciary duty resulting
from (1) acts or omissions which involve intentional misconduct, fraud or a knowing violation of law or (2) the payment of dividends
in violation of the applicable statutes of Nevada.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
78.7502 of the Nevada Revised Statutes permits a corporation to indemnify a present or former director, officer, employee or agent of
the corporation, or of another entity or enterprise for which such person is or was serving in such capacity at the request of the corporation,
who was or is a party or is threatened to be made a party to any threatened, pending or completed action, suit or proceeding, except
an action by or in the right of the corporation, against expenses, including attorneys&rsquo; fees, judgments, fines and amounts paid
in settlement actually and reasonably incurred in connection therewith, arising by reason of such person&rsquo;s service in such capacity
if such person (1) is not liable pursuant to Section 78.138 of the Nevada Revised Statutes, which sets forth standards for the conduct
of directors and officers, or (2) acted in good faith and in a manner which he or she reasonably believed to be in or not opposed to
the best interests of the corporation and, with respect to a criminal action or proceeding, had no reasonable cause to believe his or
her conduct was unlawful. In the case of actions brought by or in the right of the corporation, however, no indemnification may be made
for any claim, issue or matter as to which such person has been adjudged by a court of competent jurisdiction, after exhaustion of all
appeals therefrom, to be liable to the corporation or for amounts paid in settlement to the corporation, unless and only to the extent
that the court in which the action or suit was brought or other court of competent jurisdiction determines upon application that in view
of all the circumstances of the case, such person is fairly and reasonably entitled to indemnity for such expenses as the court deems
proper.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
78.751 of the Nevada Revised Statutes permits any discretionary indemnification under Section 78.7502 of the Nevada Revised Statutes,
unless ordered by a court or advanced to a director or officer by the corporation in accordance with the Nevada Revised Statutes, to
be made by a corporation only as authorized in each specific case upon a determination that indemnification of the director, officer,
employee or agent is proper in the circumstances. Such determination must be made (1) by the stockholders, (2) by the board of directors
by majority vote of a quorum consisting of directors who were not parties to the action, suit or proceeding, (3) if a majority vote of
a quorum consisting of directors who were not parties to the action, suit or proceeding so orders, by independent legal counsel in a
written opinion, or (4) if a quorum consisting of directors who were not parties to the action, suit or proceeding cannot be obtained,
by independent legal counsel in a written opinion.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Our
amended and restated bylaws require us to indemnify our directors and officers in a manner that is consistent with the provisions of
Nevada law described in the preceding two paragraphs.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
maintain a general liability insurance policy that covers certain liabilities of directors and officers of our corporation arising out
of claims based on acts or omissions in their capacities as directors or officers. Furthermore, we have entered into indemnification
agreements with our directors and officers that, among other things, indemnify them against certain liabilities that may arise by reason
of their status or service as directors or officers.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" BORDER="0" STYLE="width: 100%; font: bold 10pt Times New Roman, Times, Serif">
<TR STYLE="vertical-align: top">
  <TD STYLE="text-align: justify; width: 0.75in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Item 16.</FONT></TD>
  <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Exhibits.</FONT></TD></TR>
</TABLE>


<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">A
list of exhibits filed with this Registration Statement on Form S-3 is set forth in the Exhibit Index and is incorporated by reference
into this Item 16.&#9;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" BORDER="0" STYLE="width: 100%; font: bold 10pt Times New Roman, Times, Serif">
<TR STYLE="vertical-align: top">
  <TD STYLE="text-align: justify; width: 0.75in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Item 17.</FONT></TD>
  <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Undertakings.</FONT></TD></TR>
</TABLE>


<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(a)&nbsp;The
undersigned registrant hereby undertakes:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(1)&nbsp;To
file, during any period in which offers or sales are being made, a post-effective amendment to this registration statement:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 1.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(i)&nbsp;To
include any prospectus required by Section 10(a)(3) of the Securities Act of 1933;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 1.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 1.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(ii)&nbsp;To
reflect in the prospectus any facts or events arising after the effective date of the registration statement (or the most recent post-effective
amendment thereof) which, individually or in the aggregate, represent a fundamental change in the information set forth in the registration
statement; notwithstanding the foregoing, any increase or decrease in volume of securities offered (if the total dollar value of securities
offered would not exceed that which was registered) and any deviation from the low or high end of the estimated maximum offering range
may be reflected in the form of prospectus filed with the Securities and Exchange Commission pursuant to Rule 424(b) if, in the aggregate,
the changes in volume and price represent no more than a 20 percent change in the maximum aggregate offering price set forth in the &ldquo;Calculation
of Registration Fee&rdquo; table in the effective registration statement; and</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 1.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 1.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(iii)&nbsp;To
include any material information with respect to the plan of distribution not previously disclosed in the registration statement or any
material change to such information in the registration statement;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 1.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">provided,
however, that paragraphs (a)(1)(i), (a)(1)(ii) and (a)(1)(iii) above do not apply if the information required to be included in a post-effective
amendment by those paragraphs is contained in reports filed with or furnished to the Securities and Exchange Commission by the registrant
pursuant to Section 13 or Section 15(d) of the Securities Exchange Act of 1934 that are incorporated by reference in the registration
statement, or is contained in a form of prospectus filed pursuant to Rule 424(b) that is part of the registration statement.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(2)&nbsp;That,
for the purpose of determining any liability under the Securities Act of 1933, each such post-effective amendment shall be deemed to
be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be
deemed to be the initial bona fide offering thereof.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(3)&nbsp;To
remove from registration by means of a post-effective amendment any of the securities being registered which remain unsold at the termination
of the offering.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(4)&nbsp;That,
for the purpose of determining liability under the Securities Act of 1933 to any purchaser:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 1.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(A)&nbsp;Each
prospectus filed by the registrant pursuant to Rule 424(b)(3) shall be deemed to be part of the registration statement as of the date
the filed prospectus was deemed part of and included in the registration statement; and</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 1.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 1.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(B)&nbsp;Each
prospectus required to be filed pursuant to Rule 424(b)(2), (b)(5), or (b)(7) as part of a registration statement in reliance on Rule
430B relating to an offering made pursuant to Rule 415(a)(1)(i), (vii), or (x) for the purpose of providing the information required
by Section 10(a) of the Securities Act of 1933 shall be deemed to be part of and included in the registration statement as of the earlier
of the date such form of prospectus is first used after effectiveness or the date of the first contract of sale of securities in the
offering described in the prospectus. As provided in Rule 430B, for liability purposes of the issuer and any person that is at that date
an underwriter, such date shall be deemed to be a new effective date of the registration statement relating to the securities in the
registration statement to which that prospectus relates, and the offering of such securities at that time shall be deemed to be the initial
bona fide offering thereof; provided, however, that no statement made in a registration statement or prospectus that is part of the registration
statement or made in a document incorporated or deemed incorporated by reference into the registration statement or prospectus that is
a part of this registration statement will, as to a purchaser with a time of contract of sale prior to such effective date, supersede
or modify any statement that was made in the registration statement or prospectus that was part of the registration statement or made
in any such document immediately prior to such effective date.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 1.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(5)&nbsp;That,
for the purpose of determining liability of the registrant under the Securities Act of 1933 to any purchaser in the initial distribution
of securities, the undersigned registrant undertakes that in a primary offering of securities of the undersigned registrant pursuant
to this registration statement, regardless of the underwriting method used to sell the securities to the purchaser, if the securities
are offered or sold to such purchaser by means of any of the following communications, the undersigned registrant will be a seller to
the purchaser and will be considered to offer or sell such securities to such purchaser:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 1.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(i)&nbsp;Any
preliminary prospectus or prospectus of the undersigned registrant relating to the offering required to be filed pursuant to Rule 424;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 1.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 1.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(ii)&nbsp;Any
free writing prospectus relating to the offering prepared by or on behalf of the undersigned registrant or used or referred to by the
undersigned registrant;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 1.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 1.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(iii)&nbsp;The
portion of any other free writing prospectus relating to the offering containing material information about the undersigned registrant
or its securities provided by or on behalf of the undersigned registrant; and</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 1.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 1.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(iv)&nbsp;Any
other communications that is an offer in the offering made by the undersigned registrant to the purchaser.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 1.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(b)&nbsp;The
undersigned registrant hereby undertakes that, for purposes of determining any liability under the Securities Act of 1933, each filing
of the registrant&rsquo;s annual report pursuant to Section 13(a) or Section 15(d) of the Securities Exchange Act of 1934 (and, where
applicable, each filing of an employee benefit plan&rsquo;s annual report pursuant to Section 15(d) of the Securities Exchange Act of
1934) that is incorporated by reference in the registration statement shall be deemed to be a new registration statement relating to
the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering
thereof.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(c)&nbsp;Insofar
as indemnification for liabilities arising under the Securities Act of 1933 may be permitted to directors, officers and controlling persons
of the registrant pursuant to the foregoing provisions, or otherwise, the registrant has been advised that in the opinion of the Securities
and Exchange Commission such indemnification is against public policy as expressed in the Securities Act of 1933 and is, therefore, unenforceable.
In the event that a claim for indemnification against such liabilities (other than the payment by the registrant of expenses incurred
or paid by a director, officer or controlling person of the registrant in the successful defense of any action, suit or proceeding) is
asserted by such director, officer or controlling person in connection with the securities being registered, the registrant will, unless
in the opinion of its counsel the matter has been settled by controlling precedent, submit to a court of appropriate jurisdiction the
question whether such indemnification by it is against public policy as expressed in the Securities Act of 1933 and will be governed
by the final adjudication of such issue.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(d)&nbsp;The
undersigned registrant hereby undertakes to file an application for the purpose of determining the eligibility of the trustee to act
under subsection (a) of Section 310 of the Trust Indenture Act (the &ldquo;Act&rdquo;) in accordance with the rules and regulations prescribed
by the SEC under Section 305(b)(2) of the Act.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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    <!-- Field: /Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SIGNATURES</FONT></P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Pursuant
to the requirements of the Securities Act of 1933, the registrant certifies that it has reasonable grounds to believe that it meets all
of the requirements for filing on Form S-3 and has duly caused this registration statement to be signed on its behalf by the undersigned,
thereunto duly authorized, in the City of Santa Fe, New Mexico, on June 11, 2021.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">SIGMA LABS, INC.</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify">&nbsp;</TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="padding-bottom: 1.5pt; font: 10pt Times New Roman, Times, Serif; text-align: justify; width: 50%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="padding-bottom: 1.5pt; font: 10pt Times New Roman, Times, Serif; text-align: justify; width: 3%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">By:&nbsp;</FONT></TD>
    <TD STYLE="border-bottom: Black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; text-align: justify; width: 47%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>/s/
    Mark Ruport</I></FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Mark
    Ruport</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">President
    and Chief Executive Officer</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><A NAME="a_32"></A>POWER
OF ATTORNEY</FONT></P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">KNOW
ALL PERSONS BY THESE PRESENTS, that each person whose signature appears below constitutes and appoints Mark Ruport as his or her true
and lawful attorney-in-fact and agent, with full power of substitution and resubstitution, for him or her and in his or her name, place
and stead, in any and all capacities, to file and sign any and all amendments, including pre-effective amendments and post-effective
amendments and any registration statement for the same offering that is to be effective under Rule 462(b) of the Securities Act of 1933,
to this registration statement, with the Securities and Exchange Commission, granting unto said attorney-in-fact and agent, full power
and authority to do and perform each and every act and thing requisite and necessary to be done in connection therewith as fully to all
intents and purposes as he or she might or could do in person, hereby ratifying and confirming all that said attorney-in-fact and agent,
or his substitute or substitutes may lawfully do or cause to be done by virtue hereof.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="text-align: justify; font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Pursuant
to the requirements of the Securities Act of 1933, this registration statement has been signed by the following persons in the capacities
indicated on June 11, 2021.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="text-align: center; border-bottom: Black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; width: 49%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Signature</FONT></TD>
    <TD STYLE="padding-bottom: 1.5pt; font: 10pt Times New Roman, Times, Serif; width: 2%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="border-bottom: Black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; width: 49%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Title</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="text-align: center; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="text-align: center; border-bottom: Black 1.5pt solid; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>/s/
    Mark K. Ruport</I></FONT></TD>
    <TD STYLE="padding-bottom: 1.5pt; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="padding-bottom: 1.5pt; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">President
    and Chief Executive Officer</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="text-align: center; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Mark
    K. Ruport</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(Principal
    Executive Officer)</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="text-align: center; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="text-align: center; border-bottom: Black 1.5pt solid; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>/s/
    Frank Orzechowski</I></FONT></TD>
    <TD STYLE="padding-bottom: 1.5pt; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="padding-bottom: 1.5pt; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Chief
    Financial</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="text-align: center; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Frank
    Orzechowski</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(Principal
    Financial and Accounting Officer)</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="text-align: center; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="text-align: center; border-bottom: Black 1.5pt solid; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>/s/
    Salvatore Battinelli</I></FONT></TD>
    <TD STYLE="padding-bottom: 1.5pt; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="padding-bottom: 1.5pt; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Director</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="text-align: center; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Salvatore
    Battinelli</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="text-align: center; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="text-align: center; border-bottom: Black 1.5pt solid; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>/s/
    Dennis Duitch&#9;</I></FONT></TD>
    <TD STYLE="padding-bottom: 1.5pt; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="padding-bottom: 1.5pt; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Director
    </FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="text-align: center; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Dennis
    Duitch</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="text-align: center; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="text-align: center; border-bottom: Black 1.5pt solid; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>/s/
    John Rice</I></FONT></TD>
    <TD STYLE="padding-bottom: 1.5pt; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="padding-bottom: 1.5pt; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Director,
    Chairman</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="text-align: center; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">John
    Rice</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="text-align: center; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="text-align: center; border-bottom: Black 1.5pt solid; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>/s/
    Kent Summers&#9;</I></FONT></TD>
    <TD STYLE="padding-bottom: 1.5pt; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="padding-bottom: 1.5pt; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Director
    </FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="text-align: center; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Kent
    Summers</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  </TABLE>
<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center">&nbsp;</P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">EXHIBIT
INDEX</FONT></P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10.5pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR>
    <TD STYLE="vertical-align: bottom; width: 0.75in; border-bottom: black 1.5pt solid; text-align: center"><FONT STYLE="font-size: 10pt"><B>Exhibit Number</B></FONT></TD>
    <TD STYLE="vertical-align: top; width: 0.15in">&nbsp;</TD>
    <TD STYLE="vertical-align: top; border-bottom: black 1.5pt solid"><FONT STYLE="font-size: 10pt"><B>Description of Document</B></FONT></TD></TR>
<TR>
    <TD STYLE="vertical-align: bottom; border-bottom: black 1.5pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>Exhibit</B></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>Number</B></P></TD>
    <TD STYLE="vertical-align: top">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom; border-bottom: black 1.5pt solid; text-align: center"><FONT STYLE="font-size: 10pt"><B>Description</B></FONT></TD></TR>
<TR>
    <TD STYLE="vertical-align: bottom; text-align: center">&nbsp;</TD>
    <TD STYLE="vertical-align: top">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom; text-align: center">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt">1.1</FONT></TD>
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt">Form of Underwriting Agreement.*</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt">3.1</FONT></TD>
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: justify"><A HREF="https://www.sec.gov/Archives/edgar/data/788611/000149315221006709/ex3-1.htm"><FONT STYLE="font-size: 10pt">Amended and Restated Articles of Incorporation of the Company, as amended (filed by the Company as Exhibit 3.1 to the Company&rsquo;s Form 10-K, filed on March 24, 2021, and incorporated herein by reference).</FONT></A></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt">3.2</FONT></TD>
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: justify"><A HREF="https://www.sec.gov/Archives/edgar/data/788611/000114420411033319/v224667_ex3-2.htm"><FONT STYLE="font-size: 10pt">Certificate of Correction to Amended and Restated Articles of Incorporation, as filed with the Nevada Secretary of State on May 25, 2011 (filed as Exhibit 3.2 to the Company&rsquo;s Current Report on Form 8-K filed June 1, 2011, and incorporated herein by reference).</FONT></A></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt">3.3</FONT></TD>
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: justify"><A HREF="https://www.sec.gov/Archives/edgar/data/788611/000114420416088535/v433391_ex3-3.htm"><FONT STYLE="font-size: 10pt">Articles of Merger (filed as Exhibit 3.3 to the Company&rsquo;s Form 10-K, filed on March 16, 2016, for the fiscal year ended December 31, 2015, and incorporated herein by reference).</FONT></A></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt">3.4</FONT></TD>
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: justify"><A HREF="https://www.sec.gov/Archives/edgar/data/788611/000114420416089066/v434815_ex3-1.htm"><FONT STYLE="font-size: 10pt">Certificate of Change Pursuant to NRS 78.209 (filed as Exhibit 3.1 to the Company&rsquo;s Current Report on Form 8-K filed March 21, 2016, and incorporated herein by reference).</FONT></A></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt">3.5</FONT></TD>
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: justify"><A HREF="https://www.sec.gov/Archives/edgar/data/788611/000107878217000236/f8k021617_ex3z2.htm"><FONT STYLE="font-size: 10pt">Certificate of Change Pursuant to NRS 78.209 (filed as Exhibit 3.2 to the Company&rsquo;s Current Report on Form 8-K filed February 21, 2017, and incorporated herein by reference).</FONT></A></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt">3.6</FONT></TD>
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: justify"><A HREF="https://www.sec.gov/Archives/edgar/data/788611/000149315220003119/ex3-1.htm" STYLE="-sec-extract: exhibit">Certificate of Change Pursuant to NRS 78.209. (filed as Exhibit 3.1 to the Company&rsquo;s Current Report on Form 8-K filed February 28, 2020, and incorporated herein by reference).</A></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt">3.7</FONT></TD>
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: justify"><A HREF="https://www.sec.gov/Archives/edgar/data/788611/000149315221012847/ex3-1.htm"><FONT STYLE="font-size: 10pt">Certificate of Amendment to Amended and Restated Articles of Incorporation of the Company, as amended (filed as Exhibit 3.1 of the Company&rsquo;s Current Report on Form 8-K filed May 24, 2021 and incorporated herein by reference).</FONT></A></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt">3.8</FONT></TD>
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: justify"><A HREF="https://www.sec.gov/Archives/edgar/data/788611/000107878217000236/f8k021617_ex3z1.htm"><FONT STYLE="font-size: 10pt">Certificate of Designation of Rights, Preference and Privileges of Series A Convertible Preferred Stock (filed as Exhibit 3.1 to the Company&rsquo;s Current Report on Form 8-K filed February 21, 2017, and incorporated herein by reference).</FONT></A></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt">3.9</FONT></TD>
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: justify"><A HREF="https://www.sec.gov/Archives/edgar/data/788611/000149315218004882/ex3-1.htm"><FONT STYLE="font-size: 10pt">Certificate of Designation of Rights, Preference and Privileges of Series B Convertible Preferred Stock (filed as Exhibit 3.1 to the Company&rsquo;s Current Report on Form 8-K filed April 6, 2018, and incorporated herein by reference).</FONT></A></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt">3.10</FONT></TD>
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: justify"><A HREF="https://www.sec.gov/Archives/edgar/data/788611/000149315218009205/ex3-1.htm"><FONT STYLE="font-size: 10pt">Certificate of Designation of Rights, Preference and Privileges of Series C Convertible Preferred Stock of Sigma Labs, Inc. (filed as Exhibit 3.1 to the Company&rsquo;s Current Report on Form 8-K filed June 26, 2018, and incorporated herein by reference).</FONT></A></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt">3.11</FONT></TD>
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: justify"><A HREF="https://www.sec.gov/Archives/edgar/data/788611/000149315220001399/ex10-2.htm"><FONT STYLE="font-size: 10pt">Certificate of Designations (Series D Convertible Preferred Stock) (filed as Exhibit 10.2 to the Company&rsquo;s Current Report on Form 8-K filed on January 30, 2020 and incorporated herein by reference).</FONT></A></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt">3.12</FONT></TD>
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: justify"><A HREF="https://www.sec.gov/Archives/edgar/data/788611/000149315220001399/ex10-7.htm"><FONT STYLE="font-size: 10pt">Certificate of Designations (Series E Convertible Preferred Stock) (filed as Exhibit 10.7 to the Company&rsquo;s Current Report on Form 8-K filed January 30, 2020 and incorporated herein by reference).</FONT></A></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt">3.13</FONT></TD>
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: justify"><A HREF="https://www.sec.gov/Archives/edgar/data/788611/000149315221006709/ex3-12.htm"><FONT STYLE="font-size: 10pt">Amended and Restated Bylaws of the Company, as amended (filed by the Company as Exhibit 3.12 to the Company&rsquo;s Form 10-K filed March 24, 2021, and incorporated herein by reference).</FONT></A></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt">3.14</FONT></TD>
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt">Certificate of Designations regarding the rights, preferences, privileges and restrictions with respect to any preferred stock issued under this registration statement.*</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt">4.1</FONT></TD>
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><A HREF="https://www.sec.gov/Archives/edgar/data/788611/000107878216003155/s1_ex4z1.htm" STYLE="-sec-extract: exhibit">Specimen Certificate Evidencing Shares of Common Stock of Sigma Labs, Inc. (previously filed by the registrant with the SEC on July 28, 2016 as Exhibit 4.1 to the Registration on Form S-1, and incorporated herein by reference)</A></FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt">4.2</FONT></TD>
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt">Form of Preferred Stock Certificate*</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt">4.3</FONT></TD>
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: justify"><A HREF="ex4-3.htm"><FONT STYLE="font-size: 10pt">Form of Indenture (filed with this Registration Statement)</FONT></A></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt">4.4</FONT></TD>
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt">Form of Debt Security*</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt">4.5</FONT></TD>
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt">Form of Warrant*</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt">4.6</FONT></TD>
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt">Form of Warrant Agreement*</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt">4.7</FONT></TD>
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt">Form of Unit Agreement*</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt">4.8</FONT></TD>
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><A HREF="https://www.sec.gov/Archives/edgar/data/788611/000149315218009205/ex4-1.htm" STYLE="-sec-extract: exhibit">Form of Common Stock Purchase Warrant.(filed as Exhibit 4.1 to the Company&rsquo;s Current Report on Form 8-K filed June 26, 2018, and incorporated herein by reference)</A>.</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt">4.9</FONT></TD>
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><A HREF="https://www.sec.gov/Archives/edgar/data/788611/000149315219003281/ex4-1.htm" STYLE="-sec-extract: exhibit">Form of Common Stock Purchase Warrant (filed as Exhibit 4.1 to the Company&rsquo;s Current Report on Form 8-K filed March 14, 2019, and incorporated by reference).</A></FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt">5.1</FONT></TD>
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD STYLE="text-align: justify"><A HREF="ex5-1.htm"><FONT STYLE="font-size: 10pt">Opinion of TroyGould PC (filed herewith).</FONT></A></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt">23.1</FONT></TD>
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><A HREF="ex23-1.htm">Consent of Haynie &amp; Company (filed herewith)</A></FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt">23.2</FONT></TD>
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><A HREF="ex5-1.htm">Consent of TroyGould PC (included in Exhibit 5.1)</A>.</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-align: center"><FONT STYLE="font-size: 10pt">24.1</FONT></TD>
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD STYLE="text-align: justify"><A HREF="#a_32"><FONT STYLE="font-size: 10pt">Powers of Attorney (included on page II-5).</FONT></A></TD></TR>
</TABLE>
<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"></FONT></P>

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font: 10pt Times New Roman, Times, Serif"></FONT></P>

<!-- Field: Rule-Page --><DIV STYLE="margin-top: 0; margin-bottom: 0; width: 25%"><DIV STYLE="font-size: 1pt; border-top: Black 1.5pt solid">&nbsp;</DIV></DIV><!-- Field: /Rule-Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; background-color: white">*
</FONT><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">To be filed, if applicable, subsequent to the effectiveness
of this registration statement (1) by an amendment to this registration statement or (2) as an exhibit to a Current Report on Form 8-K
and incorporated herein by reference.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt; background-color: white">**
</FONT><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">To be filed, if applicable, subsequent to the effectiveness
of this registration statement under the electronic form type 305B2 pursuant to Section 305(b)(2) of the Trust Indenture Act of 1939.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0; margin-left: 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<TYPE>EX-4.3
<SEQUENCE>2
<FILENAME>ex4-3.htm
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<HEAD>
     <TITLE></TITLE>
</HEAD>
<BODY STYLE="font: 10pt Times New Roman, Times, Serif">

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Exhibit
4.3</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SIGMA
LABS, INC.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">INDENTURE</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Dated
as of __________, 20 ___</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">__________</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt">&nbsp;</P>

<P STYLE="text-align: center; font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">Trustee</FONT></P>



<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 1in; text-align: justify; text-indent: -1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 1in; text-align: justify; text-indent: -1in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><U>TABLE
OF CONTENTS</U> </B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 1in; text-align: justify; text-indent: -1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="padding-bottom: 1.5pt; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="padding-bottom: 1.5pt; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="border-bottom: Black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Page</B></FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">ARTICLE
    I</FONT></TD>
    <TD COLSPAN="2" STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">DEFINITIONS
    AND INCORPORATION BY REFERENCE</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">1</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    1.1</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Definitions</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">1</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    1.2</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Other
    Definitions</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">3</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    1.3</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Incorporation
    by Reference of Trust Indenture Act</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif">4</TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    1.4</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Rules
    of Construction</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">4</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">ARTICLE
    II</FONT></TD>
    <TD COLSPAN="2" STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">THE
    SECURITIES</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">4</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    2.1</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Issuable
    in Series</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">4</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    2.2</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Establishment
    of Terms of Series of Securities</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">4</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    2.3</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Execution
    and Authentication</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">6</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    2.4</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Registrar
    and Paying Agent</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">7</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    2.5</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Paying
    Agent to Hold Money in Trust</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">7</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    2.6</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Securityholder
    Lists</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">7</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    2.7</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Transfer
    and Exchange</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">8</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    2.8</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Mutilated,
    Destroyed, Lost and Stolen Securities</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">8</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    2.9</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Outstanding
    Securities</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">8</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    2.10</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Treasury
    Securities</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">9</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    2.11</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Temporary
    Securities</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">9</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    2.12</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Cancellation</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">9</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    2.13</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Defaulted
    Interest</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">9</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    2.14</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Global
    Securities</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">9</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    2.15</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">CUSIP
    Numbers</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">11</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">ARTICLE
    III</FONT></TD>
    <TD COLSPAN="2" STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">REDEMPTION</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">11</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    3.1</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Notice
    to Trustee</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">11</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    3.2</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Selection
    of Securities to be Redeemed</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">11</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    3.3</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Notice
    of Redemption</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">11</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    3.4</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Effect
    of Notice of Redemption</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">12</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    3.5</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Deposit
    of Redemption Price</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">12</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    3.6</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Securities
    Redeemed in Part</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">12</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">ARTICLE
    IV</FONT></TD>
    <TD COLSPAN="2" STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">COVENANTS</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">12</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    4.1</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Payment
    of Principal and Interest</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">12</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    4.2</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SEC
    Reports</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">12</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    4.3</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Compliance
    Certificate</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">13</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    4.4</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Stay,
    Extension and Usury Laws</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">13</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">ARTICLE
    V</FONT></TD>
    <TD COLSPAN="2" STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SUCCESSORS</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">13</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    5.1</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">When
    Company May Merge, Etc</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">13</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    5.2</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Successor
    Corporation Substituted</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">14</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">ARTICLE
    VI</FONT></TD>
    <TD COLSPAN="2" STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">DEFAULTS
    AND REMEDIES</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">14</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    6.1</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Events
    of Default</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">14</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    6.2</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Acceleration
    of Maturity</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">15</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    6.3</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Collection
    of Indebtedness and Suits for Enforcement by Trustee</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">15</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    6.4</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Trustee
    May File Proofs of Claim</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">16</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    6.5</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Trustee
    May Enforce Claims Without Possession of Securities</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">16</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    6.6</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Application
    of Money Collected</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">16</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    6.7</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Limitation
    on Suits</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">17</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    6.8</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Unconditional
    Right of Holders to Receive Principal and Interest</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">17</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    6.9</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Restoration
    of Rights and Remedies</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">17</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    6.10</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Rights
    and Remedies Cumulative</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">17</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    6.11</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Delay
    or Omission Not Waiver</FONT></TD>
    <TD STYLE="text-align: right; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">18</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; text-align: center; margin-top: 0pt; margin-bottom: 0pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B><U>TABLE
OF CONTENTS (cont.)</U></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; text-align: center"><B>Page</B></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right">&nbsp;</TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    6.12</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Control
    by Holders</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">18</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    6.13</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Waiver
    of Past Defaults</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">18</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    6.14</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Undertaking
    for Costs</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">18</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">ARTICLE
    VII</FONT></TD>
    <TD COLSPAN="2" STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">TRUSTEE</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">19</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    7.1</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Duties
    of Trustee</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">19</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    7.2</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Rights
    of Trustee</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">20</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    7.3</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Individual
    Rights of Trustee</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">20</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    7.4</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Trustee&rsquo;s
    Disclaimer</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">20</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    7.5</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Notice
    of Defaults</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">21</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    7.6</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Reports
    by Trustee to Holders</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">21</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    7.7</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Compensation
    and Indemnity</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">21</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    7.8</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Replacement
    of Trustee</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">21</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    7.9</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Successor
    Trustee by Merger, Etc</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">22</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    7.10</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Eligibility</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">22</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    7.11</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Preferential
    Collection of Claims Against Company</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">22</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">ARTICLE
    VIII</FONT></TD>
    <TD COLSPAN="2" STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SATISFACTION
    AND DISCHARGE</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">23</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    8.1</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Satisfaction
    and Discharge of Indenture</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">23</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    8.2</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Application
    of Trust Funds</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">23</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    8.3</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Legal
    Defeasance of Securities of any Series</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">24</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    8.4</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Covenant
    Defeasance</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">25</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    8.5</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Repayment
    to Company</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">26</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    8.6</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Reinstatement</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">26</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">ARTICLE
    IX</FONT></TD>
    <TD COLSPAN="2" STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">AMENDMENTS
    AND WAIVERS</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">26</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    9.1</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Without
    Consent of Holders</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">26</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    9.2</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">With
    Consent of Holders</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">27</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    9.3</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Limitations</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">27</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    9.4</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Compliance
    with Trust Indenture Act</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">27</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    9.5</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Revocation
    and Effect of Consents</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">28</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    9.6</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Notation
    on or Exchange of Securities</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">28</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    9.7</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Trustee
    Protected</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">28</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">ARTICLE
    X</FONT></TD>
    <TD COLSPAN="2" STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">MISCELLANEOUS</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">28</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    10.1</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Trust
    Indenture Act Controls</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">28</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    10.2</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Notices</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">29</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    10.3</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Communication
    by Holders with Other Holders</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">29</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    10.4</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Certificate
    and Opinion as to Conditions Precedent</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">29</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    10.5</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Statements
    Required in Certificate or Opinion</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">30</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    10.6</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Rules
    by Trustee and Agents</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">30</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    10.7</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Legal
    Holidays</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">30</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    10.8</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">No
    Recourse Against Others</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">30</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    10.9</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Counterparts</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">30</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    10.10</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Governing
    Law, Waiver of Jury Trial, Consent to Jurisdiction</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">30</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    10.11</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">No
    Adverse Interpretation of Other Agreements</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">31</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    10.12</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Successors</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">31</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    10.13</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Severability</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">31</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    10.14</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Table
    of Contents, Headings, Etc</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">31</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    10.15</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Securities
    in a Foreign Currency</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">31</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    10.16</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Judgment
    Currency</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">32</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    10.17</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Force
    Majeure</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">32</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    10.18</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">U.S.A.
    Patriot Act</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">32</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">ARTICLE
    XI</FONT></TD>
    <TD COLSPAN="2" STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SINKING
    FUNDS</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">32</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    11.1</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Applicability
    of Article</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">32</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    11.2</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Satisfaction
    of Sinking Fund Payments with Securities</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">33</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
    11.3</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Redemption
    of Securities for Sinking Fund</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">33</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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    <DIV STYLE="break-before: page; margin-top: 6pt"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">Sigma
Labs, Inc.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Reconciliation
and tie between the Trust Indenture Act of 1939 and</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">the
Indenture, dated as of ___________, 20</FONT> __</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: right; width: 12%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&sect;
    310(a)(1)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; width: 2%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; width: 68%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; width: 2%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; width: 16%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">7.10</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(a)(2)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">7.10</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(a)(3)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Not
    Applicable</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(a)(4)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Not
    Applicable</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(a)(5)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">7.10</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(b)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">7.10</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&sect;
    311(a)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">7.11</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(b)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">7.11</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(c)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Not
    Applicable</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&sect;
    312(a)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">2.6</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(b)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">10.3</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(c)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">10.3</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&sect;
    313(a)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">7.6</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(b)(1)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">7.6</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(b)(2)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">7.6</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(c)(1)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">7.6</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(d)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">7.6</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&sect;
    314(a)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">4.2,
    10.5</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(b)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Not
    Applicable</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(c)(1)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">10.4</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(c)(2)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">10.4</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(c)(3)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Not
    Applicable</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(d)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Not
    Applicable</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(e)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">10.5</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(f)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Not
    Applicable</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&sect;
    315(a)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">7.1</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(b)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">7.5</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(c)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">7.1</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(d)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">7.1</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(e)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">6.14</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&sect;
    316(a)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">2.10</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(a)(1)(A)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">6.12</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(a)(1)(B)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">6.13</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(b)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">6.8</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&sect;
    317(a)(1)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">6.3</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(a)(2)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">6.4</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: rgb(204,238,255)">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(b)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">2.5</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: White">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&sect;
    318(a)</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">10.1</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Note:
This reconciliation and tie shall not, for any purpose, be deemed to be part of the Indenture.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">Indenture
dated as of ______________, 20__ between Sigma Labs, Inc., a Nevada corporation (the &ldquo;Company&rdquo;), and _________ (the &ldquo;Trustee&rdquo;).</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Each
party agrees as follows for the benefit of the other party and for the equal and ratable benefit of the Holders of the Securities issued
under this Indenture.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">ARTICLE
I<BR>
DEFINITIONS AND INCORPORATION BY REFERENCE</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
1.1 <U>Definitions.</U></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&ldquo;<I>Additional
Amounts</I>&rdquo; means any additional amounts which are required hereby or by any Security, under circumstances specified herein or
therein, to be paid by the Company in respect of certain taxes imposed on Holders specified herein or therein and which are owing to
such Holders.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&ldquo;<I>Affiliate</I>&rdquo;
of any specified person means any other person directly or indirectly controlling or controlled by or under common control with such
specified person. For the purposes of this definition, &ldquo;control&rdquo; (including, with correlative meanings, the terms &ldquo;controlled
by&rdquo; and &ldquo;under common control with&rdquo;), as used with respect to any person, shall mean the possession, directly or indirectly,
of the power to direct or cause the direction of the management or policies of such person, whether through the ownership of voting securities
or by agreement or otherwise.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&ldquo;<I>Agent</I>&rdquo;
means any Registrar, Paying Agent or Notice Agent.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&ldquo;<I>Board
of Directors</I>&rdquo; means the board of directors of the Company or any duly authorized committee thereof.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&ldquo;<I>Board
Resolution</I>&rdquo; means a copy of a resolution certified by the Secretary or an Assistant Secretary of the Company to have been adopted
by the Board of Directors or pursuant to authorization by the Board of Directors and to be in full force and effect on the date of the
certificate and delivered to the Trustee.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&ldquo;<I>Business
Day</I>&rdquo; means, unless otherwise provided by Board Resolution, Officer&rsquo;s Certificate or supplemental indenture hereto for
a particular Series, any day except a Saturday, Sunday or a legal holiday in The City of New York, New York (or in connection with any
payment, the place of payment) on which banking institutions are authorized or required by law, regulation or executive order to close.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&ldquo;<I>Capital
Stock</I>&rdquo; means any and all shares, interests, participations, rights or other equivalents (however designated) of corporate stock.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&ldquo;<I>Company</I>&rdquo;
means the party named as such above until a successor replaces it and thereafter means the successor.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&ldquo;<I>Company
Order</I>&rdquo; means a written order signed in the name of the Company by an Officer.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&ldquo;<I>Corporate
Trust Office</I>&rdquo; means the office of the Trustee at which at any particular time its corporate trust business related to this
Indenture shall be principally administered.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&ldquo;<I>Default</I>&rdquo;
means any event which is, or after notice or passage of time or both would be, an Event of Default.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&ldquo;<I>Depositary</I>&rdquo;
means, with respect to the Securities of any Series issuable or issued in whole or in part in the form of one or more Global Securities,
the person designated as Depositary for such Series by the Company, which Depositary shall be a clearing agency registered under the
Exchange Act; and if at any time there is more than one such person, &ldquo;Depositary&rdquo; as used with respect to the Securities
of any Series shall mean the Depositary with respect to the Securities of such Series.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&ldquo;<I>Discount
Security</I>&rdquo; means any Security that provides for an amount less than the stated principal amount thereof to be due and payable
upon declaration of acceleration of the maturity thereof pursuant to Section 6.2.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&ldquo;<I>Dollars</I>&rdquo;
and &ldquo;<I>$</I>&rdquo; means the currency of the United States of America.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&ldquo;<I>Exchange
Act</I>&rdquo; means the Securities Exchange Act of 1934, as amended.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&ldquo;<I>Foreign
Currency</I>&rdquo; means any currency or currency unit issued by a government other than the government of the United States of America.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&ldquo;<I>Foreign
Government Obligations</I>&rdquo; means, with respect to Securities of any Series that are denominated in a Foreign Currency, direct
obligations of, or obligations guaranteed by, the government that issued or caused to be issued such currency for the payment of which
obligations its full faith and credit is pledged and which are not callable or redeemable at the option of the issuer thereof.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>&ldquo;GAAP&rdquo;
</I>means accounting principles generally accepted in the United States of America set forth in the opinions and pronouncements of the
Accounting Principles Board of the American Institute of Certified Public Accountants and statements and pronouncements of the Financial
Accounting Standards Board or in such other statements by such other entity as have been approved by a significant segment of the accounting
profession, which are in effect as of the date of determination.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&ldquo;<I>Global
Security</I>&rdquo; or &ldquo;<I>Global Securities</I>&rdquo; means a Security or Securities, as the case may be, in the form established
pursuant to Section 2.2 evidencing all or part of a Series of Securities, issued to the Depositary for such Series or its nominee, and
registered in the name of such Depositary or nominee.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&ldquo;<I>Holder</I>&rdquo;
or &ldquo;<I>Securityholder</I>&rdquo; means a person in whose name a Security is registered.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&ldquo;<I>Indenture</I>&rdquo;
means this Indenture as amended or supplemented from time to time and shall include the form and terms of particular Series of Securities
established as contemplated hereunder.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&ldquo;<I>interest</I>&rdquo;
with respect to any Discount Security which by its terms bears interest only after Maturity, means interest payable after Maturity.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&ldquo;<I>Maturity</I>,&rdquo;
when used with respect to any Security, means the date on which the principal of such Security becomes due and payable as therein or
herein provided, whether at the Stated Maturity or by declaration of acceleration, call for redemption or otherwise.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&ldquo;<I>Officer</I>&rdquo;
means the Chief Executive Officer, the President, the Chief Financial Officer, the Treasurer or any Assistant Treasurer, the Secretary
or any Assistant Secretary, and any Vice President of the Company.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&ldquo;<I>Officer&rsquo;s
Certificate</I>&rdquo; means a certificate signed by any Officer.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&ldquo;<I>Opinion
of Counsel</I>&rdquo; means a written opinion of legal counsel who is acceptable to the Trustee. The counsel may be an employee of or
counsel to the Company. The opinion may contain customary limitations, conditions and exceptions.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&ldquo;<I>person</I>&rdquo;
means any individual, corporation, partnership, joint venture, association, limited liability company, joint-stock company, trust, unincorporated
organization or government or any agency or political subdivision thereof.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&ldquo;<I>principal</I>&rdquo;
of a Security means the principal of the Security plus, when appropriate, the premium, if any, on, and any Additional Amounts in respect
of, the Security.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&ldquo;<I>Responsible
Officer</I>&rdquo; means any officer of the Trustee in its Corporate Trust Office having responsibility for administration of this Indenture
and also means, with respect to a particular corporate trust matter, any other officer to whom any corporate trust matter is referred
because of his or her knowledge of and familiarity with a particular subject.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&ldquo;<I>SEC</I>&rdquo;
means the Securities and Exchange Commission.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&ldquo;<I>Securities</I>&rdquo;
means the debentures, notes or other debt instruments of the Company of any Series authenticated and delivered under this Indenture.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&ldquo;<I>Series</I>&rdquo;
or &ldquo;<I>Series of Securities</I>&rdquo; means each series of debentures, notes or other debt instruments of the Company created
pursuant to Sections 2.1 and 2.2 hereof.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&ldquo;<I>Stated
Maturity</I>&rdquo; when used with respect to any Security, means the date specified in such Security as the fixed date on which the
principal of such Security or interest is due and payable.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&ldquo;<I>Subsidiary</I>&rdquo;
of any specified person means any corporation, association or other business entity of which more than 50% of the total voting power
of shares of Capital Stock entitled (without regard to the occurrence of any contingency) to vote in the election of directors, managers
or trustees thereof is at the time owned or controlled, directly or indirectly, by such person or one or more of the other Subsidiaries
of that person or a combination thereof.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&ldquo;<I>TIA</I>&rdquo;
means the Trust Indenture Act of 1939 (15 U.S. Code &sect;&sect; 77aaa-77bbbb) as in effect on the date of this Indenture; <U>provided</U>,
<U>however</U>, that in the event the Trust Indenture Act of 1939 is amended after such date, &ldquo;TIA&rdquo; means, to the extent
required by any such amendment, the Trust Indenture Act as so amended.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&ldquo;<I>Trustee</I>&rdquo;
means the person named as the &ldquo;Trustee&rdquo; in the first paragraph of this instrument until a successor Trustee shall have become
such pursuant to the applicable provisions of this Indenture, and thereafter &ldquo;Trustee&rdquo; shall mean or include each person
who is then a Trustee hereunder, and if at any time there is more than one such person, &ldquo;Trustee&rdquo; as used with respect to
the Securities of any Series shall mean the Trustee with respect to Securities of that Series.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&ldquo;<I>U.S.
Government Obligations</I>&rdquo; means securities which are direct obligations of, or guaranteed by, the United States of America for
the payment of which its full faith and credit is pledged and which are not callable or redeemable at the option of the issuer thereof,
and shall also include a depositary receipt issued by a bank or trust company as custodian with respect to any such U.S. Government Obligation
or a specific payment of interest on or principal of any such U.S. Government Obligation held by such custodian for the account of the
holder of a depository receipt, <I>provided</I> that (except as required by law) such custodian is not authorized to make any deduction
from the amount payable to the holder of such depositary receipt from any amount received by the custodian in respect of the U.S. Government
Obligation evidenced by such depositary receipt.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
1.2 <U>Other Definitions</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom">
    <TD STYLE="border-bottom: Black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; width: 82%"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">TERM</FONT></P></TD>
    <TD STYLE="padding-bottom: 1.5pt; font: 10pt Times New Roman, Times, Serif; width: 2%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: center; border-bottom: Black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; width: 16%"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">DEFINED
                                            IN</FONT></P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">SECTION</FONT></P></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: white">
    <TD STYLE="padding-left: 10pt; font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>&ldquo;Bankruptcy
    Law&rdquo;</I></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">6.1</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: white">
    <TD STYLE="padding-left: 10pt; font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>&ldquo;Custodian&rdquo;</I></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">6.1</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: white">
    <TD STYLE="padding-left: 10pt; font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>&ldquo;Event
    of Default&rdquo;</I></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">6.1</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: white">
    <TD STYLE="padding-left: 10pt; font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>&ldquo;Judgment
    Currency&rdquo;</I></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">10.16</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: white">
    <TD STYLE="padding-left: 10pt; font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>&ldquo;Legal
    Holiday&rdquo;</I></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">10.7</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: white">
    <TD STYLE="padding-left: 10pt; font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>&ldquo;mandatory
    sinking fund payment&rdquo;</I></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">11.1</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: white">
    <TD STYLE="padding-left: 10pt; font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>&ldquo;New
    York Banking Day&rdquo;</I></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">10.16</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: white">
    <TD STYLE="padding-left: 10pt; font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>&ldquo;Notice
    Agent&rdquo;</I></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">2.4</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: white">
    <TD STYLE="padding-left: 10pt; font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>&ldquo;optional
    sinking fund payment&rdquo;</I></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">11.1</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: white">
    <TD STYLE="padding-left: 10pt; font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>&ldquo;Paying
    Agent&rdquo;</I></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">2.4</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: white">
    <TD STYLE="padding-left: 10pt; font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>&ldquo;Registrar&rdquo;</I></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">2.4</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: white">
    <TD STYLE="padding-left: 10pt; font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>&ldquo;Required
    Currency&rdquo;</I></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">10.16</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: white">
    <TD STYLE="padding-left: 10pt; font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>&ldquo;Specified
    Courts&rdquo;</I></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">10.10</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; background-color: white">
    <TD STYLE="padding-left: 10pt; font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>&ldquo;successor
    person&rdquo;</I></FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">5.1</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
1.3 <U>Incorporation by Reference of Trust Indenture Act</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Whenever
this Indenture refers to a provision of the TIA, the provision is incorporated by reference in and made a part of this Indenture. The
following TIA terms used in this Indenture have the following meanings:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&ldquo;<I>Commission</I>&rdquo;
means the SEC.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&ldquo;<I>indenture
securities</I>&rdquo; means the Securities.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&ldquo;<I>indenture
security holder</I>&rdquo; means a Securityholder.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&ldquo;<I>indenture
to be qualified</I>&rdquo; means this Indenture.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&ldquo;<I>indenture
trustee</I>&rdquo; or &ldquo;<I>institutional trustee</I>&rdquo; means the Trustee.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&ldquo;<I>obligor</I>&rdquo;
on the indenture securities means the Company and any successor obligor upon the Securities.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">All
other terms used in this Indenture that are defined by the TIA, defined by TIA reference to another statute or defined by SEC rule under
the TIA and not otherwise defined herein are used herein as so defined.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
1.4 <U>Rules of Construction</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Unless
the context otherwise requires:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(a)
a term has the meaning assigned to it;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(b)
an accounting term not otherwise defined has the meaning assigned to it in accordance with GAAP;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(c)
&ldquo;<I>or</I>&rdquo; is not exclusive;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(d)
words in the singular include the plural, and in the plural include the singular; and</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(e)
provisions apply to successive events and transactions.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">ARTICLE
II<BR>
THE SECURITIES</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
2.1 <U>Issuable in Series</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
aggregate principal amount of Securities that may be authenticated and delivered under this Indenture is unlimited. The Securities may
be issued in one or more Series. All Securities of a Series shall be identical except as may be set forth or determined in the manner
provided in a Board Resolution, a supplemental indenture hereto or an Officer&rsquo;s Certificate detailing the adoption of the terms
thereof pursuant to authority granted under a Board Resolution. In the case of Securities of a Series to be issued from time to time,
the Board Resolution, Officer&rsquo;s Certificate or supplemental indenture hereto detailing the adoption of the terms thereof pursuant
to authority granted under a Board Resolution may provide for the method by which specified terms (such as interest rate, maturity date,
record date or date from which interest shall accrue) are to be determined. Securities may differ between Series in respect of any matters,
provided that all Series of Securities shall be equally and ratably entitled to the benefits of this Indenture.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
2.2 <U>Establishment of Terms of Series of Securities</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">At
or prior to the issuance of any Securities within a Series, the following shall be established (as to the Series generally, in the case
of Subsection 2.2.1 and either as to such Securities within the Series or as to the Series generally in the case of Subsections 2.2.2
through 2.2.23) by or pursuant to a Board Resolution, and set forth or determined in the manner provided in a Board Resolution, supplemental
indenture hereto or Officer&rsquo;s Certificate:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">2.2.1
the title (which shall distinguish the Securities of that particular Series from the Securities of any other Series) and ranking (including
the terms of any subordination provisions) of the Series;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">2.2.2
the price or prices (expressed as a percentage of the principal amount thereof) at which the Securities of the Series will be issued;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">2.2.3
any limit upon the aggregate principal amount of the Securities of the Series which may be authenticated and delivered under this Indenture
(except for Securities authenticated and delivered upon registration of transfer of, or in exchange for, or in lieu of, other Securities
of the Series pursuant to Section 2.7, 2.8, 2.11, 3.6 or 9.6);</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">2.2.4
the date or dates on which the principal of the Securities of the Series is payable;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">2.2.5
the rate or rates (which may be fixed or variable) per annum or, if applicable, the method used to determine such rate or rates (including,
but not limited to, any commodity, commodity index, stock exchange index or financial index) at which the Securities of the Series shall
bear interest, if any, the date or dates from which such interest, if any, shall accrue, the date or dates on which such interest, if
any, shall commence and be payable and any regular record date for the interest payable on any interest payment date;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">2.2.6
the place or places where the principal of and interest, if any, on the Securities of the Series shall be payable, where the Securities
of such Series may be surrendered for registration of transfer or exchange and where notices and demands to or upon the Company in respect
of the Securities of such Series and this Indenture may be delivered, and the method of such payment, if by wire transfer, mail or other
means;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">2.2.7
if applicable, the period or periods within which, the price or prices at which and the terms and conditions upon which the Securities
of the Series may be redeemed, in whole or in part, at the option of the Company;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">2.2.8
the obligation, if any, of the Company to redeem or purchase the Securities of the Series pursuant to any sinking fund or analogous provisions
or at the option of a Holder thereof and the period or periods within which, the price or prices at which and the terms and conditions
upon which Securities of the Series shall be redeemed or purchased, in whole or in part, pursuant to such obligation;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">2.2.9
the dates, if any, on which and the price or prices at which the Securities of the Series will be repurchased by the Company at the option
of the Holders thereof and other detailed terms and provisions of such repurchase obligations;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">2.2.10
if other than denominations of $1,000 and any integral multiple thereof, the denominations in which the Securities of the Series shall
be issuable;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">2.2.11
the forms of the Securities of the Series and whether the Securities will be issuable as Global Securities;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">2.2.12
if other than the principal amount thereof, the portion of the principal amount of the Securities of the Series that shall be payable
upon declaration of acceleration of the maturity thereof pursuant to Section 6.2;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">2.2.13
the currency of denomination of the Securities of the Series, which may be Dollars or any Foreign Currency, and if such currency of denomination
is a composite currency, the agency or organization, if any, responsible for overseeing such composite currency;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">2.2.14
the designation of the currency, currencies or currency units in which payment of the principal of and interest, if any, on the Securities
of the Series will be made;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">2.2.15
if payments of principal of or interest, if any, on the Securities of the Series are to be made in one or more currencies or currency
units other than that or those in which such Securities are denominated, the manner in which the exchange rate with respect to such payments
will be determined;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">2.2.16
the manner in which the amounts of payment of principal of or interest, if any, on the Securities of the Series will be determined, if
such amounts may be determined by reference to an index based on a currency or currencies or by reference to a commodity, commodity index,
stock exchange index or financial index;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">2.2.17
the provisions, if any, relating to any security provided for the Securities of the Series;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">2.2.18
any addition to, deletion of or change in the Events of Default which applies to any Securities of the Series and any change in the right
of the Trustee or the requisite Holders of such Securities to declare the principal amount thereof due and payable pursuant to Section
6.2;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">2.2.19
any addition to, deletion of or change in the covenants set forth in Articles IV or V hereof which applies to Securities of the Series;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">2.2.20
any Depositaries, interest rate calculation agents, exchange rate calculation agents or other agents with respect to Securities of such
Series if other than those appointed herein;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">2.2.21
the provisions, if any, relating to conversion or exchange of any Securities of such Series, including if applicable, the conversion
price or exchange price, the conversion or exchange period, provisions as to whether conversion or exchange will be mandatory, at the
option of the Holders thereof or at the option of the Company, the events requiring an adjustment of the conversion price or exchange
price and provisions affecting conversion or exchange if such Series of Securities are redeemed;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">2.2.22
any other terms of the Securities of the Series (which may supplement, modify or delete any provision of this Indenture insofar as it
applies to such Series), including any terms that may be required under applicable law or regulations or advisable in connection with
the marketing of Securities of that Series; and</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">2.2.23
whether any of the Company&rsquo;s direct or indirect Subsidiaries will guarantee the Securities of that Series, including the terms
of subordination, if any, of such guarantees.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">All
Securities of any one Series need not be issued at the same time and may be issued from time to time, consistent with the terms of this
Indenture, if so provided by or pursuant to the Board Resolution, supplemental indenture hereto or Officer&rsquo;s Certificate referred
to above.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
2.3 <U>Execution and Authentication</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">An
Officer shall sign the Securities for the Company by manual or facsimile signature.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">If
an Officer whose signature is on a Security no longer holds that office at the time the Security is authenticated, the Security shall
nevertheless be valid.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">A
Security shall not be valid until authenticated by the manual signature of the Trustee or an authenticating agent. The signature shall
be conclusive evidence that the Security has been authenticated under this Indenture.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Trustee shall at any time, and from time to time, authenticate Securities for original issue in the principal amount provided in the
Board Resolution, supplemental indenture hereto or Officer&rsquo;s Certificate, upon receipt by the Trustee of a Company Order. Each
Security shall be dated the date of its authentication.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
aggregate principal amount of Securities of any Series outstanding at any time may not exceed any limit upon the maximum principal amount
for such Series set forth in the Board Resolution, supplemental indenture hereto or Officer&rsquo;s Certificate delivered pursuant to
Section 2.2, except as provided in Section 2.8.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Prior
to the issuance of Securities of any Series, the Trustee shall have received and (subject to Section 7.2) shall be fully protected in
relying on: (a) the Board Resolution, supplemental indenture hereto or Officer&rsquo;s Certificate establishing the form of the Securities
of that Series or of Securities within that Series and the terms of the Securities of that Series or of Securities within that Series,
(b) an Officer&rsquo;s Certificate complying with Section 10.4, and (c) an Opinion of Counsel complying with Section 10.4.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Trustee shall have the right to decline to authenticate and deliver any Securities of such Series: (a) if the Trustee, being advised
by counsel, determines that such action may not be taken lawfully; or (b) if the Trustee in good faith by its board of directors or trustees,
executive committee or a trust committee of directors and/or vice presidents or a committee of Responsible Officers shall determine that
such action would expose the Trustee to personal liability to Holders of any then outstanding Series of Securities.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Trustee may appoint an authenticating agent acceptable to the Company to authenticate Securities. An authenticating agent may authenticate
Securities whenever the Trustee may do so. Each reference in this Indenture to authentication by the Trustee includes authentication
by such agent. An authenticating agent has the same rights as an Agent to deal with the Company or an Affiliate of the Company.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
2.4 <U>Registrar and Paying Agent</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company shall maintain, with respect to each Series of Securities, at the place or places specified with respect to such Series pursuant
to Section 2.2, an office or agency where Securities of such Series may be presented or surrendered for payment (the &ldquo;<I>Paying
Agent</I>&rdquo;), where Securities of such Series may be surrendered for registration of transfer or exchange (the &ldquo;<I>Registrar</I>&rdquo;)
and where notices and demands to or upon the Company in respect of the Securities of such Series and this Indenture may be delivered
(the &ldquo;<I>Notice Agent</I>&rdquo;). The Registrar shall keep a register with respect to each Series of Securities and to their transfer
and exchange. The Company will give prompt written notice to the Trustee of the name and address, and any change in the name or address,
of each Registrar, Paying Agent or Notice Agent. If at any time the Company shall fail to maintain any such required Registrar, Paying
Agent or Notice Agent or shall fail to furnish the Trustee with the name and address thereof, such presentations, surrenders, notices
and demands may be made or served at the Corporate Trust Office of the Trustee, and the Company hereby appoints the Trustee as its agent
to receive all such presentations, surrenders, notices and demands; <U>provided</U>, <U>however</U>, that any appointment of the Trustee
as the Notice Agent shall exclude the appointment of the Trustee or any office of the Trustee as an agent to receive the service of legal
process on the Company.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company may also from time to time designate one or more co-registrars, additional paying agents or additional notice agents and may
from time to time rescind such designations; <U>provided</U>, <U>however</U>, that no such designation or rescission shall in any manner
relieve the Company of its obligations to maintain a Registrar, Paying Agent and Notice Agent in each place so specified pursuant to
Section 2.2 for Securities of any Series for such purposes. The Company will give prompt written notice to the Trustee of any such designation
or rescission and of any change in the name or address of any such co-registrar, additional paying agent or additional notice agent.
The term &ldquo;<I>Registrar</I>&rdquo; includes any co-registrar; the term &ldquo;<I>Paying Agent</I>&rdquo; includes any additional
paying agent; and the term &ldquo;<I>Notice Agent</I>&rdquo; includes any additional notice agent. The Company or any of its Affiliates
may serve as Registrar or Paying Agent.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company hereby appoints the Trustee the initial Registrar, Paying Agent and Notice Agent for each Series unless another Registrar, Paying
Agent or Notice Agent, as the case may be, is appointed prior to the time Securities of that Series are first issued.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
2.5 <U>Paying Agent to Hold Money in Trust</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company shall require each Paying Agent other than the Trustee to agree in writing that the Paying Agent will hold in trust, for the
benefit of Securityholders of any Series of Securities, or the Trustee, all money held by the Paying Agent for the payment of principal
of or interest on the Series of Securities, and will notify the Trustee in writing of any default by the Company in making any such payment.
While any such default continues, the Trustee may require a Paying Agent to pay all money held by it to the Trustee. The Company at any
time may require a Paying Agent to pay all money held by it to the Trustee. Upon payment over to the Trustee, the Paying Agent (if other
than the Company or a Subsidiary of the Company) shall have no further liability for the money. If the Company or a Subsidiary of the
Company acts as Paying Agent, it shall segregate and hold in a separate trust fund for the benefit of Securityholders of any Series of
Securities all money held by it as Paying Agent. Upon any bankruptcy, reorganization or similar proceeding with respect to the Company,
the Trustee shall serve as Paying Agent for the Securities.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
2.6 <U>Securityholder Lists</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Trustee shall preserve in as current a form as is reasonably practicable the most recent list available to it of the names and addresses
of Securityholders of each Series of Securities and shall otherwise comply with TIA &sect; 312(a). If the Trustee is not the Registrar,
the Company shall furnish to the Trustee at least ten days before each interest payment date and at such other times as the Trustee may
request in writing a list, in such form and as of such date as the Trustee may reasonably require, of the names and addresses of Securityholders
of each Series of Securities.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
2.7 <U>Transfer and Exchange</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Where
Securities of a Series are presented to the Registrar or a co-registrar with a request to register a transfer or to exchange them for
an equal principal amount of Securities of the same Series, the Registrar shall register the transfer or make the exchange if its requirements
for such transactions are met. To permit registrations of transfers and exchanges, the Trustee shall authenticate Securities at the Registrar&rsquo;s
request. No service charge shall be made for any registration of transfer or exchange (except as otherwise expressly permitted herein),
but the Company may require payment of a sum sufficient to cover any transfer tax or similar governmental charge payable in connection
therewith (other than any such transfer tax or similar governmental charge payable upon exchanges pursuant to Sections 2.11, 3.6 or 9.6).</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Neither
the Company nor the Registrar shall be required (a) to issue, register the transfer of, or exchange Securities of any Series for the
period beginning at the opening of business fifteen days immediately preceding the sending of a notice of redemption of Securities of
that Series selected for redemption and ending at the close of business on the day such notice is sent, or (b) to register the transfer
of or exchange Securities of any Series selected, called or being called for redemption as a whole or the portion being redeemed of any
such Securities selected, called or being called for redemption in part.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
2.8 <U>Mutilated, Destroyed, Lost and Stolen Securities</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">If
any mutilated Security is surrendered to the Trustee, the Company shall execute and the Trustee shall authenticate and deliver in exchange
therefor a new Security of the same Series and of like tenor and principal amount and bearing a number not contemporaneously outstanding.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">If
there shall be delivered to the Company and the Trustee (i) evidence to their satisfaction of the destruction, loss or theft of any Security
and (ii) such security or indemnity bond as may be required by each of them to hold itself and any of its agents harmless, then, in the
absence of notice to the Company or the Trustee that such Security has been acquired by a bona fide purchaser, the Company shall execute
and upon receipt of a Company Order the Trustee shall authenticate and make available for delivery, in lieu of any such destroyed, lost
or stolen Security, a new Security of the same Series and of like tenor and principal amount and bearing a number not contemporaneously
outstanding.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">In
case any such mutilated, destroyed, lost or stolen Security has become or is about to become due and payable, the Company in its discretion
may, instead of issuing a new Security, pay such Security.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Upon
the issuance of any new Security under this Section, the Company may require the payment of a sum sufficient to cover any tax or other
governmental charge that may be imposed in relation thereto and any other expenses (including the fees and expenses of the Trustee) connected
therewith.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Every
new Security of any Series issued pursuant to this Section in lieu of any destroyed, lost or stolen Security shall constitute an original
additional contractual obligation of the Company, whether or not the destroyed, lost or stolen Security shall be at any time enforceable
by anyone, and shall be entitled to all the benefits of this Indenture equally and proportionately with any and all other Securities
of that Series duly issued hereunder.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
provisions of this Section are exclusive and shall preclude (to the extent lawful) all other rights and remedies with respect to the
replacement or payment of mutilated, destroyed, lost or stolen Securities.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
2.9 <U>Outstanding Securities</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Securities outstanding at any time are all the Securities authenticated by the Trustee except for those canceled by it, those delivered
to it for cancellation, those reductions in the interest on a Global Security effected by the Trustee in accordance with the provisions
hereof and those described in this Section as not outstanding.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">If
a Security is replaced pursuant to Section 2.8, it ceases to be outstanding until the Trustee receives proof satisfactory to it that
the replaced Security is held by a bona fide purchaser.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">If
the Paying Agent (other than the Company, a Subsidiary of the Company or an Affiliate of the Company) holds on the Maturity of Securities
of a Series money sufficient to pay such Securities payable on that date, then on and after that date such Securities of the Series cease
to be outstanding and interest on them ceases to accrue.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company may purchase or otherwise acquire the Securities, whether by open market purchases, negotiated transactions or otherwise. A Security
does not cease to be outstanding because the Company or an Affiliate of the Company holds the Security (but see Section 2.10 below).</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">In
determining whether the Holders of the requisite principal amount of outstanding Securities have given any request, demand, authorization,
direction, notice, consent or waiver hereunder, the principal amount of a Discount Security that shall be deemed to be outstanding for
such purposes shall be the amount of the principal thereof that would be due and payable as of the date of such determination upon a
declaration of acceleration of the Maturity thereof pursuant to Section 6.2.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
2.10 <U>Treasury Securities</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">In
determining whether the Holders of the required principal amount of Securities of a Series have concurred in any request, demand, authorization,
direction, notice, consent or waiver, Securities of a Series owned by the Company or any Affiliate of the Company shall be disregarded,
except that for the purposes of determining whether the Trustee shall be protected in relying on any such request, demand, authorization,
direction, notice, consent or waiver only Securities of a Series that a Responsible Officer of the Trustee knows are so owned shall be
so disregarded.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
2.11 <U>Temporary Securities</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Until
definitive Securities are ready for delivery, the Company may prepare and the Trustee shall authenticate temporary Securities upon a
Company Order. Temporary Securities shall be substantially in the form of definitive Securities but may have variations that the Company
considers appropriate for temporary Securities. Without unreasonable delay, the Company shall prepare and the Trustee upon receipt of
a Company Order shall authenticate definitive Securities of the same Series and date of maturity in exchange for temporary Securities.
Until so exchanged, temporary securities shall have the same rights under this Indenture as the definitive Securities.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
2.12 <U>Cancellation</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company at any time may deliver Securities to the Trustee for cancellation. The Registrar and the Paying Agent shall forward to the Trustee
any Securities surrendered to them for registration of transfer, exchange or payment. The Trustee shall cancel all Securities surrendered
for transfer, exchange, payment, replacement or cancellation and shall destroy such canceled Securities (subject to the record retention
requirement of the Exchange Act and the Trustee) and deliver a certificate of such cancellation to the Company upon written request of
the Company. The Company may not issue new Securities to replace Securities that it has paid or delivered to the Trustee for cancellation.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
2.13 <U>Defaulted Interest</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">If
the Company defaults in a payment of interest on a Series of Securities, it shall pay the defaulted interest, plus, to the extent permitted
by law, any interest payable on the defaulted interest, to the persons who are Securityholders of the Series on a subsequent special
record date. The Company shall fix the record date and payment date. At least 10 days before the special record date, the Company shall
send to the Trustee and to each Securityholder of the Series a notice that states the special record date, the payment date and the amount
of interest to be paid. The Company may pay defaulted interest in any other lawful manner.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
2.14 <U>Global Securities</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">2.14.1
<U>Terms of Securities</U>. A Board Resolution, a supplemental indenture hereto or an Officer&rsquo;s Certificate shall establish whether
the Securities of a Series shall be issued in whole or in part in the form of one or more Global Securities and the Depositary for such
Global Security or Securities.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="text-align: justify; font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">2.14.2
<U>Transfer and Exchange</U>. Notwithstanding any provisions to the contrary contained in Section 2.7 of this Indenture and in addition
thereto, any Global Security shall be exchangeable pursuant to Section 2.7 of this Indenture for Securities registered in the names of
Holders other than the Depositary for such Security or its nominee only if (i) such Depositary notifies the Company that it is unwilling
or unable to continue as Depositary for such Global Security or if at any time such Depositary ceases to be a clearing agency registered
under the Exchange Act, and, in either case, the Company fails to appoint a successor Depositary registered as a clearing agency under
the Exchange Act within 90 days of such event or (ii) the Company executes and delivers to the Trustee an Officer&rsquo;s Certificate
to the effect that such Global Security shall be so exchangeable. Any Global Security that is exchangeable pursuant to the preceding
sentence shall be exchangeable for Securities registered in such names as the Depositary shall direct in writing in an aggregate principal
amount equal to the principal amount of the Global Security with like tenor and terms.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Except
as provided in this Section 2.14.2, a Global Security may not be transferred except as a whole by the Depositary with respect to such
Global Security to a nominee of such Depositary, by a nominee of such Depositary to such Depositary or another nominee of such Depositary
or by the Depositary or any such nominee to a successor Depositary or a nominee of such a successor Depositary.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">2.14.3
<U>Legends</U>. Any Global Security issued hereunder shall bear a legend in substantially the following form:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&ldquo;THIS
SECURITY IS A GLOBAL SECURITY WITHIN THE MEANING OF THE INDENTURE HEREINAFTER REFERRED TO AND IS REGISTERED IN THE NAME OF THE DEPOSITARY
OR A NOMINEE OF THE DEPOSITARY. THIS SECURITY IS EXCHANGEABLE FOR SECURITIES REGISTERED IN THE NAME OF A PERSON OTHER THAN THE DEPOSITARY
OR ITS NOMINEE ONLY IN THE LIMITED CIRCUMSTANCES DESCRIBED IN THE INDENTURE, AND MAY NOT BE TRANSFERRED EXCEPT AS A WHOLE BY THE DEPOSITARY
TO A NOMINEE OF THE DEPOSITARY, BY A NOMINEE OF THE DEPOSITARY TO THE DEPOSITARY OR ANOTHER NOMINEE OF THE DEPOSITARY OR BY THE DEPOSITARY
OR ANY SUCH NOMINEE TO A SUCCESSOR DEPOSITARY OR A NOMINEE OF SUCH A SUCCESSOR DEPOSITARY.&rdquo;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">In
addition, so long as the Depository Trust Company (&ldquo;DTC&rdquo;) is the Depositary, each Global Security registered in the name
of DTC or its nominee shall bear a legend in substantially the following form:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&ldquo;UNLESS
THIS GLOBAL SECURITY IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION (&ldquo;DTC&rdquo;),
TO THE COMPANY OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY GLOBAL SECURITY ISSUED IS REGISTERED IN THE NAME
OF CEDE &amp; CO. OR IN SUCH OTHER NAME AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND ANY PAYMENT IS MADE TO CEDE &amp;
CO. OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE
OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER HEREOF, CEDE &amp; CO., HAS AN INTEREST HEREIN.&rdquo;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">2.14.4
<U>Acts of Holders</U>. The Depositary, as a Holder, may appoint agents and otherwise authorize participants to give or take any request,
demand, authorization, direction, notice, consent, waiver or other action which a Holder is entitled to give or take under this Indenture.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">2.14.5
<U>Payments</U>. Notwithstanding the other provisions of this Indenture, unless otherwise specified as contemplated by Section 2.2, payment
of the principal of and interest, if any, on any Global Security shall be made to the Holder thereof.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">2.14.6
<U>Consents, Declaration and Directions</U>. The Company, the Trustee and any Agent shall treat a person as the Holder of such principal
amount of outstanding Securities of such Series represented by a Global Security as shall be specified in a written statement of the
Depositary or by the applicable procedures of such Depositary with respect to such Global Security, for purposes of obtaining any consents,
declarations, waivers or directions required to be given by the Holders pursuant to this Indenture.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
2.15 <U>CUSIP Numbers</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company in issuing the Securities may use &ldquo;CUSIP&rdquo; numbers (if then generally in use), and, if so, the Trustee shall use &ldquo;CUSIP&rdquo;
numbers in notices of redemption as a convenience to Holders; <U>provided</U> that any such notice may state that no representation is
made as to the correctness of such numbers either as printed on the Securities or as contained in any notice of a redemption and that
reliance may be placed only on the other elements of identification printed on the Securities, and any such redemption shall not be affected
by any defect in or omission of such numbers.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">ARTICLE
III<BR>
REDEMPTION</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
3.1 <U>Notice to Trustee</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company may, with respect to any Series of Securities, reserve the right to redeem and pay the Series of Securities or may covenant to
redeem and pay the Series of Securities or any part thereof prior to the Stated Maturity thereof at such time and on such terms as provided
for in such Securities. If a Series of Securities is redeemable and the Company wants or is obligated to redeem prior to the Stated Maturity
thereof all or part of the Series of Securities pursuant to the terms of such Securities, it shall notify the Trustee in writing of the
redemption date and the principal amount of Series of Securities to be redeemed. The Company shall give the notice at least 15 days before
the redemption date, unless a shorter period is satisfactory to the Trustee.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
3.2 <U>Selection of Securities to be Redeemed</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Unless
otherwise indicated for a particular Series by a Board Resolution, a supplemental indenture hereto or an Officer&rsquo;s Certificate,
if less than all the Securities of a Series are to be redeemed, the Securities of the Series to be redeemed will be selected as follows:
(a) if the Securities are in the form of Global Securities, in accordance with the procedures of the Depositary, (b) if the Securities
are listed on any national securities exchange, in compliance with the requirements of the principal national securities exchange, if
any, on which the Securities are listed, or (c) if not otherwise provided for under clause (a) or (b) in the manner that the Trustee
deems fair and appropriate, including by lot or other method, unless otherwise required by law or applicable stock exchange requirements,
subject, in the case of Global Securities, to the applicable rules and procedures of the Depositary. The Securities to be redeemed shall
be selected from Securities of the Series outstanding not previously called for redemption. Portions of the principal of Securities of
the Series that have denominations larger than $1,000 may be selected for redemption. Securities of the Series and portions of them it
selected for redemption shall be in amounts of $1,000 or whole multiples of $1,000 or, with respect to Securities of any Series issuable
in other denominations pursuant to Section 2.2.10, the minimum principal denomination for each Series and the authorized integral multiples
thereof. Provisions of this Indenture that apply to Securities of a Series called for redemption also apply to portions of Securities
of that Series called for redemption.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
3.3 <U>Notice of Redemption</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Unless
otherwise indicated for a particular Series by Board Resolution, a supplemental indenture hereto or an Officer&rsquo;s Certificate, at
least 15 days but not more than 60 days before a redemption date, the Company shall send or cause to be sent by first-class mail or electronically,
in accordance with the procedures of the Depositary, a notice of redemption to each Holder whose Securities are to be redeemed.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
notice shall identify the Securities of the Series to be redeemed and shall state:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(a)
the redemption date;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(b)
the redemption price;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(c)
the name and address of the Paying Agent;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(d)
if any Securities are being redeemed in part, the portion of the principal amount of such Securities to be redeemed and that, after the
redemption date and upon surrender of such Security, a new Security or Securities in principal amount equal to the unredeemed portion
of the original Security shall be issued in the name of the Holder thereof upon cancellation of the original Security;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(e)
that Securities of the Series called for redemption must be surrendered to the Paying Agent to collect the redemption price;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(f)
that interest on Securities of the Series called for redemption ceases to accrue on and after the redemption date unless the Company
defaults in the deposit of the redemption price;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(g)
the CUSIP number, if any; and</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(h)
any other information as may be required by the terms of the particular Series or the Securities of a Series being redeemed.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">At
the Company&rsquo;s request, the Trustee shall give the notice of redemption in the Company&rsquo;s name and at its expense, provided,
however, that the Company has delivered to the Trustee, at least 10 days (unless a shorter time shall be acceptable to the Trustee) prior
to the notice date, an Officer&rsquo;s Certificate requesting that the Trustee give such notice and setting forth the information to
be stated in such notice.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
3.4 <U>Effect of Notice of Redemption</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Once
notice of redemption is sent as provided in Section 3.3, Securities of a Series called for redemption become due and payable on the redemption
date and at the redemption price. Except as otherwise provided in the supplemental indenture hereto, Board Resolution or Officer&rsquo;s
Certificate for a Series of Securities, a notice of redemption pertaining to such Series may not be conditional. Upon surrender to the
Paying Agent, such Securities shall be paid at the redemption price plus accrued interest to the redemption date.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
3.5 <U>Deposit of Redemption Price</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">On
or before 11:00 a.m., New York City time, on the redemption date, the Company shall deposit with the Paying Agent money sufficient to
pay the redemption price of and accrued interest, if any, on all Securities to be redeemed on that date.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
3.6 <U>Securities Redeemed in Part</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Upon
surrender of a Security that is redeemed in part, the Trustee shall authenticate for the Holder a new Security of the same Series and
the same maturity equal in principal amount to the unredeemed portion of the Security surrendered.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">ARTICLE
IV<BR>
COVENANTS</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
4.1 <U>Payment of Principal and Interest</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company covenants and agrees for the benefit of the Holders of each Series of Securities that it will duly and punctually pay the principal
of and interest, if any, on the Securities of that Series in accordance with the terms of such Securities and this Indenture. On or before
11:00 a.m., New York City time, on the applicable payment date, the Company shall deposit with the Paying Agent money sufficient to pay
the principal of and interest, if any, on the Securities of each Series in accordance with the terms of such Securities and this Indenture.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
4.2 <U>SEC Reports</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">To
the extent any Securities of a Series are outstanding, the Company shall deliver to the Trustee within 15 days after it files them with
the SEC copies of the annual reports and of the information, documents, and other reports (or copies of such portions of any of the foregoing
as the SEC may by rules and regulations prescribe) which the Company is required to file with the SEC pursuant to Section 13 or 15(d)
of the Exchange Act. The Company also shall comply with the other provisions of TIA &sect; 314(a). Reports, information and documents
filed with the SEC via the EDGAR system will be deemed to be delivered to the Trustee as of the time of such filing via EDGAR for purposes
of this Section 4.2.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Delivery
of reports, information and documents to the Trustee under this Section 4.2 are for informational purposes only and the Trustee&rsquo;s
receipt of the foregoing shall not constitute constructive or actual notice of any information contained therein or determinable from
information contained therein, including the Company&rsquo;s compliance with any of their covenants hereunder (as to which the Trustee
is entitled to rely exclusively on Officer&rsquo;s Certificates).</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
4.3 <U>Compliance Certificate</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">To
the extent any Securities of a Series are outstanding, the Company shall deliver to the Trustee, within 120 days after the end of each
fiscal year of the Company, an Officer&rsquo;s Certificate stating that a review of the activities of the Company and its Subsidiaries
during the preceding fiscal year has been made under the supervision of the signing Officers with a view to determining whether the Company
has kept, observed, performed and fulfilled its obligations under this Indenture, and further stating, as to each such Officer signing
such certificate, that to the best of his/her knowledge the Company has kept, observed, performed and fulfilled each and every covenant
contained in this Indenture and is not in default in the performance or observance of any of the terms, provisions and conditions hereof
(or, if a Default or Event of Default shall have occurred, describing all such Defaults or Events of Default of which the Officer may
have knowledge).</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
4.4 <U>Stay, Extension and Usury Laws</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company covenants (to the extent that it may lawfully do so) that it will not at any time insist upon, plead, or in any manner whatsoever
claim or take the benefit or advantage of, any stay, extension or usury law wherever enacted, now or at any time hereafter in force,
which may affect the covenants or the performance of this Indenture or the Securities; and the Company (to the extent it may lawfully
do so) hereby expressly waives all benefit or advantage of any such law and covenants that it will not, by resort to any such law, hinder,
delay or impede the execution of any power herein granted to the Trustee, but will suffer and permit the execution of every such power
as though no such law has been enacted.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">ARTICLE
V<BR>
SUCCESSORS</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
5.1 <U>When Company May Merge, Etc</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company shall not consolidate with or merge with or into, or convey, transfer or lease all or substantially all of its properties and
assets to, any person (a &ldquo;<I>successor person</I>&rdquo;) unless:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(a)
the Company is the surviving corporation or the successor person (if other than the Company) is a corporation organized and validly existing
under the laws of any U.S. domestic jurisdiction and expressly assumes the Company&rsquo;s obligations on the Securities and under this
Indenture; and</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(b)
immediately after giving effect to the transaction, no Default or Event of Default, shall have occurred and be continuing.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company shall deliver to the Trustee prior to the consummation of the proposed transaction an Officer&rsquo;s Certificate to the foregoing
effect and an Opinion of Counsel stating that the proposed transaction and any supplemental indenture hereto comply with this Indenture.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Notwithstanding
the above, any Subsidiary of the Company may consolidate with, merge into or transfer all or part of its properties to the Company. Neither
an Officer&rsquo;s Certificate nor an Opinion of Counsel shall be required to be delivered in connection therewith.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
5.2 <U>Successor Corporation Substituted</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Upon
any consolidation or merger, or any sale, lease, conveyance or other disposition of all or substantially all of the assets of the Company
in accordance with Section 5.1, the successor corporation formed by such consolidation or into or with which the Company is merged or
to which such sale, lease, conveyance or other disposition is made shall succeed to, and be substituted for, and may exercise every right
and power of, the Company under this Indenture with the same effect as if such successor person has been named as the Company herein;
<U>provided</U>, <U>however</U>, that the predecessor Company in the case of a sale, conveyance or other disposition (other than a lease)
shall be released from all obligations and covenants under this Indenture and the Securities.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">ARTICLE
VI<BR>
DEFAULTS AND REMEDIES</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
6.1 <U>Events of Default</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&ldquo;<I>Event
of Default</I>,&rdquo; wherever used herein with respect to Securities of any Series, means any one of the following events, unless in
the establishing Board Resolution, supplemental indenture hereto or Officer&rsquo;s Certificate, it is provided that such Series shall
not have the benefit of said Event of Default:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(a)
default in the payment of any interest on any Security of that Series when it becomes due and payable, and continuance of such default
for a period of 30 days (unless the entire amount of such payment is deposited by the Company with the Trustee or with a Paying Agent
prior to 11:00 a.m., New York City time, on the 30<SUP>th</SUP> day of such period); or</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(b)
default in the payment of principal of any Security of that Series at its Maturity; or</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(c)
default in the performance or breach of any covenant or warranty of the Company in this Indenture (other than defaults pursuant to paragraphs
(a) or (b) above or pursuant to a covenant or warranty that has been included in this Indenture solely for the benefit of Series of Securities
other than that Series), which default continues uncured for a period of 60 days after there has been given, by registered or certified
mail, to the Company by the Trustee or to the Company and the Trustee by the Holders of at least 25% in principal amount of the outstanding
Securities of that Series a written notice specifying such default or breach and requiring it to be remedied and stating that such notice
is a &ldquo;Notice of Default&rdquo; hereunder; or</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(d)
the Company pursuant to or within the meaning of any Bankruptcy Law:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(i)
commences a voluntary case,</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(ii)
consents to the entry of an order for relief against it in an involuntary case,</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(iii)
consents to the appointment of a Custodian of it or for all or substantially all of its property,</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(iv)
makes a general assignment for the benefit of its creditors, or</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(v)
generally is unable to pay its debts as the same become due; or</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(e)
a court of competent jurisdiction enters an order or decree under any Bankruptcy Law that:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(i)
is for relief against the Company in an involuntary case,</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(ii)
appoints a Custodian of the Company or for all or substantially all of its property, or</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(iii)
orders the liquidation of the Company, and the order or decree remains unstayed and in effect for 60 days; or</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(f)
any other Event of Default provided with respect to Securities of that Series, which is specified in a Board Resolution, a supplemental
indenture hereto or an Officer&rsquo;s Certificate, in accordance with Section 2.2.18.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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    <DIV STYLE="break-before: page; margin-top: 6pt"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
term &ldquo;<I>Bankruptcy Law</I>&rdquo; means title 11, U.S. Code or any similar Federal or State law for the relief of debtors. The
term &ldquo;<I>Custodian</I>&rdquo; means any receiver, trustee, assignee, liquidator or similar official under any Bankruptcy Law. The
Company will provide the Trustee written notice of any Default or Event of Default within 30 days of becoming aware of the occurrence
of such Default or Event of Default, which notice will describe in reasonable detail the status of such Default or Event of Default and
what action the Company is taking or proposes to take in respect thereof.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
6.2 <U>Acceleration of Maturity; Rescission and Annulment</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">If
an Event of Default with respect to Securities of any Series at the time outstanding occurs and is continuing (other than an Event of
Default referred to in Section 6.1(d) or (e)) then in every such case the Trustee or the Holders of not less than 25% in principal amount
of the outstanding Securities of that Series may declare the principal amount (or, if any Securities of that Series are Discount Securities,
such portion of the principal amount as may be specified in the terms of such Securities) of and accrued and unpaid interest, if any,
on all of the Securities of that Series to be due and payable immediately, by a notice in writing to the Company (and to the Trustee
if given by Holders), and upon any such declaration such principal amount (or specified amount) and accrued and unpaid interest, if any,
shall become immediately due and payable. If an Event of Default specified in Section 6.1(d) or (e) shall occur, the principal amount
(or specified amount) of and accrued and unpaid interest, if any, on all outstanding Securities shall <I>ipso facto</I> become and be
immediately due and payable without any declaration or other act on the part of the Trustee or any Holder.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">At
any time after such a declaration of acceleration with respect to any Series has been made and before a judgment or decree for payment
of the money due has been obtained by the Trustee as hereinafter in this Article provided, the Holders of a majority in principal amount
of the outstanding Securities of that Series, by written notice to the Company and the Trustee, may rescind and annul such declaration
and its consequences if all Events of Default with respect to Securities of that Series, other than the non-payment of the principal
and interest, if any, of Securities of that Series which have become due solely by such declaration of acceleration, have been cured
or waived as provided in Section 6.13.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">No
such rescission shall affect any subsequent Default or impair any right consequent thereon.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
6.3 <U>Collection of Indebtedness and Suits for Enforcement by Trustee</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company covenants that if</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(a)
default is made in the payment of any interest on any Security when such interest becomes due and payable and such default continues
for a period of 30 days, or</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(b)
default is made in the payment of principal of any Security at the Maturity thereof, or</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(c)
default is made in the deposit of any sinking fund payment, if any, when and as due by the terms of a Security,</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>then,
</I>the Company will, upon demand of the Trustee, pay to it, for the benefit of the Holders of such Securities, the whole amount then
due and payable on such Securities for principal and interest and, to the extent that payment of such interest shall be legally enforceable,
interest on any overdue principal and any overdue interest at the rate or rates prescribed therefor in such Securities, and, in addition
thereto, such further amount as shall be sufficient to cover the costs and expenses of collection, including the compensation, reasonable
expenses, disbursements and advances of the Trustee, its agents and counsel.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">If
the Company fails to pay such amounts forthwith upon such demand, the Trustee, in its own name and as trustee of an express trust, may
institute a judicial proceeding for the collection of the sums so due and unpaid, may prosecute such proceeding to judgment or final
decree and may enforce the same against the Company or any other obligor upon such Securities and collect the moneys adjudged or deemed
to be payable in the manner provided by law out of the property of the Company or any other obligor upon such Securities, wherever situated.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">If
an Event of Default with respect to any Securities of any Series occurs and is continuing, the Trustee may in its discretion proceed
to protect and enforce its rights and the rights of the Holders of Securities of such Series by such appropriate judicial proceedings
as the Trustee shall deem most effectual to protect and enforce any such rights, whether for the specific enforcement of any covenant
or agreement in this Indenture or in aid of the exercise of any power granted herein, or to enforce any other proper remedy.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
6.4 <U>Trustee May File Proofs of Claim</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">In
case of the pendency of any receivership, insolvency, liquidation, bankruptcy, reorganization, arrangement, adjustment, composition or
other judicial proceeding relative to the Company or any other obligor upon the Securities or the property of the Company or of such
other obligor or their creditors, the Trustee (irrespective of whether the principal of the Securities shall then be due and payable
as therein expressed or by declaration or otherwise and irrespective of whether the Trustee shall have made any demand on the Company
for the payment of overdue principal or interest) shall be entitled and empowered, by intervention in such proceeding or otherwise,</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(a)
to file and prove a claim for the whole amount of principal and interest owing and unpaid in respect of the Securities and to file such
other papers or documents as may be necessary or advisable in order to have the claims of the Trustee (including any claim for the compensation,
reasonable expenses, disbursements and advances of the Trustee, its agents and counsel) and of the Holders allowed in such judicial proceeding,
and</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(b)
to collect and receive any moneys or other property payable or deliverable on any such claims and to distribute the same, and any custodian,
receiver, assignee, trustee, liquidator, sequestrator or other similar official in any such judicial proceeding is hereby authorized
by each Holder to make such payments to the Trustee and, in the event that the Trustee shall consent to the making of such payments directly
to the Holders, to pay to the Trustee any amount due it for the compensation, reasonable expenses, disbursements and advances of the
Trustee, its agents and counsel, and any other amounts due the Trustee under Section 7.7.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Nothing
herein contained shall be deemed to authorize the Trustee to authorize or consent to or accept or adopt on behalf of any Holder any plan
of reorganization, arrangement, adjustment or composition affecting the Securities or the rights of any Holder thereof or to authorize
the Trustee to vote in respect of the claim of any Holder in any such proceeding.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
6.5 <U>Trustee May Enforce Claims Without Possession of Securities</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">All
rights of action and claims under this Indenture or the Securities may be prosecuted and enforced by the Trustee without the possession
of any of the Securities or the production thereof in any proceeding relating thereto, and any such proceeding instituted by the Trustee
shall be brought in its own name as trustee of an express trust, and any recovery of judgment shall, after provision for the payment
of the compensation, reasonable expenses, disbursements and advances of the Trustee, its agents and counsel, be for the ratable benefit
of the Holders of the Securities in respect of which such judgment has been recovered.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
6.6 <U>Application of Money Collected</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Any
money or property collected by the Trustee pursuant to this Article shall be applied in the following order, at the date or dates fixed
by the Trustee and, in case of the distribution of such money or property on account of principal or interest, upon presentation of the
Securities and the notation thereon of the payment if only partially paid and upon surrender thereof if fully paid:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">First:
To the payment of all amounts due the Trustee under Section 7.7; and</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Second:
To the payment of the amounts then due and unpaid for principal of and interest on the Securities in respect of which or for the benefit
of which such money has been collected, ratably, without preference or priority of any kind, according to the amounts due and payable
on such Securities for principal and interest, respectively; and</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Third:
To the Company.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
6.7 <U>Limitation on Suits</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">No
Holder of any Security of any Series shall have any right to institute any proceeding, judicial or otherwise, with respect to this Indenture,
or for the appointment of a receiver or trustee, or for any other remedy hereunder, unless</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(a)
such Holder has previously given written notice to the Trustee of a continuing Event of Default with respect to the Securities of that
Series;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(b)
the Holders of not less than 25% in principal amount of the outstanding Securities of that Series shall have made written request to
the Trustee to institute proceedings in respect of such Event of Default in its own name as Trustee hereunder;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(c)
such Holder or Holders have offered to the Trustee indemnity or security satisfactory to the Trustee against the costs, expenses and
liabilities which might be incurred by the Trustee in compliance with such request;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(d)
the Trustee for 60 days after its receipt of such notice, request and offer of indemnity has failed to institute any such proceeding;
and</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(e)
no direction inconsistent with such written request has been given to the Trustee during such 60-day period by the Holders of a majority
in principal amount of the outstanding Securities of that Series;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">it
being understood, intended and expressly covenanted by the Holder of every Security with every other Holder and the Trustee that no one
or more of such Holders shall have any right in any manner whatever by virtue of, or by availing of, any provision of this Indenture
to affect, disturb or prejudice the rights of any other of such Holders, or to obtain or to seek to obtain priority or preference over
any other of such Holders or to enforce any right under this Indenture, except in the manner herein provided and for the equal and ratable
benefit of all such Holders of the applicable Series.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
6.8 <U>Unconditional Right of Holders to Receive Principal and Interest</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Notwithstanding
any other provision in this Indenture, the Holder of any Security shall have the right, which is absolute and unconditional, to receive
payment of the principal of and interest, if any, on such Security on the Maturity of such Security, including the Stated Maturity expressed
in such Security (or, in the case of redemption, on the redemption date) and to institute suit for the enforcement of any such payment,
and such rights shall not be impaired without the consent of such Holder.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
6.9 <U>Restoration of Rights and Remedies</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">If
the Trustee or any Holder has instituted any proceeding to enforce any right or remedy under this Indenture and such proceeding has been
discontinued or abandoned for any reason, or has been determined adversely to the Trustee or to such Holder, then and in every such case,
subject to any determination in such proceeding, the Company, the Trustee and the Holders shall be restored severally and respectively
to their former positions hereunder and thereafter all rights and remedies of the Trustee and the Holders shall continue as though no
such proceeding had been instituted.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
6.10 <U>Rights and Remedies Cumulative</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Except
as otherwise provided with respect to the replacement or payment of mutilated, destroyed, lost or stolen Securities in Section 2.8, no
right or remedy herein conferred upon or reserved to the Trustee or to the Holders is intended to be exclusive of any other right or
remedy, and every right and remedy shall, to the extent permitted by law, be cumulative and in addition to every other right and remedy
given hereunder or now or hereafter existing at law or in equity or otherwise. The assertion or employment of any right or remedy hereunder,
or otherwise, shall not, to the extent permitted by law, prevent the concurrent assertion or employment of any other appropriate right
or remedy.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
6.11 <U>Delay or Omission Not Waiver</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">No
delay or omission of the Trustee or of any Holder of any Securities to exercise any right or remedy accruing upon any Event of Default
shall impair any such right or remedy or constitute a waiver of any such Event of Default or an acquiescence therein. Every right and
remedy given by this Article or by law to the Trustee or to the Holders may be exercised from time to time, and as often as may be deemed
expedient, by the Trustee or by the Holders, as the case may be.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
6.12 <U>Control by Holders</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Holders of a majority in principal amount of the outstanding Securities of any Series shall have the right to direct the time, method
and place of conducting any proceeding for any remedy available to the Trustee, or exercising any trust or power conferred on the Trustee,
with respect to the Securities of such Series, provided that</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(a)
such direction shall not be in conflict with any rule of law or with this Indenture,</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(b)
the Trustee may take any other action deemed proper by the Trustee which is not inconsistent with such direction,</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(c)
subject to the provisions of Section 7.1, the Trustee shall have the right to decline to follow any such direction if the Trustee in
good faith shall, by a Responsible Officer of the Trustee, determine that the proceeding so directed would involve the Trustee in personal
liability, and</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(d)
prior to taking any action as directed under this Section 6.12, the Trustee shall be entitled to indemnity satisfactory to it against
the costs, expenses and liabilities which might be incurred by it in compliance with such request or direction.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
6.13 <U>Waiver of Past Defaults</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Holders of not less than a majority in principal amount of the outstanding Securities of any Series may on behalf of the Holders of all
the Securities of such Series, by written notice to the Trustee and the Company, waive any past Default hereunder with respect to such
Series and its consequences, except a Default in the payment of the principal of or interest on any Security of such Series (provided,
however, that the Holders of a majority in principal amount of the outstanding Securities of any Series may rescind an acceleration and
its consequences, including any related payment default that resulted from such acceleration). Upon any such waiver, such Default shall
cease to exist, and any Event of Default arising therefrom shall be deemed to have been cured, for every purpose of this Indenture; but
no such waiver shall extend to any subsequent or other Default or impair any right consequent thereon.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
6.14 <U>Undertaking for Costs</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">All
parties to this Indenture agree, and each Holder of any Security by his acceptance thereof shall be deemed to have agreed, that any court
may in its discretion require, in any suit for the enforcement of any right or remedy under this Indenture, or in any suit against the
Trustee for any action taken, suffered or omitted by it as Trustee, the filing by any party litigant in such suit of an undertaking to
pay the costs of such suit, and that such court may in its discretion assess reasonable costs, including reasonable attorneys&rsquo;
fees, against any party litigant in such suit, having due regard to the merits and good faith of the claims or defenses made by such
party litigant; but the provisions of this Section shall not apply to any suit instituted by the Company, to any suit instituted by the
Trustee, to any suit instituted by any Holder, or group of Holders, holding in the aggregate more than 10% in principal amount of the
outstanding Securities of any Series, or to any suit instituted by any Holder for the enforcement of the payment of the principal of
or interest on any Security on or after the Maturity of such Security, including the Stated Maturity expressed in such Security (or,
in the case of redemption, on the redemption date).</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">ARTICLE
VII<BR>
TRUSTEE</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
7.1 <U>Duties of Trustee</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(a)
If an Event of Default has occurred and is continuing, the Trustee shall exercise the rights and powers vested in it by this Indenture
and use the same degree of care and skill in their exercise as a prudent person would exercise or use under the circumstances in the
conduct of such person&rsquo;s own affairs.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(b)
Except during the continuance of an Event of Default:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(i)
The Trustee need perform only those duties that are specifically set forth in this Indenture and no others.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(ii)
In the absence of bad faith on its part, the Trustee may conclusively rely, as to the truth of the statements and the correctness of
the opinions expressed therein, upon Officer&rsquo;s Certificates or Opinions of Counsel furnished to the Trustee and conforming to the
requirements of this Indenture; <U>however</U>, in the case of any such Officer&rsquo;s Certificates or Opinions of Counsel which by
any provisions hereof are specifically required to be furnished to the Trustee, the Trustee shall examine such Officer&rsquo;s Certificates
and Opinions of Counsel to determine whether or not they conform to the form requirements of this Indenture.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(c)
The Trustee may not be relieved from liability for its own negligent action, its own negligent failure to act or its own willful misconduct,
except that:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(i)
This paragraph does not limit the effect of paragraph (b) of this Section.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(ii)
The Trustee shall not be liable for any error of judgment made in good faith by a Responsible Officer, unless it is proved that the Trustee
was negligent in ascertaining the pertinent facts.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(iii)
The Trustee shall not be liable with respect to any action taken, suffered or omitted to be taken by it with respect to Securities of
any Series in good faith in accordance with the direction of the Holders of a majority in principal amount of the outstanding Securities
of such Series relating to the time, method and place of conducting any proceeding for any remedy available to the Trustee, or exercising
any trust or power conferred upon the Trustee, under this Indenture with respect to the Securities of such Series in accordance with
Section 6.12.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(d)
Every provision of this Indenture that in any way relates to the Trustee is subject to paragraph (a), (b) and (c) of this Section.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(e)
The Trustee may refuse to perform any duty or exercise any right or power unless it receives indemnity satisfactory to it against the
costs, expenses and liabilities which might be incurred by it in performing such duty or exercising such right or power.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(f)
The Trustee shall not be liable for interest on any money received by it except as the Trustee may agree in writing with the Company.
Money held in trust by the Trustee need not be segregated from other funds except to the extent required by law.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(g)
No provision of this Indenture shall require the Trustee to risk its own funds or otherwise incur any financial liability in the performance
of any of its duties, or in the exercise of any of its rights or powers, if adequate indemnity against such risk is not assured to the
Trustee in its satisfaction.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(h)
The Paying Agent, the Registrar and any authenticating agent shall be entitled to the protections and immunities as are set forth in
paragraphs (e), (f) and (g) of this Section and in Section 7.2, each with respect to the Trustee.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
7.2 <U>Rights of Trustee</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(a)
The Trustee may rely on and shall be protected in acting or refraining from acting upon any document (whether in its original or facsimile
form) believed by it to be genuine and to have been signed or presented by the proper person. The Trustee need not investigate any fact
or matter stated in the document.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(b)
Before the Trustee acts or refrains from acting, it may require an Officer&rsquo;s Certificate or an Opinion of Counsel or both. The
Trustee shall not be liable for any action it takes or omits to take in good faith in reliance on such Officer&rsquo;s Certificate or
Opinion of Counsel.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(c)
The Trustee may act through agents and shall not be responsible for the misconduct or negligence of any agent appointed with due care.
No Depositary shall be deemed an agent of the Trustee and the Trustee shall not be responsible for any act or omission by any Depositary.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(d)
The Trustee shall not be liable for any action it takes or omits to take in good faith which it believes to be authorized or within its
rights or powers, provided that the Trustee&rsquo;s conduct does not constitute willful misconduct or negligence.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(e)
The Trustee may consult with counsel and the advice of such counsel or any Opinion of Counsel shall be full and complete authorization
and protection in respect of any action taken, suffered or omitted by it hereunder without willful misconduct or negligence, and in reliance
thereon.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(f)
The Trustee shall be under no obligation to exercise any of the rights or powers vested in it by this Indenture at the request or direction
of any of the Holders of Securities unless such Holders shall have offered to the Trustee security or indemnity satisfactory to it against
the costs, expenses and liabilities which might be incurred by it in compliance with such request or direction.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(g)
The Trustee shall not be bound to make any investigation into the facts or matters stated in any resolution, certificate, statement,
instrument, opinion, report, notice, request, direction, consent, order, bond, debenture, note, other evidence of indebtedness or other
paper or document, but the Trustee, in its discretion, may make such further inquiry or investigation into such facts or matters as it
may see fit.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(h)
The Trustee shall not be deemed to have notice of any Default or Event of Default unless a Responsible Officer of the Trustee has actual
knowledge thereof or unless written notice of any event which is in fact such a default is received by the Trustee at the Corporate Trust
Office of the Trustee, and such notice references the Securities generally or the Securities of a particular Series and this Indenture.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(i)
In no event shall the Trustee be liable to any person for special, punitive, indirect, consequential or incidental loss or damage of
any kind whatsoever (including but not limited to lost profits), even if the Trustee has been advised of the likelihood of such loss
or damage.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(j)
The permissive right of the Trustee to take the actions permitted by this Indenture shall not be construed as an obligation or duty to
do so.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
7.3 <U>Individual Rights of Trustee</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Trustee in its individual or any other capacity may become the owner or pledgee of Securities and may otherwise deal with the Company
or an Affiliate of the Company with the same rights it would have if it were not Trustee. Any Agent may do the same with like rights.
The Trustee is also subject to Sections 7.10 and 7.11.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
7.4 <U>Trustee&rsquo;s Disclaimer</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Trustee makes no representation as to the validity or adequacy of this Indenture or the Securities, it shall not be accountable for the
Company&rsquo;s use of the proceeds from the Securities, and it shall not be responsible for any statement in the Securities other than
its authentication.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
7.5 <U>Notice of Defaults</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">If
a Default or Event of Default occurs and is continuing with respect to the Securities of any Series and if it is known to a Responsible
Officer of the Trustee, the Trustee shall send to each Securityholder of the Securities of that Series notice of a Default or Event of
Default within 90 days after it occurs or, if later, after a Responsible Officer of the Trustee has knowledge of such Default or Event
of Default. Except in the case of a Default or Event of Default in payment of principal of or interest on any Security of any Series,
the Trustee may withhold the notice if and so long as its corporate trust committee or a committee of its Responsible Officers in good
faith determines that withholding the notice is in the interests of Securityholders of that Series.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
7.6 <U>Reports by Trustee to Holders</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Within
60 days after each _________ commencing _________, _______, the Trustee shall transmit by mail to all Securityholders, as their names and addresses
appear on the register kept by the Registrar, a brief report dated as of such anniversary date, in accordance with, and to the
extent required under, TIA &sect; 313.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">A
copy of each report at the time of its mailing to Securityholders of any Series shall be filed with the SEC and each national securities
exchange on which the Securities of that Series are listed. The Company shall promptly notify the Trustee in writing when Securities
of any Series are listed on any national securities exchange.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
7.7 <U>Compensation and Indemnity</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company shall pay to the Trustee from time to time compensation for its services as the Company and the Trustee shall from time to time
agree upon in writing. The Trustee&rsquo;s compensation shall not be limited by any law on compensation of a trustee of an express trust.
The Company shall reimburse the Trustee upon request for all reasonable out of pocket expenses incurred by it. Such expenses shall include
the reasonable compensation and expenses of the Trustee&rsquo;s agents and counsel.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company shall indemnify each of the Trustee and any predecessor Trustee (including for the cost of defending itself) against any cost,
expense or liability, including taxes (other than taxes based upon, measured by or determined by the income of the Trustee) incurred
by it except as set forth in the next paragraph in the performance of its duties under this Indenture as Trustee or Agent. The Trustee
shall notify the Company promptly of any claim for which it may seek indemnity. Failure by the Trustee to so notify the Company shall
not relieve the Company of its obligations hereunder, unless and to the extent that the Company is materially prejudiced thereby. The
Company shall defend the claim and the Trustee shall cooperate in the defense. The Trustee may have one separate counsel and the Company
shall pay the reasonable fees and expenses of such counsel. The Company need not pay for any settlement made without its consent, which
consent will not be unreasonably withheld. This indemnification shall apply to officers, directors, employees, shareholders and agents
of the Trustee.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company need not reimburse any expense or indemnify against any loss or liability incurred by the Trustee or by any officer, director,
employee, shareholder or agent of the Trustee through willful misconduct or negligence. To secure the Company&rsquo;s payment obligations
in this Section, the Trustee shall have a lien prior to the Securities of any Series on all money or property held or collected by the
Trustee, except that held in trust to pay principal of and interest on particular Securities of that Series.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">When
the Trustee incurs expenses or renders services after an Event of Default specified in Section 6.1(d) or (e) occurs, the expenses and
the compensation for the services are intended to constitute expenses of administration under any Bankruptcy Law. The provisions of this
Section shall survive the termination of this Indenture.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
7.8 <U>Replacement of Trustee</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">A
resignation or removal of the Trustee and appointment of a successor Trustee shall become effective only upon the successor Trustee&rsquo;s
acceptance of appointment as provided in this Section.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Trustee may resign with respect to the Securities of one or more Series by so notifying the Company at least 30 days prior to the date
of the proposed resignation. The Holders of a majority in principal amount of the Securities of any Series may remove the Trustee with
respect to that Series by so notifying the Trustee and the Company. The Company may remove the Trustee with respect to Securities of
one or more Series if:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(a)
the Trustee fails to comply with Section 7.10;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(b)
the Trustee is adjudged a bankrupt or an insolvent or an order for relief is entered with respect to the Trustee under any Bankruptcy
Law;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(c)
a Custodian or public officer takes charge of the Trustee or its property; or</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(d)
the Trustee becomes incapable of acting.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">If
the Trustee resigns or is removed or if a vacancy exists in the office of Trustee for any reason, the Company shall promptly appoint
a successor Trustee. Within one year after the successor Trustee takes office, the Holders of a majority in principal amount of the then
outstanding Securities may appoint a successor Trustee to replace the successor Trustee appointed by the Company.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">If
a successor Trustee with respect to the Securities of any one or more Series does not take office within 60 days after the retiring Trustee
resigns or is removed, the retiring Trustee, the Company or the Holders of at least a majority in principal amount of the Securities
of the applicable Series may petition any court of competent jurisdiction for the appointment of a successor Trustee.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">A
successor Trustee shall deliver a written acceptance of its appointment to the retiring Trustee and to the Company. Immediately after
that, the retiring Trustee shall transfer all property held by it as Trustee to the successor Trustee subject to the lien provided for
in Section 7.7, the resignation or removal of the retiring Trustee shall become effective, and the successor Trustee shall have all the
rights, powers and duties of the Trustee with respect to each Series of Securities for which it is acting as Trustee under this Indenture.
A successor Trustee shall mail a notice of its succession to each Securityholder of each such Series. Notwithstanding replacement of
the Trustee pursuant to this Section 7.8, the Company&rsquo;s obligations under Section 7.7 hereof shall continue for the benefit of
the retiring Trustee with respect to expenses and liabilities incurred by it for actions taken or omitted to be taken in accordance with
its rights, powers and duties under this Indenture prior to such replacement.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
7.9 <U>Successor Trustee by Merger, Etc</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">If
the Trustee consolidates with, merges or converts into, or transfers all or substantially all of its corporate trust business to, another
corporation, the successor corporation without any further act shall be the successor Trustee, subject to Section 7.10.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
7.10 <U>Eligibility; Disqualification</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">This
Indenture shall always have a Trustee who satisfies the requirements of TIA &sect; 310(a)(1), (2) and (5). The Trustee shall always have
a combined capital and surplus of at least $25,000,000 as set forth in its most recent published annual report of condition. The Trustee
shall comply with TIA &sect; 310(b).</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
7.11 <U>Preferential Collection of Claims Against Company</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Trustee is subject to TIA &sect; 311(a), excluding any creditor relationship listed in TIA &sect; 311(b). A Trustee who has resigned
or been removed shall be subject to TIA &sect; 311(a) to the extent indicated.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">ARTICLE
VIII<BR>
SATISFACTION AND DISCHARGE; DEFEASANCE</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
8.1 <U>Satisfaction and Discharge of Indenture</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">This
Indenture shall upon Company Order be discharged with respect to the Securities of any Series and cease to be of further effect as to
all Securities of such Series (except as hereinafter provided in this Section 8.1), and the Trustee, at the expense of the Company, shall
execute instruments acknowledging satisfaction and discharge of this Indenture, when</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(a)
either</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(i)
all Securities of such Series theretofore authenticated and delivered (other than Securities that have been destroyed, lost or stolen
and that have been replaced or paid) have been delivered to the Trustee for cancellation; or</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(ii)
all such Securities of such Series not theretofore delivered to the Trustee for cancellation</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" BORDER="0" STYLE="width: 100%; margin-top: 0pt; margin-bottom: 0pt; font: 10pt Times New Roman, Times, Serif">
<TR STYLE="vertical-align: top">
    <TD STYLE="width: 1.5in">&nbsp;</TD>
  <TD STYLE="text-align: justify; width: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(1)</FONT></TD>
  <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">have become due and payable by reason of sending a notice of
redemption or otherwise, or</FONT></TD></TR>

<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
  <TD STYLE="text-align: justify">&nbsp;</TD>
  <TD STYLE="text-align: justify">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
  <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(2)</FONT></TD>
  <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">will become due and payable at their Stated Maturity within
one year, or</FONT></TD></TR>

<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
  <TD STYLE="text-align: justify">&nbsp;</TD>
  <TD STYLE="text-align: justify">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
  <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(3)</FONT></TD>
  <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">have been called for redemption or are to be called for redemption
within one year under arrangements satisfactory to the Trustee for the giving of notice of redemption by the Trustee in the name, and
at the expense, of the Company, or</FONT></TD></TR>

<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
  <TD STYLE="text-align: justify">&nbsp;</TD>
  <TD STYLE="text-align: justify">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
  <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(4)</FONT></TD>
  <TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">are deemed paid and discharged pursuant to Section 8.3, as
applicable;</FONT></TD></TR>
</TABLE>


<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 2.5in; text-align: justify; text-indent: -0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">and
the Company, in the case of (1), (2) or (3) above, shall have irrevocably deposited or caused to be deposited with the Trustee as trust
funds in trust an amount of money or U.S. Government Obligations, which amount shall be sufficient for the purpose of paying and discharging
each installment of principal (including mandatory sinking fund or analogous payments) of and interest on all the Securities of such
Series on the dates such installments of principal or interest are due;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(b)
the Company has paid or caused to be paid all other sums payable hereunder by the Company; and</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(c)
the Company shall have delivered to the Trustee an Officer&rsquo;s Certificate and an Opinion of Counsel, each stating that all conditions
precedent provided for relating to the satisfaction and discharge contemplated by this Section have been complied with.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Notwithstanding
the satisfaction and discharge of this Indenture, the obligations of the Company to the Trustee under Section 7.7, and, if money shall
have been deposited with the Trustee pursuant to clause (a) of this Section, the provisions of Sections 2.4, 2.7, 2.8, 8.2 and 8.5 shall
survive.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
8.2 <U>Application of Trust Funds; Indemnification</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(a)
Subject to the provisions of Section 8.5, all money and U.S. Government Obligations or Foreign Government Obligations deposited with
the Trustee pursuant to Section 8.1, 8.3 or 8.4 and all money received by the Trustee in respect of U.S. Government Obligations or Foreign
Government Obligations deposited with the Trustee pursuant to Section 8.1, 8.3 or 8.4, shall be held in trust and applied by it, in accordance
with the provisions of the Securities and this Indenture, to the payment, either directly or through any Paying Agent (including the
Company acting as its own Paying Agent) as the Trustee may determine, to the persons entitled thereto, of the principal and interest
for whose payment such money has been deposited with or received by the Trustee or to make mandatory sinking fund payments or analogous
payments as contemplated by Sections 8.1, 8.3 or 8.4.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(b)
The Company shall pay and shall indemnify the Trustee against any tax, fee or other charge imposed on or assessed against U.S. Government
Obligations or Foreign Government Obligations deposited pursuant to Sections 8.1, 8.3 or 8.4 or the interest and principal received in
respect of such obligations other than any payable by or on behalf of Holders.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(c)
The Trustee shall deliver or pay to the Company from time to time upon Company Order any U.S. Government Obligations or Foreign Government
Obligations or money held by it as provided in Sections 8.3 or 8.4 which, in the opinion of a nationally recognized firm of independent
certified public accountants or investment bank expressed in a written certification thereof delivered to the Trustee, are then in excess
of the amount thereof which then would have been required to be deposited for the purpose for which such U.S. Government Obligations
or Foreign Government Obligations or money were deposited or received. This provision shall not authorize the sale by the Trustee of
any U.S. Government Obligations or Foreign Government Obligations held under this Indenture.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
8.3 <U>Legal Defeasance of Securities of any Series</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Unless
this Section 8.3 is otherwise specified pursuant to Section 2.2 to be inapplicable to Securities of any Series, the Company shall be
deemed to have paid and discharged the entire indebtedness on all the outstanding Securities of any Series on the 91st day after the
date of the deposit referred to in subparagraph (d) hereof, and the provisions of this Indenture, as it relates to such outstanding Securities
of such Series, shall no longer be in effect (and the Trustee, at the expense of the Company, shall, upon receipt of a Company Order,
execute instruments acknowledging the same), except as to:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(a)
the rights of Holders of Securities of such Series to receive, from the trust funds described in subparagraph (d) hereof, (i) payment
of the principal of and each installment of principal of and interest on the outstanding Securities of such Series on the Maturity of
such principal or installment of principal or interest and (ii) the benefit of any mandatory sinking fund payments applicable to the
Securities of such Series on the day on which such payments are due and payable in accordance with the terms of this Indenture and the
Securities of such Series;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(b)
the provisions of Sections 2.4, 2.5, 2.7, 2.8, 7.7, 8.2, 8.3, 8.5 and 8.6; and</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(c)
the rights, powers, trusts and immunities of the Trustee hereunder and the Company&rsquo;s obligations in connection therewith;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">provided
that, the following conditions shall have been satisfied:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(d)
the Company shall have irrevocably deposited or caused to be deposited (except as provided in Section 8.2(c)) with the Trustee as trust
funds specifically pledged as security for and dedicated solely to the benefit of the Holders of such Securities (i) in the case of Securities
of such Series denominated in Dollars, cash in Dollars and/or U.S. Government Obligations, or (ii) in the case of Securities of such
Series denominated in a Foreign Currency (other than a composite currency), money and/or Foreign Government Obligations, which through
the payment of interest and principal in respect thereof in accordance with their terms, will provide (and without reinvestment and assuming
no tax liability will be imposed on such Trustee), not later than one day before the due date of any payment of money, an amount in cash,
sufficient, in the opinion of a nationally recognized firm of independent public accountants or investment bank expressed in a written
certification thereof delivered to the Trustee, to pay and discharge each installment of principal of and interest, on and any mandatory
sinking fund payments in respect of all the Securities of such Series on the dates such installments of principal or interest and such
sinking fund payments are due;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(e)
such deposit will not result in a breach or violation of, or constitute a default under, this Indenture or any other agreement or instrument
to which the Company is a party or by which it is bound;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(f)
no Default or Event of Default with respect to the Securities of such Series shall have occurred and be continuing on the date of such
deposit or during the period ending on the 91st day after such date;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(g)
the Company shall have delivered to the Trustee an Officer&rsquo;s Certificate and an Opinion of Counsel to the effect that (i) the Company
has received from, or there has been published by, the Internal Revenue Service a ruling, or (ii) since the date of execution of this
Indenture, there has been a change in the applicable Federal income tax law, in either case to the effect that, and based thereon such
Opinion of Counsel shall confirm that, the Holders of the Securities of such Series will not recognize income, gain or loss for Federal
income tax purposes as a result of such deposit, defeasance and discharge and will be subject to Federal income tax on the same amount
and in the same manner and at the same times as would have been the case if such deposit, defeasance and discharge had not occurred;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(h)
the Company shall have delivered to the Trustee an Officer&rsquo;s Certificate stating that the deposit was not made by the Company with
the intent of defeating, hindering, delaying or defrauding any other creditors of the Company; and</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(i)
the Company shall have delivered to the Trustee an Officer&rsquo;s Certificate and an Opinion of Counsel, each stating that all conditions
precedent provided for relating to the defeasance contemplated by this Section have been complied with.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
8.4 <U>Covenant Defeasance</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Unless
this Section 8.4 is otherwise specified pursuant to Section 2.2 to be inapplicable to Securities of any Series, the Company may omit
to comply with respect to the Securities of any Series with any term, provision or condition set forth under Sections 4.2, 4.3, 4.4 and
5.1 and, unless otherwise specified therein, any additional covenants specified in a supplemental indenture for such Series of Securities
or a Board Resolution or an Officer&rsquo;s Certificate delivered pursuant to Section 2.2 (and the failure to comply with any such covenants
shall not constitute a Default or Event of Default with respect to such Series under Section 6.1) and the occurrence of any event specified
in a supplemental indenture for such Series of Securities or a Board Resolution or an Officer&rsquo;s Certificate delivered pursuant
to Section 2.2 and designated as an Event of Default shall not constitute a Default or Event of Default hereunder, with respect to the
Securities of such Series, but, except as specified above, the remainder of this Indenture and such Securities will be unaffected thereby;
provided that the following conditions shall have been satisfied:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(a)
with reference to this Section 8.4, the Company has irrevocably deposited or caused to be irrevocably deposited (except as provided in
Section 8.2(c)) with the Trustee as trust funds in trust for the purpose of making the following payments specifically pledged as security
for, and dedicated solely to, the benefit of the Holders of such Securities (i) in the case of Securities of such Series denominated
in Dollars, cash in Dollars and/or U.S. Government Obligations, or (ii) in the case of Securities of such Series denominated in a Foreign
Currency (other than a composite currency), money and/or Foreign Government Obligations, which through the payment of interest and principal
in respect thereof in accordance with their terms, will provide (and without reinvestment and assuming no tax liability will be imposed
on such Trustee), not later than one day before the due date of any payment of money, an amount in cash, sufficient, in the opinion of
a nationally recognized firm of independent certified public accountants or investment bank expressed in a written certification thereof
delivered to the Trustee, to pay and discharge each installment of principal (including mandatory sinking fund or analogous payments)
of and interest on all the Securities of such Series on the dates such installments of principal or interest are due;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(b)
such deposit will not result in a breach or violation of, or constitute a default under, this Indenture or any other agreement or instrument
to which the Company is a party or by which it is bound;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(c)
no Default or Event of Default with respect to the Securities of such Series shall have occurred and be continuing on the date of such
deposit;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(d)
the Company shall have delivered to the Trustee an Officers&rsquo; Certificate and an Opinion of Counsel to the effect that the Holders
of the Securities of such Series will not recognize income, gain or loss for Federal income tax purposes as a result of such deposit
and covenant defeasance and will be subject to Federal income tax on the same amount and in the same manner and at the same times as
would have been the case if such deposit and covenant defeasance had not occurred;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(e)
The Company shall have delivered to the Trustee an Officer&rsquo;s Certificate stating the deposit was not made by the Company with the
intent of defeating, hindering, delaying or defrauding any other creditors of the Company; and</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(f)
The Company shall have delivered to the Trustee an Officer&rsquo;s Certificate and an Opinion of Counsel, each stating that all conditions
precedent herein provided for relating to the covenant defeasance contemplated by this Section have been complied with.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
8.5 <U>Repayment to Company</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Subject
to applicable abandoned property law, the Trustee and the Paying Agent shall pay to the Company upon request any money held by them for
the payment of principal and interest that remains unclaimed for two years. After that, Securityholders entitled to the money must look
to the Company for payment as general creditors unless an applicable abandoned property law designates another person.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
8.6 <U>Reinstatement</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">If
the Trustee or the Paying Agent is unable to apply any money deposited with respect to Securities of any Series in accordance with Section
8.1 by reason of any legal proceeding or by reason of any order or judgment of any court or governmental authority enjoining, restraining
or otherwise prohibiting such application, the obligations of the Company under this Indenture with respect to the Securities of such
Series and under the Securities of such Series shall be revived and reinstated as though no deposit had occurred pursuant to Section
8.1 until such time as the Trustee or the Paying Agent is permitted to apply all such money in accordance with Section 8.1; <U>provided</U>,
<U>however</U>, that if the Company has made any payment of principal of or interest on or any Additional Amounts with respect to any
Securities because of the reinstatement of its obligations, the Company shall be subrogated to the rights of the Holders of such Securities
to receive such payment from the money or U.S. Government Obligations held by the Trustee or Paying Agent after payment in full to the
Holders.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">ARTICLE
IX<BR>
AMENDMENTS AND WAIVERS</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
9.1 <U>Without Consent of Holders</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company and the Trustee may amend or supplement this Indenture or the Securities of one or more Series without the consent of any Securityholder:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(a)
to cure any ambiguity, defect or inconsistency;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(b)
to comply with Article V;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(c)
to provide for uncertificated Securities in addition to or in place of certificated Securities;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(d)
to add guarantees with respect to Securities of any Series or secure Securities of any Series;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(e)
to surrender any of the Company&rsquo;s rights or powers under this Indenture;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(f)
to add covenants or events of default for the benefit of the holders of Securities of any Series;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(g)
to comply with the applicable procedures of the applicable depositary;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(h)
to make any change that does not adversely affect the rights of any Securityholder;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(i)
to provide for the issuance of and establish the form and terms and conditions of Securities of any Series as permitted by this Indenture;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(j)
to evidence and provide for the acceptance of appointment hereunder by a successor Trustee with respect to the Securities of one or more
Series and to add to or change any of the provisions of this Indenture as shall be necessary to provide for or facilitate the administration
of the trusts hereunder by more than one Trustee; or</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(k)
to comply with requirements of the SEC in order to effect or maintain the qualification of this Indenture under the TIA.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
9.2 <U>With Consent of Holders</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company and the Trustee may enter into a supplemental indenture hereto with the written consent of the Holders of at least a majority
in principal amount of the outstanding Securities of each Series affected by such supplemental indenture (including consents obtained
in connection with a tender offer or exchange offer for the Securities of such Series), for the purpose of adding any provisions to or
changing in any manner or eliminating any of the provisions of this Indenture or of any supplemental indenture hereto or of modifying
in any manner the rights of the Securityholders of each such Series. Except as provided in Section 6.13, the Holders of at least a majority
in principal amount of the outstanding Securities of any Series by notice to the Trustee (including consents obtained in connection with
a tender offer or exchange offer for the Securities of such Series) may waive compliance by the Company with any provision of this Indenture
or the Securities with respect to such Series.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">It
shall not be necessary for the consent of the Holders of Securities under this Section 9.2 to approve the particular form of any proposed
supplemental indenture hereto or waiver, but it shall be sufficient if such consent approves the substance thereof. After a supplemental
indenture hereto or waiver under this section becomes effective, the Company shall send to the Holders of Securities affected thereby,
a notice briefly describing the supplemental indenture or waiver. Any failure by the Company to send such notice, or any defect therein,
shall not, however, in any way impair or affect the validity of any such supplemental indenture or waiver.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
9.3 <U>Limitations</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Without
the consent of each Securityholder affected, an amendment or waiver may not:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(a)
reduce the principal amount of Securities whose Holders must consent to an amendment, supplement or waiver;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(b)
reduce the rate of or extend the time for payment of interest (including default interest) on any Security;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(c)
reduce the principal or change the Stated Maturity of any Security or reduce the amount of, or postpone the date fixed for, the payment
of any sinking fund or analogous obligation;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(d)
reduce the principal amount of Discount Securities payable upon acceleration of the maturity thereof;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(e)
waive a Default or Event of Default in the payment of the principal of or interest, if any, on any Security (except a rescission of acceleration
of the Securities of any Series by the Holders of at least a majority in principal amount of the outstanding Securities of such Series
and a waiver of the payment default that resulted from such acceleration);</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(f)
make the principal of or interest, if any, on any Security payable in any currency other than that stated in the Security;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(g)
make any change in Sections 6.8, 6.13 or 9.3 (this sentence); or</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(h)
waive a redemption payment with respect to any Security, provided that such redemption is made at the Company&rsquo;s option.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
9.4 <U>Compliance with Trust Indenture Act</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Every
amendment to this Indenture or the Securities of one or more Series shall be set forth in a supplemental indenture hereto that complies
with the TIA as then in effect.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
9.5 <U>Revocation and Effect of Consents</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Until
an amendment is set forth in a supplemental indenture hereto or a waiver becomes effective, a consent to it by a Holder of a Security
is a continuing consent by the Holder and every subsequent Holder of a Security or portion of a Security that evidences the same debt
as the consenting Holder&rsquo;s Security, even if notation of the consent is not made on any Security. However, any such Holder or subsequent
Holder may revoke the consent as to his Security or portion of a Security if the Trustee receives the notice of revocation before the
date of the supplemental indenture or the date the waiver becomes effective.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Any
amendment or waiver once effective shall bind every Securityholder of each Series affected by such amendment or waiver unless it is of
the type described in any of clauses (a) through (h) of Section 9.3. In that case, the amendment or waiver shall bind each Holder of
a Security who has consented to it and every subsequent Holder of a Security or portion of a Security that evidences the same debt as
the consenting Holder&rsquo;s Security.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company may, but shall not be obligated to, fix a record date for the purpose of determining the Holders entitled to give their consent
or take any other action described above or required or permitted to be taken pursuant to this Indenture. If a record date is fixed,
then notwithstanding the second immediately preceding paragraph, those Persons who were Holders at such record date (or their duly designated
proxies), and only those persons, shall be entitled to give such consent or to revoke any consent previously given or take any such action,
whether or not such Persons continue to be Holders after such record date. No such consent shall be valid or effective for more than
120 days after such record date.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
9.6 <U>Notation on or Exchange of Securities</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company or the Trustee may place an appropriate notation about an amendment or waiver on any Security of any Series thereafter authenticated.
The Company in exchange for Securities of that Series may issue and the Trustee shall authenticate upon receipt of a Company Order in
accordance with Section 2.3 new Securities of that Series that reflect the amendment or waiver.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
9.7 <U>Trustee Protected</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">In
executing, or accepting the additional trusts created by, any supplemental indenture hereto permitted by this Article or the modifications
thereby of the trusts created by this Indenture, the Trustee shall be entitled to receive, and (subject to Section 7.1) shall be fully
protected in relying upon, an Officer&rsquo;s Certificate or an Opinion of Counsel or both complying with Section 10.4. The Trustee shall
sign all supplemental indentures hereto upon delivery of such an Officer&rsquo;s Certificate or Opinion of Counsel or both, except that
the Trustee need not sign any supplemental indenture that adversely affects its rights, duties, liabilities or immunities under this
Indenture.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">ARTICLE
X<BR>
MISCELLANEOUS</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
10.1 <U>Trust Indenture Act Controls</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">If
any provision of this Indenture limits, qualifies, or conflicts with another provision which is required or deemed to be included in
this Indenture by the TIA, such required or deemed provision shall control.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
10.2 <U>Notices</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Any
notice or communication by the Company or the Trustee to the other, or by a Holder to the Company or the Trustee, is duly given if in
writing and delivered in person or mailed by first-class mail (registered or certified, return receipt requested), facsimile transmission,
email or overnight air courier guaranteeing next day delivery, to the other&rsquo;s address:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">if
to the Company:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Sigma
Labs, Inc.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">3900
Paseo del Sol</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Santa
Fe, NM 87507</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Attention:
Chief Financial Officer</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">with
a copy to:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">TroyGould
PC</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">1801
Century Park East, 16th Floor</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Los
Angeles, California 90067</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Attention:
Darren Freedman</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">if
to the Trustee:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">__________________</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">__________________</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Attention:
_________</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">with
a copy to:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">_________________</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">_________________</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Attention:
________</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company or the Trustee by notice to the other may designate additional or different addresses for subsequent notices or communications.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Any
notice or communication to a Securityholder shall be sent electronically or by first-class mail to his, her or its address shown on the
register kept by the Registrar, in accordance with the procedures of the Depositary. Failure to send a notice or communication to a Securityholder
of any Series or any defect in it shall not affect its sufficiency with respect to other Securityholders of that or any other Series.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">If
a notice or communication is sent or published in the manner provided above, within the time prescribed, it is duly given, whether or
not the Securityholder receives it.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">If
the Company sends a notice or communication to Securityholders, it shall send a copy to the Trustee and each Agent at the same time.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Notwithstanding
any other provision of this Indenture or any Security, where this Indenture or any Security provides for notice of any event (including
any notice of redemption) to a Holder of a Global Security (whether by mail or otherwise), such notice shall be sufficiently given to
the Depositary for such Security (or its designee) pursuant to the customary procedures of such Depositary.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
10.3 <U>Communication by Holders with Other Holders</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Securityholders
of any Series may communicate pursuant to TIA &sect; 312(b) with other Securityholders of that Series or any other Series with respect
to their rights under this Indenture or the Securities of that Series or all Series. The Company, the Trustee, the Registrar and anyone
else shall have the protection of TIA &sect; 312(c).</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
10.4 <U>Certificate and Opinion as to Conditions Precedent</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Upon
any request or application by the Company to the Trustee to take any action under this Indenture, the Company shall furnish to the Trustee:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(a)
an Officer&rsquo;s Certificate stating that, in the opinion of the signers, all conditions precedent, if any, provided for in this Indenture
relating to the proposed action have been complied with; and</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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    <DIV STYLE="break-before: page; margin-top: 6pt"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(b)
an Opinion of Counsel stating that, in the opinion of such counsel, all such conditions precedent have been complied with.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
10.5 <U>Statements Required in Certificate or Opinion</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Each
certificate or opinion with respect to compliance with a condition or covenant provided for in this Indenture (other than a certificate
provided pursuant to TIA &sect; 314(a)(4)) shall comply with the provisions of TIA &sect; 314(e) and shall include:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(a)
a statement that the person making such certificate or opinion has read such covenant or condition;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(b)
a brief statement as to the nature and scope of the examination or investigation upon which the statements or opinions contained in such
certificate or opinion are based;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(c)
a statement that, in the opinion of such person, he has made such examination or investigation as is necessary to enable him to express
an informed opinion as to whether or not such covenant or condition has been complied with; and</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">(d)
a statement as to whether or not, in the opinion of such person, such condition or covenant has been complied with.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
10.6 <U>Rules by Trustee and Agents</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Trustee may make reasonable rules for action by or a meeting of Securityholders of one or more Series. Any Agent may make reasonable
rules and set reasonable requirements for its functions.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
10.7 <U>Legal Holidays</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Unless
otherwise provided by Board Resolution, Officer&rsquo;s Certificate or supplemental indenture hereto for a particular Series, a &ldquo;<I>Legal
Holiday</I>&rdquo; is any day that is not a Business Day. If a payment date is a Legal Holiday at a place of payment, payment may be
made at that place on the next succeeding day that is not a Legal Holiday, and no interest shall accrue for the intervening period.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
10.8 <U>No Recourse Against Others</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">A
director, officer, employee or stockholder (past or present), as such, of the Company shall not have any liability for any obligations
of the Company under the Securities or this Indenture or for any claim based on, in respect of or by reason of such obligations or their
creation. Each Securityholder by accepting a Security waives and releases all such liability. The waiver and release are part of the
consideration for the issue of the Securities.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
10.9 <U>Counterparts</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">This
Indenture may be executed in any number of counterparts and by the parties hereto in separate counterparts, each of which when so executed
shall be deemed to be an original and all of which taken together shall constitute one and the same agreement. The exchange of copies
of this Indenture and of signature pages by facsimile or PDF transmission shall constitute effective execution and delivery of this Indenture
as to the parties hereto and may be used in lieu of the original Indenture for all purposes. Signatures of the parties hereto transmitted
by facsimile or PDF shall be deemed to be their original signatures for all purposes.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
10.10 <U>Governing Law, Waiver of Jury Trial, Consent to Jurisdiction</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>THIS
INDENTURE AND THE SECURITIES, INCLUDING ANY CLAIM OR CONTROVERSY ARISING OUT OF OR RELATING TO THE INDENTURE OR THE SECURITIES, SHALL
BE GOVERNED BY THE LAWS OF THE STATE OF NEW YORK. THE COMPANY, THE TRUSTEE AND THE HOLDERS (BY THEIR ACCEPTANCE OF THE SECURITIES) EACH
HEREBY IRREVOCABLY WAIVE, TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW, ANY AND ALL RIGHT TO TRIAL BY JURY IN ANY LEGAL PROCEEDING
ARISING OUT OF OR RELATING TO THIS INDENTURE, THE NOTES OR THE TRANSACTIONS CONTEMPLATED HEREBY OR THEREBY.</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Any
legal suit, action or proceeding arising out of or based upon this Indenture or the transactions contemplated hereby may be instituted
in the federal courts of the United States of America located in the City of New York or the courts of the State of New York in each
case located in the City of New York (collectively, the &ldquo;<I>Specified Courts</I>&rdquo;), and each party irrevocably submits to
the non-exclusive jurisdiction of such courts in any such suit, action or proceeding. Service of any process, summons, notice or document
by mail (to the extent allowed under any applicable statute or rule of court) to such party&rsquo;s address set forth above shall be
effective service of process for any suit, action or other proceeding brought in any such court. The Company, the Trustee and the Holders
(by their acceptance of the Securities) each hereby irrevocably and unconditionally waive any objection to the laying of venue of any
suit, action or other proceeding in the Specified Courts and irrevocably and unconditionally waive and agree not to plead or claim any
such suit, action or other proceeding has been brought in an inconvenient forum.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
10.11 <U>No Adverse Interpretation of Other Agreements</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">This
Indenture may not be used to interpret another indenture, loan or debt agreement of the Company or a Subsidiary of the Company. Any such
indenture, loan or debt agreement may not be used to interpret this Indenture.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
10.12 <U>Successors</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">All
agreements of the Company in this Indenture and the Securities shall bind its successor. All agreements of the Trustee in this Indenture
shall bind its successor.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
10.13 <U>Severability</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">In
case any provision in this Indenture or in the Securities shall be invalid, illegal or unenforceable, the validity, legality and enforceability
of the remaining provisions shall not in any way be affected or impaired thereby.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
10.14 <U>Table of Contents, Headings, Etc</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Table of Contents, Cross Reference Table, and headings of the Articles and Sections of this Indenture have been inserted for convenience
of reference only, are not to be considered a part hereof, and shall in no way modify or restrict any of the terms or provisions hereof.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
10.15 <U>Securities in a Foreign Currency</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Unless
otherwise specified in a Board Resolution, a supplemental indenture hereto or an Officer&rsquo;s Certificate delivered pursuant to Section
2.2 of this Indenture with respect to a particular Series of Securities, whenever for purposes of this Indenture any action may be taken
by the Holders of a specified percentage in aggregate principal amount of Securities of all Series or all Series affected by a particular
action at the time outstanding and, at such time, there are outstanding Securities of any Series which are denominated in more than one
currency, then the principal amount of Securities of such Series which shall be deemed to be outstanding for the purpose of taking such
action shall be determined by converting any such other currency into a currency that is designated upon issuance of any particular Series
of Securities. Unless otherwise specified in a Board Resolution, a supplemental indenture hereto or an Officer&rsquo;s Certificate delivered
pursuant to Section 2.2 of this Indenture with respect to a particular Series of Securities, such conversion shall be at the spot rate
for the purchase of the designated currency as published in The Financial Times in the &ldquo;Currency Rates&rdquo; section (or, if The
Financial Times is no longer published, or if such information is no longer available in The Financial Times, such source as may be selected
in good faith by the Company) on any date of determination. The provisions of this paragraph shall apply in determining the equivalent
principal amount in respect of Securities of a Series denominated in currency other than Dollars in connection with any action taken
by Holders of Securities pursuant to the terms of this Indenture. All decisions and determinations provided for in the preceding paragraph
shall, in the absence of manifest error, to the extent permitted by law, be conclusive for all purposes and irrevocably binding upon
the Trustee and all Holders.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
10.16 <U>Judgment Currency</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company agrees, to the fullest extent that it may effectively do so under applicable law, that (a) if for the purpose of obtaining judgment
in any court it is necessary to convert the sum due in respect of the principal of or interest or other amount on the Securities of any
Series (the &ldquo;<I>Required Currency</I>&rdquo;) into a currency in which a judgment will be rendered (the &ldquo;<I>Judgment Currency</I>&rdquo;),
the rate of exchange used shall be the rate at which in accordance with normal banking procedures the Trustee could purchase in The City
of New York the Required Currency with the Judgment Currency on the day on which final unappealable judgment is entered, unless such
day is not a New York Banking Day, then the rate of exchange used shall be the rate at which in accordance with normal banking procedures
the Trustee could purchase in The City of New York the Required Currency with the Judgment Currency on the New York Banking Day preceding
the day on which final unappealable judgment is entered and (b) its obligations under this Indenture to make payments in the Required
Currency (i) shall not be discharged or satisfied by any tender, any recovery pursuant to any judgment (whether or not entered in accordance
with subsection (a)), in any currency other than the Required Currency, except to the extent that such tender or recovery shall result
in the actual receipt, by the payee, of the full amount of the Required Currency expressed to be payable in respect of such payments,
(ii) shall be enforceable as an alternative or additional cause of action for the purpose of recovering in the Required Currency the
amount, if any, by which such actual receipt shall fall short of the full amount of the Required Currency so expressed to be payable,
and (iii) shall not be affected by judgment being obtained for any other sum due under this Indenture. For purposes of the foregoing,
&ldquo;<I>New York Banking Day</I>&rdquo; means any day except a Saturday, Sunday or a legal holiday in The City of New York on which
banking institutions are authorized or required by law, regulation or executive order to close.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
10.17 <U>Force Majeure</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">In
no event shall the Trustee be responsible or liable for any failure or delay in the performance of its obligations hereunder arising
out of or caused by, directly or indirectly, forces beyond its control, including, without limitation, strikes, work stoppages, accidents,
acts of war or terrorism, civil or military disturbances, nuclear or natural catastrophes or acts of God, and interruptions, loss or
malfunctions of utilities, communications or computer (software and hardware) services, it being understood that the Trustee shall use
reasonable best efforts which are consistent with accepted practices in the banking industry to resume performance as soon as practicable
under the circumstances.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
10.18 <U>U.S.A. Patriot Act</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
parties hereto acknowledge that in accordance with Section 326 of the U.S.A. Patriot Act, the Trustee is required to obtain, verify,
and record information that identifies each person or legal entity that establishes a relationship or opens an account with the Trustee.
The parties to this Indenture agree that they will provide the Trustee with such information as it may request in order for the Trustee
to satisfy the requirements of the U.S.A. Patriot Act.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">ARTICLE
XI<BR>
SINKING FUNDS</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
11.1 <U>Applicability of Article</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
provisions of this Article shall be applicable to any sinking fund for the retirement of the Securities of a Series if so provided by
the terms of such Securities pursuant to Section 2.2 and except as otherwise permitted or required by any form of Security of such Series
issued pursuant to this Indenture.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
minimum amount of any sinking fund payment provided for by the terms of the Securities of any Series is herein referred to as a &ldquo;<I>mandatory
sinking fund payment</I>&rdquo; and any other amount provided for by the terms of Securities of such Series is herein referred to as
an &ldquo;<I>optional sinking fund payment</I>.&rdquo; If provided for by the terms of Securities of any Series, the cash amount of any
sinking fund payment may be subject to reduction as provided in Section 11.2. Each sinking fund payment shall be applied to the redemption
of Securities of any Series as provided for by the terms of the Securities of such Series.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
11.2 <U>Satisfaction of Sinking Fund Payments with Securities</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
Company may, in satisfaction of all or any part of any sinking fund payment with respect to the Securities of any Series to be made pursuant
to the terms of such Securities (1) deliver outstanding Securities of such Series to which such sinking fund payment is applicable (other
than any of such Securities previously called for mandatory sinking fund redemption) and (2) apply as credit Securities of such Series
to which such sinking fund payment is applicable and which have been repurchased by the Company or redeemed either at the election of
the Company pursuant to the terms of such Series of Securities (except pursuant to any mandatory sinking fund) or through the application
of permitted optional sinking fund payments or other optional redemptions pursuant to the terms of such Securities, provided that such
Securities have not been previously so credited. Such Securities shall be received by the Trustee, together with an Officer&rsquo;s Certificate
with respect thereto, not later than 15 days prior to the date on which the Trustee begins the process of selecting Securities for redemption,
and shall be credited for such purpose by the Trustee at the price specified in such Securities for redemption through operation of the
sinking fund and the amount of such sinking fund payment shall be reduced accordingly. If as a result of the delivery or credit of Securities
in lieu of cash payments pursuant to this Section 11.2, the principal amount of Securities of such Series to be redeemed in order to
exhaust the aforesaid cash payment shall be less than $100,000, the Trustee need not call Securities of such Series for redemption, except
upon receipt of a Company Order that such action be taken, and such cash payment shall be held by the Trustee or a Paying Agent and applied
to the next succeeding sinking fund payment, <U>provided</U>, <U>however</U>, that the Trustee or such Paying Agent shall from time to
time upon receipt of a Company Order pay over and deliver to the Company any cash payment so being held by the Trustee or such Paying
Agent upon delivery by the Company to the Trustee of Securities of that Series purchased by the Company having an unpaid principal amount
equal to the cash payment required to be released to the Company.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Section
11.3 <U>Redemption of Securities for Sinking Fund</U>.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Not
less than 45 days (unless otherwise indicated in the Board Resolution, supplemental indenture hereto or Officer&rsquo;s Certificate in
respect of a particular Series of Securities) prior to each sinking fund payment date for any Series of Securities, the Company will
deliver to the Trustee an Officer&rsquo;s Certificate specifying the amount of the next ensuing mandatory sinking fund payment for that
Series pursuant to the terms of that Series, the portion thereof, if any, which is to be satisfied by payment of cash and the portion
thereof, if any, which is to be satisfied by delivering and crediting of Securities of that Series pursuant to Section 11.2, and the
optional amount, if any, to be added in cash to the next ensuing mandatory sinking fund payment, and the Company shall thereupon be obligated
to pay the amount therein specified. Not less than 30 days (unless otherwise indicated in the Board Resolution, Officer&rsquo;s Certificate
or supplemental indenture hereto in respect of a particular Series of Securities) before each such sinking fund payment date the Securities
to be redeemed upon such sinking fund payment date will be selected in the manner specified in Section 3.2 and the Company shall send
or cause to be sent a notice of the redemption thereof to be given in the name of and at the expense of the Company in the manner provided
in and in accordance with Section 3.3. Such notice having been duly given, the redemption of such Securities shall be made upon the terms
and in the manner stated in Sections 3.4, 3.5 and 3.6.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">IN
WITNESS WHEREOF, the parties hereto have caused this Indenture to be duly executed as of the day and year first written above.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

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    <TD COLSPAN="2" STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>SIGMA
    LABS, INC.</B></FONT></TD></TR>
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    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 50%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 5%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 45%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="padding-bottom: 1.5pt; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="padding-bottom: 1.5pt; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">By:</FONT></TD>
    <TD STYLE="border-bottom: Black 1.5pt solid; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="padding-bottom: 1.5pt; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="padding-bottom: 1.5pt; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Name:</FONT></TD>
    <TD STYLE="border-bottom: Black 1.5pt solid; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="padding-bottom: 1.5pt; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="padding-bottom: 1.5pt; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Its:</FONT></TD>
    <TD STYLE="border-bottom: Black 1.5pt solid; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
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    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
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    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD COLSPAN="2" STYLE="font: 10pt Times New Roman, Times, Serif">___________<FONT STYLE="font: 10pt Times New Roman, Times, Serif">, as Trustee</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="padding-bottom: 1.5pt; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="padding-bottom: 1.5pt; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">By:</FONT></TD>
    <TD STYLE="border-bottom: Black 1.5pt solid; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
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    <TD STYLE="padding-bottom: 1.5pt; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="padding-bottom: 1.5pt; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Name:</FONT></TD>
    <TD STYLE="border-bottom: Black 1.5pt solid; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="padding-bottom: 1.5pt; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="padding-bottom: 1.5pt; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Its:</FONT></TD>
    <TD STYLE="border-bottom: Black 1.5pt solid; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
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<TYPE>EX-5.1
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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Exhibit
5.1</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>TroyGould
PC</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>1801
Century Park East, 16th Floor<BR>
Los Angeles, California 90067</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">June
11, 2021</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Sigma
Labs, Inc.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">3900
Paseo del Sol</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Santa
Fe, New Mexico 87507</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Re:
<U>Registration Statement on Form S-3</U></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Ladies
and Gentlemen:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
have acted as counsel to Sigma Labs, Inc., a Nevada corporation (the &ldquo;<B>Company</B>&rdquo;), in connection with the Registration
Statement on Form S-3 (the &ldquo;<B>Registration Statement</B>&rdquo;) under the Securities Act of 1933, as amended (the &ldquo;<B>Securities
Act</B>&rdquo;), to be filed by the Company with the Securities and Exchange Commission (the &ldquo;<B>Commission</B>&rdquo;) on the
date of this opinion letter. The Registration Statement relates to the Company&rsquo;s offer and sale from time to time, pursuant to
Rule 415 under the Securities Act, of the following securities of the Company with an aggregate public offering price of up to $50,000,000:
(1) shares of the Company&rsquo;s common stock, par value $0.001 per share (&ldquo;<B>Common Stock</B>&rdquo;); (2) shares of the Company&rsquo;s
preferred stock, par value $0.001 per share (&ldquo;<B>Preferred Stock</B>&rdquo;); (3) debt securities (the &ldquo;<B>Debt Securities</B>&rdquo;),
which will be issued pursuant to one or more indentures in the form filed as an exhibit to the Registration Statement, as amended or
supplemented from time to time (each, an &ldquo;<B>Indenture</B>&rdquo;), between the Company, as obligor, and a trustee chosen by the
Company and qualified to act as such under the Trust Indenture Act of 1939, as amended (the &ldquo;<B>Trustee</B>&rdquo;); (4) warrants
to purchase shares of Common Stock or Preferred Stock or Debt Securities (&ldquo;<B>Warrants</B>&rdquo;); and (5) units consisting of
shares of Common Stock, shares of Preferred Stock, Debt Securities and/or Warrants (&ldquo;<B>Units</B>&rdquo;). The Common Stock, the
Preferred Stock, the Debt Securities, the Warrants and the Units collectively are referred to in this opinion letter as the &ldquo;<B>Securities</B>.&rdquo;
The Registration Statement includes a prospectus (the &ldquo; <B>Base Prospectus</B>&rdquo;), which states that it will be supplemented
from time to time by one or more supplements setting forth the specific terms of each offering of Securities (each, a &ldquo;<B>Prospectus
Supplement</B>&rdquo;). The Registration Statement also includes a prospectus supplement (the &ldquo;<B>Warrant Shares Prospectus Supplement</B>&rdquo;<B>)
</B>covering the issuance of up to 88,911 shares of Common Stock (the &ldquo;<B>Warrant Shares</B>&rdquo;) to be issued upon the exercise
of certain outstanding warrants (the &ldquo;<B>Outstanding Warrants</B>&rdquo;) previously offered and sold by the Company under the
circumstances described in the Warrant Shares Prospectus Supplement. The shares of Common Stock that may be offered, issued and sold
pursuant to the Warrant Shares Prospectus Supplement are not included in the $50,000,000 of securities that may be offered, issued and
sold by the Company under the Base Prospectus.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
opinion letter is furnished to you at your request and in connection with the requirements of Item 601(b)(5) of Regulation S-K under
the Securities Act.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">In
connection with rendering the opinions expressed below, we have reviewed and relied upon originals or copies of: (1) the Registration
Statement; (2) the Company&rsquo;s Articles of Incorporation and Bylaws, each as amended to date; (3) resolutions adopted by the Company&rsquo;s
Board of Directors pertaining to the Registration Statement, the Securities, and related matters; and (4) such certificates of public
officials and officers of the Company, and such records of the Company and other documents, as we have deemed necessary or appropriate
as a basis for our opinions. We also have reviewed such matters of the law described in the following paragraph as we considered necessary
or appropriate as a basis for the opinions expressed below.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">The
law covered by our opinions expressed below is limited to the General Corporation Law of the State of California (the &ldquo;<B>California
Corporation Law</B>&rdquo;), including applicable rules and regulations promulgated under the California Corporation Law and applicable
reported judicial decisions interpreting the California Corporation Law, the Nevada General Corporation Law (including applicable rules
and regulations promulgated under the Nevada General Corporation Law and applicable reported judicial decisions interpreting the Nevada
General Corporation Law), and with respect only to the opinions expressed below in paragraph 3 regarding Debt Securities, the internal
laws of the State of New York, excluding laws, rules, and regulations of any counties, cities, municipalities, and local agencies within
New York.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
neither express nor imply any opinion with respect to any other laws or the laws of any other jurisdiction. The Securities may be issued
from time to time on a delayed or continuous basis, and the opinions expressed below concern only laws that are in effect on the date
of this opinion letter. We undertake no, and hereby disclaim any, obligation to advise you of any change in any matter set forth herein,
whether based on a change in laws, a change in any fact relating to the Company, or any other circumstance. This opinion letter is limited
to the matters expressly stated herein, and no opinions are to be inferred or may be implied beyond the opinions expressly set forth
herein. Without limiting the generality of the foregoing, we neither express nor imply any opinion regarding the contents of the Registration
Statement, the Prospectus, or any Prospectus Supplement other than as expressly stated herein with respect to the issuance of the Securities.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Based
upon and subject to the foregoing and the additional qualifications and limitations set forth below, we are of the opinion that:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">1.
When the issuance and the terms of the sale of shares of Common Stock have been duly authorized and established by the Board of Directors
of the Company in conformity with the Company&rsquo;s Articles of Incorporation and Bylaws and such shares have been issued and delivered
against payment of their full purchase price and in accordance with the applicable purchase, underwriting, or similar agreement and the
terms of the Registration Statement, the Base Prospectus, and the applicable Prospectus Supplement (and, if issued upon the exercise
of Warrants, when such shares of Common Stock have been duly issued and delivered as contemplated by the terms of the Warrants), such
shares of Common Stock will be validly issued, fully paid, and nonassessable.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">2.
When the issuance and the terms of sale of shares of Preferred Stock have been duly authorized and established by the Board of Directors
of the Company in conformity with the Company&rsquo;s Articles of Incorporation, including the designations of rights, preferences and
privileges of such Preferred Stock, and Bylaws and such shares have been issued and delivered against payment of their full purchase
price and in accordance with the applicable purchase, underwriting, or similar agreement and the terms of the Registration Statement,
the Base Prospectus, and the applicable Prospectus Supplement, such shares of Preferred Stock will be validly issued, fully paid, and
nonassessable.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">3.
When the issuance and the terms of the sale of the Debt Securities have been duly authorized and established by the Board of Directors
of the Company and duly established in conformity with the applicable Indenture, the applicable Indenture has been qualified under the
Trust Indenture Act of 1939, as amended, and the Debt Securities have been duly executed, authenticated, issued, delivered and sold in
accordance with the applicable definitive purchase, underwriting or similar agreement, as contemplated by the Registration Statement,
the Base Prospectus and the related Prospectus Supplement, and in the manner provided for in the applicable Indenture against payment
of the purchase price therefor, the Debt Securities will constitute valid and binding obligations of the Company enforceable against
the Company in accordance with their respective terms.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">4.
When the issuance and the terms of the sale of Warrants have been duly authorized and established by the Board of Directors of the Company
and such Warrants have been issued and delivered against payment of their full purchase price and in accordance with the applicable warrant,
underwriting, or similar agreement and the terms of the Registration Statement, the Base Prospectus, and the applicable Prospectus Supplement,
such Warrants will constitute valid and binding obligations of the Company, enforceable against the Company in accordance with their
terms.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">5.
When the issuance and the terms of the sale of Units have been duly authorized and established by the Board of Directors of the Company
and such Units have been issued and delivered against payment of their full purchase price and in accordance with the applicable purchase,
underwriting, or similar agreement and the terms of the Registration Statement, the Base Prospectus, and the applicable Prospectus Supplement,
such Units will constitute valid and binding obligations of the Company, enforceable against the Company in accordance with their terms.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">6.
When the Warrant Shares have been issued and paid for in accordance with the terms of the Outstanding Warrants, as contemplated by the
Registration Statement, the Base Prospectus and the Warrant Shares Prospectus Supplement, the Warrant Shares will be validly issued,
fully paid and non-assessable.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">With
your permission, we have made (and are relying upon) the following assumptions, without any independent investigation or inquiry by us,
and our opinions expressed above are subject to, and limited and qualified by the effect of, the following assumptions: (1) all representations,
warranties, and other statements as to factual matters that are contained in the documents that we reviewed in connection with this opinion
letter are accurate and complete, and all corporate records furnished to us by the Company are accurate and complete; (2) the Registration
Statement will be declared effective under the Securities Act prior to the Company&rsquo;s offer and sale of any Securities, and such
effectiveness will not be suspended or terminated as of the date of the offer and sale of any Securities; (3) the Company&rsquo;s Board
of Directors will adopt resolutions duly authorizing each offer and sale of Securities and establishing the terms of the sale of such
Securities, which, as to the Debt Securities, shall be consistent with the procedures and terms described in the applicable Indenture,
and such resolutions will not be rescinded and will not be modified in a manner that adversely affects the opinions expressed above;
(4) any Debt Securities will be issued pursuant to the applicable Indenture, which will be filed as Exhibit 4.3 to the Registration Statement;
(5) each applicable Indenture will be qualified under the Trust Indenture Act of 1939, as amended; (6) in compliance with the Securities
Act and the rules and regulations thereunder, the Company will prepare and file with the Commission a Prospectus Supplement describing
the terms of each offering of Securities; (7) a definitive purchase, underwriting, warrant, or similar agreement will be duly executed
and delivered by the Company and the other parties thereto with respect to each offer and sale of Securities; (8) the number of shares
of its Common Stock or Preferred Stock, as applicable, to be issued pursuant to the Registration Statement, the Prospectus, and any Prospectus
Supplement, together with the number of then-outstanding shares of Common Stock or Preferred Stock, will not exceed the number of shares
of Common Stock or Preferred Stock authorized in the Company&rsquo;s Articles of Incorporation; (9) the purchase price of all Securities
will consist solely of cash; (10) in connection with each issuance of Securities, the Company will duly execute and deliver stock certificates,
warrant certificates, debt certificates, or unit certificates, as applicable, in the form filed by the Company as exhibits to the Registration
Statement or, with respect to Common Stock or Preferred Stock issued on an uncertificated basis, the Company will comply with applicable
law regarding the documentation of uncertificated securities; (11) the Company&rsquo;s offer and sale of the Securities, and compliance
with any definitive Indenture or purchase, underwriting, warrant, or similar agreement pertaining to such offer and sale, will not violate
any applicable law, rule, regulation, or public policy or any judgment, order or decree of any court having jurisdiction over the Company;
(12) the Company&rsquo;s offer and sale of the Securities, and compliance with any definitive Indenture or purchase, underwriting, warrant,
or similar agreement pertaining to such offer and sale, will not constitute a default under, or a breach of, any agreement to which the
Company is a party or is otherwise subject, and will not otherwise impair the legal or binding nature of the obligations represented
by the applicable Debt Securities, and neither the Company&rsquo;s Articles of Incorporation nor Bylaws will be amended after the date
of this opinion letter in a manner that would cause such offer or sale of Securities to constitute a violation of the Articles of Incorporation
or Bylaws; (13) each purchase, underwriting, warrant, unit, or similar agreement pertaining to the offer, sale, and issuance of any Securities
will be governed by the internal laws of the State of California, except that the Indenture, and any related promissory notes will be
governed by the internal laws of the State of New York; (14) if Common Stock is issued upon the conversion or exercise of Preferred Stock,
Debt Securities and Warrants, the conversion and exercise terms thereunder, as applicable, will be complied with; and (15) with respect
to documents that we reviewed in connection with this opinion letter, all documents submitted to us as originals are authentic; all documents
submitted to us as certified, facsimile, or photostatic copies conform to the originals of such documents, and such original documents
are authentic; the signatures on all documents are genuine; and all natural persons who have executed any of the documents have the legal
capacity to do so.</FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">To
the extent that the obligations of the Company with respect to the Debt Securities may be dependent upon such matters, we assume for
purposes of this opinion that the other party under an applicable Indenture, namely, the Trustee, is duly organized, validly existing
and in good standing under the laws of its jurisdiction of organization; that the Trustee is duly qualified to engage in the activities
contemplated by the applicable Indenture; that the applicable Indenture will be duly authorized, executed and delivered by the Trustee
and will constitute the legal, valid and binding obligation of the other party enforceable against the other party in accordance with
its terms; that the Trustee will at all times comply with its obligations under the applicable Indenture, with all applicable laws and
regulations; and that the Trustee will have the requisite organizational and legal power and authority to perform its obligations under
the applicable Indenture.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Our
opinions are subject to: (i) the effect of bankruptcy, insolvency, reorganization, preference, fraudulent transfer, moratorium or other
similar laws relating to or affecting the rights and remedies of creditors; (ii) the effect of general principles of equity, whether
considered in a proceeding in equity or at law (including the possible unavailability of specific performance or injunctive relief),
concepts of materiality, reasonableness, good faith and fair dealing, and the discretion of the court before which a proceeding is brought;
(iii) the invalidity under certain circumstances under law or court decisions of provisions providing for the indemnification of or contribution
to a party with respect to a liability where such indemnification or contribution is contrary to public policy; and (iv) we express no
opinion as to (a) any provision for liquidated damages, default interest, late charges, monetary penalties, make-whole premiums or other
economic remedies to the extent such provisions are deemed to constitute a penalty, (b) consents to, or restrictions upon, governing
law, jurisdiction, venue, arbitration, remedies or judicial relief, (c) waivers of rights or defenses, (d) any provision requiring the
payment of attorneys&rsquo; fees, where such payment is contrary to law or public policy, (e) any provision permitting, upon acceleration
of any Debt Securities, collection of that portion of the stated principal amount thereof which might be determined to constitute unearned
interest thereon, (f) the creation, validity, attachment, perfection, or priority of any lien or security interest, (g) advance waivers
of claims, defenses, rights granted by law (including the waiver of rights or defenses in provided for in the Applicable Indenture),
or notice, opportunity for hearing, evidentiary requirements, statutes of limitation, trial by jury or at law, or other procedural rights,
(h) waivers of broadly or vaguely stated rights, (i) provisions for exclusivity, election or cumulation of rights or remedies, (j) provisions
authorizing or validating conclusive or discretionary determinations, (k) grants of setoff rights, (l) proxies, powers and trusts, (m)
provisions prohibiting, restricting, or requiring consent to assignment or transfer of any right or property, (n) any provision to the
extent it requires that a claim with respect to a security denominated in other than U.S. dollars (or a judgment in respect of such a
claim) be converted into U.S. dollars at a rate of exchange at a particular date, to the extent applicable law otherwise provides, and
(o) the severability, if invalid, of provisions to the foregoing effect.</FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">This
opinion letter is rendered to you in connection with the Registration Statement and may not be relied upon by you for any other purpose.
We hereby consent to the filing of this opinion letter as an exhibit to the Registration Statement and further consent to the reference
to our name under the caption &ldquo;Legal Matters&rdquo; in the Prospectus. In giving our consent, we do not thereby admit that we are
included within the category of persons whose consent is required under Section 7 of the Securities Act or the rules and regulations
of the Commission thereunder.</FONT></P>

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<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 50%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 50%"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Very
    truly yours,</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="padding-bottom: 1.5pt; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="border-bottom: Black 1.5pt solid; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>/s/
    TroyGould PC</I></FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">TROYGOULD
    PC</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>


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<TYPE>EX-23.1
<SEQUENCE>4
<FILENAME>ex23-1.htm
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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Exhibit
23.1</B></FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>CONSENT
OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
consent to the use in this Registration Statement on Form S-3 of Sigma Labs, Inc. of our report dated March 24, 2021, relating to our
audits of the December 31, 2020 and 2019 financial statements, incorporated by reference in the Prospectus and the Prospectus Supplement,
which are part of this Registration Statement.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We
also consent to the references to our firm under the captions &ldquo;Experts&rdquo; in such Prospectus and Prospectus Supplement.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="padding-bottom: 1.5pt; font: 10pt Times New Roman, Times, Serif; width: 50%; text-align: justify"><I>/<FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">s/
    Haynie &amp; Company</FONT></I></TD>
    <TD STYLE="padding-bottom: 1.5pt; font: 10pt Times New Roman, Times, Serif; width: 50%; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Salt
    Lake City, Utah</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">June
    11, 2021</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  </TABLE>
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