<SEC-DOCUMENT>0001193125-20-195040.txt : 20200720
<SEC-HEADER>0001193125-20-195040.hdr.sgml : 20200720
<ACCEPTANCE-DATETIME>20200720060633
ACCESSION NUMBER:		0001193125-20-195040
CONFORMED SUBMISSION TYPE:	S-1/A
PUBLIC DOCUMENT COUNT:		2
FILED AS OF DATE:		20200720
DATE AS OF CHANGE:		20200720

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Montrose Environmental Group, Inc.
		CENTRAL INDEX KEY:			0001643615
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-MANAGEMENT CONSULTING SERVICES [8742]
		IRS NUMBER:				464195044
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		S-1/A
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-239542
		FILM NUMBER:		201034952

	BUSINESS ADDRESS:	
		STREET 1:		1 PARK PLAZA, SUITE 1000
		CITY:			IRVINE
		STATE:			CA
		ZIP:			92614
		BUSINESS PHONE:		(949) 988-3500

	MAIL ADDRESS:	
		STREET 1:		1 PARK PLAZA, SUITE 1000
		CITY:			IRVINE
		STATE:			CA
		ZIP:			92614
</SEC-HEADER>
<DOCUMENT>
<TYPE>S-1/A
<SEQUENCE>1
<FILENAME>d41822ds1a.htm
<DESCRIPTION>S-1/A
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<Center><DIV STYLE="width:8.5in" align="left">
  <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:8pt; font-family:Times New Roman" ALIGN="center"><B>As filed with the Securities and Exchange Commission on July 20, 2020 </B></P>
<P STYLE="margin-top:4pt; margin-bottom:0pt; font-size:8pt; font-family:Times New Roman" ALIGN="right"><B>Registration <FONT STYLE="white-space:nowrap">No.&nbsp;333-239542</FONT> </B></P>
<P STYLE="font-size:3pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P> <P STYLE="line-height:1.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1px solid #000000">&nbsp;</P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; font-size:14pt; font-family:Times New Roman" ALIGN="center"><B>UNITED STATES </B></P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:14pt; font-family:Times New Roman" ALIGN="center"><B>SECURITIES
AND EXCHANGE COMMISSION </B></P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:9pt; font-family:Times New Roman" ALIGN="center"><B>WASHINGTON, D.C. 20549 </B></P> <P STYLE="font-size:4pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><center>
<P STYLE="line-height:6.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1px solid #000000;width:20%">&nbsp;</P></center>  <P STYLE="margin-top:4pt; margin-bottom:0pt; font-size:14pt; font-family:Times New Roman" ALIGN="center"><B>Amendment No.
2 </B></P>  <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:14pt; font-family:Times New Roman" ALIGN="center"><B>to </B></P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:14pt; font-family:Times New Roman" ALIGN="center"><B>FORM <FONT
STYLE="white-space:nowrap">S-1</FONT> </B></P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:14pt; font-family:Times New Roman" ALIGN="center"><B>REGISTRATION STATEMENT </B></P>
<P STYLE="margin-top:4pt; margin-bottom:0pt; font-size:9pt; font-family:Times New Roman" ALIGN="center"><B><I>UNDER </I></B></P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:9pt; font-family:Times New Roman" ALIGN="center"><B><I>THE
SECURITIES ACT OF 1933 </I></B></P> <P STYLE="margin-top:4pt; margin-bottom:0pt; font-size:20pt; font-family:Times New Roman" ALIGN="center"><B>Montrose Environmental Group, Inc. </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:8pt; font-family:Times New Roman" ALIGN="center"><B>(Exact name of Registrant as specified in its charter) </B></P> <P STYLE="font-size:4pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><center>
<P STYLE="line-height:6.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1px solid #000000;width:20%">&nbsp;</P></center> <P STYLE="font-size:4pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="100%" BORDER="0" STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:7pt" ALIGN="center">


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<TD VALIGN="top" ALIGN="center"><B>Delaware</B></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top" ALIGN="center"><B>8999</B></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top" ALIGN="center"><B><FONT STYLE="white-space:nowrap">46-4195044</FONT></B></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:7pt">
<TD VALIGN="top" ALIGN="center"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:7pt; font-family:Times New Roman" ALIGN="center"><B>(State or other jurisdiction of</B></P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:7pt; font-family:Times New Roman" ALIGN="center"><B>incorporation or organization)</B></P></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top" ALIGN="center"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:7pt; font-family:Times New Roman" ALIGN="center"><B>(Primary Standard Industrial</B></P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:7pt; font-family:Times New Roman" ALIGN="center"><B>Classification Code Number)</B></P></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top" ALIGN="center"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:7pt; font-family:Times New Roman" ALIGN="center"><B>(I.R.S. Employer</B></P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:7pt; font-family:Times New Roman" ALIGN="center"><B>Identification Number)</B></P></TD></TR>
</TABLE> <P STYLE="margin-top:4pt; margin-bottom:0pt; font-size:7pt; font-family:Times New Roman" ALIGN="center"><B>1 Park Plaza, Suite 1000 </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:7pt; font-family:Times New Roman" ALIGN="center"><B>Irvine, CA 92614 </B></P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:7pt; font-family:Times New Roman" ALIGN="center"><B>(949) <FONT
STYLE="white-space:nowrap">988-3500</FONT> </B></P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:7pt; font-family:Times New Roman" ALIGN="center"><B>(Address, including zip code, and telephone number, including area code, of
registrant&#146;s principal executive offices) </B></P> <P STYLE="font-size:4pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><center>
<P STYLE="line-height:6.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1px solid #000000;width:20%">&nbsp;</P></center> <P STYLE="margin-top:4pt; margin-bottom:0pt; font-size:7pt; font-family:Times New Roman" ALIGN="center"><B>Vijay
Manthripragada </B></P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:7pt; font-family:Times New Roman" ALIGN="center"><B>President and Chief Executive Officer </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:7pt; font-family:Times New Roman" ALIGN="center"><B>Montrose Environmental Group, Inc. </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:7pt; font-family:Times New Roman" ALIGN="center"><B>1 Park Plaza, Suite 1000 </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:7pt; font-family:Times New Roman" ALIGN="center"><B>Irvine, CA 92614 </B></P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:7pt; font-family:Times New Roman" ALIGN="center"><B>(949) <FONT
STYLE="white-space:nowrap">988-3500</FONT> </B></P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:7pt; font-family:Times New Roman" ALIGN="center"><B>(Name, address, including zip code, and telephone number, including area code, of agent
for service) </B></P> <P STYLE="font-size:4pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><center> <P STYLE="line-height:6.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1px solid #000000;width:20%">&nbsp;</P></center>
<P STYLE="margin-top:4pt; margin-bottom:0pt; font-size:7pt; font-family:Times New Roman" ALIGN="center"><B><I>Copies to: </I></B></P> <P STYLE="font-size:4pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD VALIGN="top" ALIGN="center"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:7pt; font-family:Times New Roman" ALIGN="center"><B>Peter W. Wardle</B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:7pt; font-family:Times New Roman" ALIGN="center"><B>Gibson, Dunn&nbsp;&amp; Crutcher LLP</B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:7pt; font-family:Times New Roman" ALIGN="center"><B>333 South Grand Avenue</B></P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:7pt; font-family:Times New Roman" ALIGN="center"><B>Los
Angeles, CA 90071</B></P> <P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:7pt; font-family:Times New Roman" ALIGN="center"><B>(213) <FONT STYLE="white-space:nowrap">229-7242</FONT></B></P></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top" ALIGN="center"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:7pt; font-family:Times New Roman" ALIGN="center"><B>Nasym Afsari</B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:7pt; font-family:Times New Roman" ALIGN="center"><B>General Counsel</B></P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:7pt; font-family:Times New Roman" ALIGN="center"><B>Montrose
Environmental Group, Inc.</B></P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:7pt; font-family:Times New Roman" ALIGN="center"><B>1 Park Plaza, Suite 1000</B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:7pt; font-family:Times New Roman" ALIGN="center"><B>Irvine, CA 92614</B></P> <P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:7pt; font-family:Times New Roman" ALIGN="center"><B>(949) <FONT
STYLE="white-space:nowrap">988-3500</FONT></B></P></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top" ALIGN="center"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:7pt; font-family:Times New Roman" ALIGN="center"><B>Rezwan D. Pavri<BR>Michael E. Coke</B></P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:7pt; font-family:Times New Roman" ALIGN="center"><B>Katherine H. Ku<BR>Wilson Sonsini Goodrich&nbsp;&amp; Rosati, P.C.<BR>650 Page Mill Road<BR>Palo Alto, CA 94304<BR>(650) <FONT
STYLE="white-space:nowrap">493-9300</FONT></B></P></TD></TR>
</TABLE> <P STYLE="font-size:4pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><center> <P STYLE="line-height:6.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1px solid #000000;width:20%">&nbsp;</P></center>
<P STYLE="margin-top:4pt; margin-bottom:0pt; text-indent:8%; font-size:7pt; font-family:Times New Roman"><B>Approximate date of commencement of proposed sale to the public: </B>As soon as practicable after this registration statement is declared
effective. </P> <P STYLE="margin-top:4pt; margin-bottom:0pt; text-indent:8%; font-size:7pt; font-family:Times New Roman">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, check the following box.&nbsp;&nbsp;&#9744; </P> <P STYLE="margin-top:4pt; margin-bottom:0pt; text-indent:8%; font-size:7pt; font-family:Times New Roman">If this Form is filed to register additional securities for
an offering pursuant to Rule 462(b) under the Securities Act, please check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering.&nbsp;&nbsp;&#9744; </P>
<P STYLE="margin-top:4pt; margin-bottom:0pt; text-indent:8%; font-size:7pt; font-family:Times New Roman">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;&#9744; </P> <P STYLE="margin-top:4pt; margin-bottom:0pt; text-indent:8%; font-size:7pt; font-family:Times New Roman">If
this Form is a post-effective amendment filed pursuant to Rule 462(d) 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;&#9744; </P> <P STYLE="margin-top:4pt; margin-bottom:0pt; text-indent:8%; font-size:7pt; font-family:Times New Roman">Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a <FONT
STYLE="white-space:nowrap">non-accelerated</FONT> filer, a smaller reporting company or an emerging growth company. See the definitions of &#147;large accelerated filer,&#148; &#147;accelerated filer,&#148; &#147;smaller reporting company&#148; and
&#147;emerging growth company&#148; in Rule <FONT STYLE="white-space:nowrap">12b-2</FONT> of the Exchange Act. </P> <P STYLE="font-size:4pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD VALIGN="bottom">Large&nbsp;accelerated&nbsp;filer</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&#9744;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">Accelerated&nbsp;filer</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&#9744;</TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="5"></TD>
<TD HEIGHT="5" COLSPAN="2"></TD>
<TD HEIGHT="5" COLSPAN="2"></TD>
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<TD VALIGN="bottom">Non-accelerated filer</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&#9746;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">Smaller&nbsp;reporting&nbsp;company</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&#9744;</TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="5"></TD>
<TD HEIGHT="5" COLSPAN="2"></TD>
<TD HEIGHT="5" COLSPAN="2"></TD>
<TD HEIGHT="5" COLSPAN="2"></TD></TR>
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<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">Emerging growth&nbsp;company</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&#9746;</TD></TR>
</TABLE> <P STYLE="margin-top:4pt; margin-bottom:0pt; text-indent:8%; font-size:7pt; font-family:Times New Roman">If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended
transition period for complying with new or revised financial accounting standards provided pursuant to Section&nbsp;7(a)(2)(B)&nbsp;of the Securities Act.&nbsp;&nbsp;&#9744; </P> <P STYLE="font-size:4pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD COLSPAN="9" VALIGN="bottom"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; border-top:1.00px solid #000000">&nbsp;</P></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:8pt">
<TD VALIGN="bottom" COLSPAN="9" ALIGN="center" STYLE="BORDER-TOP:1px solid #000000"><FONT STYLE="font-size:7pt"><B>CALCULATION OF REGISTRATION FEE</B></FONT></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:7pt">
<TD VALIGN="bottom" ALIGN="center" STYLE="BORDER-TOP:1px solid #000000"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:7pt; font-family:Times New Roman" ALIGN="center"><B>Title of Each Class&nbsp;of</B></P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:7pt; font-family:Times New Roman" ALIGN="center"><B>Securities to be Registered</B></P></TD>
<TD VALIGN="bottom" STYLE=" BORDER-LEFT:1px solid #000000; BORDER-TOP:1px solid #000000">&nbsp;</TD>
<TD VALIGN="bottom" NOWRAP ALIGN="center" STYLE="BORDER-TOP:1px solid #000000"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:7pt; font-family:Times New Roman" ALIGN="center"><B>Amount</B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:7pt; font-family:Times New Roman" ALIGN="center"><B>to be</B></P> <P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:7pt; font-family:Times New Roman" ALIGN="center"><B>Registered<SUP
STYLE="font-size:85%; vertical-align:top">(1)</SUP></B></P></TD>
<TD VALIGN="bottom" STYLE=" BORDER-LEFT:1px solid #000000; BORDER-TOP:1px solid #000000">&nbsp;</TD>
<TD VALIGN="bottom" NOWRAP ALIGN="center" STYLE="BORDER-TOP:1px solid #000000">
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:7pt; font-family:Times New Roman" ALIGN="center"><B>Proposed&nbsp;Maximum<BR>Aggregate&nbsp;Offering&nbsp;Price</B></P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:7pt; font-family:Times New Roman" ALIGN="center"><B>Per Unit<SUP STYLE="font-size:85%; vertical-align:top">(2)</SUP></B></P></TD>
<TD VALIGN="bottom" STYLE=" BORDER-LEFT:1px solid #000000; BORDER-TOP:1px solid #000000">&nbsp;</TD>
<TD VALIGN="bottom" NOWRAP ALIGN="center" STYLE="BORDER-TOP:1px solid #000000"><B>Proposed Maximum<BR>Aggregate&nbsp;Offering&nbsp;Price<SUP STYLE="font-size:85%; vertical-align:top">(1)(2)</SUP></B></TD>
<TD VALIGN="bottom" STYLE=" BORDER-LEFT:1px solid #000000; BORDER-TOP:1px solid #000000">&nbsp;</TD>
<TD VALIGN="bottom" NOWRAP ALIGN="center" STYLE="BORDER-TOP:1px solid #000000"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:7pt; font-family:Times New Roman" ALIGN="center"><B>Amount of</B></P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:7pt; font-family:Times New Roman" ALIGN="center"><B>Registration&nbsp;Fee<SUP STYLE="font-size:85%; vertical-align:top">(3)</SUP></B></P></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:7pt">
<TD VALIGN="top" STYLE="BORDER-TOP:1px solid #000000"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:7pt; font-family:Times New Roman">Common Stock, $0.000004 par value per share</P></TD>
<TD VALIGN="bottom" STYLE=" BORDER-LEFT:1px solid #000000; BORDER-TOP:1px solid #000000">&nbsp;</TD>
<TD VALIGN="bottom" NOWRAP ALIGN="center" STYLE="BORDER-TOP:1px solid #000000">11,500,000</TD>
<TD VALIGN="bottom" STYLE=" BORDER-LEFT:1px solid #000000; BORDER-TOP:1px solid #000000">&nbsp;</TD>
<TD VALIGN="bottom" NOWRAP ALIGN="center" STYLE="BORDER-TOP:1px solid #000000">$17.00</TD>
<TD VALIGN="bottom" STYLE=" BORDER-LEFT:1px solid #000000; BORDER-TOP:1px solid #000000">&nbsp;</TD>
<TD VALIGN="bottom" NOWRAP ALIGN="center" STYLE="BORDER-TOP:1px solid #000000">$195,500,000</TD>
<TD VALIGN="bottom" STYLE=" BORDER-LEFT:1px solid #000000; BORDER-TOP:1px solid #000000">&nbsp;</TD>
<TD VALIGN="bottom" NOWRAP ALIGN="center" STYLE="BORDER-TOP:1px solid #000000">$25,376</TD></TR>
<TR STYLE="font-size:1px; ">
<TD COLSPAN="9" VALIGN="bottom"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; border-top:1.00px solid #000000">&nbsp;</P></TD></TR>
<TR STYLE="font-size:1px; ">
<TD COLSPAN="9" VALIGN="bottom"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; border-top:1.00px solid #000000">&nbsp;</P></TD></TR>
</TABLE> <P STYLE="font-size:4pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:7pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="3%" VALIGN="top" ALIGN="left">(1)</TD>
<TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:7pt; font-family:Times New Roman; " ALIGN="left">Includes 1,500,000 shares of common stock that the underwriters have the option to purchase. See
&#147;Underwriting.&#148; </P></TD></TR></TABLE> <P STYLE="font-size:4pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:7pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="3%" VALIGN="top" ALIGN="left">(2)</TD>
<TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:7pt; font-family:Times New Roman; " ALIGN="left">Estimated solely for the purpose of calculating the registration fee under Rule 457(a) of the Securities Act of
1933, as amended. </P></TD></TR></TABLE> <P STYLE="font-size:4pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:7pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="3%" VALIGN="top" ALIGN="left">(3)</TD>
<TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:7pt; font-family:Times New Roman; " ALIGN="left">Previously paid. </P></TD></TR></TABLE>
<P STYLE="margin-top:4pt; margin-bottom:0pt; text-indent:8%; font-size:7pt; font-family:Times New Roman"><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&nbsp;8(a) of the Securities Act of 1933 or until the Registration Statement shall
become effective on such date as the Commission, acting pursuant to said Section&nbsp;8(a), may determine. </B></P> <P STYLE="font-size:3pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<P STYLE="line-height:1.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1px solid #000000">&nbsp;</P>
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  <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">EXPLANATORY NOTE </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">This Amendment No.&nbsp;2 to this registration statement is being filed solely to file the exhibit filed herewith. The prospectus is unchanged and has been
omitted. </P>
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>PART II </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>INFORMATION NOT REQUIRED IN PROSPECTUS </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>Item&nbsp;13. Other Expenses of Issuance and Distribution. </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">The following table shows the costs and expenses, other than underwriting discounts and commissions, payable in connection with the sale and
distribution of the securities being registered. Except as otherwise noted, we will pay all of these amounts. All amounts except the SEC registration fee, the FINRA fee and the stock exchange listing fee are estimated. </P>
<P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="72%" BORDER="0" STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" ALIGN="center">


<TR>

<TD WIDTH="82%"></TD>

<TD VALIGN="bottom" WIDTH="6%"></TD>
<TD></TD>
<TD></TD>
<TD></TD></TR>


<TR BGCOLOR="#cceeff" STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">SEC Registration Fee</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">25,376</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">FINRA Filing Fee</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">29,825</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD></TR>
<TR BGCOLOR="#cceeff" STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">NYSE Listing Fee</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">150,000</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Printing and Engraving Costs</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">525,000</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD></TR>
<TR BGCOLOR="#cceeff" STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Legal Fees and Expenses</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">1,750,000</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Accounting Fees and Expenses</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">1,200,000</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD></TR>
<TR BGCOLOR="#cceeff" STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Transfer Agent and Registrar Fees and Expenses</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">25,000</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Miscellaneous Expenses</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">100,000</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD></TR>
<TR STYLE="font-size:1px; ">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
<TR BGCOLOR="#cceeff" STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="bottom"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Total</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">$</TD>
<TD VALIGN="bottom" ALIGN="right">3,805,201</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD></TR>
<TR STYLE="font-size:1px; ">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
</TABLE> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>Item&nbsp;14. Indemnification of Directors and Officers. </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">Our amended and restated certificate of incorporation will provide that, to the fullest extent permitted by the Delaware General Corporate
Law, or the DGCL, no director shall be personally liable to our company or its stockholders for monetary damages for breach of fiduciary duty as a director.&nbsp;Our amended and restated bylaws will provide that each person who was or is party or is
threatened to be made a party to, or was or is otherwise involved in, any threatened, pending or completed proceeding by reason of the fact that he or she is or was a director or officer of our company or was serving at the request of our company as
a director, officer, employee, agent or trustee of another entity shall be indemnified and held harmless by us to the full extent authorized by the DGCL against all expense, liability and loss actually and reasonably incurred in connection
therewith, subject to certain limitations. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">Section&nbsp;145(a) of the DGCL authorizes a corporation to indemnify any person who was or is
a party, or is threatened to be made a party, to a threatened, pending or completed action, suit or proceeding, whether civil, criminal, administrative or investigative (other than an action by or in the right of the corporation), by reason of the
fact that the person is or was a director, officer, employee or agent of the corporation, or is or was serving at the request of the corporation as a director, officer, employee or agent of another corporation, partnership, joint venture, trust or
other enterprise, against expenses (including attorneys&#146; fees), judgments, fines and amounts paid in settlement actually and reasonably incurred by the person in connection with such action, suit or proceeding, if the person acted in good faith
and in a manner the person reasonably believed to be in, or not opposed to, the best interests of the corporation and, with respect to any criminal action or proceeding, had no reasonable cause to believe the person&#146;s conduct was unlawful. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">Section&nbsp;145(b) of the DGCL provides in relevant part that a corporation may indemnify any person who was or is a party or is threatened
to be made a party to any threatened, pending or completed action or suit by or in the right of the corporation to procure a judgment in its favor by reason of the fact that the person is or was a director, officer, employee or agent of the
corporation, or is or was serving at the request of the corporation as a director, officer, employee or agent of another corporation, partnership, joint venture, trust or other enterprise against expenses (including attorneys&#146; fees) actually
and reasonably incurred by the person in connection with the defense or settlement of such action or suit if the person acted in good faith and in a manner the person </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">II-1 </P>

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reasonably believed to be in or not opposed to the best interests of the corporation and except that no indemnification shall be made in respect of any claim, issue or matter as to which such
person shall have been adjudged to be liable to the corporation unless and only to the extent that the Court of Chancery or the court in which such action or suit was brought shall determine upon application that, despite the adjudication of
liability but in view of all the circumstances of the case, such person is fairly and reasonably entitled to indemnity for such expenses which the Court of Chancery or such other court shall deem proper. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">The DGCL also provides that indemnification under Sections 145(a) and (b)&nbsp;can only be made upon a determination that indemnification of
the present or former director, officer or employee or agent is proper in the circumstances because such person has met the applicable standard of conduct set forth in Sections 145(a) and (b). Such determination shall be made, with respect to a
person who is a director or officer at the time of such determination, (1)&nbsp;by a majority vote of directors who are not a party to the action at issue (even though less than a quorum), (2) by a majority vote of a designated committee of these
directors (even though less than a quorum), (3) if there are no such directors, or these directors authorize, by the written opinion of independent legal counsel or (4)&nbsp;by the stockholders. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">Section&nbsp;145(g) of the DGCL also empowers a corporation to purchase and maintain insurance on behalf of any person who is or was a
director, officer, employee or agent of the corporation, or is or was serving at the request of the corporation as a director, officer, employee or agent of another corporation, partnership, joint venture, trust or other enterprise against any
liability asserted against such person and incurred by such person in any such capacity, or arising out of such person&#146;s status as such, whether or not the corporation would have the power to indemnify such person against such liability under
Section&nbsp;145 of the DGCL. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">Section&nbsp;102(b)(7) of the DGCL permits a corporation to provide for eliminating or limiting the
personal liability of one of its directors for any monetary damages related to a breach of fiduciary duty as a director, as long as the corporation does not eliminate or limit the liability of a director for acts or omissions which (1)&nbsp;were in
bad faith, (2)&nbsp;were the result of active and deliberate dishonesty and were material to the cause of action so adjudicated, (3)&nbsp;the director derived an improper personal benefit from (such as a financial profit or other advantage to which
such director was not legally entitled) or (4)&nbsp;breached the director&#146;s duty of loyalty. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">We have entered into indemnification
agreements with each of our executive officers and directors that provide, in general, that we will indemnify them to the fullest extent permitted by law in connection with their service to us or on our behalf. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">The proposed form of Underwriting Agreement to be filed as Exhibit 1.1 to this registration statement on Form
<FONT STYLE="white-space:nowrap">S-1</FONT> will provide for indemnification of our directors and officers by the underwriters against certain liabilities. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>Item&nbsp;15. Recent Sale of Unregistered Securities. </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">We have not sold any securities, registered or otherwise, within the past three years, except: </P>
<P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="9%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top"> <P ALIGN="left" STYLE=" margin-top:0pt ; margin-bottom:0pt; font-family:Times New Roman; font-size:10pt">On July 31, 2017, the Company issued an aggregate of 2,024 shares (or 50,600 shares after adjusting for our 25:1
stock split in December 2017) of common stock to two investors at an aggregate purchase price of $574,816. This issuance was exempt from the registration requirements of the Securities Act pursuant to Section 4(a)(2) thereof as a transaction by an
issuer not involving any public offering. </P></TD></TR></TABLE> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="9%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top"> <P ALIGN="left" STYLE=" margin-top:0pt ; margin-bottom:0pt; font-family:Times New Roman; font-size:10pt">On July 31, 2017, the Company issued an aggregate of 879 shares (or 21,975 shares after adjusting for our 25:1
stock split in December 2017) of common stock to one investor at an aggregate purchase price of $249,636. This issuance was exempt from the registration requirements of the Securities Act pursuant to Section 4(a)(2) thereof as a transaction by an
issuer not involving any public offering. </P></TD></TR></TABLE>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">II-2 </P>

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<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="9%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top"> <P ALIGN="left" STYLE=" margin-top:0pt ; margin-bottom:0pt; font-family:Times New Roman; font-size:10pt">On October 3, 2017, the Company issued an aggregate of 733 shares (or 18,325 shares after adjusting for our 25:1
stock split in December 2017) of common stock to three investors at an aggregate purchase price of $249,953. This issuance was exempt from the registration requirements of the Securities Act pursuant to Section 4(a)(2) thereof as a transaction by an
issuer not involving any public offering. </P></TD></TR></TABLE> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="9%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top"> <P ALIGN="left" STYLE=" margin-top:0pt ; margin-bottom:0pt; font-family:Times New Roman; font-size:10pt">On October 31, 2017, the Company issued an aggregate of 3,274 shares (or 81,850 shares after adjusting for our
25:1 stock split in December 2017) of common stock to one investor at an aggregate purchase price of $1,181,914. This issuance was exempt from the registration requirements of the Securities Act pursuant to Section 4(a)(2) thereof as a transaction
by an issuer not involving any public offering. </P></TD></TR></TABLE> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="9%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top"> <P ALIGN="left" STYLE=" margin-top:0pt ; margin-bottom:0pt; font-family:Times New Roman; font-size:10pt">On December 22, 2017, the Company issued an aggregate of 16,620 shares of common stock to one investor at an
aggregate purchase price of $239,993. This issuance was exempt from the registration requirements of the Securities Act pursuant to Section 4(a)(2) thereof as a transaction by an issuer not involving any public offering. </P></TD></TR></TABLE>
<P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="9%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top"> <P ALIGN="left" STYLE=" margin-top:0pt ; margin-bottom:0pt; font-family:Times New Roman; font-size:10pt">On January 31, 2018, the Company issued an aggregate of 52,857 shares of common stock to twelve investors at an
aggregate purchase price of $924,998. This issuance was exempt from the registration requirements of the Securities Act pursuant to Section 4(a)(2) thereof as a transaction by an issuer not involving any public offering. </P></TD></TR></TABLE>
<P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="9%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top"> <P ALIGN="left" STYLE=" margin-top:0pt ; margin-bottom:0pt; font-family:Times New Roman; font-size:10pt">On February 9, 2018, the Company issued an aggregate of 35,050 shares of common stock to three investors at an
aggregate purchase price of $630,900. This issuance was exempt from the registration requirements of the Securities Act pursuant to Section 4(a)(2) thereof as a transaction by an issuer not involving any public offering. </P></TD></TR></TABLE>
<P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="9%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top"> <P ALIGN="left" STYLE=" margin-top:0pt ; margin-bottom:0pt; font-family:Times New Roman; font-size:10pt">On April 2, 2018, the Company issued an aggregate of 24,166 shares of common stock to two investors at an
aggregate purchase price of $434,988. This issuance was exempt from the registration requirements of the Securities Act pursuant to Section 4(a)(2) thereof as a transaction by an issuer not involving any public offering. </P></TD></TR></TABLE>
<P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="9%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top"> <P ALIGN="left" STYLE=" margin-top:0pt ; margin-bottom:0pt; font-family:Times New Roman; font-size:10pt">On October&nbsp;19, 2018, the Company issued an aggregate of 12,000 shares of Series <FONT
STYLE="white-space:nowrap">A-1</FONT> preferred stock and a warrant to purchase 534,240 shares of common stock to an accredited investor at an aggregate purchase price of $120.0 million. The issuance of the Series
<FONT STYLE="white-space:nowrap">A-1</FONT> preferred stock and the warrant to purchase common stock was exempt from the registration requirements of the Securities Act pursuant to Section&nbsp;4(a)(2) thereof as a transaction by an issuer not
involving any public offering. </P></TD></TR></TABLE> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="9%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top"> <P ALIGN="left" STYLE=" margin-top:0pt ; margin-bottom:0pt; font-family:Times New Roman; font-size:10pt">On November 9, 2018, the Company issued an aggregate of 85,201 shares of common stock to one investor at an
aggregate purchase price of $2,027,784. This issuance was exempt from the registration requirements of the Securities Act pursuant to Section 4(a)(2) thereof as a transaction by an issuer not involving any public offering. </P></TD></TR></TABLE>
<P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="9%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top"> <P ALIGN="left" STYLE=" margin-top:0pt ; margin-bottom:0pt; font-family:Times New Roman; font-size:10pt">On November 30, 2018, the Company issued an aggregate of 67,308 shares of common stock to four investors at an
aggregate purchase price of $1,615,392. This issuance was exempt from the registration requirements of the Securities Act pursuant to Section 4(a)(2) thereof as a transaction by an issuer not involving any public offering. </P></TD></TR></TABLE>
<P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="9%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top"> <P ALIGN="left" STYLE=" margin-top:0pt ; margin-bottom:0pt; font-family:Times New Roman; font-size:10pt">On April 30, 2019, the Company issued an aggregate of 125,031 shares of common stock to six investors at an
aggregate purchase price of $3,363,333. This issuance was exempt from the </P></TD></TR></TABLE>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">II-3 </P>

</DIV></Center>


<p style="margin-top:1em; margin-bottom:0em; page-break-before:always">
<HR SIZE="3" style="COLOR:#999999" WIDTH="100%" ALIGN="CENTER">


<Center><DIV STYLE="width:8.5in" align="left">

<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="12%">&nbsp;</TD>
<TD VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-family:Times New Roman; font-size:10pt">
registration requirements of the Securities Act pursuant to Section 4(a)(2) thereof as a transaction by an issuer not involving any public offering. </P></TD></TR></TABLE>
<P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="9%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top"> <P ALIGN="left" STYLE=" margin-top:0pt ; margin-bottom:0pt; font-family:Times New Roman; font-size:10pt">On July 31, 2019, the Company issued an aggregate of 25,408 shares of common stock to five investors at an
aggregate purchase price of $683,475. This issuance was exempt from the registration requirements of the Securities Act pursuant to Section&nbsp;4(a)(2) thereof as a transaction by an issuer not involving any public offering. </P></TD></TR></TABLE>
<P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="9%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top"> <P ALIGN="left" STYLE=" margin-top:0pt ; margin-bottom:0pt; font-family:Times New Roman; font-size:10pt">Between October 31, 2019 and November 8, 2019, the Company issued an aggregate of 42,415 shares of common stock
to nine investors at an aggregate purchase price of $1,340,314. This issuance was exempt from the registration requirements of the Securities Act pursuant to Section&nbsp;4(a)(2) thereof as a transaction by an issuer not involving any public
offering. </P></TD></TR></TABLE> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="9%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top"> <P ALIGN="left" STYLE=" margin-top:0pt ; margin-bottom:0pt; font-family:Times New Roman; font-size:10pt">On April&nbsp;13, 2020, the Company issued an aggregate of 17,500 shares of Series&nbsp;A-2 preferred stock with
a par value of $0.0001 per share and a detachable warrant to purchase up to 1,351,960&nbsp;shares of the Company&#146;s common stock with a 10-year life, in exchange for $175.0&nbsp;million. The issuance of the Series&nbsp;A-2 preferred stock and
the warrant to purchase common stock was exempt from the registration requirements of the Securities Act pursuant to Section&nbsp;4(a)(2) thereof as a transaction by an issuer not involving any public offering. </P></TD></TR></TABLE>
<P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="9%">&nbsp;</TD>
<TD WIDTH="2%" VALIGN="top" ALIGN="left">&#149;</TD>
<TD WIDTH="1%" VALIGN="top">&nbsp;</TD>
<TD ALIGN="left" VALIGN="top"> <P ALIGN="left" STYLE=" margin-top:0pt ; margin-bottom:0pt; font-family:Times New Roman; font-size:10pt">On April&nbsp;13, 2020, the Company issued an aggregate of 791,139 shares of common stock to an accredited
investor as consideration for the acquisition of The Center for Toxicology and Environmental Health, L.L.C. This issuance was exempt from the registration requirements of the Securities Act pursuant to Section&nbsp;4(a)(2) thereof as a transaction
by an issuer not involving any public offering. </P></TD></TR></TABLE> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>Item&nbsp;16. Exhibits and Financial Data Schedules. </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><I>(a) Exhibit Index </I></B></P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">See the
Exhibit Index immediately preceding the signature page hereto for a list of exhibits filed as part of this registration statement on <FONT STYLE="white-space:nowrap">Form&nbsp;S-1,</FONT> which Exhibit Index is incorporated herein by reference. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B><I>(b) Financial Statement Schedule </I></B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">None. Financial statement schedules have been omitted because the information called for is not required or is shown either in the audited
consolidated financial statements or in the notes thereto included elsewhere in this registration statement on <FONT STYLE="white-space:nowrap">Form&nbsp;S-1.</FONT> </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>Item&nbsp;17. Undertakings. </B></P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">(a) The
undersigned registrant hereby undertakes to provide to the underwriters at the closing specified in the underwriting agreements, certificates in such denominations and registered in such names as required by the underwriters to permit prompt
delivery to each purchaser. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">(b) 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 Act 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 Act and will be governed by the final
adjudication of such issue. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">II-4 </P>

</DIV></Center>


<p style="margin-top:1em; margin-bottom:0em; page-break-before:always">
<HR SIZE="3" style="COLOR:#999999" WIDTH="100%" ALIGN="CENTER">


<Center><DIV STYLE="width:8.5in" align="left">
 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">(c) The undersigned registrant hereby undertakes that: </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">(i) For purposes of determining any liability under the Securities Act of 1933, the information omitted from the form of prospectus filed as
part of this registration statement in reliance upon Rule 430A and contained in a form of prospectus filed by the registrant pursuant to Rule 424(b)(1) or (4)&nbsp;or 497(h) under the Securities Act of 1933 shall be deemed to be part of this
registration statement as of the time it was declared effective. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">(ii) For the purpose of determining any liability under the Securities
Act of 1933, each post-effective amendment that contains a form of prospectus 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. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">II-5 </P>

</DIV></Center>


<p style="margin-top:1em; margin-bottom:0em; page-break-before:always">
<HR SIZE="3" style="COLOR:#999999" WIDTH="100%" ALIGN="CENTER">


<Center><DIV STYLE="width:8.5in" align="left">
 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>EXHIBIT INDEX </B></P>
<P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="100%" BORDER="0" STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" ALIGN="center">


<TR>

<TD></TD>

<TD VALIGN="bottom" WIDTH="6%"></TD>
<TD WIDTH="91%"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:8pt">
<TD VALIGN="bottom" NOWRAP ALIGN="center"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; border-bottom:1.00px solid #000000; display:table-cell; font-size:8pt; font-family:Times New Roman; " ALIGN="center"><B>Exhibit<BR>No.</B></P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" NOWRAP ALIGN="center"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; border-bottom:1.00px solid #000000; display:table-cell; font-size:8pt; font-family:Times New Roman; " ALIGN="center"><B>Description of
Exhibit</B></P></TD></TR>


<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>&nbsp;&nbsp;1.1</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"><A HREF="d41822dex11.htm">Form of Underwriting Agreement. </A></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>&nbsp;&nbsp;2.1**</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"><A HREF="http://www.sec.gov/Archives/edgar/data/1643615/000119312520182614/d792332dex21.htm">Membership Interest Purchase Agreement among CTEH Holdings, LLC, Montrose Planning&nbsp;
&amp; Permitting, LLC, Montrose Environmental Group, Inc., The Center for Toxicology and Environmental Health, L.L.C. and the Seller Indemnifying members dated March&nbsp;28, 2020. </A></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>&nbsp;&nbsp;3.1**</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"><A HREF="http://www.sec.gov/Archives/edgar/data/1643615/000119312520182614/d792332dex31.htm">Certificate of Incorporation of the Registrant.</A></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>&nbsp;&nbsp;3.2**</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"><A HREF="http://www.sec.gov/Archives/edgar/data/1643615/000119312520182614/d792332dex32.htm">Certificate of Amendment of Certificate of Incorporation of the Registrant dated December&nbsp;6, 2017. </A></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>&nbsp;&nbsp;3.3**</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"><A HREF="http://www.sec.gov/Archives/edgar/data/1643615/000119312520182614/d792332dex33.htm">Certificate of Amendment of Certificate of Incorporation of the Registrant dated April&nbsp;13, 2020. </A></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>&nbsp;&nbsp;3.4**</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"><A HREF="http://www.sec.gov/Archives/edgar/data/1643615/000119312520182614/d792332dex34.htm">Amended and Restated Certificate of Designation of Cumulative Series <FONT STYLE="white-space:nowrap">A-1</FONT> Preferred Stock.
</A></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>&nbsp;&nbsp;3.5**</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"><A HREF="http://www.sec.gov/Archives/edgar/data/1643615/000119312520182614/d792332dex35.htm">Certificate of Designation of Cumulative Series&nbsp;A-2 Preferred Stock. </A></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>&nbsp;&nbsp;3.6**</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"><A HREF="http://www.sec.gov/Archives/edgar/data/1643615/000119312520182614/d792332dex36.htm">Bylaws of the Registrant. </A></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>&nbsp;&nbsp;3.7**</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"><A HREF="http://www.sec.gov/Archives/edgar/data/1643615/000119312520192567/d792332dex37.htm">Amended and Restated Certificate of Incorporation of the Registrant to be adopted. </A></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>&nbsp;&nbsp;3.8**</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"><A HREF="http://www.sec.gov/Archives/edgar/data/1643615/000119312520192567/d792332dex38.htm">Amended and Restated Bylaws of the Registrant to be adopted. </A></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>&nbsp;&nbsp;4.1**</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"><A HREF="http://www.sec.gov/Archives/edgar/data/1643615/000119312520182614/d792332dex41.htm">Third Amended and Restated Investor Rights Agreement dated April 13, 2020 by and among Montrose Environmental Group, Inc., OCM Montrose Holdings,
 L.P., OCM Montrose&nbsp;II Holdings, L.P. and the common stockholders party thereto. </A></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>&nbsp;&nbsp;4.2**</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:10pt; font-family:Times New Roman"><A HREF="http://www.sec.gov/Archives/edgar/data/1643615/000119312520182614/d792332dex42.htm">Third Amended and Restated Right of First Refusal and
 Co-Sale Agreement dated April 13, 2020, by and among Montrose Environmental Group, Inc., OCM Montrose Holdings, L.P., OCM Montrose II Holdings, L.P. and the common stockholders party thereto. </A></P></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>&nbsp;&nbsp;4.3**</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:10pt; font-family:Times New Roman"><A HREF="http://www.sec.gov/Archives/edgar/data/1643615/000119312520182614/d792332dex43.htm">Third Amended and Restated Voting and Drag Along Agreement
dated April 13, 2020 by and among Montrose Environmental Group, Inc., OCM Montrose Holdings, L.P., OCM Montrose II Holdings, L.P. and the common stockholders party thereto. </A></P></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>&nbsp;&nbsp;4.4**</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"><A HREF="http://www.sec.gov/Archives/edgar/data/1643615/000119312520192567/d792332dex44.htm">Form of Stock Purchase Warrant. </A></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>&nbsp;&nbsp;4.5**</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"><A HREF="http://www.sec.gov/Archives/edgar/data/1643615/000119312520182614/d792332dex45.htm">Stock Purchase Warrant issued to OCM Montrose Holdings, L.P. dated October&nbsp;19, 2018. </A></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>&nbsp;&nbsp;4.6**</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"><A HREF="http://www.sec.gov/Archives/edgar/data/1643615/000119312520182614/d792332dex46.htm">Stock Purchase Warrant issued to OCM Montrose&nbsp;II Holdings, L.P. dated April&nbsp;13, 2020. </A></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>&nbsp;&nbsp;5.1**</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"><A HREF="http://www.sec.gov/Archives/edgar/data/1643615/000119312520192567/d792332dex51.htm">Opinion of Gibson, Dunn&nbsp;&amp; Crutcher LLP. </A></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>10.1<SUP STYLE="font-size:85%; vertical-align:top">#</SUP>**</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"><A HREF="http://www.sec.gov/Archives/edgar/data/1643615/000119312520182614/d792332dex101.htm">Form of Indemnification Agreement entered into with Directors and Executive Officers. </A></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>10.2**</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"><A HREF="http://www.sec.gov/Archives/edgar/data/1643615/000119312520182614/d792332dex102.htm">Fifth Amended and Restated Credit Facility dated July&nbsp;
24, 2019 with Bank of America, N.A. as administrative agent and the lenders party thereto. </A></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>10.3**</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"><A HREF="http://www.sec.gov/Archives/edgar/data/1643615/000119312520182614/d792332dex103.htm">Revolving Commitment Increase Agreement, dated as of October 22, 2019, by and among Montrose Environmental Group, Inc., as the parent borrower,
 1203524 B.C. Ltd., as the Canadian Borrower, the Guarantors, Bank of the West, and Bank of America, N.A., as administrative agent, swing line lender and L/C issuer. </A></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>10.4**</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:10pt; font-family:Times New Roman"><A HREF="http://www.sec.gov/Archives/edgar/data/1643615/000119312520182614/d792332dex104.htm">Credit Agreement dated as of April&nbsp;
13, 2020 by and among Montrose Environmental Group, Inc., as the parent borrower, 1203524 B.C. Ltd., as the Canadian borrower, certain subsidiaries of the parent borrower, as the guarantors, Capital One, National Association, as administrative agent, revolver
agent, swing line lender and L/C issuer, and the lenders party thereto. </A></P></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>10.5<SUP STYLE="font-size:85%; vertical-align:top">#</SUP>**</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"><A HREF="http://www.sec.gov/Archives/edgar/data/1643615/000119312520182614/d792332dex105.htm">Offer Letter by and between Montrose Environmental Group, Inc. and Vijay Manthripragada, dated July&nbsp;13, 2015. </A></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>10.6<SUP STYLE="font-size:85%; vertical-align:top">#</SUP>**</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"><A HREF="http://www.sec.gov/Archives/edgar/data/1643615/000119312520182614/d792332dex106.htm">Executive Compensation Letter by and between Montrose Environmental Group, Inc. and Vijay Manthripragada, dated June&nbsp;23, 2016.
</A></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>10.7<SUP STYLE="font-size:85%; vertical-align:top">#</SUP>**</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"><A HREF="http://www.sec.gov/Archives/edgar/data/1643615/000119312520182614/d792332dex107.htm">Offer Letter by and between Montrose Environmental Group, Inc. and Allan Dicks, dated August&nbsp;8, 2016.
</A></TD></TR></TABLE>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">II-6 </P>

</DIV></Center>


<p style="margin-top:1em; margin-bottom:0em; page-break-before:always">
<HR SIZE="3" style="COLOR:#999999" WIDTH="100%" ALIGN="CENTER">


<Center><DIV STYLE="width:8.5in" align="left">

<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="100%" BORDER="0" STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" ALIGN="center">


<TR>

<TD></TD>

<TD VALIGN="bottom" WIDTH="5%"></TD>
<TD WIDTH="91%"></TD></TR>

<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:8pt">
<TD VALIGN="bottom" NOWRAP ALIGN="center"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; border-bottom:1.00px solid #000000; display:table-cell; font-size:8pt; font-family:Times New Roman; " ALIGN="center"><B>Exhibit<BR>No.</B></P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" NOWRAP ALIGN="center"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; border-bottom:1.00px solid #000000; display:table-cell; font-size:8pt; font-family:Times New Roman; " ALIGN="center"><B>Description of
Exhibit</B></P></TD></TR>


<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>10.8<SUP STYLE="font-size:85%; vertical-align:top">#</SUP>**</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"><A HREF="http://www.sec.gov/Archives/edgar/data/1643615/000119312520182614/d792332dex108.htm">Executive Compensation Letter by and between Montrose Environmental Group, Inc. and Allan Dicks, dated August&nbsp;8, 2016. </A></TD></TR>

<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>10.9<SUP STYLE="font-size:85%; vertical-align:top">#</SUP>**</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"><A HREF="http://www.sec.gov/Archives/edgar/data/1643615/000119312520182614/d792332dex109.htm">Offer Letter by and between Montrose Environmental Group, Inc. and Nasym Afsari, dated October&nbsp;14, 2014. </A></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>10.10<SUP STYLE="font-size:85%; vertical-align:top">#</SUP>**</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"><A HREF="http://www.sec.gov/Archives/edgar/data/1643615/000119312520182614/d792332dex1010.htm">Executive Compensation Letter by and between Montrose Environmental Group, Inc. and Nasym Afsari, dated June&nbsp;23, 2016.
</A></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>10.11<SUP STYLE="font-size:85%; vertical-align:top">#</SUP>**</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"><A HREF="http://www.sec.gov/Archives/edgar/data/1643615/000119312520182614/d792332dex1011.htm">Amendment to the Executive Compensation Letter by and between Montrose Environmental Group, Inc. and Nasym Afsari, dated September&nbsp;
14, 2017. </A></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>10.12<SUP STYLE="font-size:85%; vertical-align:top">#</SUP>**</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"><A HREF="http://www.sec.gov/Archives/edgar/data/1643615/000119312520182614/d792332dex1012.htm">Offer Letter by and between Montrose Environmental Group, Inc. and Joshua M. LeMaire, dated July&nbsp;2, 2015. </A></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>10.13<SUP STYLE="font-size:85%; vertical-align:top">#</SUP>**</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"><A HREF="http://www.sec.gov/Archives/edgar/data/1643615/000119312520182614/d792332dex1013.htm">Executive Compensation Letter by and between Montrose Environmental Group, Inc. and Joshua M. LeMaire, dated June&nbsp;23, 2016.
</A></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>10.14<SUP STYLE="font-size:85%; vertical-align:top">#</SUP>**</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"><A HREF="http://www.sec.gov/Archives/edgar/data/1643615/000119312520182614/d792332dex1014.htm">Offer Letter by and between Montrose Environmental Group, Inc. and Jose&nbsp;M. Revuelta, dated March&nbsp;4, 2014. </A></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>10.15<SUP STYLE="font-size:85%; vertical-align:top">#</SUP>**</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"><A HREF="http://www.sec.gov/Archives/edgar/data/1643615/000119312520182614/d792332dex1015.htm">Executive Compensation Letter by and between Montrose Environmental Group, Inc. and Jose&nbsp;M. Revuelta, dated June&nbsp;23, 2016.
</A></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>10.16<SUP STYLE="font-size:85%; vertical-align:top">#</SUP>**</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"><A HREF="http://www.sec.gov/Archives/edgar/data/1643615/000119312520182614/d792332dex1016.htm">Montrose Environmental Group, Inc. Amended and Restated 2013 Stock Option Plan. </A></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>10.17<SUP STYLE="font-size:85%; vertical-align:top">#</SUP>**</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"><A HREF="http://www.sec.gov/Archives/edgar/data/1643615/000119312520182614/d792332dex1017.htm">Amendment No.&nbsp;1 to Montrose Environmental Group, Inc. Amended and Restated 2013 Stock Option Plan. </A></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>10.18<SUP STYLE="font-size:85%; vertical-align:top">#</SUP>**</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"><A HREF="http://www.sec.gov/Archives/edgar/data/1643615/000119312520182614/d792332dex1018.htm">Amendment No.&nbsp;2 to Montrose Environmental Group, Inc. Amended and Restated 2013 Stock Option Plan. </A></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>10.19<SUP STYLE="font-size:85%; vertical-align:top">#</SUP>**</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"><A HREF="http://www.sec.gov/Archives/edgar/data/1643615/000119312520182614/d792332dex1019.htm">Amendment No.&nbsp;3 to Montrose Environmental Group, Inc. Amended and Restated 2013 Stock Option Plan. </A></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>10.20<SUP STYLE="font-size:85%; vertical-align:top">#</SUP>**</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"><A HREF="http://www.sec.gov/Archives/edgar/data/1643615/000119312520182614/d792332dex1020.htm">Amendment No.&nbsp;4 to Montrose Environmental Group, Inc. Amended and Restated 2013 Stock Option Plan. </A></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>10.21<SUP STYLE="font-size:85%; vertical-align:top">#</SUP>**</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"><A HREF="http://www.sec.gov/Archives/edgar/data/1643615/000119312520182614/d792332dex1021.htm">Amendment No.&nbsp;5 to Montrose Environmental Group, Inc. Amended and Restated 2013 Stock Option Plan. </A></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>10.22<SUP STYLE="font-size:85%; vertical-align:top">#</SUP>**</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"><A HREF="http://www.sec.gov/Archives/edgar/data/1643615/000119312520182614/d792332dex1022.htm">Amendment No.&nbsp;6 to Montrose Environmental Group, Inc. Amended and Restated 2013 Stock Option Plan. </A></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>10.23<SUP STYLE="font-size:85%; vertical-align:top">#</SUP>**</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"><A HREF="http://www.sec.gov/Archives/edgar/data/1643615/000119312520182614/d792332dex1023.htm">Amendment No.&nbsp;7 to Montrose Environmental Group, Inc. Amended and Restated 2013 Stock Option Plan. </A></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>10.24<SUP STYLE="font-size:85%; vertical-align:top">#</SUP>**</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"><A HREF="http://www.sec.gov/Archives/edgar/data/1643615/000119312520182614/d792332dex1024.htm">Amendment No.&nbsp;8 to Montrose Environmental Group, Inc. Amended and Restated 2013 Stock Option Plan. </A></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>10.25<SUP STYLE="font-size:85%; vertical-align:top">#</SUP>**</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"><A HREF="http://www.sec.gov/Archives/edgar/data/1643615/000119312520182614/d792332dex1025.htm">Form of Option Award Agreement under the Montrose Environmental Group, Inc. Amended and Restated 2013 Stock Option Plan. </A></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>10.26<SUP STYLE="font-size:85%; vertical-align:top">#</SUP>**</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"><A HREF="http://www.sec.gov/Archives/edgar/data/1643615/000119312520192567/d792332dex1026.htm">Montrose Environmental Group, Inc. Amended and Restated 2017 Stock Incentive Plan. </A></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>10.27<SUP STYLE="font-size:85%; vertical-align:top">#</SUP>**</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"><A HREF="http://www.sec.gov/Archives/edgar/data/1643615/000119312520182614/d792332dex1028.htm">Form of Grant Notice and Standard Terms and Conditions for Stock Options under the Montrose Environmental Group, Inc. Amended and Restated 2017
 Stock Incentive Plan. </A></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>10.28<SUP STYLE="font-size:85%; vertical-align:top">#</SUP>**</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"><A HREF="http://www.sec.gov/Archives/edgar/data/1643615/000119312520182614/d792332dex1029.htm">Form of Grant Notice and Standard Terms and Conditions for Restricted Stock under the Montrose Environmental Group, Inc. Amended and Restated
 2017 Stock Incentive Plan. </A></TD></TR></TABLE>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">II-7 </P>

</DIV></Center>


<p style="margin-top:1em; margin-bottom:0em; page-break-before:always">
<HR SIZE="3" style="COLOR:#999999" WIDTH="100%" ALIGN="CENTER">


<Center><DIV STYLE="width:8.5in" align="left">

<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="100%" BORDER="0" STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" ALIGN="center">


<TR>

<TD></TD>

<TD VALIGN="bottom" WIDTH="5%"></TD>
<TD WIDTH="91%"></TD></TR>

<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:8pt">
<TD VALIGN="bottom" NOWRAP ALIGN="center"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; border-bottom:1.00px solid #000000; display:table-cell; font-size:8pt; font-family:Times New Roman; " ALIGN="center"><B>Exhibit<BR>No.</B></P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" NOWRAP ALIGN="center"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; border-bottom:1.00px solid #000000; display:table-cell; font-size:8pt; font-family:Times New Roman; " ALIGN="center"><B>Description of
Exhibit</B></P></TD></TR>


<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>10.29<SUP STYLE="font-size:85%; vertical-align:top">#</SUP>**</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"><A HREF="http://www.sec.gov/Archives/edgar/data/1643615/000119312520182614/d792332dex1030.htm">Form of Confidential Information, <FONT STYLE="white-space:nowrap">Non-Solicitation</FONT> and <FONT STYLE="white-space:nowrap">Non-Compete
</FONT> Agreement (California). </A></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>10.30<SUP STYLE="font-size:85%; vertical-align:top">#</SUP>**</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:10pt; font-family:Times New Roman"><A HREF="http://www.sec.gov/Archives/edgar/data/1643615/000119312520182614/d792332dex1031.htm">Form of Confidential Information, Non-Solicitation
 and Non-Compete Agreement (Ohio). </A></P></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>10.31<SUP STYLE="font-size:85%; vertical-align:top">#</SUP>**</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"><A HREF="http://www.sec.gov/Archives/edgar/data/1643615/000119312520182614/d792332dex1032.htm">Montrose Environmental Group, Inc. Executive Severance Policy. </A></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>21.1**</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"><A HREF="http://www.sec.gov/Archives/edgar/data/1643615/000119312520192567/d792332dex211.htm">Subsidiaries of the Registrant. </A></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>23.1**</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"><A HREF="http://www.sec.gov/Archives/edgar/data/1643615/000119312520192567/d792332dex231.htm">Consent of Deloitte&nbsp;&amp; Touche LLP. </A></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>23.2**</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"><A HREF="http://www.sec.gov/Archives/edgar/data/1643615/000119312520192567/d792332dex232.htm">Consent of DiCicco, Gulman &amp; Company LLP. </A></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>23.3**</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"><A HREF="http://www.sec.gov/Archives/edgar/data/1643615/000119312520192567/d792332dex233.htm">Consent of HoganTaylor LLP. </A></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>23.4**</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"><A HREF="http://www.sec.gov/Archives/edgar/data/1643615/000119312520192567/d792332dex51.htm">Consent of Gibson, Dunn&nbsp;&amp; Crutcher LLP (to be included in Exhibit&nbsp;5.1). </A></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>23.5**</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"><A HREF="http://www.sec.gov/Archives/edgar/data/1643615/000119312520192567/d792332dex235.htm">Consent of Environmental Business International, Inc. </A></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>24.1**</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"><A HREF="http://www.sec.gov/Archives/edgar/data/1643615/000119312520182614/d792332ds1.htm#ii792332_ii8">Powers of Attorney (included on the signature page to the initial filing of this registration statement). </A></TD></TR>
</TABLE>  <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="4%" VALIGN="top" ALIGN="left">**</TD>
<TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman; " ALIGN="left">Previously filed. </P></TD></TR></TABLE> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="4%" VALIGN="top" ALIGN="left">#</TD>
<TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman; " ALIGN="left">Denotes management compensatory plan or arrangement. </P></TD></TR></TABLE>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">II-8 </P>

</DIV></Center>


<p style="margin-top:1em; margin-bottom:0em; page-break-before:always">
<HR SIZE="3" style="COLOR:#999999" WIDTH="100%" ALIGN="CENTER">


<Center><DIV STYLE="width:8.5in" align="left">
 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B><A NAME="ii792332_ii8"></A><A NAME="ii792332_ii8"></A>SIGNATURES </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">Pursuant to the requirements of the Securities Act of 1933, as amended, the registrant has duly caused this registration statement to be
signed on its behalf by the undersigned, thereunto duly authorized, in the city of Irvine, state of California, on July&nbsp;20, 2020. </P>  <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><DIV ALIGN="right">
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="40%" BORDER="0" STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt">


<TR>

<TD WIDTH="8%"></TD>

<TD VALIGN="bottom"></TD>
<TD WIDTH="90%"></TD></TR>


<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" COLSPAN="3"><B>Montrose Environmental Group, Inc.</B></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">By:</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"> <P STYLE="margin-bottom:1pt; margin-top:0pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman">/s/ Vijay Manthripragada</P></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">Name: Vijay Manthripragada</TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">Title: President and Chief Executive Officer</TD></TR>
</TABLE></DIV> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:8%; font-size:10pt; font-family:Times New Roman">Pursuant to the requirements of the Securities Act of 1933, as amended, the following persons have
signed this Registration Statement in the capacities and on the date indicated. </P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="100%" BORDER="0" STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt">


<TR>

<TD WIDTH="45%"></TD>

<TD VALIGN="bottom" WIDTH="1%"></TD>
<TD WIDTH="35%"></TD>

<TD VALIGN="bottom" WIDTH="2%"></TD>
<TD WIDTH="18%"></TD></TR>


<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:0pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman" ALIGN="center">/s/ Vijay Manthripragada</P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">Vijay Manthripragada</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="middle" ALIGN="center"> <P STYLE="margin-top:0pt; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman" ALIGN="center">President, Chief Executive Officer and Director</P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman" ALIGN="center">(Principal Executive Officer)</P></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top" NOWRAP ALIGN="center">July&nbsp;20, 2020</TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:0pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman" ALIGN="center">*</P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">Allan Dicks</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="middle" ALIGN="center"> <P STYLE="margin-top:0pt; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman" ALIGN="center">Chief Financial Officer</P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman" ALIGN="center">(Principal Financial Officer, Principal Accounting Officer)</P></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top" NOWRAP ALIGN="center">July&nbsp;20, 2020</TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:0pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman" ALIGN="center">*</P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">J. Miguel Fernandez de Castro</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top" ALIGN="center"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman" ALIGN="center">Director</P></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top" NOWRAP ALIGN="center">July&nbsp;20, 2020</TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:0pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman" ALIGN="center">*</P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">Peter M. Graham</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top" ALIGN="center"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman" ALIGN="center">Director</P></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top" NOWRAP ALIGN="center">July&nbsp;20, 2020</TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:0pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman" ALIGN="center">*</P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">Brook Hinchman</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top" ALIGN="center"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman" ALIGN="center">Director</P></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top" NOWRAP ALIGN="center">July&nbsp;20, 2020</TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:0pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman" ALIGN="center">*</P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">Richard E. Perlman</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top" ALIGN="center"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman" ALIGN="center">Director</P></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top" NOWRAP ALIGN="center">July&nbsp;20, 2020</TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-bottom:0pt; margin-top:0pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman" ALIGN="center">*</P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">J. Thomas Presby</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top" ALIGN="center"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman" ALIGN="center">Director</P></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top" NOWRAP ALIGN="center">July&nbsp;20, 2020</TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:0pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman" ALIGN="center">*</P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">James K. Price</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top" ALIGN="center"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman" ALIGN="center">Director</P></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top" NOWRAP ALIGN="center">July&nbsp;20, 2020</TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:0pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman" ALIGN="center">*</P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">Robin Newmark</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top" ALIGN="center"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman" ALIGN="center">Director</P></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top" NOWRAP ALIGN="center">July&nbsp;20, 2020</TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-bottom:0pt; margin-top:0pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman" ALIGN="center">*</P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">Peter Jonna</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top" ALIGN="center"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman" ALIGN="center">Director</P></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top" NOWRAP ALIGN="center">July&nbsp;20, 2020</TD></TR>
</TABLE>  <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="40%" BORDER="0" STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt">


<TR>

<TD WIDTH="10%"></TD>

<TD VALIGN="bottom" WIDTH="1%"></TD>
<TD WIDTH="13%"></TD>

<TD VALIGN="bottom" WIDTH="1%"></TD>
<TD WIDTH="75%"></TD></TR>


<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">*By:</TD>
<TD VALIGN="bottom" STYLE=" BORDER-BOTTOM:1px solid #000000">&nbsp;</TD>
<TD VALIGN="top" COLSPAN="3" STYLE="BORDER-BOTTOM:1px solid #000000">/s/Vijay Manthripragada</TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">Name:</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">Vijay Manthripragada</TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">Title:</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">Attorney-in-Fact</TD></TR>
</TABLE>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">II-9 </P>

</DIV></Center>

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</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-1.1
<SEQUENCE>2
<FILENAME>d41822dex11.htm
<DESCRIPTION>EX-1.1
<TEXT>
<HTML><HEAD>
<TITLE>EX-1.1</TITLE>
</HEAD>
 <BODY BGCOLOR="WHITE">


<Center><DIV STYLE="width:8.5in" align="left">
 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="right"><B>Exhibit 1.1 </B></P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<P STYLE="line-height:1.0pt;margin-top:0pt;margin-bottom:0pt;border-bottom:1px solid #000000">&nbsp;</P> <P STYLE="line-height:3.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1px solid #000000">&nbsp;</P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">MONTROSE ENVIRONMENTAL GROUP, INC. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">(a Delaware corporation) </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">[_________] Shares of Common Stock </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><U>UNDERWRITING AGREEMENT </U></P> <P STYLE="margin-top:18pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Dated:
[___________], 2020 </P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P> <P STYLE="line-height:1.0pt;margin-top:0pt;margin-bottom:0pt;border-bottom:1px solid #000000">&nbsp;</P>
<P STYLE="line-height:3.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1px solid #000000">&nbsp;</P>
</DIV></Center>


<p style="margin-top:1em; margin-bottom:0em; page-break-before:always">
<HR SIZE="3" style="COLOR:#999999" WIDTH="100%" ALIGN="CENTER">


<Center><DIV STYLE="width:8.5in" align="left">
 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">MONTROSE ENVIRONMENTAL GROUP, INC. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">(a Delaware corporation) </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">[__________] Shares of Common Stock </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>UNDERWRITING AGREEMENT </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="right">[_____________], 2020 </P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">BofA Securities, Inc. </P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">William Blair&nbsp;&amp; Company, L.L.C. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">as Representatives of
the several Underwriters </P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="4%" VALIGN="top" ALIGN="left">c/o</TD>
<TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman; " ALIGN="left">BofA Securities, Inc. </P></TD></TR></TABLE>
<P STYLE="margin-top:0pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman">One Bryant Park </P> <P STYLE="margin-top:0pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman">New York, New
York 10036 </P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="4%" VALIGN="top" ALIGN="left">c/o</TD>
<TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman; " ALIGN="left">William Blair&nbsp;&amp; Company, L.L.C. </P></TD></TR></TABLE>
<P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">150 N. Riverside Plaza, Suite 4600 </P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Chicago, Illinois 60606 </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Ladies and Gentlemen:
</P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Montrose Environmental Group, Inc., a Delaware corporation (the &#147;Company&#148;), confirms its agreement with BofA Securities, Inc.
(&#147;BofA&#148;), William Blair&nbsp;&amp; Company, L.L.C. (&#147;William Blair&#148;) and each of the other Underwriters named in Schedule A hereto (collectively, the &#147;Underwriters,&#148; which term shall also include any underwriter
substituted as hereinafter provided in Section&nbsp;10 hereof), for whom BofA and William Blair are acting as representatives (in such capacity, the &#147;Representatives&#148;), with respect to (i)&nbsp;the sale by the Company and the purchase by
the Underwriters, acting severally and not jointly, of the respective numbers of shares of Common Stock, par value $0.000004 per share, of the Company (&#147;Common Stock&#148;) set forth in Schedule&nbsp;A hereto and (ii)&nbsp;the grant by the
Company to the Underwriters, acting severally and not jointly, of the option described in Section&nbsp;2(b) hereof to purchase all or any part of [___________] additional shares of Common Stock. The aforesaid [___________] shares of Common Stock
(the &#147;Initial Securities&#148;) to be purchased by the Underwriters and all or any part of the [___________] shares of Common Stock subject to the option described in Section&nbsp;2(b) hereof (the &#147;Option Securities&#148;) are herein
called, collectively, the &#147;Securities.&#148; </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The Company understands that the Underwriters propose to make a public offering of the
Securities as soon as the Representatives deem advisable after this Agreement has been executed and delivered. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The Company and the
Underwriters agree that up to [______] shares of the Initial Securities to be purchased by the Underwriters (the &#147;Reserved Securities&#148;) shall be reserved for sale by Fidelity Capital Markets, a division of National Financial Services LLC
(&#147;Fidelity&#148;) to certain persons designated by the Company (the &#147;Invitees&#148; and the offering of the Reserved Securities to the Invitees, the &#147;Program&#148;), as part of the distribution of the Securities by the Underwriters,
subject to the terms of this Agreement, the </P>
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applicable rules, regulations and interpretations of the Financial Industry Regulatory Authority, Inc. (&#147;FINRA&#148;) and all other applicable laws, rules and regulations. The Company solely
determined, without any direct or indirect participation by the Underwriters or Fidelity, the Invitees who will purchase Reserved Securities (including the amount to be purchased by such persons) sold by Fidelity. To the extent that such Reserved
Securities are not orally confirmed for purchase by Invitees by 11:59 P.M. (New York City time) on the date of this Agreement, such Reserved Securities may be offered to the public as part of the public offering contemplated hereby. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The Company has filed with the Securities and Exchange Commission (the &#147;Commission&#148;) a registration statement on <FONT
STYLE="white-space:nowrap">Form&nbsp;S-1</FONT> (No. <FONT STYLE="white-space:nowrap">333-239542),</FONT> including the related preliminary prospectus or prospectuses, covering the registration of the sale of the Securities under the Securities Act
of 1933, as amended (the &#147;1933 Act&#148;). Promptly after execution and delivery of this Agreement, the Company will prepare and file a prospectus in accordance with the provisions of Rule 430A (&#147;Rule 430A&#148;) of the rules and
regulations of the Commission under the 1933 Act (the &#147;1933 Act Regulations&#148;) and Rule 424(b) (&#147;Rule 424(b)&#148;) of the 1933 Act Regulations. The information included in such prospectus that was omitted from such registration
statement at the time it became effective but that is deemed to be part of such registration statement at the time it became effective pursuant to Rule 430A(b) is herein called the &#147;Rule 430A Information.&#148; Such registration statement,
including the amendments thereto, the exhibits thereto and any schedules thereto, at the time it became effective, and including the Rule 430A Information, is herein called the &#147;Registration Statement.&#148; Any registration statement filed
pursuant to Rule 462(b) of the 1933 Act Regulations is herein called the &#147;Rule 462(b) Registration Statement&#148; and, after such filing, if any, the term &#147;Registration Statement&#148; shall include the Rule 462(b) Registration Statement.
Each prospectus used prior to the effectiveness of the Registration Statement, and each prospectus that omitted the Rule 430A Information that was used after such effectiveness and prior to the execution and delivery of this Agreement, is herein
called a &#147;preliminary prospectus.&#148; The final prospectus, in the form first furnished to the Underwriters for use in connection with the offering of the Securities and filed with the Commission pursuant to Rule 424(b), is herein called the
&#147;Prospectus.&#148; For purposes of this Agreement, all references to the Registration Statement, any preliminary prospectus, the Prospectus or any amendment or supplement to any of the foregoing shall be deemed to include the copy filed with
the Commission pursuant to its Electronic Data Gathering, Analysis and Retrieval system or any successor system (&#147;EDGAR&#148;). <B></B> </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">As used in this Agreement: </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;Applicable Time&#148; means [__:00 P./A.M.], New York City time, on [&#149;], 2020 or such other time as agreed by the
Company and the Representatives. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;General Disclosure Package&#148; means any Issuer General Use Free Writing
Prospectuses issued at or prior to the Applicable Time, the most recent preliminary prospectus that is distributed to investors prior to the Applicable Time and the information included on Schedule <FONT STYLE="white-space:nowrap">B-1</FONT> hereto,
all considered together. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;Issuer Free Writing Prospectus&#148; means any &#147;issuer free writing prospectus,&#148;
as defined in Rule 433 of the 1933 Act Regulations (&#147;Rule 433&#148;), including without limitation any &#147;free writing prospectus&#148; (as defined in Rule 405 of the 1933 Act Regulations (&#147;Rule 405&#148;)) relating to the Securities
that is (i)&nbsp;required to be filed with the Commission by the Company, (ii)&nbsp;a &#147;road show that is a written communication&#148; within the meaning of Rule 433(d)(8)(i), whether or not required to be filed with the Commission, or
(iii)&nbsp;exempt from filing with the Commission pursuant to Rule 433(d)(5)(i) because it contains a description of the Securities or of the offering that does not reflect the final terms, in each case, in the form filed or required to be filed
with the Commission or, if not required to be filed, in the form retained in the Company&#146;s records pursuant to Rule 433(g). </P>
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;Issuer General Use Free Writing Prospectus&#148; means any Issuer Free
Writing Prospectus that is intended for general distribution to prospective investors (other than a &#147;<I>bona fide</I> electronic road show,&#148; as defined in Rule 433 (the &#147;Bona Fide Electronic Road Show&#148;)), as evidenced by its
being specified in Schedule <FONT STYLE="white-space:nowrap">B-2</FONT> hereto. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;Issuer Limited Use Free Writing
Prospectus&#148; means any Issuer Free Writing Prospectus that is not an Issuer General Use Free Writing Prospectus. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman"><FONT
STYLE="white-space:nowrap"><FONT STYLE="white-space:nowrap">&#147;Testing-the-Waters</FONT></FONT> Communication&#148; means any oral or written communication with potential investors in connection with the offer and sale of the Securities
undertaken in reliance on Section&nbsp;5(d) of the 1933 Act. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">&#147;Written <FONT STYLE="white-space:nowrap"><FONT
STYLE="white-space:nowrap">Testing-the-Waters</FONT></FONT> Communication&#148; means any <FONT STYLE="white-space:nowrap"><FONT STYLE="white-space:nowrap">Testing-the-Waters</FONT></FONT> Communication that is a written communication within the
meaning of Rule 405 under the 1933 Act. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">SECTION 1. <U>Representations and Warranties</U>. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(a) <I>Representations and Warranties by the Company</I>. The Company represents and warrants to each Underwriter as of the date hereof, the
Applicable Time, the Closing Time (as defined below) and any Date of Delivery (as defined below), and agrees with each Underwriter, as follows: </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(i) <U>Registration Statement</U><U> and Prospectuses</U>. Each of the Registration Statement and any amendment thereto has
been declared effective by the Commission under the 1933 Act. No stop order suspending the effectiveness of the Registration Statement or any post-effective amendment thereto has been issued by the Commission under the 1933 Act, no order preventing
or suspending the use of any preliminary prospectus or the Prospectus has been issued by the Commission and no proceedings for any of those purposes have been instituted or are pending or, to the Company&#146;s knowledge, threatened by the
Commission. The Company has complied with each request (if any) from the Commission for additional information. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">Each of
the Registration Statement and any post-effective amendment thereto, at the time of its effectiveness, the Applicable Time, the Closing Time and any Date of Delivery complied and will comply in all material respects with the requirements of the 1933
Act and the 1933 Act Regulations. Each preliminary prospectus, the Prospectus and any amendment or supplement thereto, at the time each was filed with the Commission, and, in each case, at the Applicable Time, the Closing Time and any Date of
Delivery complied and will comply in all material respects with the requirements of the 1933 Act and the 1933 Act Regulations. Each preliminary prospectus delivered to the Underwriters for use in connection with this offering was, and the Prospectus
will be, identical to the electronically transmitted copies thereof filed or to be filed with the Commission pursuant to EDGAR, except to the extent permitted by Regulation <FONT STYLE="white-space:nowrap">S-T.</FONT> </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(ii) <U>Accurate Disclosure</U>. Neither the Registration Statement nor any amendment thereto, when considered together with
the Registration Statement, at its effective time, on the date hereof, at the Closing Time or at any Date of Delivery, contained, contains or will contain an untrue statement of a material fact or omitted, omits or will omit to state a material fact
required to be stated therein or necessary to make the statements therein not misleading. At the Applicable Time and any Date of Delivery, none of (A)&nbsp;the General Disclosure Package, (B)&nbsp;any individual
</P>
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Issuer Limited Use Free Writing Prospectus, when considered together with the General Disclosure Package and (C)&nbsp;any individual Written <FONT STYLE="white-space:nowrap"><FONT
STYLE="white-space:nowrap">Testing-the-Waters</FONT></FONT> Communication, as supplemented by and when considered together with the General Disclosure Package, included, includes or will include an untrue statement of a material fact or omitted,
omits or will omit to state a material fact necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading. Neither the Prospectus nor any amendment or supplement thereto, when
considered together with the Registration Statement, as of its issue date, at the time of any filing with the Commission pursuant to Rule 424(b), at the Closing Time or at any Date of Delivery, included, includes or will include an untrue statement
of a material fact or omitted, omits or will omit to state a material fact necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">The representations and warranties in this subsection shall not apply to statements in or omissions from the Registration
Statement (or any amendment thereto), the General Disclosure Package, any Issuer Limited Use Free Writing Prospectus, any Written <FONT STYLE="white-space:nowrap"><FONT STYLE="white-space:nowrap">Testing-the-Waters</FONT></FONT> Communication or the
Prospectus (or any amendment or supplement thereto) made in reliance upon and in conformity with written information furnished to the Company by or on behalf of any Underwriter through the Representatives expressly for use therein. For purposes of
this Agreement, the only information so furnished shall be [the information in the first paragraph under the heading &#147;Underwriting&#150;Commissions and Discounts,&#148; the information in the second, third and fourth paragraphs under the
heading &#147;Underwriting&#150;Price Stabilization, Short Positions and Penalty Bids&#148; and the information under the heading &#147;Underwriting&#150;Electronic Distribution&#148;] (collectively, the &#147;Underwriter Information&#148;). </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(iii) <U>Issuer Free Writing Prospectuses</U>. No Issuer Free Writing Prospectus conflicts or will conflict with the
information contained in the Registration Statement or the Prospectus, and any preliminary or other prospectus deemed to be a part thereof that has not been superseded or modified. The foregoing sentence does not apply to statements in or omissions
from any Issuer Free Writing Prospectus made in reliance upon and in conformity with the Underwriter Information. The Company has made available a Bona Fide Electronic Road Show in compliance with Rule 433(d)(8)(ii) such that no filing of any
&#147;road show&#148; (as defined in Rule 433(h)) is required in connection with the offering of the Securities. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(iv) <U><FONT
STYLE="white-space:nowrap"><FONT STYLE="white-space:nowrap">Testing-the-Waters</FONT></FONT> Materials</U>. The Company (A)&nbsp;has not engaged in any
<FONT STYLE="white-space:nowrap"><FONT STYLE="white-space:nowrap">Testing-the-Waters</FONT></FONT> Communication other than <FONT STYLE="white-space:nowrap"><FONT STYLE="white-space:nowrap">Testing-the-Waters</FONT></FONT> Communications with the
consent of the Representatives with entities that are qualified institutional buyers within the meaning of Rule 144A under the 1933 Act or institutions that are accredited investors within the meaning of Rule 501 under the 1933 Act and (B)&nbsp;has
not authorized anyone other than the Representatives to engage in <FONT STYLE="white-space:nowrap"><FONT STYLE="white-space:nowrap">Testing-the-Waters</FONT></FONT> Communications. The Company reconfirms that the Representatives have been authorized
to act on its behalf in undertaking <FONT STYLE="white-space:nowrap"><FONT STYLE="white-space:nowrap">Testing-the-Waters</FONT></FONT> Communications with respect to those
<FONT STYLE="white-space:nowrap"><FONT STYLE="white-space:nowrap">Testing-the-Waters</FONT></FONT> Communications listed on Schedule <FONT STYLE="white-space:nowrap">B-3</FONT> hereto. The Company has not distributed any Written <FONT
STYLE="white-space:nowrap"><FONT STYLE="white-space:nowrap">Testing-the-Waters</FONT></FONT> Communications other than those listed on Schedule <FONT STYLE="white-space:nowrap">B-3</FONT> hereto. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(v) <U>Company Not Ineligible Issuer</U>. At the time of filing the Registration Statement and any post-effective amendment
thereto, at the earliest time thereafter that the Company or another offering participant made a <I>bona fide</I> offer (within the meaning of Rule 164(h)(2) of the 1933 Act Regulations) of the Securities and at the date hereof, the Company was not
and is not an &#147;ineligible issuer,&#148; as defined in Rule 405, without taking account of any determination by the Commission pursuant to Rule 405 that it is not necessary that the Company be considered an ineligible issuer. </P>
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(vi) <U>Emerging Growth Company Status.</U> From the time of the initial
confidential submission of the Registration Statement to the Commission through the date hereof, the Company has been and is an &#147;emerging growth company,&#148; as defined in Section&nbsp;2(a) of the 1933 Act (an &#147;Emerging Growth
Company&#148;). </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(vii) <U>Independent Accountants</U>. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(a) Deloitte&nbsp;&amp; Touche LLP, who have certified certain financial statements of the Company and its subsidiaries
included in the Registration Statement, the General Disclosure Package and the Prospectus, is an independent registered public accounting firm with respect to the Company as required by the 1933 Act, the 1933 Act Regulations and the Public Company
Accounting Oversight Board. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(b) DiCicco, Gulman&nbsp;&amp; Company LLP, who have certified certain financial statements of
Emerging Compounds Treatment Technologies, Inc. included in the Registration Statement, the General Disclosure Package and the Prospectus, is an independent accounting firm with respect to the company for which such firm expressed its opinion on the
applicable financial statements thereof under the Independence Rules of the American Institute of Certified Public Accountants (&#147;AICPA&#148;) Code of Professional Conduct and its interpretations and rulings. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(c) HoganTaylor LLP, who have certified certain financial statements of CTEH Holdings, LLC and its subsidiaries included in the
Registration Statement, the General Disclosure Package and the Prospectus, is an independent accounting firm with respect to the company for which such firm expressed its opinion on the applicable financial statements thereof under the Independence
Rules of the AICPA Code of Professional Conduct and its interpretations and rulings. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(viii) <U>Financial Statements; <FONT
STYLE="white-space:nowrap">Non-GAAP</FONT> Financial Measures</U>. The audited financial statements included in the Registration Statement, the General Disclosure Package and the Prospectus, together with the related notes, present fairly, in all
material respects, the financial position of the applicable entity to which they relate and its consolidated subsidiaries at the dates indicated and the statement of operations, stockholders&#146; equity and cash flows of the applicable entity to
which they relate and its consolidated subsidiaries for the periods specified; said financial statements have been prepared in conformity with U.S. generally accepted accounting principles (&#147;GAAP&#148;) applied on a consistent basis throughout
the periods involved. The selected financial data and the summary financial information included in the Registration Statement, the General Disclosure Package and the Prospectus present fairly, in all material respects, the information shown therein
and have been compiled on a basis consistent, in all material respects, with that of the audited financial statements included therein. The pro forma financial information and the related notes thereto included in the Registration Statement, the
General Disclosure Package and the Prospectus present fairly, in all material respects, the information shown therein, have been prepared in accordance with the Commission&#146;s rules and guidance with respect to pro forma financial information and
have been compiled on the bases described therein, and the assumptions used in the preparation thereof are reasonable and the adjustments used therein are appropriate to give effect to the transactions and circumstances referred to therein. Except
as included therein, no historical or pro forma financial statements or supporting schedules are required to be included in the Registration Statement, the General Disclosure Package or the Prospectus under the 1933 Act or the 1933 Act Regulations,
including Rule <FONT STYLE="white-space:nowrap">3-05</FONT> </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">5 </P>

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and Article 11 of Regulation <FONT STYLE="white-space:nowrap">S-X.</FONT> All disclosures contained in the Registration Statement, the General Disclosure Package or the Prospectus regarding <FONT
STYLE="white-space:nowrap">&#147;non-GAAP</FONT> financial measures&#148; (as such term is defined by the rules and regulations of the Commission) comply, in all material respects, with Regulation G of the Securities Exchange Act of 1934, as amended
(the &#147;1934 Act&#148;) and Item 10 of Regulation <FONT STYLE="white-space:nowrap">S-K</FONT> of the 1933 Act, to the extent applicable. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(ix) [Reserved.] </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(x) <U>No Material Adverse Change in Business</U>. Except as otherwise stated therein, since the respective dates as of which
information is given in the Registration Statement, the General Disclosure Package or the Prospectus, (A)&nbsp;there has been no material adverse change in the condition, financial or otherwise, or in the earnings, business affairs or business
prospects of the Company and its subsidiaries considered as one enterprise, whether or not arising in the ordinary course of business (a &#147;Material Adverse Effect&#148;), (B)&nbsp;there have been no transactions entered into by the Company or
any of its subsidiaries, other than those in the ordinary course of business, which are material with respect to the Company and its subsidiaries considered as one enterprise, and (C)&nbsp;there has been no dividend or distribution of any kind
declared, paid or made by the Company on any class of its capital stock. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(xi) <U>Good Standing of the Company</U>. The
Company has been duly incorporated and is validly existing as a corporation in good standing under the laws of the State of Delaware and has corporate power and authority to own, lease and operate its properties and to conduct its business as
described in the Registration Statement, the General Disclosure Package and the Prospectus and to enter into and perform its obligations under this Agreement; and the Company is duly qualified as a foreign corporation to transact business and is in
good standing in each other jurisdiction in which such qualification is required (and where such concept exists), whether by reason of the ownership or leasing of property or the conduct of business, except where the failure to so qualify or to be
in good standing would not reasonably be expected to result in a Material Adverse Effect. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(xii) <U>Good Standing of
Subsidiaries</U>. Each &#147;significant subsidiary&#148; of the Company (as such term is defined in Rule <FONT STYLE="white-space:nowrap">1-02</FONT> of Regulation <FONT STYLE="white-space:nowrap">S-X)</FONT> (each, a &#147;Subsidiary&#148; and,
collectively, the &#147;Subsidiaries&#148;) has been duly organized and is validly existing in good standing under the laws of the jurisdiction of its incorporation or organization (where such concept exists), has corporate or similar power and
authority to own, lease and operate its properties and to conduct its business as described in the Registration Statement, the General Disclosure Package and the Prospectus and is duly qualified to transact business and is in good standing in each
jurisdiction in which such qualification is required (and where such concept exists), whether by reason of the ownership or leasing of property or the conduct of business, except where the failure to so qualify or to be in good standing would not
reasonably be expected to result in a Material Adverse Effect. Except as otherwise disclosed in the Registration Statement, the General Disclosure Package and the Prospectus, all of the issued and outstanding capital stock of each Subsidiary has
been duly authorized and validly issued, is fully paid and <FONT STYLE="white-space:nowrap">non-assessable</FONT> (or such equivalent concept to the extent it exists under the laws of such jurisdiction) and is owned by the Company, directly or
through subsidiaries, free and clear of any security interest, mortgage, pledge, lien, encumbrance or claim. None of the outstanding equity interests of any Subsidiary were issued in violation of the preemptive or similar rights of any
securityholder of such Subsidiary. </P>
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(xiii) <U>Capitalization</U>. The authorized, issued and outstanding shares
of capital stock of the Company are as set forth in the Registration Statement, the General Disclosure Package and the Prospectus in the column entitled &#147;Actual&#148; under the caption &#147;Capitalization&#148; (except for subsequent
issuances, if any, pursuant to this Agreement, pursuant to reservations, agreements or employee benefit or equity incentive plans referred to in the Registration Statement, the General Disclosure Package and the Prospectus, pursuant to the exercise
of convertible securities, warrants or options referred to in the Registration Statement, the General Disclosure Package and the Prospectus, pursuant to the payment in Common Stock of a portion of the redemption price of the Company&#146;s Series <FONT
STYLE="white-space:nowrap">A-1</FONT> Convertible Preferred Stock as described in the Registration Statement, the General Disclosure Package and the Prospectus, as consideration paid in connection with the acquisition of The Center for Toxicology
and Environmental Health, LLC (&#147;CTEH&#148;) as described in the Registration Statement, the General Disclosure Package and the Prospectus, or the issuance of the Company&#146;s Series <FONT STYLE="white-space:nowrap">A-2</FONT> Perpetual
Convertible Preferred Stock and the related warrant to purchase shares of Common Stock issued in connection therewith, each as described in the Registration Statement, the General Disclosure Package and the Prospectus). The outstanding shares of
capital stock of the Company have been duly authorized and validly issued and are fully paid and <FONT STYLE="white-space:nowrap">non-assessable.</FONT> None of the outstanding shares of capital stock of the Company were issued in violation of the
preemptive or other similar rights of any securityholder of the Company. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(xiv) <U>Authorization of Agreement</U>. This
Agreement has been duly authorized, executed and delivered by the Company. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(xv) <U>Authorization and Description of
Securities</U>. The Securities to be purchased by the Underwriters from the Company have been duly authorized for issuance and sale to the Underwriters pursuant to this Agreement and, when issued and delivered by the Company pursuant to this
Agreement against payment of the consideration set forth herein, will be validly issued and fully paid and <FONT STYLE="white-space:nowrap">non-assessable;</FONT> and the issuance of the Securities is not subject to the preemptive or other similar
rights of any securityholder of the Company. The Common Stock conforms in all material respects to all statements relating thereto contained in the Registration Statement, the General Disclosure Package and the Prospectus and such description
conforms in all material respects to the rights set forth in the instruments defining the same. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(xvi) <U>Registration
Rights</U>. There are no persons with registration rights or other similar rights to have any securities registered for sale pursuant to the Registration Statement or otherwise registered for sale or sold by the Company under the 1933 Act pursuant
to this Agreement, other than those rights that have been disclosed in the Registration Statement, the General Disclosure Package and the Prospectus and have been waived. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(xvii) <U>Absence of Violations, Defaults and Conflicts</U>. Neither the Company nor any of its Subsidiaries is in violation of
its charter, bylaws or similar organizational document. Neither the Company nor any of its subsidiaries is (A)&nbsp;in default in the performance or observance of any obligation, agreement, covenant or condition contained in any contract, indenture,
mortgage, deed of trust, loan or credit agreement, note, lease or other agreement or instrument to which the Company or any of its subsidiaries is a party or by which it or any of them may be bound or to which any of the properties or assets of the
Company or any subsidiary is subject (collectively, &#147;Agreements and Instruments&#148;), except for such defaults that would not reasonably be expected to, singly or in the aggregate, result in a Material Adverse Effect, or (B)&nbsp;in violation
of any law, statute, rule, regulation, judgment, order, writ or decree of any arbitrator, court, governmental body, regulatory body, administrative agency or other authority, body or agency having jurisdiction over the Company or any of its
subsidiaries or any of their respective properties, assets or operations (each, a &#147;Governmental Entity&#148;), except for such violations that would not reasonably be expected to, singly or in the aggregate, result in a Material Adverse Effect.
The execution, delivery and performance of this Agreement and the consummation of the transactions </P>
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contemplated herein and in the Registration Statement, the General Disclosure Package and the Prospectus (including the issuance and sale of the Securities and the use of the proceeds from the
sale of the Securities as described therein under the caption &#147;Use of Proceeds&#148;) and compliance by the Company with its obligations hereunder have been duly authorized by all necessary corporate action and do not and will not, whether with
or without the giving of notice or passage of time or both, constitute a breach of, or default or Repayment Event (as defined below) under, or result in the creation or imposition of any lien, charge or encumbrance upon any properties or assets of
the Company or any subsidiary pursuant to, the Agreements and Instruments (except for such conflicts, breaches, defaults or Repayment Events or liens, charges or encumbrances that would not, singly or in the aggregate, reasonably be expected to
result in a Material Adverse Effect), nor will such action result in any violation of (x)&nbsp;the provisions of the charter, bylaws or similar organizational document of the Company or any of its subsidiaries or (y)&nbsp;any law, statute, rule,
regulation, judgment, order, writ or decree of any Governmental Entity, except with respect to clause (y), such violations as would not reasonably be expected to, singly or in the aggregate, result in a Material Adverse Effect. As used herein, a
&#147;Repayment Event&#148; means any event or condition which gives the holder of any note, debenture or other evidence of indebtedness (or any person acting on such holder&#146;s behalf) the right to require the repurchase, redemption or repayment
of all or a portion of such indebtedness by the Company or any of its Subsidiaries. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(xviii) <U>Absence of Labor
Dispute</U>. No labor dispute with the employees of the Company or any of its subsidiaries exists or, to the knowledge of the Company, is threatened, and to the Company&#146;s knowledge, there are no existing or threatened labor disturbances by the
employees of any of its or any subsidiary&#146;s principal suppliers, manufacturers, customers or contractors, which, in each case, would reasonably be expected to result in a Material Adverse Effect. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(xix) <U>Absence of Proceedings</U>. Except as disclosed in the Registration Statement, the General Disclosure Package and the
Prospectus, there is no action, suit, proceeding, inquiry or investigation before or brought by any Governmental Entity now pending or, to the knowledge of the Company, threatened, against the Company or any of its subsidiaries, which, if determined
adversely to the Company or its subsidiaries would reasonably be expected to result in a Material Adverse Effect, or which would reasonably be expected to materially and adversely affect the consummation of the transactions contemplated in this
Agreement or the performance by the Company of its obligations hereunder. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(xx) [Reserved.] </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(xxi) <U>Accuracy of Exhibits</U>. There are no contracts or documents which are required under the 1933 Act to be described in
the Registration Statement, the General Disclosure Package or the Prospectus or to be filed as exhibits to the Registration Statement which have not been so described or filed as required. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(xxii) <U>Absence of Further Requirements</U>. No filing with, or authorization, approval, consent, license, order,
registration, qualification or decree of, any Governmental Entity is necessary or required for the performance by the Company of its obligations hereunder, in connection with the offering, issuance or sale of the Securities hereunder or the
consummation of the transactions contemplated by this Agreement, except (A)&nbsp;such as have been obtained or as may be required under the 1933 Act, the 1933 Act Regulations, the rules of the New York Stock Exchange, state securities laws or the
rules of FINRA and (B)&nbsp;such as have been obtained under the laws and regulations of jurisdictions outside the United States in which the Reserved Securities were offered. </P>
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(xxiii) <U>Possession of Licenses and Permits</U>. The Company and its
subsidiaries possess such permits, licenses, approvals, consents and other authorizations (collectively, &#147;Governmental Licenses&#148;) issued by the appropriate Governmental Entities necessary to conduct the business now operated by them,
including, without limitation, all such Governmental Licenses required by the United States Environmental Protection Agency or any component thereof and/or by any other U.S., state, local or foreign government or environmental regulatory agency,
except where the failure so to possess would not, singly or in the aggregate, reasonably be expected to result in a Material Adverse Effect. The Company has fulfilled and performed all of its obligations with respect to the Governmental Licenses and
no event has occurred which allows, or after notice or lapse of time would allow, revocation or termination thereof or results in any other impairment of the rights of the Company as a holder of any permit, except where the failure to so fulfill or
perform, or the occurrence of such event, would not, singly or in the aggregate, reasonably be expected to result in a Material Adverse Effect. The Company and its subsidiaries are in compliance with the terms and conditions of all Governmental
Licenses, except where the failure so to comply would not, singly or in the aggregate, reasonably be expected to result in a Material Adverse Effect. All of the Governmental Licenses are valid and in full force and effect, except where the
invalidity of such Governmental Licenses or the failure of such Governmental Licenses to be in full force and effect would not, singly or in the aggregate, reasonably be expected to result in a Material Adverse Effect. Neither the Company nor any of
its subsidiaries has received any notice of proceedings relating to the revocation or modification of any Governmental Licenses which, singly or in the aggregate, if the subject of an unfavorable decision, ruling or finding, would reasonably be
expected to result in a Material Adverse Effect. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(xxiv) <U>Title to Property</U>. The Company and its subsidiaries have
good and marketable title in fee simple to all real property and have good title to all personal properties owned by them, in each case, free and clear of all mortgages, pledges, liens, security interests, claims, restrictions or encumbrances of any
kind except such as (A)&nbsp;are described in the Registration Statement, the General Disclosure Package and the Prospectus or (B)&nbsp;would not, singly or in the aggregate, reasonably be expected to result in a Material Adverse Effect; and all of
the leases and subleases of the Company and its subsidiaries, considered as one enterprise, and under which the Company or any of its subsidiaries holds properties described in the Registration Statement, the General Disclosure Package or the
Prospectus, are in full force and effect, and neither the Company nor any such subsidiary has any notice of any claim that has been asserted by anyone adverse to the rights of the Company or any subsidiary under any of the leases or subleases
mentioned above, except to the extent that any such failure to be in full force and effect or such claim would not, singly or in the aggregate, result in a Material Adverse Effect. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(xxv) <U>Possession of Intellectual Property</U>. Except as would not, singly or in the aggregate, reasonably be expected to
result in a Material Adverse Effect, (A)&nbsp;the Company and its subsidiaries own or possess, or can acquire on reasonable terms, adequate patents, patent rights, licenses, inventions, copyrights, <FONT STYLE="white-space:nowrap">know-how</FONT>
(including trade secrets and other unpatented and/or unpatentable proprietary or confidential information, systems or procedures), trademarks, service marks, trade names or other intellectual property (collectively, &#147;Intellectual
Property&#148;) necessary to carry on the business now operated by them, and (B)&nbsp;neither the Company nor any of its subsidiaries has received any notice or otherwise has knowledge of any infringement of or conflict with asserted rights of
others with respect to any Intellectual Property or of any facts or circumstances which would render any Intellectual Property invalid or inadequate to protect the interest of the Company or any of its subsidiaries therein. </P>
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(xxvi) <U>Environmental Laws</U>. Except as described in the Registration
Statement, the General Disclosure Package and the Prospectus or would not, singly or in the aggregate, reasonably be expected to result in a Material Adverse Effect, (A)&nbsp;neither the Company nor any of its subsidiaries is or, to the
Company&#146;s knowledge has been, in violation of any applicable federal, state, local or foreign statute, law, rule, regulation, ordinance, code or rule of common law or any binding judicial or administrative interpretation thereof, including any
binding judicial or administrative order, consent, decree or judgment, relating to pollution or protection of human health, the environment (including, without limitation, ambient air, surface water, groundwater, land surface or subsurface strata)
or wildlife, including, without limitation, laws and regulations relating to the release or threatened release of chemicals, pollutants, contaminants, hazardous wastes, toxic substances, hazardous substances, petroleum or petroleum products or
asbestos-containing materials (collectively, &#147;Hazardous Materials&#148;) or to the manufacture, processing, distribution, use, treatment, storage, disposal, transport or handling of Hazardous Materials (collectively, &#147;Environmental
Laws&#148;), (B) the Company and its subsidiaries have obtained all permits, authorizations and approvals required under any applicable Environmental Laws and are each in compliance with their requirements, (C)&nbsp;there are no pending or, to the
Company&#146;s knowledge, threatened administrative, regulatory or judicial actions, suits, demands, demand letters, claims, liens, notices of noncompliance or violation, investigations or proceedings relating to any Environmental Law against the
Company or any of its subsidiaries and (D)&nbsp;to the Company&#146;s knowledge, there are no events or circumstances caused by the Company or its subsidiaries that would reasonably be expected to form the basis of an order for <FONT
STYLE="white-space:nowrap">clean-up</FONT> or remediation, or an action, suit or proceeding by any private party or Governmental Entity, against or affecting the Company or any of its subsidiaries relating to Hazardous Materials or any Environmental
Laws. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(xxvii) <U>Accounting Controls</U>. The Company and each of its subsidiaries maintain effective internal control
over financial reporting (as defined under Rule <FONT STYLE="white-space:nowrap">13-a15</FONT> and <FONT STYLE="white-space:nowrap">15d-15</FONT> under the rules and regulations of the Commission under the 1934 Act (the &#147;1934 Act
Regulations&#148;)) and a system of internal accounting controls sufficient to provide reasonable assurances that (A)&nbsp;transactions are executed in accordance with management&#146;s general or specific authorization; (B)&nbsp;transactions are
recorded as necessary to permit preparation of financial statements in conformity with GAAP and to maintain accountability for assets; (C)&nbsp;access to assets is permitted only in accordance with management&#146;s general or specific
authorization; and (D)&nbsp;the recorded accountability for assets is compared with the existing assets at reasonable intervals and appropriate action is taken with respect to any differences. Except as described in the Registration Statement, the
General Disclosure Package and the Prospectus, since the end of the Company&#146;s most recent audited fiscal year, there has been (1)&nbsp;no material weakness (as defined in Rule <FONT STYLE="white-space:nowrap">1-02</FONT> of Regulation <FONT
STYLE="white-space:nowrap">S-X)</FONT> in the Company&#146;s internal control over financial reporting (whether or not remediated) and (2)&nbsp;no change in the Company&#146;s internal control over financial reporting that has materially and
adversely affected, or is reasonably likely to materially and adversely affect, the Company&#146;s internal control over financial reporting. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(xxviii) <U>Compliance with the Sarbanes-Oxley Act.</U> The Company has taken all necessary actions to ensure that, upon the
effectiveness of the Registration Statement, it will be in compliance in all material respects with all provisions of the Sarbanes-Oxley Act of 2002 and all rules and regulations promulgated thereunder or implementing the provisions thereof (the
&#147;Sarbanes-Oxley Act&#148;) that are then in effect and with which the Company is required to comply as of the effectiveness of the Registration Statement, and is taking or will take reasonable steps to be in compliance with other provisions of
the Sarbanes-Oxley Act not currently in effect, upon the effectiveness of such provisions, or which will become applicable to the Company at all times after the effectiveness of the Registration Statement. </P>
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(xxix) <U>Payment of Taxes</U>. All United States federal income tax returns
of the Company and its subsidiaries required by law to be filed by them have been filed or a timely extension has been requested thereof, in each case as of the date hereof, and all taxes shown by such returns or otherwise assessed, which are due
and payable, have been paid, except assessments against which appeals have been or will be promptly taken and as to which adequate reserves have been provided in accordance with GAAP. No assessment has been made against the Company with respect to
the United States federal income tax returns of the Company through the fiscal year ended December&nbsp;31, 2018 that has not been settled. The Company and its subsidiaries have filed all other tax returns that are required to have been filed by
them pursuant to applicable foreign, state, local or other law except insofar as the failure to file such returns would not reasonably be expected to result in a Material Adverse Effect, and has paid all taxes due pursuant to such returns or
pursuant to any assessment received by the Company and its subsidiaries, except for such taxes or assessments, if any, as are being contested in good faith and as to which adequate reserves have been established by the Company in accordance with
GAAP. The charges, accruals and reserves on the books of the Company in respect of any income and corporation tax liability for any taxable years not finally determined are adequate to meet any assessments or
<FONT STYLE="white-space:nowrap">re-assessments</FONT> for additional income tax for any taxable years not yet closed by the applicable statute of limitations, except to the extent of any inadequacy that would not reasonably be expected to result in
a Material Adverse Effect. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(xxx) <U>Insurance</U>. The Company and its subsidiaries carry or are entitled to the benefits
of insurance, with financially sound and reputable insurers, in such amounts and covering such risks as the Company reasonably believes is adequate to conduct its business and the business of the subsidiaries as described in the Registration
Statement, the General Disclosure Package and the Prospectus. The Company has no reason to believe that it or any of its subsidiaries will not be able (A)&nbsp;to renew its existing insurance coverage as and when such policies expire or (B)&nbsp;to
obtain comparable coverage from similar institutions as may be necessary or appropriate to conduct its business as now conducted and at a cost that would not reasonably be expected to result in a Material Adverse Effect. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(xxxi) <U>Investment Company Act</U>. The Company is not required, and upon the issuance and sale of the Securities as herein
contemplated and the application of the net proceeds therefrom as described in the Registration Statement, the General Disclosure Package and the Prospectus will not be required, to register as an &#147;investment company&#148; under the Investment
Company Act of 1940, as amended (the &#147;1940 Act&#148;). </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(xxxii) <U>Absence of Manipulation</U>. Neither the Company
nor, to the knowledge of the Company, any affiliate of the Company has taken, nor will the Company take or cause any affiliate to take, directly or indirectly, any action which is designed, or would reasonably be expected, to cause or result in, or
which constitutes, the stabilization or manipulation of the price of any security of the Company to facilitate the sale or resale of the Securities or to result in a violation of Regulation M under the 1934 Act. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(xxxiii) <U>Foreign Corrupt Practices Act</U>. None of the Company, any of its subsidiaries or, to the knowledge of the
Company, any director, officer, agent, employee, affiliate or other person acting on behalf of the Company or any of its subsidiaries is aware of or has taken any action, directly or indirectly, that would result in a violation by such persons of
the Foreign Corrupt Practices Act of 1977, as amended, and the rules and regulations thereunder (the &#147;FCPA&#148;), including, without limitation, making use of the mails or any means or instrumentality of interstate commerce corruptly in
furtherance of an offer, payment, promise to pay or authorization of the payment of any money, or other property, gift, promise to give, or </P>
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authorization of the giving of anything of value to any &#147;foreign official&#148; (as such term is defined in the FCPA) or any foreign political party or official thereof or any candidate for
foreign political office, in contravention of the FCPA and the Company and, to the knowledge of the Company, its affiliates have conducted their businesses in compliance with the FCPA and have instituted and maintain policies and procedures designed
to ensure, and which are reasonably expected to continue to ensure, continued compliance therewith. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(xxxiv) <U>Money
Laundering Laws</U>. The operations of the Company and its subsidiaries are and have been conducted at all times in compliance with applicable financial recordkeeping and reporting requirements of the Currency and Foreign Transactions Reporting Act
of 1970, as amended, the money laundering statutes of all applicable jurisdictions, the rules and regulations thereunder and any related or similar rules, regulations or guidelines, issued, administered or enforced by any Governmental Entity
(collectively, the &#147;Money Laundering Laws&#148;); and no action, suit or proceeding by or before any Governmental Entity involving the Company or any of its subsidiaries with respect to the Money Laundering Laws is pending or, to the knowledge
of the Company, threatened. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(xxxv) <U>OFAC</U>. None of the Company, any of its subsidiaries or, to the knowledge of the
Company, any director, officer, agent, employee, affiliate or representative of the Company or any of its subsidiaries is an individual or entity (&#147;Person&#148;) currently the subject or target of any sanctions administered or enforced by the
United States Government, including, without limitation, the U.S. Department of the Treasury&#146;s Office of Foreign Assets Control, the United Nations Security Council, the European Union, Her Majesty&#146;s Treasury, or other relevant sanctions
authority (collectively, &#147;Sanctions&#148;), nor is the Company located, organized or resident in a country or territory that is the subject of Sanctions; and the Company will not directly or indirectly use the proceeds of the sale of the
Securities, or lend, contribute or otherwise make available such proceeds to any subsidiaries, joint venture partners or other Person, to fund any activities of or business with any Person, or in any country or territory, that, at the time of such
funding, is the subject of Sanctions or in any other manner that will result in a violation by any Person (including any Person participating in the transaction, whether as underwriter, advisor, investor or otherwise) of Sanctions. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(xxxvi) <U>Sales of Reserved Securities</U>. In connection with any offer and sale of Reserved Securities outside the United
States, each preliminary prospectus, the Prospectus and any amendment or supplement thereto, at the time it was filed, complied and will comply in all material respects with any applicable securities laws or regulations of foreign jurisdictions in
which the same is distributed. The Company has not offered, or caused the Representatives or Fidelity to offer, Reserved Securities to any person with the specific intent to unlawfully influence (i)&nbsp;a customer or supplier of the Company or any
of its affiliates to alter the customer&#146;s or supplier&#146;s level or type of business with any such entity or (ii)&nbsp;a trade journalist or publication to write or publish favorable information about the Company or any of its affiliates, or
their respective businesses or products. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(xxxvii) <U>Lending Relationship</U><I>. </I>The Company does not intend to use
any of the proceeds from the sale of the Securities to repay any outstanding debt owed to any affiliate of any Underwriter. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(xxxviii) <U>Statistical and Market-Related Data</U>. Any statistical and market-related data included in the Registration
Statement, the General Disclosure Package or the Prospectus are based on or derived from sources that the Company believes, after reasonable inquiry, to be reliable and accurate in all material respects and, to the extent required, the Company has
obtained the written consent to the use of such data from such sources </P>
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(xxxix) [Reserved.] </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(xl) <U>Finder&#146;s Fees</U>. Except as described in the General Disclosure Package and the Prospectus, there are no
contracts, agreements or understandings between the Company and any person that would give rise to a valid claim against the Company or any Underwriter for a brokerage commission, finder&#146;s fee or other like payment in connection with this
offering. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(xli) <U>Forward-Looking Statements</U>. No forward-looking statement contained in the Registration Statement,
the General Disclosure Package or the Prospectus has been made by the Company without a reasonable basis or has been disclosed by the Company other than in good faith. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(xlii) <U>Road Show</U>. The Company has publicly filed on EDGAR at least 15 days prior to any &#147;road show&#148; (as
defined in Rule 433(h)(4)) any confidentially submitted registration statement and registration statement amendments relating to the offer and sale of the Common Stock. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(xliii) <U>Compliance with ERISA</U>. (i)&nbsp;Each employee benefit plan, within the meaning of Section&nbsp;3(3) of the
Employee Retirement Income Security Act of 1974, as amended (&#147;ERISA&#148;), for which the Company or any member of its &#147;Controlled Group&#148; (defined as any organization which is a member of a controlled group of corporations within the
meaning of Section&nbsp;414 of the Internal Revenue Code of 1986, as amended (the &#147;Code&#148;)) would have any liability (each, an &#147;ERISA Plan&#148;) has been maintained in compliance with its terms and the requirements of any applicable
statutes, orders, rules and regulations, including but not limited to ERISA and the Code, except for noncompliance that could not reasonably be expected to result in material liability to the Company or its subsidiaries; (ii)&nbsp;no prohibited
transaction, within the meaning of Section&nbsp;406 of ERISA or Section&nbsp;4975 of the Code, has occurred with respect to any ERISA Plan, excluding transactions effected pursuant to a statutory or administrative exemption, that could reasonably be
expected to result in a material liability to the Company or its subsidiaries; (iii)&nbsp;for each ERISA Plan that is subject to the funding rules of Section&nbsp;412 of the Code or Section&nbsp;302 of ERISA, the minimum funding standard of
Section&nbsp;412 of the Code or Section&nbsp;302 of ERISA, as applicable, has been satisfied (without taking into account any waiver thereof or extension of any amortization period) and is reasonably expected to be satisfied in the future (without
taking into account any waiver thereof or extension of any amortization period); (iv) the fair market value of the assets of each ERISA Plan that is a defined benefit plan within the meaning of Section&nbsp;3(35) of ERISA (&#147;Pension Plan&#148;)
exceeds the present value of all benefits accrued under such Pension Plan (determined based on those assumptions used to fund such ERISA Plan); (v) no &#147;reportable event&#148; (within the meaning of Section&nbsp;4043(c) of ERISA) has occurred or
is reasonably expected to occur that either has resulted, or could reasonably be expected to result, in material liability to the Company or its subsidiaries; (vi)&nbsp;neither the Company nor any member of the Controlled Group has incurred, nor
reasonably expects to incur, any liability under Title IV of ERISA (other than contributions to the ERISA Plan or premiums to the Pension Benefit Guaranty Corporation, in the ordinary course and without default) in respect of an ERISA Plan
(including a &#147;multiemployer plan&#148;, within the meaning of Section&nbsp;4001(a)(3) of ERISA); and (vii)&nbsp;there is no pending audit or investigation by the Internal Revenue Service, the U.S. Department of Labor, the Pension Benefit
Guaranty Corporation or any other governmental agency or any foreign regulatory agency with respect to any ERISA Plan that could reasonably be expected to result in material liability to the Company or its subsidiaries. </P>
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(xliv) <U>Stock Options</U>. With respect to any stock options (the
&#147;Stock Options&#148;) granted pursuant to the stock-based compensation plans of the Company and its subsidiaries (the &#147;Company Stock Plans&#148;), (i) each Stock Option intended to qualify as an &#147;incentive stock option&#148; under
Section&nbsp;422 of the Code so qualifies, (ii)&nbsp;each grant of a Stock Option was duly authorized by all necessary corporate action and (iii)&nbsp;each such grant was made in all material respects in accordance with the terms of the Company
Stock Plans. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(xlv) <U>Cybersecurity</U>. Except where the impact of which would not reasonably be expected to result in a
Material Adverse Effect, (A)&nbsp;there has been no security breach or attack, unauthorized access or other compromise of or relating to the Company&#146;s or its subsidiaries&#146; information technology and computer systems, networks, hardware,
software, data (including, without limitation, the data of their respective customers, employees, suppliers, vendors and any third party data maintained by or on behalf of them), equipment or technology (collectively, &#147;IT Systems and
Data&#148;), (B) neither the Company nor its subsidiaries have been notified of, and none of them have any knowledge of any event or condition that would reasonably be expected to result in, any security breach or attack, unauthorized access or
other compromise to their IT Systems and Data and (C)&nbsp;the Company and its subsidiaries have implemented appropriate controls, policies, procedures, and technological safeguards reasonably likely to maintain and protect the integrity, continuous
operation, redundancy and security of their IT Systems and Data reasonably consistent with the standards and practices of their industry or as required by applicable regulatory standards. The Company and its subsidiaries are presently in compliance
with all applicable laws or statutes and all judgments, orders, rules and regulations of any court or arbitrator or governmental or regulatory authority, internal policies and contractual obligations relating to the privacy and security of IT
Systems and Data and to the protection of such IT Systems and Data from unauthorized use, access, misappropriation or modification, except as would not be reasonably expected to result in a Material Adverse Effect. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(b) <I>Officer&#146;s Certificates</I>. Any certificate signed by any officer of the Company or any of its subsidiaries delivered to the
Representative(s) or to counsel for the Underwriters pursuant to this Agreement shall be deemed a representation and warranty by the Company to each Underwriter as to the matters covered thereby. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(c) <I>Representations and Warranties by the Underwriters</I>. Each Underwriter represents and warrants to the Company as of the date hereof,
the Applicable Time, the Closing Time and any Date of Delivery, and agrees with the Company, as follows: </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(i) It has not
used and will not use, authorize use of, refer to or participate in the planning for use of, any &#147;free writing prospectus&#148; (as defined in Rule 405) which term, for purposes of this Section&nbsp;3B(a) includes use of any written information
furnished to the Commission by the Company and not included in the Registration Statement and any press release issued by the Company other than (i)&nbsp;a free writing prospectus that contains no &#147;issuer information&#148; (as defined in Rule
433(h)(2) under the 1933 Act) that was not included in the Preliminary Prospectus or a previously filed Issuer Free Writing Prospectus, (ii)&nbsp;any Issuer Free Writing Prospectus listed on Schedule <FONT STYLE="white-space:nowrap">B-2</FONT> or
prepared pursuant to Section&nbsp;1(a)(iv) above or Section&nbsp;3(l) below (including any electronic road show approved in advance by the Company), or (iii)&nbsp;any free writing prospectus prepared by such underwriter and approved by the Company
in advance in writing. </P>
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(ii) It has not used and will not, without the prior written consent of the
Company, use any free writing prospectus that contains the final terms of the Securities unless such terms have previously been included in a free writing prospectus filed with the Commission; <I>provided, </I><I>however,</I> that Underwriters may
use a term sheet substantially in the form of Schedule <FONT STYLE="white-space:nowrap">B-1</FONT> hereto without the consent of the Company; <I>provided</I> <I>further,</I> that a Representative shall notify the Company, and provide a copy of such
term sheet to the Company, prior to, or substantially concurrently with, the first use of such term sheet by any Underwriter </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(iii) It is not subject to any pending proceeding under Section&nbsp;8A of the 1933 Act with respect to the offering (and will
promptly notify the Company if any such proceeding against it is initiated during the period in which when a prospectus relating to the Securities is (or, but for the exception afforded by Rule 172 under the 1933 Act Regulations (&#147;Rule
172&#148;), would be) required by the 1933 Act. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(iv) It has not engaged in any <FONT STYLE="white-space:nowrap"><FONT
STYLE="white-space:nowrap">Testing-the-Waters</FONT></FONT> Communications or distributed any Written <FONT STYLE="white-space:nowrap"><FONT STYLE="white-space:nowrap">Testing-the-Waters</FONT></FONT> Communications other than those listed on
Schedule <FONT STYLE="white-space:nowrap">B-3</FONT> hereto. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">SECTION 2. <U>Sale and Delivery to Underwriters; Closing</U>. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(a) <I>Initial Securities</I>. On the basis of the representations and warranties herein contained and subject to the terms and conditions
herein set forth, the Company agrees to sell to each Underwriter, severally and not jointly, and each Underwriter, severally and not jointly, agrees to purchase from the Company, at the price per share set forth in Schedule A, that number of Initial
Securities set forth in Schedule A opposite the name of such Underwriter, plus any additional number of Initial Securities which such Underwriter may become obligated to purchase pursuant to the provisions of Section&nbsp;10 hereof, subject, in each
case, to such adjustments among the Underwriters as the Representatives in their sole discretion shall make to eliminate any sales or purchases of fractional shares. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(b) <I>Option Securities</I>. In addition, on the basis of the representations and warranties herein contained and subject to the terms and
conditions herein set forth, the Company hereby grants an option to the Underwriters, severally and not jointly, to purchase up to an additional
[<U>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</U>] shares of Common Stock, at the price per share set forth in Schedule A, less an amount per
share equal to any dividends or distributions declared by the Company and payable on the Initial Securities but not payable on the Option Securities. The option hereby granted may be exercised for 30&nbsp;days after the date hereof and may be
exercised in whole or in part at any time from time to time within the <FONT STYLE="white-space:nowrap">30-day</FONT> period upon written notice by the Representatives to the Company setting forth the number of Option Securities as to which the
several Underwriters are then exercising the option and the time and date of payment and delivery for such Option Securities. Any such time and date of delivery (a &#147;Date of Delivery&#148;) shall be determined by the Representatives, but shall
not be later than seven full business days after the exercise of said option, nor in any event prior to the date that is two full business days after such notice is provided (except in the event the Representatives determine a Date of Delivery will
occur at the Closing Time, in which case such notice must be provided on or before the business day immediately preceding the Closing Time). If the option is exercised as to all or any portion of the Option Securities, each of the Underwriters,
acting severally and not jointly, will purchase that proportion of the total number of Option Securities then being purchased which the number of Initial Securities set forth in Schedule A opposite the name of such Underwriter bears to the total
number of Initial Securities, subject, in each case, to such adjustments as the Representatives in their sole discretion shall make to eliminate any sales or purchases of fractional shares. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(c) <I>Payment</I>. Payment of the purchase price for, and delivery of certificates or security entitlements for, the Initial Securities shall
be made at the offices of Wilson Sonsini Goodrich&nbsp;&amp; Rosati, P.C., 650 Page Mill Road, Palo Alto, California 94304, or at such other place as shall be agreed upon by the Representatives and the Company, at 9:00&nbsp;A.M. (New York City time)
on the second (third, if the Applicable Time is after 4:30 P.M. (New York City time) on any given day) business day after the date hereof (unless postponed in accordance with the provisions of Section&nbsp;10), or such other time not later than ten
business days after such date as shall be agreed upon by the Representatives and the Company (such time and date of payment and delivery being herein called &#147;Closing Time&#148;). </P>
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">In addition, in the event that any or all of the Option Securities are purchased by the
Underwriters, payment of the purchase price for, and delivery of certificates or security entitlements for, such Option Securities shall be made at the <FONT STYLE="white-space:nowrap">above-mentioned</FONT> offices, or at such other place as shall
be agreed upon by the Representatives and the Company, on each Date of Delivery as specified in the notice from the Representatives to the Company. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Payment shall be made to the Company by wire transfer of immediately available funds to a bank account designated by the Company against
delivery to the Representatives for the respective accounts of the Underwriters of certificates or security entitlements for the Securities to be purchased by them. It is understood that each Underwriter has authorized the Representatives, for its
account, to accept delivery of, receipt for, and make payment of the purchase price for, the Initial Securities and the Option Securities, if any, which it has agreed to purchase. Each of the Representatives, individually and not as representative
of the Underwriters, may (but shall not be obligated to) make payment of the purchase price for the Initial Securities or the Option Securities, if any, to be purchased by any Underwriter whose funds have not been received by the Closing Time or the
relevant Date of Delivery, as the case may be, but such payment shall not relieve such Underwriter from its obligations hereunder. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">SECTION 3. <U>Covenants of the Company</U>. The Company covenants with each Underwriter as follows: </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(a) <I>Compliance with Securities Regulations and Commission Requests</I>. The Company, subject to Section&nbsp;3(b), will comply with the
requirements of Rule 430A, and will promptly notify the Representatives, and confirm the notice in writing (which may be by electronic mail), (i) when any post-effective amendment to the Registration Statement shall become effective or any amendment
or supplement to the Prospectus shall have been filed, (ii)&nbsp;of the receipt of any comments from the Commission regarding the Registration Statement, the Prospectus or the offering or sale of the Securities, (iii)&nbsp;of any request by the
Commission for any amendment to the Registration Statement or any amendment or supplement to the Prospectus or for additional information, (iv)&nbsp;of the issuance by the Commission of any stop order suspending the effectiveness of the Registration
Statement or any post-effective amendment or of any order preventing or suspending the use of any preliminary prospectus or the Prospectus, or of the suspension of the qualification of the Securities for offering or sale in any jurisdiction, or of
the initiation or, to the Company&#146;s knowledge, threatening, of any proceedings for any of such purposes or of any examination pursuant to Section&nbsp;8(d) or 8(e) of the 1933 Act concerning the Registration Statement and (v)&nbsp;if the
Company becomes the subject of a proceeding under Section&nbsp;8A of the 1933 Act in connection with the offering of the Securities. The Company will effect all filings required under Rule 424(b), in the manner and within the time period required by
Rule 424(b) (without reliance on Rule 424(b)(8)), and will take such steps as it deems necessary to ascertain promptly whether the form of prospectus transmitted for filing under Rule 424(b) was received for filing by the Commission and, in the
event that it was not, it will promptly file such prospectus. The Company will use commercially reasonable efforts to prevent the issuance of any stop order or suspension of the Registration Statement and, if any such order is issued, use
commercially reasonable efforts to promptly obtain the lifting thereof. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(b) <I>Continued Compliance with Securities Laws</I>. The Company
will comply with the 1933 Act and the 1933 Act Regulations so as to permit the completion of the distribution of the Securities as contemplated in this Agreement and in the Registration Statement, the General Disclosure Package and the Prospectus.
If at any time when a prospectus relating to the Securities is (or, but for the exception </P>
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afforded by Rule 172, would be) required by the 1933 Act to be delivered in connection with sales of the Securities, any event shall occur or condition shall exist as a result of which it is
necessary, in the reasonable opinion of counsel for the Underwriters or for the Company, to (i)&nbsp;amend the Registration Statement in order that the Registration Statement will not include an untrue statement of a material fact or omit to state a
material fact required to be stated therein or necessary to make the statements therein not misleading, (ii)&nbsp;amend or supplement the General Disclosure Package or the Prospectus in order that the General Disclosure Package or the Prospectus, as
the case may be, will not include any untrue statement of a material fact or omit to state a material fact necessary in order to make the statements therein not misleading in the light of the circumstances existing at the time it is delivered to a
purchaser or (iii)&nbsp;amend the Registration Statement or amend or supplement the General Disclosure Package or the Prospectus, as the case may be, in order to comply with the requirements of the 1933 Act or the 1933 Act Regulations, the Company
will promptly (A)&nbsp;give the Representatives notice of such event, (B)&nbsp;prepare any amendment or supplement as may be necessary to correct such statement or omission or to make the Registration Statement, the General Disclosure Package or the
Prospectus comply with such requirements and, a reasonable amount of time prior to any proposed filing or use, furnish the Representatives with copies of any such amendment or supplement and (C)&nbsp;file with the Commission any such amendment or
supplement; provided that the Company shall not file or use any such amendment or supplement to which the Representatives or counsel for the Underwriters shall reasonably object. The Company will furnish to the Underwriters such number of copies of
such amendment or supplement as the Underwriters may reasonably request. The Company will give the Representatives notice of its intention to make any filing pursuant to the 1934 Act or 1934 Act Regulations from the Applicable Time to the Closing
Time and will furnish the Representatives with copies of any such documents a reasonable amount of time prior to such proposed filing, as the case may be, and will not file or use any such document to which the Representatives or counsel for the
Underwriters shall reasonably object in a timely manner. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(c) <I>Delivery of Registration Statements</I>. To the extent requested, the
Company has furnished or, upon reasonable request, will deliver to the Representatives and counsel for the Underwriters, without charge, conformed copies of the Registration Statement as originally filed and each amendment thereto (including
exhibits filed therewith) and conformed copies of all consents and certificates of experts. The copies of the Registration Statement and each amendment thereto furnished to the Underwriters will be identical to the electronically transmitted copies
thereof filed with the Commission pursuant to EDGAR, except to the extent permitted by Regulation <FONT STYLE="white-space:nowrap">S-T.</FONT> </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(d) <I>Delivery of Prospectuses</I>. The Company has delivered to each Underwriter, without charge, as many copies of each preliminary
prospectus as such Underwriter reasonably requested, and the Company hereby consents to the use of such copies for purposes permitted by the 1933 Act. The Company will furnish to each Underwriter, without charge, during the period when a prospectus
relating to the Securities is (or, but for the exception afforded by Rule 172, would be) required to be delivered under the 1933 Act, such number of copies of the Prospectus (as amended or supplemented) as such Underwriter may reasonably request.
The Prospectus and any amendments or supplements thereto furnished to the Underwriters will be identical to the electronically transmitted copies thereof filed with the Commission pursuant to EDGAR, except to the extent permitted by Regulation <FONT
STYLE="white-space:nowrap">S-T.</FONT> </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(e) <I>Blue Sky Qualifications</I>. If required by applicable law, the Company will use
commercially reasonable efforts, in cooperation with the Underwriters, to qualify the Securities for offering and sale under the applicable securities laws of such states and other jurisdictions (domestic or foreign) as the Representatives may
reasonably designate in advance and to maintain such qualifications in effect so long as required to complete the distribution of the Securities; provided, however, that the Company shall not be obligated to file any general consent to service of
process or to qualify as a foreign corporation or as a dealer in securities in any jurisdiction in which it is not so qualified or to subject itself to taxation in respect of doing business in any jurisdiction in which it is not otherwise so
subject. </P>
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(f) <I>Rule 158</I>. The Company will timely file such reports pursuant to the 1934 Act as
are necessary in order to make generally available to its securityholders (which shall be deemed to have been satisfied by filing with the Commission pursuant to EDGAR) as soon as practicable an earnings statement (which need not be audited) for the
purposes of, and to provide to the Underwriters the benefits contemplated by, the last paragraph of Section&nbsp;11(a) of the 1933 Act. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(g) <I>Use of Proceeds</I>. The Company will use the net proceeds received by it from the sale of the Securities in the manner specified in
the Registration Statement, the General Disclosure Package and the Prospectus under &#147;Use of Proceeds.&#148; </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(h) <I>Listing</I>. The
Company will use its commercially reasonable efforts to effect and maintain the listing of the Common Stock (including the Securities) on the New York Stock Exchange. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(i) <I>Restriction on Sale of Securities</I>. During a period of 180 days from the date of the Prospectus, the Company will not, without the
prior written consent of the Representatives, (i)&nbsp;directly or indirectly, offer, pledge, sell, contract to sell, sell any option or contract to purchase, purchase any option or contract to sell, grant any option, right or warrant to purchase or
otherwise transfer or dispose of any shares of Common Stock or any securities convertible into or exercisable or exchangeable for Common Stock or file or confidentially submit any registration statement under the 1933 Act with respect to any of the
foregoing or (ii)&nbsp;enter into any swap or any other agreement or transaction that transfers, in whole or in part, directly or indirectly, the economic consequence of ownership of the Common Stock, whether any such swap or transaction described
in clause (i)&nbsp;or (ii) above is to be settled by delivery of Common Stock or other securities, in cash or otherwise. The foregoing sentence shall not apply to (A)&nbsp;the Securities to be sold hereunder, (B)&nbsp;any shares of Common Stock
issued by the Company upon the exercise (including any net exercise or exercise by delivery of already-owned shares of Common Stock) of an option or warrant or the conversion of a security outstanding on the date hereof and referred to in the
Registration Statement, the General Disclosure Package and the Prospectus, (C)&nbsp;any shares of Common Stock (restricted or otherwise), options to purchase Common Stock, restricted stock units covering shares of Common Stock or other equity
incentive awards granted pursuant to existing employee benefit, <FONT STYLE="white-space:nowrap">non-employee</FONT> director compensation or other equity incentive plans of the Company referred to in the Registration Statement, the General
Disclosure Package and the Prospectus, (D)&nbsp;the filing by the Company of a registration statement with the Commission on Form <FONT STYLE="white-space:nowrap">S-8</FONT> or a successor form thereto with respect to the registration of securities
to be offered under any plans or programs referred to in clause (C)&nbsp;above, (E) shares issued upon the redemption of the Company&#146;s Series <FONT STYLE="white-space:nowrap">A-1</FONT> Convertible Preferred Stock, (F)&nbsp;shares of Common
Stock issuable in connection with any <FONT STYLE="white-space:nowrap">earn-out</FONT> payment related to the acquisition of CTEH, or (G)&nbsp;the sale or issuance of or entry into an agreement to sell or issue shares of Common Stock or securities
convertible into or exercisable or exchangeable for Common Stock in connection with any (i)&nbsp;merger, (ii) acquisition of securities, businesses, property or other assets, (iii)&nbsp;joint venture, (iv)&nbsp;commercial relationship or
(v)&nbsp;other strategic alliance or relationship, provided, that the aggregate number of shares of Common Stock, or securities convertible into or exercisable or exchangeable for Common Stock (on an
<FONT STYLE="white-space:nowrap">as-converted,</FONT> <FONT STYLE="white-space:nowrap">as-exercised</FONT> or <FONT STYLE="white-space:nowrap">as-exchanged</FONT> basis, as the case may be), that the Company may sell or issue or agree to sell or
issue pursuant to this clause (G), exclusive of any shares issued pursuant to subclause (F), shall not exceed 7.5% of the total number of shares of the Common Stock issued and outstanding immediately following the completion of the transactions
contemplated by this Agreement (including the issuance of the Securities and the issuance of shares in connection with the redemption of the Series <FONT STYLE="white-space:nowrap">A-1</FONT> Convertible Preferred Stock), and provided further, that
each recipient of shares of Common Stock or securities convertible into or exercisable or exchangeable for Common Stock pursuant to clauses (E), (F) or (G)&nbsp;during the <FONT STYLE="white-space:nowrap">180-day</FONT> restricted period provided
for in this Section&nbsp;3(i) shall enter into an agreement substantially in the form of Exhibit A hereto for the remainder of such <FONT STYLE="white-space:nowrap">180-day</FONT> restricted period to the extent such recipient did not previously
enter into such an agreement with the Representatives and the Company shall impose stop-transfer instructions as set forth in Exhibit A with respect to the shares of Common Stock or other securities of the Company that are subject to such agreements
during such <FONT STYLE="white-space:nowrap">180-day</FONT> restricted period. </P>
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(j) If the Representatives, in their sole discretion, agree to release or waive the
restrictions set forth in a <FONT STYLE="white-space:nowrap">lock-up</FONT> agreement described in Section&nbsp;5(i) hereof for an officer or director of the Company and provide the Company with notice of the impending release or waiver at least
three business days before the effective date of the release or waiver, the Company agrees to announce the impending release or waiver by a press release substantially in the form of Exhibit B hereto through a major news service at least two
business days before the effective date of the release or waiver. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(k) <I>Reporting Requirements</I>. The Company, during the period when
a Prospectus relating to the Securities is (or, but for the exception afforded by Rule 172, would be) required to be delivered under the 1933 Act, will file all documents required to be filed with the Commission pursuant to the 1934 Act within the
time periods required by the 1934 Act and 1934 Act Regulations. Additionally, the Company shall report the use of proceeds from the issuance of the Securities as may be required under Rule 463 under the 1933 Act. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(l) <I>Issuer Free Writing Prospectuses</I>. The Company agrees that, unless it obtains the prior written consent of the Representatives,
which will not be unreasonably conditioned, withheld or delayed, it will not make any offer relating to the Securities that would constitute an Issuer Free Writing Prospectus or that would otherwise constitute a &#147;free writing prospectus&#148;
as defined in Rule 405, or a portion thereof, required to be filed by the Company with the Commission or retained by the Company under Rule 433; provided that the Representatives will be deemed to have consented to the Issuer Free Writing
Prospectuses listed on Schedule <FONT STYLE="white-space:nowrap">B-2</FONT> hereto and any &#147;road show for an offering that is a written communication&#148; within the meaning of Rule 433(d)(8)(i) that has been reviewed by the Representatives.
The Company represents that it has treated or agrees that it will treat each such free writing prospectus consented to, or deemed consented to, by the Representatives as an &#147;issuer free writing prospectus,&#148; as defined in Rule 433, and that
it has complied and will comply with the applicable requirements of Rule 433 with respect thereto, including timely filing with the Commission where required, legending and record keeping. If at any time following issuance of an Issuer Free Writing
Prospectus there occurred or occurs an event or development as a result of which such Issuer Free Writing Prospectus conflicted or would conflict with the information contained in the Registration Statement, any preliminary prospectus or the
Prospectus or included or would include an untrue statement of a material fact or omitted or would omit to state a material fact necessary in order to make the statements therein, in the light of the circumstances existing at that subsequent time,
not misleading, the Company will promptly notify the Representatives and will promptly amend or supplement, at its own expense, such Issuer Free Writing Prospectus to eliminate or correct such conflict, untrue statement or omission. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(m) <I>Certification Regarding Beneficial Owners</I>. The Company will deliver to the Representatives, on or before the date of execution of
this Agreement, a properly completed and executed Certification Regarding Beneficial Owners of Legal Entity Customers, together with copies of identifying documentation, and the Company undertakes to provide such additional supporting documentation
as the Representatives have reasonably requested at least two business days prior to the date hereof in connection with the verification of the foregoing certification. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(n) <I>Compliance with FINRA Rules</I>. The Company hereby agrees that it will ensure that the Reserved Securities purchased by directors or
officers of the Company, if any, will be restricted as required by FINRA or the FINRA rules from sale, transfer, assignment, pledge or hypothecation for a period of 180 days from the date of the Prospectus, which obligation shall deemed to have been
satisfied by any such person&#146;s execution of an agreement substantially in the form of Exhibit&nbsp;A hereto delivered in satisfaction of the condition set forth in Section&nbsp;5(j) hereof. The Underwriters will notify the Company as to which
persons will need to be so restricted. At the request of the Underwriters, the Company will direct the transfer agent to place a stop transfer restriction upon such securities for such period of time. </P>
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(o)
<I><FONT STYLE="white-space:nowrap"><FONT STYLE="white-space:nowrap">Testing-the-Waters</FONT></FONT> Materials</I>. If at any time following the distribution of any Written
<FONT STYLE="white-space:nowrap"><FONT STYLE="white-space:nowrap">Testing-the-Waters</FONT></FONT> Communication there occurred or occurs an event or development as a result of which such Written <FONT STYLE="white-space:nowrap"><FONT
STYLE="white-space:nowrap">Testing-the-Waters</FONT></FONT> Communication included or would include an untrue statement of a material fact or omitted or would omit to state a material fact necessary in order to make the statements therein, in the
light of the circumstances existing at the time at which such Written <FONT STYLE="white-space:nowrap"><FONT STYLE="white-space:nowrap">Testing-the-Waters</FONT></FONT> Communication was made, not misleading, the Company will promptly notify the
Representatives and will promptly amend or supplement, at its own expense, such Written <FONT STYLE="white-space:nowrap"><FONT STYLE="white-space:nowrap">Testing-the-Waters</FONT></FONT> Communication to eliminate or correct such untrue statement or
omission. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(p) <I>Emerging Growth Company Status</I>. The Company will promptly notify the Representatives if the Company ceases to be an
Emerging Growth Company at any time prior to the later of (i)&nbsp;completion of the distribution of the Securities within the meaning of the 1933 Act and (ii)&nbsp;completion of the <FONT STYLE="white-space:nowrap">180-day</FONT> restricted period
referred to in Section&nbsp;3(i). </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">SECTION 4. <U>Payment of Expenses</U>. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(a) <I>Expenses</I>. The Company will pay or cause to be paid all expenses incident to the performance of its obligations under this
Agreement, including (i)&nbsp;the preparation, printing and filing of the Registration Statement (including financial statements and exhibits) as originally filed and each amendment thereto, (ii)&nbsp;the preparation, printing and delivery to the
Underwriters of copies of each preliminary prospectus, each Issuer Free Writing Prospectus and the Prospectus and any amendments or supplements thereto and any costs associated with electronic delivery of any of the foregoing by the Underwriters to
investors, (iii)&nbsp;the preparation, issuance and delivery of the certificates or security entitlements for the Securities to the Underwriters, including any stock or other transfer taxes and any stamp or other duties payable upon the sale,
issuance or delivery of the Securities to the Underwriters, (iv)&nbsp;the fees and disbursements of the Company&#146;s counsel, accountants and other advisors (excluding the Underwriters), provided that the Company shall only be responsible for the
fees and disbursements of any such advisor engaged by the Underwriters on behalf of the Company to the extent the Company consented in writing to such engagement on its behalf and the payment of such fees and disbursements, (v)&nbsp;subject to the
limitation set forth in clause (viii)&nbsp;below, the qualification of the Securities under securities laws in accordance with the provisions of Section&nbsp;3(e) hereof, including filing fees and the reasonable and documented fees and disbursements
of counsel for the Underwriters in connection therewith and in connection with the preparation of the Blue Sky Survey and any supplement thereto, (vi)&nbsp;the fees and expenses of any transfer agent or registrar for the Securities, (vii)&nbsp;the
costs and expenses of the Company relating to investor presentations on any &#147;road show&#148; undertaken in connection with the marketing of the Securities, including without limitation, expenses associated with the production of road show
slides and graphics, fees and expenses of any consultants engaged by the Company in connection with the road show presentations, travel and lodging expenses of the representatives and officers of the Company and any such consultants (it being
understood that the Underwriters will pay or cause to be paid the travel and lodging expenses of their representatives), and 50% of the cost of aircraft and other transportation chartered with the Company&#146;s prior written consent in connection
with the road show (it being understood that the Underwriters will pay or cause to be paid the other 50% of the cost of such aircraft or other transportation), (viii) the filing fees incident to, and the reasonable and documented fees and
disbursements of counsel to the Underwriters in connection with, the review by FINRA of the terms of the sale of the Securities, provided that the amount payable by the Company pursuant to this clause (viii)&nbsp;and clause (v)&nbsp;above shall not
exceed $35,000 in the aggregate, (ix)&nbsp;the fees and expenses incurred in connection with the listing of the Securities on the New York Stock Exchange and (x)&nbsp;the costs and expenses of the Company relating to the Program. Except as provided
in this Section&nbsp;4, the Underwriters will pay all of their own costs and expenses, including the fees and disbursements of their counsel, stock transfer taxes payable on the resale of any of the Securities by them and any advertising expenses
connected with any offers they may make. </P>
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(b) <I>Termination of Agreement</I>. If this Agreement is terminated by the Representatives
in accordance with the provisions of Section&nbsp;5 or Section&nbsp;9(a)(i) or (iii)&nbsp;hereof, the Company shall reimburse the Underwriters for all of their reasonable and documented
<FONT STYLE="white-space:nowrap"><FONT STYLE="white-space:nowrap">out-of-pocket</FONT></FONT> expenses actually incurred, including the reasonable and documented fees and disbursements of one counsel for the Underwriters incurred in connection with
investigating, marketing and proposing to market the Securities or in contemplation of performing their obligations hereunder; but the Company shall not in any event be liable to any of the several Underwriters for damages on account of loss of
anticipated profits from the sale by them of the Securities. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">SECTION 5. <U>Conditions of Underwriters&#146; Obligations</U>. The
obligations of the several Underwriters hereunder are subject to the accuracy of the representations and warranties of the Company contained herein or in certificates of any officer of the Company or any of its subsidiaries delivered pursuant to the
provisions hereof, to the performance by the Company of its covenants and other obligations hereunder, and to the following further conditions: </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(a) <I>Effectiveness of Registration Statement; Rule 430A Information</I>. The Registration Statement, including any Rule 462(b) Registration
Statement, has become effective and, at the Closing Time, no stop order suspending the effectiveness of the Registration Statement or any post-effective amendment thereto has been issued under the 1933 Act, no order preventing or suspending the use
of any preliminary prospectus or the Prospectus has been issued and no proceedings for any of those purposes have been instituted or are pending or, to the Company&#146;s knowledge, threatened by the Commission; and the Company has complied with
each request (if any) from the Commission for additional information. A prospectus containing the Rule 430A Information shall have been filed with the Commission in the manner and within the time frame required by Rule 424(b) without reliance on
Rule 424(b)(8) or a post-effective amendment providing such information shall have been filed with, and declared effective by, the Commission in accordance with the requirements of Rule 430A. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(b) <I>Opinion of Counsel for Company</I>. At the Closing Time, the Representatives shall have received the opinion, dated the Closing Time,
of Gibson, Dunn&nbsp;&amp; Crutcher LLP, counsel for the Company, in form and substance reasonably satisfactory to counsel for the Underwriters. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(c) <I>Opinion of Counsel for Underwriters</I>. At the Closing Time, the Representatives shall have received the opinion, dated the Closing
Time, of Wilson Sonsini Goodrich&nbsp;&amp; Rosati, P.C., counsel for the Underwriters, in form and substance reasonably satisfactory to counsel for the Underwriters. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(d) <I>Officers&#146; Certificate</I>. At the Closing Time, there shall not have been, since the date hereof or since the respective dates as
of which information is given in the Registration Statement, the General Disclosure Package or the Prospectus, any Material Adverse Effect, and the Representatives shall have received a certificate of the Chief Executive Officer or the President of
the Company and of the chief financial or chief accounting officer of the Company, dated the Closing Time, to the effect that (i)&nbsp;there has been no such Material Adverse Effect, (ii)&nbsp;the representations and warranties of the Company in
this Agreement are true and correct in all material respects with the same force and effect as though expressly made at and as of the Closing Time, (iii)&nbsp;the Company has complied in all material respects with all agreements and satisfied all
conditions on its part to be performed or satisfied at or prior to the Closing Time, and (iv)&nbsp;no stop order suspending the effectiveness of the Registration Statement under the 1933 Act has been issued, no order preventing or suspending the use
of any preliminary prospectus or the Prospectus has been issued and no proceedings for any of those purposes have been instituted or are pending or, to their knowledge, threatened by the Commission. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">21 </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(e) <I>CFO Certificate</I>. The chief financial officer of the Company shall have furnished
to the Representatives a certificate as to the accuracy of certain financial and other specified information included in the Registration Statement, the General Disclosure Package and the Prospectus, providing &#147;management comfort&#148; with
respect to such information, dated such Date of Delivery, in form and substance reasonably satisfactory to the Representatives; </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(f)
<I>Accountant&#146;s Comfort Letter</I>. At the time of the execution of this Agreement, the Representatives shall have received from each of Deloitte&nbsp;&amp; Touche LLP, DiCicco Gulman&nbsp;&amp; Company LLP and HoganTaylor LLP a letter, dated
such date, in form and substance reasonably satisfactory to the Representatives, together with signed or reproduced copies of such letter for each of the other Underwriters containing statements and information of the type ordinarily included in
accountants&#146; &#147;comfort letters&#148; to underwriters with respect to the financial statements and certain financial information contained in the Registration Statement, the General Disclosure Package and the Prospectus. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(g) <I>Bring-down Comfort Letter</I>. At the Closing Time, the Representatives shall have received from each of Deloitte&nbsp;&amp; Touche
LLP, DiCicco Gulman&nbsp;&amp; Company LLP and HoganTaylor LLP a letter, dated as of the Closing Time, to the effect that they reaffirm the statements made in their respective letters furnished pursuant to subsection (f)&nbsp;of this Section, except
that the specified date referred to shall be a date not more than three business days prior to the Closing Time. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(h) <I>Approval of
Listing</I>. At the Closing Time, the Securities shall have been approved for listing on the New York Stock Exchange, subject only to official notice of issuance. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(i) <I>No Objection</I>. FINRA has confirmed that it has not raised any objection with respect to the fairness and reasonableness of the
underwriting terms and arrangements relating to the offering of the Securities. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(j) <I><FONT STYLE="white-space:nowrap">Lock-up</FONT>
Agreements</I>. At the date of this Agreement, the Representatives shall have received an agreement substantially in the form of Exhibit&nbsp;A hereto signed by (i)&nbsp;each member of the Company&#146;s board of directors, (ii)&nbsp;each executive
officer of the Company and (iii)&nbsp;substantially all of the other holders of the Company&#146;s securities. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(k) <I>Maintenance of
Rating</I>. Neither the Company nor its subsidiaries have any debt securities or preferred stock that are rated by any &#147;nationally recognized statistical rating organization&#148; (as defined in Section&nbsp;3(a)(62) of the 1934 Act). </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(l) <I>Conditions to Purchase of Option Securities</I>. In the event that the Underwriters exercise their option provided in Section&nbsp;2(b)
hereof to purchase all or any portion of the Option Securities, the representations and warranties of the Company contained herein and the statements in any certificates furnished by the Company and any of its subsidiaries hereunder shall be true
and correct in all respects as of each Date of Delivery and, at the relevant Date of Delivery, the Representatives shall have received: </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(i) <U>Officers&#146; Certificate</U>. A certificate, dated such Date of Delivery, of the Chief Executive Officer, President or
a Vice President of the Company and of the chief financial or chief accounting officer of the Company confirming that the certificate delivered at the Closing Time pursuant to Section&nbsp;5(d) hereof remains true and correct as of such Date of
Delivery. </P>
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(ii) <U>Opinion of Counsel for Company</U>. If requested by the
Representatives, the opinion of Gibson, Dunn&nbsp;&amp; Crutcher LLP, counsel for the Company, dated such Date of Delivery, relating to the Option Securities to be purchased on such Date of Delivery and otherwise to the same effect as the opinion
required by Section&nbsp;5(b) hereof. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(iii) <U>Opinion of Counsel for Underwriters</U>. If requested by the
Representatives, the opinion of Wilson Sonsini Goodrich&nbsp;&amp; Rosati, P.C., counsel for the Underwriters, dated such Date of Delivery, relating to the Option Securities to be purchased on such Date of Delivery and otherwise to the same effect
as the opinion required by Section&nbsp;5(c) hereof. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(v) <U>Bring-down Comfort Letter</U>. If requested by the
Representatives, a letter from each of Deloitte&nbsp;&amp; Touche LLP, DiCicco Gulman&nbsp;&amp; Company LLP and HoganTaylor LLP, in form and substance reasonably satisfactory to the Representatives and dated such Date of Delivery, substantially in
the same form and substance as the letter furnished by it to the Representatives pursuant to Section&nbsp;5(e) hereof, except that the &#147;specified date&#148; in the letter furnished pursuant to this paragraph shall be a date not more than three
business days prior to such Date of Delivery. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(m) <I>Additional Documents</I>. At the Closing Time and at each Date of Delivery (if any)
counsel for the Underwriters shall have been furnished with such documents and certificates as they may reasonably require for the purpose of enabling them to pass upon the issuance and sale of the Securities as herein contemplated, or in order to
evidence the accuracy of any of the representations or warranties, or the fulfillment of any of the conditions, herein contained; and all proceedings taken by the Company in connection with the issuance and sale of the Securities as herein
contemplated shall be reasonably satisfactory in form and substance to the Representatives and counsel for the Underwriters. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(n)
<I>Termination of Agreement</I>. If any condition specified in this Section&nbsp;5 shall not have been fulfilled when and as required to be fulfilled, unless such failure is due to or the result of a breach of this Agreement by any of the
Underwriters, this Agreement, or, in the case of any condition to the purchase of Option Securities on a Date of Delivery which is after the Closing Time, the obligations of the several Underwriters to purchase the relevant Option Securities, may be
terminated by the Representatives by notice to the Company at any time at or prior to Closing Time or such Date of Delivery, as the case may be, and such termination shall be without liability of any party to any other party except as provided in
Section&nbsp;4 and except that Sections 6, 7, 8, 14, 15 and 16 shall survive any such termination and remain in full force and effect. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">SECTION 6. <U>Indemnification</U>. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(a) <I>Indemnification of Underwriters</I>. The Company agrees to indemnify and hold harmless each Underwriter, its affiliates (as such term
is defined in Rule 501(b) under the 1933 Act (each, an &#147;Affiliate&#148;)), its selling agents and each person, if any, who controls any Underwriter within the meaning of Section&nbsp;15 of the 1933 Act or Section&nbsp;20 of the 1934 Act as
follows: </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(i) against any and all loss, liability, claim, damage and reasonable and documented expense arising out of any
untrue statement or alleged untrue statement of a material fact contained in the Registration Statement (or any amendment thereto), including the Rule 430A Information, or the omission or alleged omission therefrom of a material fact required to be
stated therein or necessary to make the statements therein not misleading or arising out of any untrue statement or alleged untrue statement of a material fact included in any preliminary prospectus, any Issuer Free Writing Prospectus, any Written <FONT
STYLE="white-space:nowrap"><FONT STYLE="white-space:nowrap">Testing-the-Waters</FONT></FONT> Communication, any road show as defined in Rule 433(h) under the 1933 Act (a &#147;Road Show&#148;), the General Disclosure
</P>
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman">
Package or the Prospectus (or any amendment or supplement thereto), or the omission or alleged omission in any preliminary prospectus, Issuer Free Writing Prospectus, any Written <FONT
STYLE="white-space:nowrap"><FONT STYLE="white-space:nowrap">Testing-the-Waters</FONT></FONT> Communication, any Road Show or the Prospectus of a material fact necessary in order to make the statements therein, in the light of the circumstances under
which they were made, not misleading; </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(ii) against any and all loss, liability, claim, damage and reasonable and
documented expense to the extent of the aggregate amount paid in settlement of any litigation, or any investigation or proceeding by any governmental agency or body, commenced or threatened, or of any claim whatsoever based upon any such untrue
statement or omission, or any such alleged untrue statement or omission; provided that (subject to Section&nbsp;6(d) below) any such settlement is effected with the prior written consent of the Company; </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(iii) against any and all reasonable and documented
<FONT STYLE="white-space:nowrap"><FONT STYLE="white-space:nowrap">out-of-pocket</FONT></FONT> expenses incurred in connection with any suit, action or proceeding or any claim asserted, as incurred (including the reasonable and documented fees and
disbursements of counsel chosen by the Representatives; provided however, that the Company shall not be liable for the expenses of more than one separate counsel in the aggregate for all Underwriters, in addition to any local counsel), reasonably
incurred in investigating, preparing or defending against any litigation, or any investigation or proceeding by any governmental agency or body, commenced or threatened, or any claim whatsoever based upon any such untrue statement or omission, or
any such alleged untrue statement or omission, to the extent that any such expense is not paid under (i)&nbsp;or (ii) above; </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">provided, however, that this
indemnity agreement shall not apply to any loss, liability, claim, damage or expense to the extent arising out of any untrue statement or omission or alleged untrue statement or omission made in the Registration Statement (or any amendment thereto),
including the Rule 430A Information, any preliminary prospectus, any Issuer Free Writing Prospectus, any Written <FONT STYLE="white-space:nowrap"><FONT STYLE="white-space:nowrap">Testing-the-Waters</FONT></FONT> Communication, any Road Show, the
General Disclosure Package, or the Prospectus (or any amendment or supplement thereto) in reliance upon and in conformity with the Underwriter Information. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(b) <I>Indemnification of Company, Directors and Officers</I>. Each Underwriter severally agrees to indemnify and hold harmless the Company,
its directors, each of its officers who signed the Registration Statement, and each person, if any, who controls the Company within the meaning of Section&nbsp;15 of the 1933 Act and Section&nbsp;20 of the 1934 Act, against any and all loss,
liability, claim, damage and expense described in the indemnity contained in subsection (a)&nbsp;of this Section&nbsp;7, and with respect to such expenses, as incurred, but only with respect to untrue statements or omissions, or alleged untrue
statements or omissions, made in the Registration Statement (or any amendment thereto), including the Rule 430A Information, any preliminary prospectus, any Issuer Free Writing Prospectus, any Written <FONT STYLE="white-space:nowrap"><FONT
STYLE="white-space:nowrap">Testing-the-Waters</FONT></FONT> Communication, any Road Show, the General Disclosure Package, or the Prospectus (or any amendment or supplement thereto) in reliance upon and in conformity with the Underwriter Information.
</P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(c) <I>Actions against Parties; Notification</I>. Each indemnified party shall give written notice (email to suffice) as promptly as
reasonably practicable to each indemnifying party of any action commenced against it in respect of which indemnity may be sought hereunder, but failure to so notify an indemnifying party shall not relieve such indemnifying party from any liability
under Section&nbsp;6(a) or 6(b) to the extent it is not materially prejudiced (through the forfeiture of substantive rights or defenses) as a result thereof and in any event shall not relieve it from any liability which it may have otherwise than on
account of this indemnity agreement. In the case of parties indemnified pursuant to Section&nbsp;6(a) above, counsel to the indemnified parties shall be selected by the Representatives, and, in the case of parties
</P>
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indemnified pursuant to Section&nbsp;6(b) above, counsel to the indemnified parties shall be selected by the Company. An indemnifying party may participate at its own expense in the defense of
any such action; provided, however, that counsel to the indemnifying party shall not (except with the consent of the indemnified party) also be counsel to the indemnified party. In case any such action shall be brought against any indemnified party
and it shall notify the indemnifying party of the commencement thereof, the indemnifying party shall be entitled to participate therein and, to the extent that it shall wish, jointly with any other indemnifying party similarly notified, to assume
the defense thereof, with counsel reasonably satisfactory to such indemnified party (who shall not, except with the consent of the indemnified party, be counsel to the indemnifying party), and, after notice from the indemnifying party to such
indemnified party of its election so to assume the defense thereof, the indemnifying party shall not be liable to such indemnified party under such subsection for any legal expenses of other counsel or any other expenses, in each case subsequently
incurred by such indemnified party, in connection with the defense thereof (other than reasonable and documented costs of investigation). Without limiting the foregoing, in any such action or proceeding where the indemnifying party has notified the
indemnified party of its election to assume the defense thereof, an indemnified party shall have the right to retain its own counsel, but the fees and expenses of such counsel shall be at the expense of such indemnified party unless (i)&nbsp;the
indemnifying party and the indemnified party shall have mutually agreed to the contrary; (ii)&nbsp;the indemnifying party has failed within a reasonable time to retain counsel reasonably satisfactory to the indemnified party; or (iii)&nbsp;if based
on the advice of counsel (which may include <FONT STYLE="white-space:nowrap">in-house</FONT> counsel), (x) there may be legal defenses available to it that are different from or in addition to those available to the indemnifying party; or
(y)&nbsp;representation of both parties by the same counsel would be inappropriate due to actual or potential differing interests between them. In no event shall the indemnifying parties, in connection with any proceeding or related proceeding in
the same jurisdiction, be liable for fees and expenses of more than one separate counsel (in addition to any local counsel) for all indemnified parties. No indemnifying party shall, without the prior written consent of the indemnified parties,
settle or consent on behalf of an indemnified party to the entry of any judgment with respect to any litigation, or any investigation or proceeding by any governmental agency or body, commenced or threatened, or any claim whatsoever in respect of
which an indemnified party is or could have been a party thereto and indemnification or contribution is being sought or could have been sought in respect thereof under this Section&nbsp;6 or Section&nbsp;7 hereof, unless such settlement, compromise
or consent (i)&nbsp;includes an unconditional release of each indemnified party from all liability arising out of such litigation, investigation, proceeding or claim and (ii)&nbsp;does not include a statement as to or an admission of fault,
culpability or a failure to act by or on behalf of any indemnified party. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(d) <I>Settlement without Consent if Failure to Reimburse</I>.
The indemnifying party shall not be liable for any settlement of any proceeding effected without its written consent, but if settled with such consent, the indemnifying party agrees to indemnify each indemnified party from and against any loss or
liability by reason of such settlement. Notwithstanding the foregoing, if at any time an indemnified party shall have requested an indemnifying party to reimburse the indemnified party for the reasonable and documented
<FONT STYLE="white-space:nowrap"><FONT STYLE="white-space:nowrap">out-of-pocket</FONT></FONT> fees and expenses of counsel, such indemnifying party agrees that it shall be liable for any settlement effected without its written consent if
(i)&nbsp;such settlement is entered into more than 60 days after receipt by such indemnifying party of the aforesaid request, (ii)&nbsp;such indemnifying party shall have received notice of the terms of such settlement at least 45 days prior to such
settlement being entered into and (iii)&nbsp;such indemnifying party shall not have reimbursed such indemnified party in accordance with such request prior to the date of such settlement, unless such failure to reimburse the indemnified parties is
based on a dispute in good faith as to either the obligation of the indemnifying party arising under this Section&nbsp;6 to indemnify the indemnified parties or the amount of such obligation and the indemnifying parties shall have notified the
indemnified parties of such good faith dispute prior to the date of such settlement. </P>
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(e) <I>Remedies</I>. The remedies provided for in this Section&nbsp;6 are not exclusive and
shall not limit any rights or remedies which may otherwise be available to any indemnified party at law or in equity. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">SECTION 7.
<U>Contribution</U>. If the indemnification provided for in Section&nbsp;6 hereof is for any reason unavailable to or insufficient to hold harmless an indemnified party under Section&nbsp;6 in respect of any losses, liabilities, claims, damages or
expenses referred to therein, then each indemnifying party shall contribute to the aggregate amount of such losses, liabilities, claims, damages and expenses incurred by such indemnified party, as incurred, (i)&nbsp;in such proportion as is
appropriate to reflect the relative benefits received by the Company, on the one hand, and the Underwriters, on the other hand, from the offering of the Securities pursuant to this Agreement or (ii)&nbsp;if the allocation provided by clause
(i)&nbsp;is not permitted by applicable law, in such proportion as is appropriate to reflect not only the relative benefits referred to in clause (i)&nbsp;above but also the relative fault of the Company, on the one hand, and of the Underwriters, on
the other hand, in connection with the statements or omissions. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The relative benefits received by the Company, on the one hand, and the
Underwriters, on the other hand, from the offering of the Securities pursuant to this Agreement shall be deemed to be in the same respective proportions as the total net proceeds from the offering of the Securities pursuant to this Agreement (before
deducting expenses) received by the Company, on the one hand, and the total underwriting discount received by the Underwriters (before deducting expenses), on the other hand, in each case as set forth on the cover of the Prospectus, bear to the
aggregate initial public offering price of the Securities as set forth on the cover of the Prospectus. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The relative fault of the Company,
on the one hand, and the Underwriters, on the other hand, shall be determined by reference to, among other things, whether any such untrue or alleged untrue statement of a material fact or omission or alleged omission to state a material fact
relates to information supplied by the Company or by the Underwriters and the parties&#146; relative intent, knowledge, access to information and opportunity to correct or prevent such statement or omission. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The Company and the Underwriters agree that it would not be just and equitable if contribution pursuant to this Section&nbsp;7 were determined
by pro rata allocation (even if the Underwriters were treated as one entity for such purpose) or by any other method of allocation which does not take account of the equitable considerations referred to above in this Section&nbsp;7. The aggregate
amount of losses, liabilities, claims, damages and expenses incurred by an indemnified party and referred to above in this Section&nbsp;7 shall be deemed to include any legal or other expenses reasonably incurred by such indemnified party in
investigating or defending against any such indemnifiable action or claim. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Notwithstanding the provisions of this Section&nbsp;7, no
Underwriter shall be required to contribute any amount in excess of the underwriting commissions received by such Underwriter in connection with the Securities underwritten by it and distributed to the public. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">No person guilty of fraudulent misrepresentation (within the meaning of Section&nbsp;11(f) of the 1933 Act) shall be entitled to contribution
from any person who was not guilty of such fraudulent misrepresentation. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">For purposes of this Section&nbsp;7, each person, if any, who
controls an Underwriter within the meaning of Section&nbsp;15 of the 1933 Act or Section&nbsp;20 of the 1934 Act and each Underwriter&#146;s Affiliates and selling agents shall have the same rights to contribution as such Underwriter, and each
director of the Company, each officer of the Company who signed the Registration Statement, and each person, if any, who controls the Company within the meaning of Section&nbsp;15 of the 1933 Act or Section&nbsp;20 of the 1934 Act shall have the
same rights to contribution as the Company. The Underwriters&#146; respective obligations to contribute pursuant to this Section&nbsp;7 are several in proportion to the number of Initial Securities set forth opposite their respective names in
Schedule A hereto and not joint. </P>
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">SECTION 8. <U>Representations, Warranties and Agreements to Survive</U>. All
representations, warranties and agreements contained in this Agreement or in certificates of officers of the Company or any of its subsidiaries submitted pursuant hereto, shall remain operative and in full force and effect regardless of (i)&nbsp;any
investigation made by or on behalf of any Underwriter or its Affiliates or selling agents, any person controlling any Underwriter, its officers or directors or any person controlling the Company and (ii)&nbsp;delivery of and payment for the
Securities. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">SECTION 9. <U>Termination of Agreement</U>. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(a) <I>Termination</I>. The Representatives may terminate this Agreement, by notice to the Company, at any time after the execution of this
agreement and at or prior to the Closing Time (i)&nbsp;if there has been, in the judgment of the Representatives, since the time of execution of this Agreement or since the respective dates as of which information is given in the Registration
Statement, the General Disclosure Package or the Prospectus, there has occurred a Material Adverse Effect, that is not described in the General Disclosure Package, such as to make it, in the judgment of the Representatives impractical or inadvisable
to proceed with the completion of the offering contemplated hereby, or (ii)&nbsp;if there has occurred any material adverse change in the financial markets in the United States or the international financial markets such as to make it, in the
judgment of the Representatives impractical or inadvisable to proceed with the completion of the offering contemplated hereby, or (iii)&nbsp;any outbreak of hostilities or escalation thereof or other calamity or crisis or any change or development
involving national or international political, financial or economic conditions, in each case the effect of which is such as to make it, in the judgment of the Representatives, impracticable or inadvisable to proceed with the completion of the
offering or to enforce contracts for the sale of the Securities, or (iv)&nbsp;if trading in any securities of the Company has been suspended or materially limited by the Commission or the New York Stock Exchange, or (v)&nbsp;if trading generally on
the New York Stock Exchange has been suspended or materially limited (other than limitations on hours of trading), or minimum or maximum prices for trading have been fixed, or maximum ranges for prices have been required, by the New York Stock
Exchange or by order of the Commission, FINRA or any other governmental authority, or (vi)&nbsp;a material disruption has occurred in commercial banking or securities settlement or clearance services in the United States, or (vii)&nbsp;if a banking
moratorium has been declared by either Federal or New York authorities. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(b) <I>Liabilities</I>. If this Agreement is terminated pursuant
to this Section&nbsp;9, such termination shall be without liability of any party to any other party except as provided in Section&nbsp;4 hereof, and provided further that Sections 6, 7, 8, 14, 15, 16 and 17 shall survive such termination and remain
in full force and effect. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">SECTION 10. <U>Default by One or More of the Underwriters</U>. If one or more of the Underwriters shall fail at
the Closing Time or a Date of Delivery to purchase the Securities which it or they are obligated to purchase under this Agreement (the &#147;Defaulted Securities&#148;), the Representatives shall have the right, within 24&nbsp;hours thereafter, to
make arrangements for one or more of the <FONT STYLE="white-space:nowrap">non-defaulting</FONT> Underwriters, or any other underwriters, to purchase all, but not less than all, of the Defaulted Securities in such amounts as may be agreed upon and
upon the terms herein set forth; if, however, the Representatives shall not have completed such arrangements within such <FONT STYLE="white-space:nowrap">24-hour</FONT> period, then: </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(i) if the number of Defaulted Securities does not exceed 10% of the number of Securities to be purchased on such date, each
of the <FONT STYLE="white-space:nowrap">non-defaulting</FONT> Underwriters shall be obligated, severally and not jointly, to purchase the full amount thereof in the proportions that their respective underwriting obligations hereunder bear to the
underwriting obligations of all <FONT STYLE="white-space:nowrap">non-defaulting</FONT> Underwriters, or </P>
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(ii) if the number of Defaulted Securities exceeds 10% of the number of
Securities to be purchased on such date, this Agreement or, with respect to any Date of Delivery which occurs after the Closing Time, the obligation of the Underwriters to purchase, and the Company to sell, the Option Securities to be purchased and
sold on such Date of Delivery shall terminate without liability on the part of any <FONT STYLE="white-space:nowrap">non-defaulting</FONT> Underwriter or the Company, except that the Company and the Underwriters will continue to be liable for the
payment of expenses as set forth in Section&nbsp;4 hereof and the provisions of Sections 6, 7, 14, 15, 16 and 17 hereof shall not terminate and shall remain in effect. Notwithstanding the foregoing, nothing herein shall relieve a defaulting
Underwriter from liability for its default. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">No action taken pursuant to this Section shall relieve any defaulting Underwriter from
liability in respect of its default. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">In the event of any such default which does not result in a termination of this Agreement or, in the
case of a Date of Delivery which is after the Closing Time, which does not result in a termination of the obligation of the Underwriters to purchase and the Company to sell the relevant Option Securities, as the case may be, either the
(i)&nbsp;Representatives or (ii)&nbsp;the Company shall have the right to postpone Closing Time or the relevant Date of Delivery, as the case may be, for a period not exceeding seven days in order to effect any required changes in the Registration
Statement, the General Disclosure Package or the Prospectus or in any other documents or arrangements. As used herein, the term &#147;Underwriter&#148; includes any person substituted for an Underwriter under this Section&nbsp;10. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">SECTION 11. <U>Notices</U>. All notices and other communications hereunder shall be in writing and shall be deemed to have been duly given if
mailed or transmitted by any standard form of telecommunication. Notices to the Underwriters shall be directed to the Representatives at BofA, One Bryant Park, New York, New York 10036, attention of Syndicate Department (facsimile: (646) <FONT
STYLE="white-space:nowrap">855-3073),</FONT> with a copy to ECM Legal (facsimile: (212) <FONT STYLE="white-space:nowrap">230-8730);</FONT> and William Blair, 150 N. Riverside Plaza, Suite 4600, Chicago, Illinois 60606 (facsimile: <FONT
STYLE="white-space:nowrap"><FONT STYLE="white-space:nowrap">312-551-4646;</FONT></FONT> Attention: General Counsel); and notices to the Company shall be directed to it at 1 Park Plaza, Suite 100, Irvine, California 92614, attention: Chief Executive
Officer. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">SECTION 12. <U>No Advisory or Fiduciary Relationship</U>. The Company acknowledges and agrees that (a)&nbsp;the purchase and
sale of the Securities pursuant to this Agreement, including the determination of the initial public offering price of the Securities and any related discounts and commissions, is an <FONT STYLE="white-space:nowrap">arm&#146;s-length</FONT>
commercial transaction between the Company, on the one hand, and the several Underwriters, on the other hand, (b)&nbsp;in connection with the offering of the Securities and the process leading thereto, each Underwriter is and has been acting solely
as a principal and is not the agent or fiduciary of the Company, any of its subsidiaries or their respective stockholders, creditors, employees or any other party, (c)&nbsp;no Underwriter has assumed or will assume an advisory or fiduciary
responsibility in favor of the Company with respect to the offering of the Securities or the process leading thereto (irrespective of whether such Underwriter has advised or is currently advising the Company or any of its subsidiaries on other
matters) and no Underwriter has any obligation to the Company with respect to the offering of the Securities except the obligations expressly set forth in this Agreement, (d)&nbsp;the Underwriters and their respective affiliates may be engaged in a
broad range of transactions that involve interests that differ from those of the Company and (e)&nbsp;the Underwriters have not provided any legal, accounting, regulatory or tax advice with respect to the offering of the Securities and the Company
has consulted its own respective legal, accounting, regulatory and tax advisors to the extent it deemed appropriate. </P>
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">SECTION 13. <U>Recognition of the U.S. Special Resolution Regimes</U>. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(a) In the event that any Underwriter that is a Covered Entity becomes subject to a proceeding under a U.S. Special Resolution Regime, the
transfer from such Underwriter of this Agreement, and any interest and obligation in or under this Agreement, will be effective to the same extent as the transfer would be effective under the U.S. Special Resolution Regime if this Agreement, and any
such interest and obligation, were governed by the laws of the United States or a state of the United States. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(b) In the event that any
Underwriter that is a Covered Entity or a BHC Act Affiliate of such Underwriter becomes subject to a proceeding under a U.S. Special Resolution Regime, Default Rights under this Agreement that may be exercised against such Underwriter are permitted
to be exercised to no greater extent than such Default Rights could be exercised under the U.S. Special Resolution Regime if this Agreement were governed by the laws of the United States or a state of the United States. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">For purposes of this Section&nbsp;13, a &#147;BHC Act Affiliate&#148; has the meaning assigned to the term &#147;affiliate&#148; in, and shall be interpreted
in accordance with, 12 U.S.C. &#167; 1841(k). &#147;Covered Entity&#148; means any of the following: (i)&nbsp;a &#147;covered entity&#148; as that term is defined in, and interpreted in accordance with, 12 C.F.R. &#167; 252.82(b); (ii) a
&#147;covered bank&#148; as that term is defined in, and interpreted in accordance with, 12 C.F.R. &#167; 47.3(b); or (iii)&nbsp;a &#147;covered FSI&#148; as that term is defined in, and interpreted in accordance with, 12 C.F.R. &#167; 382.2(b).
<B>&#147;</B>Default Right&#148; has the meaning assigned to that term in, and shall be interpreted in accordance with, 12 C.F.R. &#167;&#167; 252.81, 47.2 or 382.1, as applicable. &#147;U.S. Special Resolution Regime&#148; means each of
(i)&nbsp;the Federal Deposit Insurance Act and the regulations promulgated thereunder and (ii)&nbsp;Title II of the Dodd-Frank Wall Street Reform and Consumer Protection Act and the regulations promulgated thereunder. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">SECTION 14. <U>Parties</U>. This Agreement shall each inure to the benefit of and be binding upon the Underwriters and the Company and their
respective successors. Nothing expressed or mentioned in this Agreement is intended or shall be construed to give any person, firm or corporation, other than the Underwriters and the Company and their respective successors and the controlling
persons and officers and directors referred to in Sections&nbsp;6 and 7 and their heirs and legal representatives, any legal or equitable right, remedy or claim under or in respect of this Agreement or any provision herein contained. This Agreement
and all conditions and provisions hereof are intended to be for the sole and exclusive benefit of the Underwriters and the Company and their respective successors, and said controlling persons and officers and directors and their heirs and legal
representatives, and for the benefit of no other person, firm or corporation. No purchaser of Securities from any Underwriter shall be deemed to be a successor by reason merely of such purchase. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">SECTION 15. <U>Trial by Jury</U>. The Company (on its behalf and, to the extent permitted by applicable law, on behalf of its stockholders and
affiliates) and each of the Underwriters hereby irrevocably waives, 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 Agreement or the transactions
contemplated hereby. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">SECTION 16. <U>GOVERNING LAW</U>. THIS AGREEMENT AND ANY CLAIM, CONTROVERSY OR DISPUTE ARISING UNDER OR RELATED TO
THIS AGREEMENT SHALL BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE WITH THE LAWS OF, THE STATE OF NEW YORK WITHOUT REGARD TO ITS CHOICE OF LAW PROVISIONS. </P>
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">SECTION 17. <U>Consent to Jurisdiction; Waiver of Immunity</U>. Any legal suit, action or
proceeding arising out of or based upon this Agreement or the transactions contemplated hereby shall&nbsp;be instituted in (i)&nbsp;the federal courts of the United States of America located in the City and County of New York, Borough of Manhattan
or&nbsp;(ii) the courts of the State of New York located in the City and County of New York, Borough of Manhattan (collectively, the &#147;Specified Courts&#148;), and each party irrevocably submits to the exclusive jurisdiction (except for
proceedings instituted in regard to the enforcement of a judgment of any such court, as to which such jurisdiction is <FONT STYLE="white-space:nowrap">non-exclusive)</FONT> of such courts in any such suit, action or proceeding. Service of any
process, summons, notice or document by mail to such party&#146;s address set forth above shall be effective service of process for any suit, action or other proceeding brought in any such court. The parties 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 in any such court that any such suit, action or other proceeding brought in
any such court has been brought in an inconvenient forum. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">SECTION 18. <U>TIME</U>. TIME SHALL BE OF THE ESSENCE OF THIS AGREEMENT. EXCEPT
AS OTHERWISE SET FORTH HEREIN, SPECIFIED TIMES OF DAY REFER TO NEW YORK CITY TIME. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">SECTION 19. <U>Counterparts</U>. This Agreement may be
executed in any number of counterparts, each of which shall be deemed to be an original, but all such counterparts shall together constitute one and the same Agreement. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">SECTION 20. <U>Effect of Headings</U>. The Section headings herein are for convenience only and shall not affect the construction hereof. </P>

 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">30 </P>

</DIV></Center>


<p style="margin-top:1em; margin-bottom:0em; page-break-before:always">
<HR SIZE="3" style="COLOR:#999999" WIDTH="100%" ALIGN="CENTER">


<Center><DIV STYLE="width:8.5in" align="left">
 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">If the foregoing is in accordance with your understanding of our agreement, please sign and
return to the Company a counterpart hereof, whereupon this instrument, along with all counterparts, will become a binding agreement among the Underwriters and the Company in accordance with its terms. </P>
<P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><DIV ALIGN="right">
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="40%" BORDER="0" STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt">


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<TD></TD>

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<TD WIDTH="99%"></TD></TR>


<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" COLSPAN="3">Very truly yours,</TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16" COLSPAN="3"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" COLSPAN="3">MONTROSE ENVIRONMENTAL GROUP, INC.</TD></TR></TABLE></DIV> <DIV ALIGN="right">
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="40%" BORDER="0" STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt">


<TR>

<TD WIDTH="5%"></TD>

<TD VALIGN="bottom" WIDTH="1%"></TD>
<TD WIDTH="94%"></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>

<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">By</TD>
<TD VALIGN="bottom" STYLE=" BORDER-BOTTOM:1px solid #000000">&nbsp;</TD>
<TD VALIGN="top" STYLE="BORDER-BOTTOM:1px solid #000000">&nbsp;</TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"><U></U>Title:</TD></TR>
</TABLE></DIV> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="40%" BORDER="0" STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt">


<TR>

<TD></TD>

<TD VALIGN="bottom" WIDTH="1%"></TD>
<TD WIDTH="99%"></TD></TR>


<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" COLSPAN="3"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">CONFIRMED AND ACCEPTED,<BR>as of the date first above written:</P></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16" COLSPAN="3"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" COLSPAN="3"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">BOFA SECURITIES, INC.</P> <P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:10pt; font-family:Times New Roman">WILLIAM
BLAIR&nbsp;&amp; COMPANY, L.L.C.</P></TD></TR></TABLE> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="40%" BORDER="0" STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt">


<TR>

<TD WIDTH="6%"></TD>

<TD VALIGN="bottom" WIDTH="1%"></TD>
<TD WIDTH="93%"></TD></TR>

<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" COLSPAN="3">By: BOFA SECURITIES, INC.</TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">By</TD>
<TD VALIGN="bottom" STYLE=" BORDER-BOTTOM:1px solid #000000">&nbsp;</TD>
<TD VALIGN="top" STYLE="BORDER-BOTTOM:1px solid #000000">&nbsp;</TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="center">Authorized Signatory</TD></TR>
</TABLE> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="40%" BORDER="0" STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt">


<TR>

<TD WIDTH="6%"></TD>

<TD VALIGN="bottom" WIDTH="1%"></TD>
<TD WIDTH="93%"></TD></TR>


<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" COLSPAN="3">By: WILLIAM BLAIR&nbsp;&amp; COMPANY, L.L.C.</TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">By</TD>
<TD VALIGN="bottom" STYLE=" BORDER-BOTTOM:1px solid #000000">&nbsp;</TD>
<TD VALIGN="top" STYLE="BORDER-BOTTOM:1px solid #000000">&nbsp;</TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="center">Authorized Signatory</TD></TR>
</TABLE> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">For themselves and as Representatives of the other Underwriters named in Schedule A hereto. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">31 </P>

</DIV></Center>


<p style="margin-top:1em; margin-bottom:0em; page-break-before:always">
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<Center><DIV STYLE="width:8.5in" align="left">
 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">SCHEDULE A </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">The initial public offering price per share for the Securities shall be $&#9679;. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">The purchase price per share for the Securities to be paid by the several Underwriters shall be $&#9679;, being an amount equal to the initial public offering
price set forth above less $&#9679; per share, subject to adjustment in accordance with Section&nbsp;2(b) for dividends or distributions declared by the Company and payable on the Initial Securities but not payable on the Option Securities. </P>
<P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="92%" BORDER="0" STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" ALIGN="center">


<TR>

<TD WIDTH="82%"></TD>

<TD VALIGN="bottom" WIDTH="2%"></TD>
<TD></TD>
<TD></TD>
<TD></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:8pt">
<TD VALIGN="bottom">Name of Underwriter</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" COLSPAN="2" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000">Number&nbsp;of<BR>Initial&nbsp;Securities</TD>
<TD VALIGN="bottom">&nbsp;</TD></TR>


<TR BGCOLOR="#cceeff" STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">BofA Securities, Inc.</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">William Blair&nbsp;&amp; Company, L.L.C.</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD></TR>
<TR BGCOLOR="#cceeff" STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">BNP Paribas Securities Corp.</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Capital One Securities, Inc.</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD></TR>
<TR BGCOLOR="#cceeff" STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Stifel, Nicolaus &amp; Company</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Needham &amp; Company, LLC</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom"></TD></TR>
<TR STYLE="font-size:1px; ">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; border-top:1.00px solid #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
<TR BGCOLOR="#cceeff" STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:3.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Total</P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="right">&nbsp;&nbsp;&nbsp;&nbsp;[___________]&nbsp;&nbsp;&nbsp;&nbsp;</TD>
<TD NOWRAP VALIGN="bottom">&nbsp;</TD></TR>
<TR STYLE="font-size:1px; ">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; border-top:3.00px double #000000">&nbsp;</P></TD>
<TD VALIGN="bottom"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; border-top:3.00px double #000000">&nbsp;</P></TD>
<TD>&nbsp;</TD></TR>
</TABLE>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">Sch A-1 </P>

</DIV></Center>


<p style="margin-top:1em; margin-bottom:0em; page-break-before:always">
<HR SIZE="3" style="COLOR:#999999" WIDTH="100%" ALIGN="CENTER">


<Center><DIV STYLE="width:8.5in" align="left">
 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">SCHEDULE <FONT STYLE="white-space:nowrap">B-1</FONT> </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><U>Pricing Terms </U></P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">1. The Company is selling
[___________] shares of Common Stock. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">2. The Company has granted an option to the Underwriters, severally and not jointly, to purchase up to an
additional [___________] shares of Common Stock. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">3. The initial public offering price per share for the Securities shall be $[_____]. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">SCHEDULE <FONT STYLE="white-space:nowrap">B-2</FONT> </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><U>Free Writing Prospectuses </U></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B><I>[TO BE ADDED] </I></B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">SCHEDULE <FONT STYLE="white-space:nowrap">B-3</FONT> </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><U><FONT STYLE="white-space:nowrap"><FONT STYLE="white-space:nowrap">Testing-the-Waters-Communications</FONT></FONT> </U></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B><I>[TO BE ADDED] </I></B></P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">Sch B-1 </P>

</DIV></Center>


<p style="margin-top:1em; margin-bottom:0em; page-break-before:always">
<HR SIZE="3" style="COLOR:#999999" WIDTH="100%" ALIGN="CENTER">


<Center><DIV STYLE="width:8.5in" align="left">
 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="right">Exhibit A </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">FORM OF <FONT STYLE="white-space:nowrap">LOCK-UP</FONT> AGREEMENT </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">&#9679;, 2019 </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">BofA Securities, Inc. </P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">William Blair&nbsp;&amp; Company, L.L.C. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">as Representatives of
the several Underwriters </P> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="4%" VALIGN="top" ALIGN="left">c/o</TD>
<TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman; " ALIGN="left">BofA Securities, Inc. </P></TD></TR></TABLE>
<P STYLE="margin-top:0pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman">One Bryant Park </P> <P STYLE="margin-top:0pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman">New York, New
York 10036 </P> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="4%" VALIGN="top" ALIGN="left">c/o</TD>
<TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman; " ALIGN="left">William Blair&nbsp;&amp; Company, L.L.C. </P></TD></TR></TABLE>
<P STYLE="margin-top:0pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman">150 N. Riverside Plaza, Suite 4600 </P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman">Chicago, Illinois 60606 </P> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="4%">&nbsp;</TD>
<TD WIDTH="5%" VALIGN="top" ALIGN="left">Re:</TD>
<TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman; " ALIGN="left"><U>Proposed Public Offering by Montrose Environmental Group, Inc.</U> </P></TD></TR></TABLE>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Dear Sirs and Madams: </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The undersigned, a
stockholder, officer and/or director of Montrose Environmental Group, Inc., a Delaware corporation (the &#147;<B>Company</B>&#148;), understands that BofA Securities, Inc. (&#147;<B>BofA</B>&#148;) and William Blair&nbsp;&amp; Company, L.L.C.
(&#147;<B>William Blair</B>&#148; and, together with BofA, the &#147;<B>Representatives</B>&#148;) propose to enter into an Underwriting Agreement (the &#147;<B>Underwriting Agreement</B>&#148;) with the Company providing for the initial public
offering (the &#147;<B>Public Offering</B>&#148;) of shares of the Company&#146;s common stock, par value $0.000004 per share (the &#147;<B>Common Stock</B>&#148;). Capitalized terms not defined herein shall have the meaning ascribed to such terms
in the Underwriting Agreement. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">In recognition of the benefit that such an offering will confer upon the undersigned as a stockholder,
officer and/or director of the Company, and for other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the undersigned agrees that, during the period beginning on the date hereof and ending on the date
that is 180 days from the date of the Underwriting Agreement (the &#147;<B><FONT STYLE="white-space:nowrap">Lock-Up</FONT> Period</B>&#148;), the undersigned will not, without the prior written consent of the Representatives, (i)&nbsp;directly or
indirectly, offer, pledge, sell, contract to sell, sell any option or contract to purchase, purchase any option or contract to sell, grant any option, right or warrant to purchase or otherwise transfer or dispose of any shares of the Common Stock or
any securities convertible into or exercisable or exchangeable for Common Stock, whether now owned or hereafter acquired by the undersigned or with respect to which the undersigned has on the date hereof or hereafter acquires the power of
disposition (collectively, the &#147;<B><FONT STYLE="white-space:nowrap">Lock-Up</FONT> Securities</B>&#148;), or exercise any right with respect to the registration of any of the <FONT STYLE="white-space:nowrap">Lock-Up</FONT> Securities, or file,
cause to be filed or cause to be confidentially submitted any registration statement in connection therewith under the Securities Act of 1933, as amended, or (ii)&nbsp;enter into any swap, loan or any other agreement or transaction that transfers,
in whole or in part, directly or indirectly, the economic consequence of ownership of the <FONT STYLE="white-space:nowrap">Lock-Up</FONT> Securities, whether any such swap, loan or transaction is to be settled by delivery of Common Stock or other
securities, in cash or otherwise. The undersigned hereby represents and warrants that, as of the date hereof, the undersigned is not a party to any transaction described in subclauses (i)&nbsp;or (ii) above with respect to the <FONT
STYLE="white-space:nowrap">Lock-Up</FONT> Securities that would cause one or more of the events described in subclauess (i)&nbsp;or (ii) above to occur during the <FONT STYLE="white-space:nowrap">Lock-Up</FONT> Period. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">A-1 </P>

</DIV></Center>


<p style="margin-top:1em; margin-bottom:0em; page-break-before:always">
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<Center><DIV STYLE="width:8.5in" align="left">
 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">If the undersigned is an officer or director of the Company, (1)&nbsp;the Representatives
agree that, at least three business days before the effective date of any release or waiver of the foregoing restrictions in connection with a transfer of shares of the Common Stock, the Representatives will notify the Company of the impending
release or waiver, and (2)&nbsp;the Company has agreed or will agree in the Underwriting Agreement to announce the impending release or waiver by press release through a major news service (or other medium and method acceptable to the Financial
Industry Regulatory Authority, Inc.) at least two business days before the effective date of the release or waiver. Any release or waiver granted by the Representatives hereunder to any such officer or director shall only be effective two business
days after the publication date of such public notification. The provisions of this paragraph will not apply if (i)&nbsp;the release or waiver is effected solely to permit a transfer not for consideration and (ii)&nbsp;the transferee has agreed in
writing to be bound by the same terms described in this letter to the extent and for the duration that such terms remain in effect at the time of the transfer. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Notwithstanding the foregoing, and subject to the conditions below, as applicable, the undersigned may transfer the <FONT
STYLE="white-space:nowrap">Lock-Up</FONT> Securities without the prior written consent of the Representatives: </P> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="4%">&nbsp;</TD>
<TD WIDTH="5%" VALIGN="top" ALIGN="left">(i)</TD>
<TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman; " ALIGN="left">as a <I>bona fide</I> gift or gifts or charitable contribution; </P></TD></TR></TABLE>
<P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="4%">&nbsp;</TD>
<TD WIDTH="5%" VALIGN="top" ALIGN="left">(ii)</TD>
<TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman; " ALIGN="left">to trust, partnership, limited liability company or other entity for the direct or indirect benefit of the
undersigned or a member of the undersigned&#146;s immediate family or to a member of the undersigned&#146;s immediate family (for purposes of this letter, &#147;immediate family&#148; shall mean any relationship by blood, marriage or adoption, not
more remote than first cousin) or, in the case of a trust, to any beneficiaries any of the trust or to the estate of such trust; </P></TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="4%">&nbsp;</TD>
<TD WIDTH="5%" VALIGN="top" ALIGN="left">(iii)</TD>
<TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman; " ALIGN="left">upon death or by will, other testamentary document or intestate succession; </P></TD></TR></TABLE>
<P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="4%">&nbsp;</TD>
<TD WIDTH="5%" VALIGN="top" ALIGN="left">(iv)</TD>
<TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman; " ALIGN="left">for bona fide tax or estate planning purposes; </P></TD></TR></TABLE>
<P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="4%">&nbsp;</TD>
<TD WIDTH="5%" VALIGN="top" ALIGN="left">(v)</TD>
<TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman; " ALIGN="left">as a distribution to limited partners, partners, stockholders, limited liability company members, or other
equityholders of the undersigned; </P></TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="4%">&nbsp;</TD>
<TD WIDTH="5%" VALIGN="top" ALIGN="left">(vi)</TD>
<TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman; " ALIGN="left">to the undersigned&#146;s affiliates or to any investment fund or other entity controlled or managed by the
undersigned; </P></TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="4%">&nbsp;</TD>
<TD WIDTH="5%" VALIGN="top" ALIGN="left">(vii)</TD>
<TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman; " ALIGN="left">pursuant to an order of a court or regulatory agency (for purposes of this letter, a &#147;court or regulatory
agency&#148; means any domestic or foreign, federal, state or local government, including any political subdivision thereof, any governmental or quasi-governmental authority, department, agency or official, any court or administrative body or any
national securities exchange or similar self-regulatory body or organization, in each case of competent jurisdiction) or pursuant to a qualified domestic order or in connection with a divorce settlement; provided, that any filing under
Section&nbsp;16(a) of the Securities Exchange Act of 1934, as amended (the &#147;<B>Exchange Act</B>&#148;) in connection with such transfer shall indicate that such transfer is in connection with one or more of the foregoing; </P></TD></TR></TABLE>

 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">A-2 </P>

</DIV></Center>


<p style="margin-top:1em; margin-bottom:0em; page-break-before:always">
<HR SIZE="3" style="COLOR:#999999" WIDTH="100%" ALIGN="CENTER">


<Center><DIV STYLE="width:8.5in" align="left">

<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="4%">&nbsp;</TD>
<TD WIDTH="5%" VALIGN="top" ALIGN="left">(viii)</TD>
<TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman; " ALIGN="left">to a nominee or custodian of a person or entity to whom a disposition or transfer would be permissible under
clauses (i)-(vii) above; provided, that any filing under Section&nbsp;16(a) of the Exchange Act with respect to a disposition or transfer otherwise permissible under clause (vii)&nbsp;above shall be subject to the proviso in clause (vii);
</P></TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="4%">&nbsp;</TD>
<TD WIDTH="5%" VALIGN="top" ALIGN="left">(ix)</TD>
<TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman; " ALIGN="left">after the completion of the proposed Public Offering, pursuant to a bona-fide third-party tender offer, merger,
consolidation or other similar transaction made to all holders of the Common Stock involving a &#147;change of control&#148; (as defined below) of the Company that has been approved by the board of directors of the Company, <I>provided</I> that in
the event that the change of control is not consummated, such Common Stock shall remain subject to the terms of this letter for any remaining term hereof; for purposes of this clause (ix), &#147;change of control&#148; means the consummation of any
<I>bona fide</I> third party tender offer, merger, consolidation or other similar transaction the result of which is that any &#147;person&#148; (as defined in Section&nbsp;13(d)(3) of the Exchange Act), or group of persons, other than the Company,
becomes the beneficial owner (as defined in Rules <FONT STYLE="white-space:nowrap">13d-3</FONT> and <FONT STYLE="white-space:nowrap">13d-5</FONT> of the Exchange Act) of more than 50% of total voting power of the voting stock of the Company; or
</P></TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="4%">&nbsp;</TD>
<TD WIDTH="5%" VALIGN="top" ALIGN="left">(x)</TD>
<TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman; " ALIGN="left">to the Company or its subsidiaries (A)&nbsp;in connection with the repurchase of the undersigned&#146;s Common
Stock upon death, disability or termination of employment of the undersigned pursuant to an employment agreement, a shareholders&#146; agreement (or equivalent) or equity award in existence on the date hereof, (B)&nbsp;pursuant to arrangements under
which the Company has the option to repurchase such shares or a right of first refusal with respect to transfers of such securities or (C)&nbsp;in the exercise of outstanding options, warrants, restricted stock units or other equity interests,
including transfers deemed to occur upon the &#147;net&#148; or &#147;cashless&#148; exercise of options or for the sole purpose of paying the exercise price of such options, warrants, restricted stock units or other equity interests or for paying
taxes (including estimated taxes) due as a result of the exercise of such options, warrants, restricted stock units or other equity interests or as a result of the vesting of Common Stock under restricted stock awards, in each case pursuant to the
Company&#146;s equity incentive plans or other arrangement disclosed in the Registration Statement, the Prospectus or the General Disclosure Package; provided, that any filing under Section&nbsp;16(a) of the Exchange Act with respect to a
transaction described in this clause (vii)&nbsp;shall clearly indicate in the footnotes thereto that (I)&nbsp;the filing relates to the circumstances described in subclause (A), (B) or (C), as the case may be, (II)&nbsp;the reason for the
disposition and (III)&nbsp;the disposition was solely to the Company; provided, further, that any Common Stock received upon such exercise or other event described in subclause (C)&nbsp;shall be subject to the terms of this letter;
</P></TD></TR></TABLE> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">provided that (1)&nbsp;with respect to each of clauses (i)&nbsp;through (viii) above, the Representatives<B> </B>receive a signed <FONT
STYLE="white-space:nowrap">lock-up</FONT> agreement or other written agreement to be bound by the terms hereof for the balance of the <FONT STYLE="white-space:nowrap">lock-up</FONT> period from each donee, trustee, distributee, or transferee, as the
case may be, (2)&nbsp;with respect to each of clauses (i), (ii), (iv), (v), (vi) and (viii) (with respect to clause (viii), solely regarding dispositions or transfers other permissible under clauses (i), (ii), (iv), (v) and (vi)) above, such
transfer is not for value and does not require the reporting to the Securities and Exchange Commission on Form 4 in accordance with Section&nbsp;16(a) of the Exchange Act of a reduction in beneficial ownership of Common Stock and (3)&nbsp;the
undersigned does not otherwise voluntarily effect any public filing or report regarding such transfers. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Furthermore, the undersigned may
sell shares of Common Stock of the Company purchased by the undersigned on the open market following the Public Offering if and only if (i)&nbsp;such sales are not required to be reported in accordance with Section&nbsp;16(a) of the Exchange Act and
(ii)&nbsp;the undersigned does not otherwise voluntarily effect any public filing or report regarding such sales. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">A-3 </P>

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<Center><DIV STYLE="width:8.5in" align="left">
 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">In addition, the undersigned may establish or amend a trading plan pursuant to Rule <FONT
STYLE="white-space:nowrap">10b5-1</FONT> under the Exchange Act for the transfer of shares of Common Stock if and only if (i)&nbsp;such plan does not provide for the transfer of shares of Common Stock during the
<FONT STYLE="white-space:nowrap">lock-up</FONT> period and (ii)&nbsp;to the extent a public announcement or filing under the Exchange Act, if any, is required of or voluntarily made by or on behalf of the undersigned or the Company regarding the
establishment or amendment of such plan, such announcement or filing shall include a statement to the effect that no transfer of shares of Common Stock may be made under such plan during the <FONT STYLE="white-space:nowrap">lock-up</FONT> period.
</P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The undersigned hereby represents and warrants that the undersigned has full power and authority to enter into this letter. This letter
shall be governed by, and construed in accordance with, the laws of the state of New York. Notwithstanding anything to the contrary contained herein, this letter will automatically terminate and the undersigned will be released from all obligations
hereunder upon the earliest to occur, if any, of (i)&nbsp;the Company advises the Representatives or the Representatives advise the Company in writing that it has or they have, as applicable, determined not to proceed with the Public Offering,
(ii)&nbsp;the Company files an application with the Securities and Exchange Commission to withdraw the registration statement related to the Public Offering, (iii)&nbsp;the Underwriting Agreement is executed but is terminated (other than the
provisions thereof which survive termination) prior to payment for and delivery of the shares to be sold thereunder or (iv)&nbsp;June&nbsp;30, 2020, if the payment for and delivery of the shares to be sold pursuant to the Underwriting Agreement is
not completed by such date; provided, however, that the Company may, by written notice to the undersigned prior to such date, extend such date for a period of up to three additional months. This letter shall not be amended without the prior written
consent of the undersigned. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The undersigned hereby consents to receipt of this letter in electronic form and understands and agrees that
this letter may be signed electronically. In the event that any signature is delivered by facsimile transmission, electronic mail, or otherwise by electronic transmission evidencing an intent to sign this letter, such facsimile transmission,
electronic mail or other electronic transmission shall create a valid and binding obligation of the undersigned with the same force and effect as if such signature were an original. Execution and delivery of this letter by facsimile transmission,
electronic mail or other electronic transmission is legal, valid and binding for all purposes. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The undersigned acknowledges that the
Company will implement customary stop transfer instructions with the transfer agent and registrar against the transfer of the <FONT STYLE="white-space:nowrap">Lock-Up</FONT> Securities except in compliance with the foregoing restrictions. </P>
<P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><DIV ALIGN="right">
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<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" COLSPAN="3">Very truly yours,</TD></TR></TABLE></DIV> <DIV ALIGN="right">
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<TD VALIGN="top">Signature:</TD>
<TD VALIGN="bottom" STYLE=" BORDER-BOTTOM:1px solid #000000">&nbsp;</TD>
<TD VALIGN="top" STYLE="BORDER-BOTTOM:1px solid #000000">&nbsp;</TD></TR></TABLE></DIV> <DIV ALIGN="right">
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<TD HEIGHT="16" COLSPAN="2"></TD></TR>

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<TD VALIGN="top">Print&nbsp;Name:</TD>
<TD VALIGN="bottom" STYLE=" BORDER-BOTTOM:1px solid #000000">&nbsp;</TD>
<TD VALIGN="bottom" STYLE="BORDER-BOTTOM:1px solid #000000">&nbsp;</TD></TR>
</TABLE></DIV>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">A-4 </P>

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<Center><DIV STYLE="width:8.5in" align="left">
 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="right">Exhibit B </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">FORM OF PRESS RELEASE </P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">TO BE
ISSUED PURSUANT TO SECTION 3(j) </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">MONTROSE ENVIRONMENTAL GROUP, INC. </P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">[Date] </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">MONTROSE ENVIRONMENTAL GROUP, INC. (the
&#147;Company&#148;) announced today that BofA Securities and William Blair&nbsp;&amp; Company, L.L.C., the lead book-running managers in the Company&#146;s recent public sale of [___________] shares of common stock, are [waiving] [releasing] a <FONT
STYLE="white-space:nowrap">lock-up</FONT> restriction with respect to&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;shares of the Company&#146;s common stock held by [certain officers or directors] [an officer or director] of the Company. The
[waiver] [release] will take effect on&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;,&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;20&nbsp;&nbsp;&nbsp;&nbsp;, and the shares may be sold on or after
such date. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman"><B>This press release is not an offer for sale of the securities in the United States or in any other jurisdiction where such offer is
prohibited, and such securities may not be offered or sold in the United States absent registration or an exemption from registration under the United States Securities Act of 1933, as amended. </B></P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">B-1 </P>

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