<SEC-DOCUMENT>0001213900-24-031689.txt : 20240410
<SEC-HEADER>0001213900-24-031689.hdr.sgml : 20240410
<ACCEPTANCE-DATETIME>20240409195207
ACCESSION NUMBER:		0001213900-24-031689
CONFORMED SUBMISSION TYPE:	424B2
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20240410
DATE AS OF CHANGE:		20240409

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			IMMUCELL CORP /DE/
		CENTRAL INDEX KEY:			0000811641
		STANDARD INDUSTRIAL CLASSIFICATION:	IN VITRO & IN VIVO DIAGNOSTIC SUBSTANCES [2835]
		ORGANIZATION NAME:           	03 Life Sciences
		IRS NUMBER:				010382980
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		424B2
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-278438
		FILM NUMBER:		24833959

	BUSINESS ADDRESS:	
		STREET 1:		56 EVERGREEN DR
		CITY:			PORTLAND
		STATE:			ME
		ZIP:			04103
		BUSINESS PHONE:		2078782770

	MAIL ADDRESS:	
		STREET 1:		56 EVERGREEN DRIVE
		CITY:			PORTLAND
		STATE:			ME
		ZIP:			04103
</SEC-HEADER>
<DOCUMENT>
<TYPE>424B2
<SEQUENCE>1
<FILENAME>ea0203569-424b2_immucell.htm
<DESCRIPTION>PROSPECTUS
<TEXT>
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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>Filed
Pursuant to Rule&nbsp;424(b)(2)<BR>
File No.&nbsp;333-278438</B></FONT></P>

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

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>IMMUCELL CORPORATION</B></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>$11,000,000</B></P>

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

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

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">We have entered into an
At The Market Offering Agreement, or the sales agreement, with Craig-Hallum Capital Group LLC (&ldquo;Craig-Hallum&rdquo; or the
&ldquo;Agent&rdquo;) acting as sales agent, on April 9, 2024, relating to the sale of shares of our common stock, par value $0.10 per
share, offered by this prospectus. In accordance with the terms of the sales agreement, under this prospectus, we may offer and sell
shares of our common stock having an aggregate offering price of up to $11,000,000 from time to time through Craig-Hallum.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">Our common stock is listed
on The Nasdaq Capital Market under the symbol &ldquo;ICCC.&rdquo; On March 26, 2024, the last reported sale price of our common stock
on The Nasdaq Capital Market was $5.16 per share.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">Sales of our common stock,
if any, under this prospectus may be made in sales deemed to be &ldquo;at the market equity offerings&rdquo; as defined in Rule 415 promulgated
under the Securities Act of 1933, as amended (the &ldquo;Securities Act&rdquo;). The Agent will act as a sales agent on a best efforts
basis using commercially reasonable efforts consistent with its normal trading and sales practices, on mutually agreed terms between the
Agent and us. There is no arrangement for funds to be received in any escrow, trust or similar arrangement.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">The compensation to the Agent
for sales of common stock sold pursuant to the sales agreement is an amount equal to 3.0% of the gross proceeds from the sales hereunder.
In connection with the sale of the common stock on our behalf, the Agent will be deemed to be an &ldquo;underwriter&rdquo; within the
meaning of the Securities Act and the compensation of the Agent will be deemed to be underwriting commissions or discounts. We have also
agreed to provide indemnification and contribution to the Agent with respect to certain liabilities, including liabilities under the Securities
Act.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">As of the date of this prospectus,
the aggregate market value of our outstanding common stock held by non-affiliates, or our public float, was approximately $34.0 million,
based on 6,233,996 outstanding shares of common stock held by non-affiliates and a per share price of $5.46, the closing price of our
common stock on March 4, 2024, which is the highest closing sale price of our common stock on The Nasdaq Capital Market within the prior
60 days. We have not sold any securities pursuant to General Instruction I.B.6. of Form S-3 during the prior 12 calendar month period
that ends on and includes the date of this prospectus. We are thus currently eligible to offer and sell up to an aggregate of $11,345,873
of our common stock pursuant to General Instruction I.B.6 of Form S-3.</P>

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

<P STYLE="text-align: justify; font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">We are a smaller reporting company under Rule 405
of the Securities Act and, as such, have elected to comply with certain reduced public company reporting requirements for this prospectus,
the documents incorporated by reference herein and future filings.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; text-indent: 0.5in; margin: 0pt 0; text-align: justify"><B>Investing in our common stock involves a high
degree of risk. See &ldquo;Risk Factors&rdquo; beginning on page 3 of this prospectus and similar sections of the documents incorporated
by reference into this prospectus for a discussion of information that you should consider in connection with an investment in our common
stock.</B></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; text-indent: 0.5in; margin: 0pt 0; text-align: justify"><B>Neither the Securities and Exchange Commission
nor any state securities commission has approved or disapproved of these securities or determined if this prospectus is truthful or complete.
Any representation to the contrary is a criminal offense.</B></P>

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

<P STYLE="font: 14pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Craig-Hallum</B></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">The date of this prospectus is April 9, 2024.</P>

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


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

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

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

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: bottom; background-color: #CCEEFF">
    <TD STYLE="width: 90%"><A HREF="#s2_001"><FONT STYLE="font-size: 10pt"><B>CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTS</B></FONT></A></TD>
    <TD STYLE="width: 1%">&nbsp;</TD>
    <TD STYLE="width: 9%; text-align: center">ii</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: white">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: #CCEEFF">
    <TD><A HREF="#s2_002"><FONT STYLE="font-size: 10pt"><B>ABOUT THIS PROSPECTUS</B></FONT></A></TD>
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: center">iii</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: white">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: #CCEEFF">
    <TD><A HREF="#s2_003"><FONT STYLE="font-size: 10pt"><B>ABOUT IMMUCELL CORPORATION</B></FONT></A></TD>
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: center">1</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: white">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: #CCEEFF">
    <TD><A HREF="#s2_004"><FONT STYLE="font-size: 10pt"><B>THE OFFERING</B></FONT></A></TD>
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: center">2</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: white">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: #CCEEFF">
    <TD><A HREF="#s2_005"><FONT STYLE="font-size: 10pt"><B>RISK FACTORS</B></FONT></A></TD>
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: center">3</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: white">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: #CCEEFF">
    <TD><A HREF="#s2_006"><FONT STYLE="font-size: 10pt"><B>USE OF PROCEEDS</B></FONT></A></TD>
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: center">4</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: white">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: #CCEEFF">
    <TD><A HREF="#s2_007"><FONT STYLE="font-size: 10pt"><B>DILUTION</B></FONT></A></TD>
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: center">4</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: white">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: #CCEEFF">
    <TD><A HREF="#s2_008"><FONT STYLE="font-size: 10pt"><B>DESCRIPTION OF COMMON STOCK</B></FONT></A></TD>
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: center">5</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: white">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: #CCEEFF">
    <TD><A HREF="#s2_009"><FONT STYLE="font-size: 10pt"><B>PLAN OF DISTRIBUTION</B></FONT></A></TD>
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: center">7</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: white">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: #CCEEFF">
    <TD><A HREF="#s2_010"><FONT STYLE="font-size: 10pt"><B>LEGAL MATTERS</B></FONT></A></TD>
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: center">8</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: white">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: #CCEEFF">
    <TD><A HREF="#s2_011"><FONT STYLE="font-size: 10pt"><B>EXPERTS</B></FONT></A></TD>
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: center">8</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: white">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: #CCEEFF">
    <TD><A HREF="#s2_012"><FONT STYLE="font-size: 10pt"><B>INTERESTS OF NAMED EXPERTS AND COUNSEL</B></FONT></A></TD>
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: center">9</TD></TR>
  <TR STYLE="vertical-align: bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: #CCEEFF">
    <TD><A HREF="#s2_013"><FONT STYLE="font-size: 10pt"><B>WHERE YOU CAN FIND ADDITIONAL INFORMATION</B></FONT></A></TD>
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: center">9</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: white">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: #CCEEFF">
    <TD><A HREF="#s2_014"><FONT STYLE="font-size: 10pt"><B>INCORPORATION OF INFORMATION BY REFERENCE</B></FONT></A></TD>
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: center">9</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: white">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD></TR>
  </TABLE>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="text-transform: uppercase"><A NAME="s2_001"></A>CAUTIONARY
NOTE REGARDING FORWARD-LOOKING STATEMENTS</FONT></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">Some of the statements in
this prospectus and in any prospectus supplement we may file constitute &ldquo;forward-looking statements&rdquo; within the meaning of
Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934.&nbsp; These statements relate to future
events concerning our business and to our future revenues, operating results and financial condition.&nbsp; In some cases, you can identify
forward-looking statements by terminology such as &ldquo;may,&rdquo; &ldquo;will,&rdquo; &ldquo;could,&rdquo; &ldquo;would,&rdquo; &ldquo;should,&rdquo;
&ldquo;expect,&rdquo; &ldquo;plan,&rdquo; &ldquo;anticipate,&rdquo; &ldquo;aim,&rdquo; &ldquo;intend,&rdquo; &ldquo;believe,&rdquo; &ldquo;estimate,&rdquo;
&ldquo;target, &rdquo; &ldquo;forecast,&rdquo; &ldquo;seeks,&rdquo; &ldquo;predict,&rdquo; &ldquo;project&rdquo;, &ldquo;propose,&rdquo;
&ldquo;potential,&rdquo; or &ldquo;continue,&rdquo; or the negative of those terms or other comparable terminology.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">Any forward-looking statements
contained in this prospectus or any prospectus supplement are only estimates or predictions of future events based on information currently
available to our management and management&rsquo;s current beliefs about the potential outcome of future events.&nbsp; Whether these future
events will occur as management anticipates, whether we will achieve our business objectives, and whether our revenues, operating results
or financial condition will be sustained or improve in future periods are subject to numerous risks.&nbsp; There are a number of important
factors that could cause actual results to differ materially from the results anticipated by these forward-looking statements.&nbsp; These
important factors include those that we discuss under the heading &ldquo;Risk Factors&rdquo; and in other sections of our Annual Report
on Form 10-K for the year ended December 31, 2023 filed with the Securities and Exchange Commission (&ldquo;SEC&rdquo;), as well as in
our other reports filed from time to time with the SEC that are incorporated by reference into this prospectus.&nbsp; You should read
these factors and the other cautionary statements made in this prospectus and in the documents we incorporate by reference into this prospectus
as being applicable to all related forward-looking statements wherever they appear in this prospectus or the documents we incorporate
by reference into this prospectus.&nbsp; If one or more of these factors materialize, or if any underlying assumptions prove incorrect,
our actual results, performance or achievements may vary materially from any future results, performance or achievements expressed or
implied by these forward-looking statements.&nbsp; We undertake no obligation to publicly update any forward-looking statements, whether
as a result of new information, future events or otherwise, except as required by law.</P>

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

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="text-transform: uppercase"><A NAME="s2_002"></A>ABOUT THIS
PROSPECTUS</FONT></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">This document is called a
prospectus and is part of a registration statement that we have filed with the SEC, using a &ldquo;shelf&rdquo; registration process.&nbsp;
This prospectus provides you with a general description of ImmuCell Corporation and the offering of our securities described herein.&nbsp;
Each time we offer securities we may provide a prospectus supplement or information that is incorporated by reference into this prospectus,
containing more specific information about us or the offering.&nbsp; We may also authorize one or more free writing prospectuses to be
provided to you that may contain material information relating to these offerings.&nbsp; This prospectus, together with any applicable
prospectus supplements, any information incorporated by reference and any related free writing prospectuses, includes all material information
relating to these offerings.&nbsp; If there is any inconsistency between the information in this prospectus and a prospectus supplement
or information incorporated by reference having a later date, you should rely on the information in that prospectus supplement or incorporated
information having a later date.&nbsp; We urge you to read carefully this prospectus, any applicable prospectus supplement and any related
free writing prospectus, together with the information incorporated herein by reference as described under the heading &ldquo;Where You
Can Find More Information,&rdquo; before buying any of our securities.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">You should rely only on the
information we have provided or incorporated by reference in this prospectus, any applicable prospectus supplement and any related free
writing prospectus. We have not authorized anyone to provide you with different information.&nbsp; No dealer, salesperson or other person
is authorized to give any information or to represent anything not contained in this prospectus, any applicable prospectus supplement
or any related free writing prospectus.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">Neither the delivery of this
prospectus nor any sale made under it implies that there has been no change in our affairs or that the information in this prospectus
is correct as of any date after the date of this prospectus.&nbsp; You should assume that the information in this prospectus, any applicable
prospectus supplement or any related free writing prospectus is accurate only as of the date on the front of the document and that any
information we have incorporated by reference is accurate only as of the date of the document incorporated by reference, regardless of
the time of delivery of this prospectus, any applicable prospectus supplement or any related free writing prospectus, or any sale of common
stock.</P>

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

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">In this prospectus, unless
the context otherwise requires, references to &ldquo;we&rdquo;, &ldquo;us&rdquo;, &ldquo;our&rdquo; or similar terms, as well as references
to &ldquo;ImmuCell&rdquo; or the &ldquo;Company&rdquo;, refer to ImmuCell Corporation.</P>

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


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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="text-transform: uppercase"><A NAME="s2_003"></A>ABOUT IMMUCELL
CORPORATION</FONT></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">We are a growing animal health
company whose purpose is to create scientifically-proven and practical products that result in a measurable economic impact on animal
health and productivity in the dairy and beef industries. We were originally incorporated in Maine in 1982 and reincorporated in Delaware
in conjunction with our initial public offering of common stock in 1987. After achieving approval from the Center for Veterinary Biologics,
U.S. Department of Agriculture (USDA) to sell <B>First Defense</B><SUP>&reg;</SUP> in 1991, we focused most of our efforts during the
1990&rsquo;s attempting to develop human product applications of the underlying milk protein purification technology. Beginning in 1999,
we re-focused our business strategy on the <B>First Defense</B><SUP>&reg;</SUP> product line and other products that improve the health
and productivity of dairy and beef cattle. We support the dairy and beef industries&rsquo; purpose to produce nutritious, protein-rich
food efficiently while ensuring food quality and safety. Our products help address the growing human health concern about using less antibiotics
in food-producing animals. We aim to capitalize on the growth in sales of the <B>First Defense</B><SUP>&reg;</SUP> product line (a product
that provides significant <B>Immediate Immunity&trade;</B> to newborn dairy and beef livestock) and to revolutionize the mastitis treatment
paradigm with <B>Re-Tain</B><SUP>&reg;</SUP>, a novel product we are developing to treat this most significant cause of economic loss
to the dairy industry.</P>

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

<P STYLE="text-align: justify; font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">During 2000, we began the development of <B>Re-Tain</B><SUP>&reg;</SUP><FONT STYLE="font-family: Times New Roman, Times, Serif">,</FONT>
our purified Nisin treatment for subclinical mastitis in lactating dairy cows. No sales of this product can be made without prior approval
of our New Animal Drug Application (NADA) by the Center for Veterinary Medicine, U.S. Food and Drug Administration (FDA). We have achieved
FDA approval for four out of five of the significant Technical Sections required for product approval, and we have made our third submission
of the fifth Technical Section. We expect a response to this third submission from the FDA by May of 2024. Regulatory achievements to
date have significantly reduced the product development risks in the areas of safety and effectiveness. Our primary product development
focus has now turned to completion of the manufacturing objectives required for FDA approval.</P>

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

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><A NAME="s2_004"></A>THE OFFERING</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt; text-align: justify; text-indent: 0pt"><I>The following summary contains the principal terms of this offering.
The summary is not intended to be complete. You should read the full text and more specific details contained elsewhere in this prospectus.</I></P>

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

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 30%; padding-top: 1.5pt; padding-right: 1pt; padding-left: 1pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Common stock offered by us in this offering</FONT></TD>
    <TD STYLE="width: 70%; padding-top: 1.5pt; padding-right: 1pt; padding-left: 1pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Up to $11,000,000 of our common stock, par value $0.10 per share. &nbsp;</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.5pt; padding-right: 1pt; padding-left: 1pt">&nbsp;</TD>
    <TD STYLE="padding-top: 1.5pt; padding-right: 1pt; padding-left: 1pt">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.5pt; padding-right: 1pt; padding-left: 1pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Common stock to be outstanding after this offering</FONT></TD>
    <TD STYLE="text-align: justify; padding-top: 1.5pt; padding-right: 1pt; padding-left: 1pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Up to 9,854,114 shares of common stock, assuming sales of 2,131,783 shares in this offering at a public offering price of $5.16 per share, which was the closing price of our common stock on the Nasdaq Capital Market (&ldquo;Nasdaq&rdquo;) on March 26, 2024. The actual number of shares issued will vary depending on the sales price under this offering. &nbsp;</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.5pt; padding-right: 1pt; padding-left: 1pt">&nbsp;</TD>
    <TD STYLE="text-align: justify; padding-top: 1.5pt; padding-right: 1pt; padding-left: 1pt">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.5pt; padding-right: 1pt; padding-left: 1pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Manner of offering</FONT></TD>
    <TD STYLE="text-align: justify; padding-top: 1.5pt; padding-right: 1pt; padding-left: 1pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Sales of shares of our common stock, if any, will be made in sales deemed to be &ldquo;at the market offerings&rdquo; as defined in Rule 415 promulgated under the Securities Act., from time to time, through the Agent, as our agent or as principal, pursuant to the sales agreement. See &ldquo;Plan of Distribution.&rdquo; &nbsp;&nbsp;</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.5pt; padding-right: 1pt; padding-left: 1pt">&nbsp;</TD>
    <TD STYLE="text-align: justify; padding-top: 1.5pt; padding-right: 1pt; padding-left: 1pt">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.5pt; padding-right: 1pt; padding-left: 1pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Use of proceeds</FONT></TD>
    <TD STYLE="text-align: justify; padding-top: 1.5pt; padding-right: 1pt; padding-left: 1pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">We intend to use the net proceeds from this offering to repay amounts due on our outstanding indebtedness, future capital expenditures and to address the Company&rsquo;s working capital needs. See &ldquo;Use of Proceeds.&rdquo; &nbsp;</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.5pt; padding-right: 1pt; padding-left: 1pt">&nbsp;</TD>
    <TD STYLE="text-align: justify; padding-top: 1.5pt; padding-right: 1pt; padding-left: 1pt">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.5pt; padding-right: 1pt; padding-left: 1pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Nasdaq Symbol</FONT></TD>
    <TD STYLE="padding-top: 1.5pt; padding-right: 1pt; padding-left: 1pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&ldquo;ICCC.&rdquo; &nbsp;</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.5pt; padding-right: 1pt; padding-left: 1pt">&nbsp;</TD>
    <TD STYLE="padding-top: 1.5pt; padding-right: 1pt; padding-left: 1pt">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 1.5pt; padding-right: 1pt; padding-left: 1pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Risk Factors</FONT></TD>
    <TD STYLE="text-align: justify; padding-top: 1.5pt; padding-right: 1pt; padding-left: 1pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">See &ldquo;Risk Factors&rdquo; beginning on page 3 and in the reports we file with the Securities and Exchange Commission pursuant to the Securities Exchange Act. Of 1934, as amended, incorporated by reference in this prospectus, to read about factors you should consider before buying shares of our common stock. &nbsp;</FONT></TD></TR>
  </TABLE>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">The number of shares of common stock to be outstanding immediately
after this offering is based on 7,750,864 shares of common stock outstanding on March 8, 2024, and excludes shares reserved for issuance
under the 2017 Stock Option and Incentive Plan.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><I>Implications of Being a Smaller Reporting Company</I></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">We are a &ldquo;smaller reporting company&rdquo; as defined in the
Exchange Act. We may take advantage of certain of the scaled disclosures available to smaller reporting companies so long as the market
value of our voting and non-voting common stock held by non-affiliates is less than $250.0 million measured on the last business day of
our second fiscal quarter, or our annual revenue is less than $100.0 million during the most recently completed fiscal year and the market
value of our common stock held by non-affiliates is less than $700.0 million measured on the last business day of our second fiscal quarter.</P>

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

</DIV>

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><A NAME="s2_005"></A>RISK FACTORS</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt; text-align: justify; text-indent: 0pt"><I>An investment in our securities involves a high degree of risk and
uncertainty. In addition to the other information included in this prospectus, you should carefully consider each of the risk factors
set forth in our most recent Annual Report on Form 10-K which is incorporated by reference into this prospectus, and any subsequent Annual
Reports on Form 10-K, Quarterly Reports on Form 10-Q or Current Reports on Form 8-K we file after the date of this prospectus. The risks
described are not the only ones facing our company. Additional risks not presently known to us or that we presently consider immaterial
may also adversely affect our company. If any of the risks described occur, our business, financial condition, results of operations and
prospects could be materially adversely affected. In that case, the trading price of our securities could decline, and you could lose
all or part or your investment. In assessing these risks, you should also refer to the other information included or incorporated by reference
in this prospectus.</I></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>Risks Related to This Offering</B></P>

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

<P STYLE="text-align: justify; font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B><I>You will experience immediate dilution in the book value per
share of the common stock you purchase in this offering.</I></B></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">Because the price per share of our common stock being offered is substantially
higher than the book value per share of our common stock, you will suffer substantial dilution in the net tangible book value of the common
stock you purchase in this offering. Based on the assumed public offering price of $5.16 per share (the closing sale price of our common
stock on Nasdaq on March 26, 2024) and assuming that we sell all $11,000,000 of shares of common stock under this prospectus, and after
deducting commissions and estimated aggregate offering expenses payable by us, if you purchase shares of common stock in this offering,
you will experience immediate and substantial dilution of $1.58 per share in the net tangible book value of the common stock. See the
section titled &ldquo;Dilution&rdquo; below for a more detailed discussion of the dilution you will incur if you purchase common stock
in this offering.</P>

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

<P STYLE="text-align: justify; font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B><I>Our management team may invest or spend the proceeds of this
offering in ways with which you may not agree or in ways which may not yield a significant return.</I></B></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">Our management will have broad discretion over the use of proceeds
from this offering, including for any of the purposes described in the section entitled &ldquo;Use of Proceeds,&rdquo; and you will not
have the opportunity, as part of your investment decision, to assess whether the proceeds are being used appropriately. However, we have
not determined the specific allocation of any net proceeds among these potential uses, and the ultimate use of the net proceeds may vary
from the currently intended uses. The net proceeds may be used for corporate purposes that do not increase our operating results or enhance
the value of our common stock.</P>

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

<P STYLE="text-align: justify; font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>It is not possible to predict the aggregate proceeds resulting from
sales made under the sales agreement.</B></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">Subject to certain limitations in the sales agreement and compliance
with applicable law, we have the discretion to deliver a placement notice to the Agent at any time throughout the term of the sales agreement.
The number of shares that are sold through the Agent after delivering a placement notice will fluctuate based on a number of factors,
including the market price of our common stock during the sales period, the limits we set with the Agent in any applicable placement notice,
and the demand for our common stock during the sales period. Because the price per share of each share sold will fluctuate during the
sales period, it is not currently possible to predict the aggregate proceeds to be raised in connection with those sales.</P>

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

<P STYLE="text-align: justify; font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>The common stock offered hereby will be sold in &ldquo;at the market
offerings,&rdquo; and investors who buy shares at different times will likely pay different prices.</B></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">Investors who purchase shares in this offering at different times will
likely pay different prices, and so may experience different levels of dilution and different outcomes in their investment results. We
will have discretion, subject to market demand, to vary the timing, prices, and number of shares sold in this offering. In addition, subject
to the final determination by our board of directors, there is no minimum or maximum sales price for shares to be sold in this offering.
Investors may experience a decline in the value of the shares they purchase in this offering as a result of sales made at prices lower
than the prices they paid.</P>

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

<P STYLE="text-align: justify; font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B><I>Future sales of substantial amounts of our common stock, or the
possibility that such sales could occur, could adversely affect the market price of our common stock.</I></B></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">We cannot predict the effect, if any, that future issuances or sales
of our securities, including the availability of our securities for future issuance or sale, will have on the market price of our common
stock. Issuances or sales of substantial amounts of our securities, or the perception that such issuances or sales might occur, could
negatively impact the market price of our common stock and the terms upon which we may obtain additional equity financing in the future.</P>

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

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><A NAME="s2_006"></A>USE OF PROCEEDS</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">We may issue and sell shares of our common stock having aggregate sales
proceeds of up to $11,000,000 from time to time. Because there is no minimum offering amount required as a condition to close this offering,
the actual total public offering amount, commissions and proceeds to us, if any, are not determinable at this time. There can be no assurance
that we will sell any shares under or fully utilize the sales agreement as a source of financing.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">Except as otherwise set forth in a prospectus supplement or in other
offering materials, we intend to use the net proceeds from the sale of our securities to repay outstanding indebtedness, for future capital
expenditures, working capital and for general corporate purposes.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">The amounts and timing of our actual repayments and expenditures will
depend on numerous factors, including the factors described under &ldquo;Risk Factors&rdquo; in this prospectus, any accompanying prospectus
supplement and in the documents incorporated by reference herein and therein, as well as the amount of cash used in our operations. We
may find it necessary or advisable to use the net proceeds for other purposes.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><A NAME="s2_007"></A>DILUTION</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">The difference between the
public offering price per share of our common stock in this offering and the as adjusted net tangible book value per share after this
offering constitutes immediate dilution to investors in this offering. Net tangible book value per share is determined by dividing our
net tangible book value, which is our total tangible assets less total liabilities, by the number of outstanding shares of common stock.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">As of December 31, 2023, our
net tangible book value was approximately $24.9 million, or approximately $3.21 per share.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">On an as adjusted basis as
of March 26, 2024, our net tangible book value would have been approximately $35.4 million, or approximately $3.59 per share, after giving
effect to the sale of 2,131,783 shares of common stock offered in this prospectus at the assumed public offering price of $5.16 (the closing
sale price of our common stock on Nasdaq on March 26, 2024) and the deduction of the Agent&rsquo;s commissions and estimated offering expenses
payable by us. The difference between the historical and as adjusted net tangible book value represents an immediate dilution of approximately
30.6% per share, or $1.58, to new investors.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">The following table illustrates
the dilution to the new investors on a per-share basis:</P>

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

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; width: 100%; font: 10pt Times New Roman, Times, Serif">
  <TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="width: 88%; text-align: left; padding-bottom: 1.5pt">Public offering price</TD><TD STYLE="width: 1%; padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="width: 1%; border-bottom: Black 1.5pt solid; text-align: left">$</TD><TD STYLE="width: 9%; border-bottom: Black 1.5pt solid; text-align: right">5.16</TD><TD STYLE="width: 1%; padding-bottom: 1.5pt; text-align: left">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left">Actual net tangible book value per share as of December 31, 2023</TD><TD>&nbsp;</TD>
    <TD STYLE="text-align: left">$</TD><TD STYLE="text-align: right">3.21</TD><TD STYLE="text-align: left">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left; padding-bottom: 1.5pt">Increase in net tangible book value per share attributable to new investors</TD><TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="text-align: center">&nbsp;</TD><TD STYLE="text-align: right">0.38</TD><TD STYLE="padding-bottom: 1.5pt; text-align: left">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: White">
    <TD STYLE="text-align: left; padding-bottom: 4pt">As adjusted net tangible book value per share after this offering</TD><TD STYLE="padding-bottom: 4pt">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 4pt double; text-align: left">$</TD><TD STYLE="border-bottom: Black 4pt double; text-align: right">3.58</TD><TD STYLE="padding-bottom: 4pt; text-align: left">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: bottom; background-color: rgb(204,238,255)">
    <TD STYLE="text-align: left; padding-bottom: 4pt">Dilution to new investors</TD><TD STYLE="padding-bottom: 4pt">&nbsp;</TD>
    <TD STYLE="border-bottom: Black 4pt double; text-align: left">$</TD><TD STYLE="border-bottom: Black 4pt double; text-align: right">1.58</TD><TD STYLE="padding-bottom: 4pt; text-align: left">&nbsp;</TD></TR>
  </TABLE>


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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">The table above assumes for
illustrative purposes that an aggregate of 2,131,783 shares of our common stock are sold during the term of the sales agreement at a price
of $5.16 per share (the closing sale price of our common stock on Nasdaq on March 26, 2024) for aggregate gross proceeds of approximately
$11 million. The shares sold in this offering, if any, will be sold from time to time at various prices.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">The table and discussion above
are based on 7,750,864 shares of common stock outstanding on December 31, 2023, and excludes, as of that date, 618,500 shares reserved
for issuance under the 2017 Stock Option and Incentive Plan.</P>

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

<P STYLE="text-align: justify; font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">To the extent that new options are issued under
the 2017 Stock Option and Incentive Plan, or we issue additional shares of common stock in the future, there may be further dilution to
investors participating in this offering. In addition, we may choose to raise additional capital because of market conditions or strategic
considerations, even if we believe that we have sufficient funds for our current or future operating plans. If we raise additional capital
through the sale of equity or securities exercisable for or convertible into equity, the issuance of these securities could result in
further dilution to our stockholders.</P>

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

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="text-transform: uppercase"><A NAME="s2_008"></A>DESCRIPTION
OF COMMON STOCK</FONT>&nbsp;</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">We may offer, from time to
time, shares of our common stock under this prospectus at prices and on terms to be determined by market conditions at the time of offering.&nbsp;
This prospectus provides you with a general description of our common stock.&nbsp; Each time we offer common stock, we will provide a
prospectus supplement that will describe the specific amounts, and prices of the common stock. The prospectus supplement and any related
free writing prospectus also may supplement or, as applicable, add, update or change information contained in this prospectus or in documents
we have incorporated by reference. The terms of any particular offering, the initial offering price and the net proceeds to us will be
contained in the prospectus supplement, information incorporated by reference or free writing prospectus relating to such offering.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">The description below of our
common stock and provisions of our certificate of incorporation and bylaws are summaries and are qualified by reference to the certificate
of incorporation and the bylaws.&nbsp; These documents are filed as exhibits to the registration statement of which this prospectus is
a part.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">Our authorized capital stock
consists of 15,000,000 shares of common stock. As of March 8, 2024 there were 7,750,864 shares of common stock outstanding.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><B>Common Stock</B></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">The holders of common stock
are entitled to receive ratable dividends, if any, as may be declared from time to time by the Board of Directors out of funds legally
available for that purpose. In the event of our liquidation, dissolution or winding up, whether voluntary or involuntary, the holders
of common stock are entitled to share ratably in all assets remaining after payment of or provision for liabilities. The common stock
has no preemptive or conversion rights or other subscription rights. There are no redemption or sinking fund provisions applicable to
the common stock. All outstanding shares of common stock are fully paid and nonassessable, and the shares of common stock to be issued
upon the closing of this offering will be fully paid and nonassessable.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">The holders of common stock
are entitled to one vote per share on all matters to be voted upon by the shareholders.&nbsp;There is no cumulative voting.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>Effect of Certain Provisions of our Certificate of Incorporation,
Bylaws and Common Stock Rights Plan</B></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">Provisions of our certificate
of incorporation, our bylaws, our Common Stock Rights Plan or Delaware law may discourage, delay or prevent a merger, acquisition or other
change in control that stockholders may consider favorable, including transactions in which stockholders might otherwise receive a premium
for their shares of our common stock. These provisions may also prevent or frustrate attempts by our stockholders to replace or remove
our management. These provisions include:</P>

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

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%">
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 0.5in">&nbsp;</TD>
    <TD STYLE="width: 0.25in"><FONT STYLE="font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt">limitations on the removal of directors; advance notice requirements for stockholder proposals and nominations;</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: justify">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt">the ability of our Board of Directors to alter or repeal our bylaws;</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: justify">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt">the ability of our Board of Directors to refuse to redeem rights issued under our Common Stock Rights Plan or otherwise to limit or suspend its operation that would work to dilute the stock ownership of a potential hostile acquirer, likely preventing acquisitions that have not been approved by our Board of Directors; and</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD STYLE="text-align: justify">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt">Section 203 of the Delaware General Corporation Law, which prohibits a publicly-held Delaware corporation from engaging in a business combination with an interested stockholder (generally defined as a person which together with its affiliates owns, or within the last three years has owned, 15% of our voting stock, for a period of three years after the date of the transaction in which the person became an interested stockholder) unless the business combination is approved in a prescribed manner.</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">The existence of the foregoing
provisions and anti-takeover measures could depress the trading price of our common stock or limit the price that investors might be willing
to pay in the future for shares of our common stock. They could also deter potential acquirers of our Company, thereby reducing the likelihood
of obtaining a premium for our common stock in an acquisition.</P>

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

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">These provisions, summarized
below, are expected to discourage coercive takeover practices and inadequate takeover bids and to promote stability in our management.
These provisions are also designed to encourage persons seeking to acquire control of us to first negotiate with our Board of Directors.</P>

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

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%">
  <TR>
    <TD STYLE="width: 0.5in">&nbsp;</TD>
    <TD STYLE="vertical-align: top; width: 0.25in"><FONT STYLE="font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><U>Shareholder Meetings</U>.&nbsp; Our bylaws provide that a special meeting of shareholders may be called only by the President or by the Board of Directors or by shareholders holding a majority of the outstanding shares of our common stock.</FONT></TD></TR>
  <TR>
    <TD>&nbsp;</TD>
    <TD STYLE="vertical-align: top">&nbsp;</TD>
    <TD STYLE="text-align: justify">&nbsp;</TD></TR>
  <TR>
    <TD>&nbsp;</TD>
    <TD STYLE="vertical-align: top"><FONT STYLE="font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><U>Requirements for Advance Notification of Shareholder Nominations and Proposals</U>.&nbsp; Our bylaws establish advance notice procedures with respect to shareholder proposals and the nomination of candidates for election as directors, other than nominations made by or at the direction of our Board of Directors or a committee of the Board of Directors.</FONT></TD></TR>
  <TR>
    <TD>&nbsp;</TD>
    <TD STYLE="vertical-align: top">&nbsp;</TD>
    <TD STYLE="text-align: justify">&nbsp;</TD></TR>
  <TR>
    <TD>&nbsp;</TD>
    <TD STYLE="vertical-align: top"><FONT STYLE="font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><U>Board of Directors Vacancies</U>.&nbsp; Under our bylaws, any vacancy on the Board of Directors, including a vacancy resulting from an enlargement of the Board of Directors, may only be filled by vote of a majority of the remaining directors.&nbsp; Any director may be removed by vote of the holders of a majority of the outstanding shares of our common stock.&nbsp;&nbsp;The limitations on the removal of directors and filling of vacancies would have the effect of making it more difficult for a third party to acquire control of us, or of discouraging a third party from acquiring control of us.</FONT></TD></TR>
  <TR>
    <TD>&nbsp;</TD>
    <TD STYLE="vertical-align: top">&nbsp;</TD>
    <TD STYLE="text-align: justify">&nbsp;</TD></TR>
  <TR>
    <TD>&nbsp;</TD>
    <TD STYLE="vertical-align: top"><FONT STYLE="font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><U>Board of Directors Size</U>.&nbsp; Within the range specified by our bylaws, our Board of Directors determines the size of our Board of Directors and may create new directorships and elect new directors, which may enable an incumbent Board of Directors to maintain control by adding directors.</FONT></TD></TR>
  <TR>
    <TD>&nbsp;</TD>
    <TD STYLE="vertical-align: top">&nbsp;</TD>
    <TD STYLE="text-align: justify">&nbsp;</TD></TR>
  <TR>
    <TD>&nbsp;</TD>
    <TD STYLE="vertical-align: top"><FONT STYLE="font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt"><U>Indemnification</U>. &nbsp;Our certificate of incorporation and our bylaws, as amended, provide that we will indemnify officers and directors against losses as they incur in investigations and legal proceedings resulting from their services to us, which may include service in connection with takeover defense measures.</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.25in">&nbsp;&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">In September 1995, our Board
of Directors adopted a Common Stock Rights Plan and declared a dividend of one common share purchase right (a &ldquo;Right&rdquo;) for
each of the then outstanding shares of the common stock of the Company. Each Right entitles the registered holder to purchase from the
Company one share of common stock at an initial purchase price of $70.00 per share, subject to adjustment. The description and terms of
the Rights are set forth in a Rights Agreement between the Company and Equiniti Trust Company, LLC, as Rights Agent (as amended from time
to time, the &ldquo;Rights Agreement&rdquo;).</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">The Rights (as amended) become
exercisable and transferable apart from the common stock upon the earlier of i) 10 days following a public announcement that a person
or group (Acquiring Person) has, without the prior consent of the Continuing Directors (as such term is defined in the Rights Agreement),
acquired beneficial ownership of 20% or more of the outstanding common stock or ii) 10 days following commencement of a tender offer or
exchange offer the consummation of which would result in ownership by a person or group of 20% or more of the outstanding common stock
(the earlier of such dates being called the Distribution Date).</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">Upon the Distribution Date,
the holder of each Right not owned by the Acquiring Person would be entitled to purchase common stock at a discount to the initial purchase
price of $70.00 per share, effectively equal to one half of the market price of a share of common stock on the date the Acquiring Person
becomes an Acquiring Person. If, after the Distribution Date, the Company should consolidate or merge with any other entity and the Company
were not the surviving company, or, if the Company were the surviving company, all or part of the Company&rsquo;s common stock were changed
or exchanged into the securities of any other entity, or if more than 50% of the Company&rsquo;s assets or earning power were sold, each
Right would entitle its holder to purchase, at the Rights&rsquo; then-current purchase price, a number of shares of the acquiring company&rsquo;s
common stock having a market value at that time equal to twice the Right&rsquo;s exercise price.</P>

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

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">At any time after a person
or group becomes an Acquiring Person and prior to the acquisition by such person or group of 50% or more of the outstanding common stock,
the Board of Directors of the Company may exchange the Rights (other than Rights owned by such person or group which have become void),
in whole or in part, at an exchange ratio of one share of common stock per Right (subject to adjustment). At any time prior to 14 days
following the date that any person or group becomes an Acquiring Person (subject to extension by the Board of Directors), the Board of
Directors of the Company may redeem the then outstanding Rights in whole, but not in part, at a price of $0.005 per Right, subject to
adjustment.</P>

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

<P STYLE="text-align: justify; font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">During the third quarter of 2011, our Board of
Directors voted to authorize an amendment to the Rights Plan to increase the ownership threshold for determining &ldquo;Acquiring Person&rdquo;
status to&nbsp;20%. During the second quarter of 2015, our Board of Directors also voted to authorize an amendment to remove a provision
that prevented a new group of directors elected following the emergence of an Acquiring Person (an owner of more than&nbsp;20% of our
stock) from controlling the Rights Plan by maintaining exclusive authority over the Rights Plan with pre-existing directors. We did this
because such provisions have come to be viewed with disfavor by Delaware courts. Each time that we made such amendments we entered into
amendments to the Rights Agreement with the Rights Agent reflecting such extensions, threshold increases or provision changes. No other
changes have been made to the terms of the Rights or the Rights Plan, other than extensions to the Final Expiration Date (as such term
is defined in the Rights Agreement).&nbsp;</P>

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

<P STYLE="text-align: justify; font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">Our Board of Directors believes that there is some
risk that the potential value of the mastitis product development initiative and the potential value of our broadened <B>First Defense<SUP>&reg;</SUP></B>
product line offerings are not fairly reflected in the market price of our common stock, as it fluctuates from time to time, and that
opportunistic buyers could take advantage of that disparity to the detriment of our stockholders. If this were to happen and result in
a potential threat through an unsolicited acquisition effort or otherwise, our Board of Directors feels that the Common Stock Rights Plan
could enhance stockholder value by providing management with negotiating leverage.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>Listing</B></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">Our common stock is listed on the NASDAQ Capital
Market under the symbol &ldquo;ICCC&rdquo;.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>Transfer Agent and Registrar</B></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">The transfer agent and registrar
for our common stock is Equiniti Trust Company, LLC.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="text-transform: uppercase"><A NAME="s2_009"></A>PLAN OF
DISTRIBUTION</FONT></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">We have entered into the sales
agreement with Craig-Hallum Capital Group LLC under which we may offer and sell, from time to time through Craig-Hallum, acting as agent
or principal, shares of our common stock having an aggregate offering price of up to $11,000,000. Sales of our common stock, if any, under
this prospectus may be made in transactions that are deemed to be &ldquo;at the market offerings&rdquo; as defined in Rule 415 under the
Securities Act.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">Each time we wish to issue
and sell our common stock under the sales agreement, we will notify Craig-Hallum of the number or dollar value of shares to be issued,
the dates on which such sales are anticipated to be made, any limitation on the number of shares that may be sold in one day, any minimum
price below which sales may not be made and other sales parameters as we deem appropriate. Once we have so instructed Craig-Hallum, unless
Craig-Hallum declines to accept the terms of the notice, Craig-Hallum has agreed to use its commercially reasonable efforts consistent
with its normal trading and sales practices to sell such shares up to the amount specified on such terms. The obligations of Craig-Hallum
under the sales agreement to sell our common stock are subject to a number of conditions that we must meet. We may instruct Craig-Hallum
not to sell our common stock if the sales cannot be effected at or above the price designated by us in any such instruction. Craig-Hallum
or we may suspend the offering of common stock upon proper notice to the other party and subject to other conditions. Craig-Hallum and
we each have the right, by giving written notice as specified in the sales agreement, to terminate the sales agreement in each party&rsquo;s
sole discretion at any time.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">Under the terms of the sales
agreement, we may also sell our common stock to Craig-Hallum, as principal for its own account, at a price negotiated at the time of sale,
provided that no sales may be made in a privately negotiated transaction without our prior consent.</P>

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

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">We will pay Craig-Hallum commissions
for its services in acting as agent in the sale of common stock at a commission rate of 3.0% of the gross proceeds from the sales hereunder.
Because there is no minimum offering amount required as a condition to close this offering, the actual total public offering amount, commissions
and proceeds to us, if any, are not determinable at this time. We have also agreed to reimburse Craig-Hallum for certain specified fees
and documented expenses, including the fees and documented expenses of its legal counsel in an amount not to exceed $50,000, plus an additional
amount not to exceed $5,000 per quarter thereafter in connection with updates at the time of Representation Dates. We estimate that the
total expenses for the offering, excluding compensation and reimbursements payable to Craig-Hallum under the sales agreement, will be
$150,000 if we sold the entire $11,000,000 of shares of our common stock.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">Settlement for sales of common
stock will occur on the second business day following the date on which any sales are made, or any such other settlement cycle as may
be in effect pursuant to Rule 15c6-1 under the Exchange Act, or on some other date that is agreed upon by us and Craig-Hallum in connection
with a particular transaction, in return for payment of the net proceeds to us. Sales of our common stock as contemplated in this prospectus
will be settled through the facilities of The Depository Trust Company or by such other means as we and Craig-Hallum may agree upon. There
is no arrangement for funds to be received in an escrow, trust or similar arrangement.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">In connection with the sale
of the shares of common stock on our behalf, Craig-Hallum will be deemed to be an underwriter within the meaning of the Securities Act,
and Craig-Hallum&rsquo;s compensation will be deemed to be underwriting commissions or discounts. We have agreed to provide indemnification
and contribution to Craig-Hallum against certain liabilities, including civil liabilities under the Securities Act. To the extent required
by Regulation M promulgated under the Exchange Act, Craig-Hallum will not engage in any transactions that stabilize our common stock while
the offering pursuant to this prospectus is ongoing.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">The offering of shares of
our common stock pursuant to the sales agreement will terminate upon the earlier of (1) the issuance and sale of all shares of our common
stock subject to the sales agreement; and (2) the termination of the sales agreement as permitted therein.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">Craig-Hallum and its affiliates
may in the future engage in investment banking and other commercial dealings in the ordinary course of business with us or our affiliates.
They have received, or may in the future receive, customary fees and commissions for these transactions.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">Our common stock is listed
on the Nasdaq Capital Market under the symbol &ldquo;ICCC.&rdquo; The transfer agent and registrar for our common stock is Equiniti Trust
Company, LLC.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="text-transform: uppercase"><A NAME="s2_010"></A>LEGAL MATTERS</FONT></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">Loeb &amp; Loeb LLP, New York,
New York will pass upon legal matters in connection with the validity of the securities offered hereby for us. Craig-Hallum is being represented
by Ellenoff, Grossman &amp; Schole LLP.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="text-transform: uppercase"><A NAME="s2_011"></A>EXPERTS</FONT></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">The financial statements of
ImmuCell Corporation as of and for the years ended December 31, 2023 and 2022, incorporated in this Prospectus and Registration Statement
by reference from the ImmuCell Corporation Annual Report on Form 10-K for the year ended December 31, 2023 have been audited WIPFLI LLP,
an independent registered public accounting firm, as stated in their report, incorporated herein by reference, and have been incorporated
in this Prospectus and Registration Statement in reliance upon such report and upon the authority of such firm as experts in accounting
and auditing.</P>

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

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="text-transform: uppercase"><A NAME="s2_012"></A>INTERESTS
OF NAMED EXPERTS AND COUNSEL</FONT></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">No expert or counsel named
in this prospectus as having prepared or certified any part of this prospectus or having given an opinion upon the validity of the securities
being registered or upon other legal matters in connection with the registration or offering of the securities was employed on a contingency
basis, or had, or is to receive, in connection with the offering, a substantial interest, direct or indirect, in the registrant. Nor was
any such person connected with the registrant as a promoter, managing or principal underwriter, voting trustee, director, officer, or
employee.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="text-transform: uppercase"><A NAME="s2_013"></A>WHERE YOU
CAN FIND ADDITIONAL INFORMATION</FONT></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">We have filed with the SEC
a registration statement on Form S-3 under the Securities Act of 1933, as amended (&ldquo;Securities Act&rdquo;), with respect to the
securities covered by this prospectus.&nbsp; This prospectus, which is a part of the registration statement, does not contain all of the
information set forth in the registration statement or the exhibits and schedules filed therewith.&nbsp; For further information with
respect to us and the securities covered by this prospectus, please see the registration statement and the exhibits filed with the registration
statement. The SEC maintains a website that contains reports, proxy and information statements and other information regarding registrants
that file electronically with the SEC, including such registration statement.&nbsp; The address of the website is http://www.sec.gov.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">We are subject to the information
and periodic reporting requirements of the Securities Exchange Act of 1934, as amended (the &ldquo;Exchange Act&rdquo;) and, in accordance
therewith, we file periodic reports, proxy statements and other information with the SEC.&nbsp; Such periodic reports, proxy statements
and other information are available on the website of the SEC referred to above.&nbsp; We maintain a website at www.immucell.com.&nbsp;
You may access our Annual Report on Form 10-K, Quarterly Reports on Form 10-Q, Current Reports on Form 8-K and amendments to those reports
filed pursuant to Sections 13(a) or 15(d) of the Exchange Act with the SEC free of charge at our website as soon as reasonably practicable
after such material is electronically filed with, or furnished to, the SEC. Our website and the information contained on that site,
or connected to that site, are not incorporated into and are not a part of this prospectus.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="text-transform: uppercase"><A NAME="s2_014"></A>INCORPORATION
OF INFORMATION BY REFERENCE</FONT></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">The SEC allows us to &ldquo;incorporate
by reference&rdquo; the information we file with it, which means that we can disclose important information to you by referring you to
those documents. The information we incorporate by reference is an important part of this prospectus, and certain information that
we will later file with the SEC will automatically update and supersede this information.&nbsp; We incorporate by reference the documents
listed below, as well as any future filings made with the SEC under Sections 13(a), 13(c), 14 or 15(d) of the Exchange Act from the date
of the initial registration statement and prior to the effectiveness of this registration statement, and any filings made after the date
of this prospectus until we sell all of the securities under this prospectus, except that we do not incorporate any document or portion
of a document that was furnished and deemed by the rules of the SEC not to have been filed:</P>

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

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%">
  <TR>
    <TD STYLE="width: 0.5in">&nbsp;</TD>
    <TD STYLE="vertical-align: top; width: 0.25in"><FONT STYLE="font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt">Our Annual Report on <A HREF="https://www.sec.gov/ix?doc=/Archives/edgar/data/811641/000121390024028718/ea0202277-10k_immu.htm">Form 10-K</A> for the fiscal year ended December 31, 2023, filed with the SEC on April 1, 2024;</FONT></TD></TR>
  <TR>
    <TD>&nbsp;</TD>
    <TD STYLE="vertical-align: top">&nbsp;</TD>
    <TD STYLE="text-align: justify">&nbsp;</TD></TR>
  <TR>
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: justify"><FONT STYLE="font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt">Our Current Reports on Form 8-K filed with the SEC on <A HREF="https://www.sec.gov/ix?doc=/Archives/edgar/data/811641/000121390024017522/ea0200796-8k_immucell.htm">February
    27, 2024</A>, <A HREF="http://www.sec.gov/Archives/edgar/data/811641/000121390024020389/ea0201306-8k_immucell.htm">March 6,
    2024</A> and April 9, 2024
    (<A HREF="http://www.sec.gov/Archives/edgar/data/811641/000121390024031647/ea0203573-8k_immucell.htm">Second Filing</A>);</FONT></TD></TR>
  <TR>
    <TD STYLE="text-align: justify">&nbsp;</TD>
    <TD STYLE="vertical-align: top; text-align: justify">&nbsp;</TD>
    <TD STYLE="text-align: justify">&nbsp;</TD></TR>
  <TR>
    <TD>&nbsp;</TD>
    <TD STYLE="vertical-align: top"><FONT STYLE="font-size: 10pt">&#9679;</FONT></TD>
    <TD>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">Our Form 8-A filed with the SEC on March 18, 1987
    with respect to our common stock; and</P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P></TD></TR>
  <TR>
    <TD>&nbsp;</TD>
    <TD STYLE="vertical-align: top"><FONT STYLE="font-size: 10pt">&#9679;</FONT></TD>
    <TD STYLE="text-align: justify"><FONT STYLE="font-size: 10pt">Our  <A HREF="https://www.sec.gov/Archives/edgar/data/811641/0000906602-95-000054.txt">Form 8-A</A> filed with the SEC on September 13, 1995, as amended by <A HREF="https://www.sec.gov/Archives/edgar/data/811641/000119312508144978/d8a12ba.htm">Form 8-A/A</A> filed with the SEC on July 1, 2008, with respect to our common stock purchase rights.</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">Additionally, all reports
and other documents subsequently filed by us pursuant to Sections 13(a), 13(c), 14 and 15(d) of the Exchange Act after (i) the date of
the initial registration statement and prior to effectiveness of the registration statement; and (ii) the date of this prospectus and
prior to the termination or completion of this offering, shall be deemed to be incorporated by reference in this prospectus and to be
part hereof from the date of filing of such reports and other documents.&nbsp; Any information that we subsequently file with the SEC
that is incorporated by reference as described above will automatically update and supersede any previous information that is part of
this prospectus.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">We hereby undertake to provide
without charge to each person, including any beneficial owner, to whom a copy of this prospectus is delivered, upon written or oral request
of any such person, a copy of any and all of the information that has been or may be incorporated by reference in this prospectus, other
than exhibits to such documents.&nbsp; Requests for such copies should be directed to our Corporate Secretary at 56 Evergreen Drive, Portland,
ME 04103.&nbsp; Our telephone number is (207) 878-2770.</P>

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


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