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<SEC-DOCUMENT>0001010541-10-000023.txt : 20100618
<SEC-HEADER>0001010541-10-000023.hdr.sgml : 20100618
<ACCEPTANCE-DATETIME>20100618160549
ACCESSION NUMBER:		0001010541-10-000023
CONFORMED SUBMISSION TYPE:	10-K/A
PUBLIC DOCUMENT COUNT:		3
CONFORMED PERIOD OF REPORT:	20091231
FILED AS OF DATE:		20100618
DATE AS OF CHANGE:		20100618

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			HUDSON TECHNOLOGIES INC /NY
		CENTRAL INDEX KEY:			0000925528
		STANDARD INDUSTRIAL CLASSIFICATION:	WHOLESALE-MACHINERY, EQUIPMENT & SUPPLIES [5080]
		IRS NUMBER:				133641539
		STATE OF INCORPORATION:			NY
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		10-K/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-13412
		FILM NUMBER:		10905942

	BUSINESS ADDRESS:	
		STREET 1:		PO BOX 1541
		STREET 2:		ONE BLUE HILL PLAZA, 14TH FLOOR
		CITY:			PEARL RIVER
		STATE:			NY
		ZIP:			10965
		BUSINESS PHONE:		8457356000

	MAIL ADDRESS:	
		STREET 1:		PO BOX 1541
		STREET 2:		ONE BLUE HILL PLAZA, 14TH FLOOR
		CITY:			PEARL RIVER
		STATE:			NY
		ZIP:			10965

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	REFRIGERANT RECLAMATION INDUSTRIES INC
		DATE OF NAME CHANGE:	19940617
</SEC-HEADER>
<DOCUMENT>
<TYPE>10-K/A
<SEQUENCE>1
<FILENAME>k10a_2009.htm
<DESCRIPTION>HUDSON TECHNOLOGIES 10-K/A
<TEXT>
<HTML>
<HEAD>

<TITLE>Hudson Technologies 10-K/A</TITLE>
</HEAD>
<BODY LINK="#0000ff" VLINK="#800080">

<B><FONT SIZE=2><P ALIGN="CENTER">UNITED STATES</P>
</FONT><FONT SIZE=1><P ALIGN="CENTER">Securities and Exchange Commission</P>
</FONT><FONT SIZE=2><P ALIGN="CENTER">Washington, D.C. 20549</P>
</FONT><FONT SIZE=1><P ALIGN="CENTER"></P>
</FONT><P ALIGN="CENTER">Form 10-K/A</P>
<P ALIGN="CENTER">Amendment No. 1</P>
</B><FONT SIZE=1><P ALIGN="CENTER"></P>
<P ALIGN="CENTER">[X] ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934</P>
<P ALIGN="CENTER"></P>
</FONT><B><FONT SIZE=2><P ALIGN="CENTER">For the fiscal year ended December 31, 2009</P>
</B></FONT><FONT SIZE=1><P ALIGN="CENTER"></P>
<P ALIGN="CENTER">OR</P>
<P ALIGN="CENTER"></P>
<P ALIGN="CENTER">[  ] TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934</P>
<P ALIGN="CENTER"></P>
</FONT><FONT SIZE=2><P ALIGN="CENTER">For the transition period from ____________ to ____________</P>
</FONT><FONT SIZE=1><P ALIGN="CENTER"></P>
</FONT><B><FONT SIZE=2><P ALIGN="CENTER">Commission file number 1-13412</P>
<P ALIGN="CENTER">_____________________</P>
</FONT><FONT SIZE=1><P ALIGN="CENTER"></P>
</FONT><FONT SIZE=4><P ALIGN="CENTER">Hudson Technologies, Inc.</P>
</FONT><FONT SIZE=2><P ALIGN="CENTER">_____________________</P>
</B></FONT><FONT SIZE=3><P ALIGN="CENTER"> </FONT><FONT SIZE=1>(Exact name of registrant as specified in its charter)</P></FONT>
<P ALIGN="CENTER"><CENTER><TABLE CELLSPACING=0 BORDER=0 WIDTH=535 DIR="LTR">
<TR><TD WIDTH="62%" VALIGN="TOP">
<B><FONT SIZE=2><P ALIGN="CENTER">New York</B></FONT></TD>
<TD WIDTH="38%" VALIGN="TOP">
<B><FONT SIZE=2><P ALIGN="CENTER">13-3641539</B></FONT></TD>
</TR>
<TR><TD WIDTH="62%" VALIGN="TOP" HEIGHT=7>
<FONT SIZE=2><P ALIGN="CENTER">(State or Other Jurisdiction of Incorporation or Organization)</FONT></TD>
<TD WIDTH="38%" VALIGN="TOP" HEIGHT=7>
<FONT SIZE=2><P ALIGN="CENTER">(I.R.S. Employer Identification No.)</FONT></TD>
</TR>
<TR><TD WIDTH="62%" VALIGN="TOP">
<B><FONT SIZE=1><P ALIGN="CENTER">P.O. Box 1541</B></FONT></TD>
<TD WIDTH="38%" VALIGN="TOP">&nbsp;</TD>
</TR>
<TR><TD WIDTH="62%" VALIGN="TOP">
<B><FONT SIZE=1><P ALIGN="CENTER">One Blue Hill Plaza</B></FONT></TD>
<TD WIDTH="38%" VALIGN="TOP">
<FONT SIZE=1><P ALIGN="JUSTIFY">&nbsp;</FONT></TD>
</TR>
<TR><TD WIDTH="62%" VALIGN="TOP">
<B><FONT SIZE=1><P ALIGN="CENTER">Pearl River, New York</B> </FONT></TD>
<TD WIDTH="38%" VALIGN="TOP">
<B><FONT SIZE=1><P ALIGN="CENTER">10965</B></FONT></TD>
</TR>
<TR><TD WIDTH="62%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="CENTER">(Address of Principal Executive Offices)</FONT></TD>
<TD WIDTH="38%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="CENTER">(Zip Code)</FONT></TD>
</TR>
<TR><TD WIDTH="62%" VALIGN="TOP">&nbsp;</TD>
<TD WIDTH="38%" VALIGN="TOP">&nbsp;</TD>
</TR>
<TR><TD WIDTH="62%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="CENTER">Registrant's  telephone number, including area code</FONT></TD>
<TD WIDTH="38%" VALIGN="TOP">
<B><FONT SIZE=2><P ALIGN="CENTER">(845) 735-6000</B></FONT></TD>
</TR>
</TABLE>
</CENTER></P>

<FONT SIZE=1><P ALIGN="JUSTIFY"></P>
<P ALIGN="CENTER">Securities registered pursuant to Section 12(b) of the Act: </P></FONT>
<P ALIGN="CENTER"><CENTER><TABLE CELLSPACING=0 BORDER=0 CELLPADDING=0 WIDTH=734 DIR="LTR">
<TR><TD WIDTH="46%" VALIGN="TOP">
<U><FONT SIZE=2><P ALIGN="CENTER">Title of each class</U></FONT></TD>
<TD WIDTH="4%" VALIGN="TOP">&nbsp;</TD>
<TD WIDTH="50%" VALIGN="TOP">
<U><FONT SIZE=2><P ALIGN="CENTER">Name of each Exchange on which Registered</U></FONT></TD>
</TR>
<TR><TD WIDTH="46%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="CENTER">Common stock, $.01 par value</FONT></TD>
<TD WIDTH="4%" VALIGN="TOP">&nbsp;</TD>
<TD WIDTH="50%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="CENTER">The NASDAQ Stock Market LLC (NASDAQ Capital Market)</FONT></TD>
</TR>
</TABLE>
</CENTER></P>

<FONT SIZE=2><P ALIGN="CENTER">Securities registered pursuant to Section 12(g) of the Act: None</P>
<P ALIGN="JUSTIFY">Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act <B>[</B></FONT><FONT SIZE=1>&nbsp;&nbsp;</FONT><B><FONT SIZE=2>] Yes  [x ]  No</P>
</B><P ALIGN="JUSTIFY">Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or 15(d) of the Exchange Act <B>[</B></FONT><FONT SIZE=1>&nbsp;&nbsp;</FONT><B><FONT SIZE=2>] Yes  [x ] No</P>
</B><P ALIGN="JUSTIFY">Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. <B>[X]  </B> <B>Yes [</B></FONT><FONT SIZE=1>&nbsp;&nbsp;&nbsp;</FONT><B><FONT SIZE=2>]  No</B><U> </P>
</U><P ALIGN="JUSTIFY">Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Website, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (SECTION 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files). <B>[</B></FONT><FONT SIZE=1>&nbsp;&nbsp;</FONT><B><FONT SIZE=2>]  </B> <B>Yes  [</B></FONT><FONT SIZE=1>&nbsp;&nbsp;</FONT><B><FONT SIZE=2>]  No</B><U> </P>
</U><P ALIGN="JUSTIFY">Indicate by check mark if  disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will not be contained, to the best of registrant's knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K.  <B>[</B></FONT><FONT SIZE=1>&nbsp;&nbsp;</FONT><B><FONT SIZE=2>]</B>   </P>
<P ALIGN="JUSTIFY">Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of "large accelerated filer", "accelerated filer", and "smaller reporting company" in Rule12b-2 of the Exchange Act. </P>
<P ALIGN="JUSTIFY">Large accelerated filer&#9;[</FONT><FONT SIZE=1>&nbsp;&nbsp;</FONT><FONT SIZE=2>]&#9;&#9;Accelerated filer [</FONT><FONT SIZE=1>&nbsp;&nbsp;</FONT><FONT SIZE=2>]Non-accelerated filer [</FONT><FONT SIZE=1>&nbsp;&nbsp;</FONT><FONT SIZE=2>] (Do not check if a smaller reporting company)&#9;&#9;Smaller reporting company [x]</P>
<P ALIGN="JUSTIFY">Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act).  <B>[</B></FONT><FONT SIZE=1>&nbsp;&nbsp;</FONT><B><FONT SIZE=2>] Yes [X]  No </P>
</B><P ALIGN="JUSTIFY">The aggregate market value of registrant's common stock held by non-affiliates at June 30, 2009 was approximately $15,667,044.  As of February 26, 2010 there were 20,941,706 shares of the registrant's common stock outstanding<B>. </P>
</B><P ALIGN="JUSTIFY">Documents incorporated by reference: <B>None</P>
</B><P ALIGN="JUSTIFY"></P>
<P>&nbsp;</P>
<B><P ALIGN="CENTER">EXPLANATORY NOTE</P>
</B><P ALIGN="JUSTIFY"></P>
<P ALIGN="JUSTIFY">This Amendment No.&nbsp;1 on Form 10-K/A (the "Amendment") amends the Annual Report on Form 10-K of Hudson Technologies, Inc.  for the fiscal year ended December&nbsp;31, 2009, originally filed with the Securities and Exchange Commission ("SEC") on March 1, 2010 (the "Original Filing"). We are filing this Amendment to amend certain information contained in the beneficial ownership table located in Item 12 of Part III of the Original Filing.  In connection with the filing of this Amendment and pursuant to the rules of the SEC, we are including with this Amendment certain new certifications by our principal executive officer and principal financial officer as exhibits 31.1 and 31.2. Accordingly, Item&nbsp;15 of Part IV has also been amended to reflect the filing of these new certifications.</P>
<P ALIGN="JUSTIFY">&nbsp;</P>
<P ALIGN="JUSTIFY">Except as described above, no other changes have been made to the Original Filing. The Original Filing continues to speak as of the date of the Original Filing, and we have not updated the disclosures contained therein to reflect any events which occurred at a date subsequent to the filing of the Original Filing other than as expressly indicated in this Amendment. </P>

<P>&nbsp;</P>
<B><P ALIGN="CENTER">PART III</P>
</B><P ALIGN="CENTER"></P>
<P>&nbsp;</P>
<B><U><P ALIGN="JUSTIFY">Item 12.  Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters</U> </P>
</B></FONT><FONT SIZE=1><P ALIGN="JUSTIFY"></P>
</FONT><FONT SIZE=2><P ALIGN="JUSTIFY">The following table sets forth information as of February 26, 2010 based on information obtained from the persons named below, with respect to the beneficial ownership of Hudson's common stock by (i) each person known by Hudson to be the beneficial owner of more than 5% of Hudson's outstanding common stock, (ii) the Named Executives, (iii) each director of Hudson, and (iv) all of our directors and executive officers as a group:</P>
<P ALIGN="JUSTIFY"></P>
<B><P ALIGN="CENTER">BENEFICIAL OWNERSHIP TABLE</P>
<P ALIGN="CENTER"></P></B></FONT>
<P ALIGN="CENTER"><CENTER><TABLE BORDER=0 CELLSPACING=0 CELLPADDING=0 WIDTH=624 DIR="LTR">
<TR><TD WIDTH="25%" VALIGN="BOTTOM">
<B><U><FONT SIZE=1><P ALIGN="CENTER">Title of Class</B></U></FONT></TD>
<TD WIDTH="25%" VALIGN="BOTTOM" COLSPAN=2>
<B><U><FONT SIZE=1><P ALIGN="CENTER">Name of Beneficial Owner</B></U></FONT></TD>
<TD WIDTH="25%" VALIGN="BOTTOM" COLSPAN=2>
<B><FONT SIZE=1><P ALIGN="CENTER">Amount and Nature of<BR> <U>Beneficial Ownership (1)</B></U></FONT></TD>
<TD WIDTH="25%" VALIGN="BOTTOM" COLSPAN=2>
<B><U><FONT SIZE=1><P ALIGN="CENTER">Percent of Class</B></U></FONT></TD>
</TR>
<TR><TD WIDTH="25%" VALIGN="BOTTOM" HEIGHT=24>
<FONT SIZE=1><P ALIGN="CENTER">Common stock</FONT></TD>
<TD WIDTH="25%" VALIGN="BOTTOM" COLSPAN=2 HEIGHT=24>
<FONT SIZE=1><P ALIGN="CENTER">Kevin J. Zugibe</FONT></TD>
<TD WIDTH="25%" VALIGN="BOTTOM" COLSPAN=2 HEIGHT=24>
<FONT SIZE=1><P ALIGN="RIGHT">5,636,705    (2)</FONT></TD>
<TD WIDTH="25%" VALIGN="BOTTOM" COLSPAN=2 HEIGHT=24>
<FONT SIZE=1><P ALIGN="CENTER">25.80%</P>
<P ALIGN="CENTER"></FONT></TD>
</TR>
<TR><TD WIDTH="25%" VALIGN="BOTTOM" HEIGHT=24>
<FONT SIZE=1><P ALIGN="CENTER">Common stock</FONT></TD>
<TD WIDTH="25%" VALIGN="BOTTOM" COLSPAN=2 HEIGHT=24>
<FONT SIZE=1><P ALIGN="CENTER">Brian F. Coleman</FONT></TD>
<TD WIDTH="25%" VALIGN="BOTTOM" COLSPAN=2 HEIGHT=24>
<FONT SIZE=1><P ALIGN="RIGHT">947,176     (3)</FONT></TD>
<TD WIDTH="25%" VALIGN="BOTTOM" COLSPAN=2 HEIGHT=24>
<FONT SIZE=1><P ALIGN="CENTER">4.40%</FONT></TD>
</TR>
<TR><TD WIDTH="25%" VALIGN="BOTTOM" HEIGHT=24>
<FONT SIZE=1><P ALIGN="CENTER">Common stock</FONT></TD>
<TD WIDTH="25%" VALIGN="BOTTOM" COLSPAN=2 HEIGHT=24>
<FONT SIZE=1><P ALIGN="CENTER">Charles F. Harkins</FONT></TD>
<TD WIDTH="25%" VALIGN="BOTTOM" COLSPAN=2 HEIGHT=24>
<FONT SIZE=1><P ALIGN="RIGHT">351,452     (4)</FONT></TD>
<TD WIDTH="25%" VALIGN="BOTTOM" COLSPAN=2 HEIGHT=24>
<FONT SIZE=1><P ALIGN="CENTER">1.65%</P>
<P ALIGN="CENTER">&nbsp;</P>
<P ALIGN="CENTER">&nbsp;</FONT></TD>
</TR>
<TR><TD WIDTH="25%" VALIGN="BOTTOM" HEIGHT=24>
<FONT SIZE=1><P ALIGN="CENTER">Common Stock</FONT></TD>
<TD WIDTH="25%" VALIGN="BOTTOM" COLSPAN=2 HEIGHT=24>
<FONT SIZE=1><P ALIGN="CENTER">Stephen P. Mandracchia</FONT></TD>
<TD WIDTH="25%" VALIGN="BOTTOM" COLSPAN=2 HEIGHT=24>
<FONT SIZE=1><P ALIGN="RIGHT">2,400,695   (5)  </FONT></TD>
<TD WIDTH="25%" VALIGN="BOTTOM" COLSPAN=2 HEIGHT=24>
<FONT SIZE=1><P ALIGN="CENTER">11.26%</FONT></TD>
</TR>
<TR><TD WIDTH="25%" VALIGN="BOTTOM" HEIGHT=24>
<FONT SIZE=1><P ALIGN="CENTER">Common stock</FONT></TD>
<TD WIDTH="25%" VALIGN="BOTTOM" COLSPAN=2 HEIGHT=24>
<FONT SIZE=1><P ALIGN="CENTER">Vincent P. Abbatecola</FONT></TD>
<TD WIDTH="25%" VALIGN="BOTTOM" COLSPAN=2 HEIGHT=24>
<FONT SIZE=1><P ALIGN="RIGHT">114,500     (6)</FONT></TD>
<TD WIDTH="25%" VALIGN="BOTTOM" COLSPAN=2 HEIGHT=24>
<FONT SIZE=1><P ALIGN="CENTER">*</FONT></TD>
</TR>
<TR><TD WIDTH="25%" VALIGN="BOTTOM" HEIGHT=24>
<FONT SIZE=1><P ALIGN="CENTER">Common stock</FONT></TD>
<TD WIDTH="25%" VALIGN="BOTTOM" COLSPAN=2 HEIGHT=24>
<FONT SIZE=1><P ALIGN="CENTER">Dominic J. Monetta</FONT></TD>
<TD WIDTH="25%" VALIGN="BOTTOM" COLSPAN=2 HEIGHT=24>
<FONT SIZE=1><P ALIGN="RIGHT">160,100     (7)</FONT></TD>
<TD WIDTH="25%" VALIGN="BOTTOM" COLSPAN=2 HEIGHT=24>
<FONT SIZE=1><P ALIGN="CENTER">*</FONT></TD>
</TR>
<TR><TD WIDTH="25%" VALIGN="BOTTOM" HEIGHT=24>
<FONT SIZE=1><P ALIGN="CENTER">Common stock</FONT></TD>
<TD WIDTH="25%" VALIGN="BOTTOM" COLSPAN=2 HEIGHT=24>
<FONT SIZE=1><P ALIGN="CENTER">Otto C. Morch</FONT></TD>
<TD WIDTH="25%" VALIGN="BOTTOM" COLSPAN=2 HEIGHT=24>
<FONT SIZE=1><P ALIGN="RIGHT">92,509     (8)</FONT></TD>
<TD WIDTH="25%" VALIGN="BOTTOM" COLSPAN=2 HEIGHT=24>
<FONT SIZE=1><P ALIGN="CENTER">*</FONT></TD>
</TR>
<TR><TD WIDTH="25%" VALIGN="MIDDLE" HEIGHT=51>
<FONT SIZE=1><P ALIGN="CENTER">Common stock</FONT></TD>
<TD WIDTH="25%" VALIGN="MIDDLE" COLSPAN=2 HEIGHT=51>
<FONT SIZE=1><P ALIGN="CENTER">Marathon Capital Management, LLC</FONT></TD>
<TD WIDTH="25%" VALIGN="MIDDLE" COLSPAN=2 HEIGHT=51>
<FONT SIZE=1><P ALIGN="RIGHT">1,599,500     (9)</FONT></TD>
<TD WIDTH="25%" VALIGN="MIDDLE" COLSPAN=2 HEIGHT=51>
<FONT SIZE=1><P ALIGN="CENTER">7.6%</FONT></TD>
</TR>
<TR><TD WIDTH="25%" VALIGN="MIDDLE" HEIGHT=51>
<FONT SIZE=1><P ALIGN="CENTER">Common stock</FONT></TD>
<TD WIDTH="25%" VALIGN="MIDDLE" COLSPAN=2 HEIGHT=51>
<FONT SIZE=1><P ALIGN="CENTER">All directors and executive officers as a group (Eight Persons)</FONT></TD>
<TD WIDTH="25%" VALIGN="MIDDLE" COLSPAN=2 HEIGHT=51>
<FONT SIZE=1><P ALIGN="RIGHT">10,281,907     (10)</FONT></TD>
<TD WIDTH="25%" VALIGN="MIDDLE" COLSPAN=2 HEIGHT=51>
<FONT SIZE=1><P ALIGN="CENTER">43.47%</FONT></TD>
</TR>
</TABLE>
</CENTER></P>

<FONT SIZE=2><P ALIGN="CENTER"></P>
<P>* = Less than 1%</P>
<P>_______</P>
<P ALIGN="JUSTIFY">(1) A person is deemed to be the beneficial owner of securities that can be acquired by such person within 60 days from February 26, 2010.  Each beneficial owner's percentage ownership is determined by assuming that options and warrants that are held by such person (but not held by any other person) and which are exercisable within 60 days from February 26, 2010 have been exercised.  Unless otherwise noted, Hudson believes that all persons named in the table have sole voting and investment power with respect to all shares of our common stock beneficially owned by them. The address for each beneficial owner, unless otherwise noted, is c/o Hudson Technologies, Inc. at PO Box 1541, One Blue Hill Plaza, Pearl River, New York 10965.</P>
<P ALIGN="JUSTIFY"></P>
<P ALIGN="JUSTIFY">(2) Includes (i) 87,500 shares which may be purchased at $1.13 per share; (ii) 193,750 shares which may be purchased at $1.15 per share; (iii) 37,500 shares which may be purchased at $.83 per share; (iv) 18,750 shares which may be purchased at $.95 per share; (v) 93,750 shares which may be purchased at $1.02 per share; (vi) 18,750 shares which may be purchased at $.87 per share; (vii) 18,750 shares which may be purchased at $2.15 per share; (viii) 123,750 shares which may be purchased at $1.76 per share; (ix) 35,000 shares which may be purchased at $1.40 per share; (x) 9,300 shares which may be purchased at $1.02 per share, (xi) 195,000 shares </P>
<P ALIGN="JUSTIFY"></P>
</FONT><P ALIGN="CENTER">Page 2</P>
<FONT SIZE=2><P ALIGN="JUSTIFY"></P>
<P ALIGN="JUSTIFY">that may be purchased at $0.85 per share; and (xii) 78,000 shares which may be purchased at $1.26 per share, under immediately exercisable options. </P>
<P ALIGN="JUSTIFY"></P>
<P ALIGN="JUSTIFY">(3) Includes  (i) 75,000 shares which may be purchased at $1.13 per share; (ii) 18,750 shares which may be purchased at $1.15 per share; (iii) 25,000 shares which may be purchased at $.83 per share; (iv) 12,500 shares which may be purchased at $.95 per share; (v) 62,500 shares which may be purchased at $1.02 per share; (vi) 12,500 shares which may be purchased at $.87 per share; (vii) 12,500 shares which may be purchased at $2.15 per share; (viii) 82,500 shares which may be purchased at $1.76 per share; (ix) 32,500 shares which may be purchased at $1.40 per share; (x) 8,100 shares which may be purchased at $1.02 per share, (xi) 180,000 shares which may be purchased at $0.85 per share;  (xii) and 75,000 shares which may be purchased at $1.26 per share, under immediately exercisable options.  </P>
<P ALIGN="JUSTIFY"></P>
<P ALIGN="JUSTIFY">(4) Includes (i) 13,114 shares which may be purchased at $1.13 per share; (ii) 14,063 shares which may be purchased at $1.15 per share; (iii) 9,375 shares which may be purchased at $2.15 per share; (iv) 61,875 shares which may be purchased at $1.76 per share; (v) 23,125 shares which may be purchased at $1.40 per share; (vi) 7,900 shares which may be purchased at $1.02, (vii) 150,000 which may be purchased at $0.85 per share; and (viii)72,000 shares which may be purchased at $1.26 per share, under immediately exercisable options.</P>
<P ALIGN="JUSTIFY"></P>
<P ALIGN="JUSTIFY">(5)  Includes (i) 1,563,420 shares held of record in the name of Mr. Mandracchia's wife, Theresa Mandracchia, over which Mr. Mandracchia has sole voting power and shared dispositive power, and (ii) the following shares which may be purchased by Mr. Mandracchia upon the exercise of options previously granted to him:  (a) 40,000 shares which may be purchased at $1.13 per share; (b) 9,375 shares which may be purchased at $1.15 per share; (c) 12,500 shares which may be purchased at $.83 per share; (d) 6,250 shares which may be purchased at $.95 per share; (d) 31,250 shares which may be purchased at $1.02 per share; (f) 6,250 shares which may be purchased at $.87 per share; (g) 6,250 shares which may be purchased at $2.15 per share; (h) 51,250 shares which may be purchased at $1.76 per share; (i) 20,750 shares which may be purchased at $1.40 per share; (j) 7,400 shares which may be purchased at $1.02 per share, (k) 125,000 shares that may be purchased at $0.85 per share; and (l) 58,000 shares w
hich may be purchased at $1.26 per share, under immediately exercisable options.</P>
<P ALIGN="JUSTIFY"></P>
<P ALIGN="JUSTIFY">(6)  Includes (i) 40,000 shares which may be purchased at $0.85 per share, and (ii) 40,000 shares which may be purchased at $1.21 per share, under immediately exercisable options. </P>
<P ALIGN="JUSTIFY"></P>
<P ALIGN="JUSTIFY">(7)  Includes 40,000 shares which may be purchased at $1.21 per share under immediately exercisable options.</P>
<P ALIGN="JUSTIFY"></P>
<P ALIGN="JUSTIFY">(8) Includes (i) 10,000 shares, which may be purchased at $0.94 per share; (ii) 2,500 shares, which may be purchased at $1.12 per share; and (iii) 20,000 shares which may be purchased at $0.85 per share, and (iv) 40,000 shares which may be purchased at $1.21 per share, under immediately exercisable options.</P>
<P ALIGN="JUSTIFY"></P>
<P ALIGN="JUSTIFY">(9) Represents aggregate amount of beneficially owned common stock as reported in Schedule 13G filed by Marathon Capital Management, LLC on January 19, 2010.  The address of Marathon Capital Management, LLC is 4 North Park Drive, Suite 106, Hunt Valley, MD  21030.</P>
<P ALIGN="JUSTIFY"></P>
<P ALIGN="JUSTIFY">(10) Includes exercisable options to purchase 2,711,347 shares of common stock which may be purchased under immediately exercisable options.</P>
<P ALIGN="JUSTIFY"></P>
<P ALIGN="JUSTIFY">&nbsp;</P>
</FONT><P ALIGN="CENTER">Page 3</P>
<FONT SIZE=2><P ALIGN="JUSTIFY"></P>
<P>&nbsp;</P>
<P>&nbsp;</P>
<B><P ALIGN="JUSTIFY">Equity Compensation Plan </P>
</B></FONT><P ALIGN="JUSTIFY"></P>
<FONT SIZE=2><P ALIGN="JUSTIFY">The following table provides certain information with respect to all of Hudson's equity compensation plans as of December 31, 2009.</P>
<P ALIGN="JUSTIFY"></P></FONT>
<P ALIGN="CENTER"><CENTER><TABLE CELLSPACING=0 BORDER=0 CELLPADDING=0 WIDTH=734 DIR="LTR">
<TR><TD WIDTH="27%" VALIGN="TOP">&nbsp;</TD>
<TD WIDTH="23%" VALIGN="BOTTOM">
<FONT SIZE=2><P ALIGN="CENTER">Number of securities to be issued upon exercise of outstanding options, warrants and rights</FONT></TD>
<TD WIDTH="24%" VALIGN="BOTTOM">
<FONT SIZE=2><P ALIGN="CENTER">Weighted-average exercise price of outstanding options, warrants and rights</FONT></TD>
<TD WIDTH="26%" VALIGN="BOTTOM">
<FONT SIZE=2><P ALIGN="CENTER">Number of securities remaining available for future issuance under equity compensation plans (excluding securities reflected in column (a))</FONT></TD>
</TR>
<TR><TD WIDTH="27%" VALIGN="TOP">
<U><FONT SIZE=2><P ALIGN="JUSTIFY">Plan Category</U></FONT></TD>
<TD WIDTH="23%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="CENTER">(a)</FONT></TD>
<TD WIDTH="24%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="CENTER">(b)</FONT></TD>
<TD WIDTH="26%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="CENTER">(c)</FONT></TD>
</TR>
<TR><TD WIDTH="27%" VALIGN="TOP">
<FONT SIZE=2><P>Equity compensation plans approved by security holders </FONT></TD>
<TD WIDTH="23%" VALIGN="BOTTOM">
<FONT SIZE=2><P ALIGN="CENTER">3,394,343</FONT></TD>
<TD WIDTH="24%" VALIGN="BOTTOM">
<FONT SIZE=2><P ALIGN="CENTER"> $1.20</FONT></TD>
<TD WIDTH="26%" VALIGN="BOTTOM">
<FONT SIZE=2><P ALIGN="CENTER">2,809,000</FONT></TD>
</TR>
<TR><TD WIDTH="27%" VALIGN="TOP">&nbsp;</TD>
<TD WIDTH="23%" VALIGN="BOTTOM">&nbsp;</TD>
<TD WIDTH="24%" VALIGN="BOTTOM">&nbsp;</TD>
<TD WIDTH="26%" VALIGN="BOTTOM">&nbsp;</TD>
</TR>
<TR><TD WIDTH="27%" VALIGN="TOP">
<FONT SIZE=2><P>Equity compensation plans not approved by security holders (1)</FONT></TD>
<TD WIDTH="23%" VALIGN="BOTTOM">
<FONT SIZE=2><P ALIGN="CENTER">  <U>173,500</U></FONT></TD>
<TD WIDTH="24%" VALIGN="BOTTOM">
<FONT SIZE=2><P ALIGN="CENTER">$1.69</FONT></TD>
<TD WIDTH="26%" VALIGN="BOTTOM">
<U><FONT SIZE=2><P ALIGN="CENTER">            - -</U></FONT></TD>
</TR>
<TR><TD WIDTH="27%" VALIGN="TOP">&nbsp;</TD>
<TD WIDTH="23%" VALIGN="BOTTOM">&nbsp;</TD>
<TD WIDTH="24%" VALIGN="BOTTOM">&nbsp;</TD>
<TD WIDTH="26%" VALIGN="BOTTOM">&nbsp;</TD>
</TR>
<TR><TD WIDTH="27%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Total</FONT></TD>
<TD WIDTH="23%" VALIGN="BOTTOM">
<FONT SIZE=2><P ALIGN="CENTER">3,567,843</FONT></TD>
<TD WIDTH="24%" VALIGN="BOTTOM">
<FONT SIZE=2><P ALIGN="CENTER">$1.22</FONT></TD>
<TD WIDTH="26%" VALIGN="BOTTOM">
<FONT SIZE=2><P ALIGN="CENTER">2,809,000</FONT></TD>
</TR>
</TABLE>
</CENTER></P>

<FONT SIZE=2><P>__________________________</P>
<OL>

<LI>Includes (i) 100,000 five-year warrants, issued in 2008 to our lenders, in connection with an amendment to the Facility, exercisable at $1.88 per share and (ii) 73,500 five-year warrants, issued in 2009 to our placement agent in connection with the Offering exercisable, at $1.4375 per share.</LI></OL>


<P ALIGN="JUSTIFY">&nbsp;</P>
<P ALIGN="JUSTIFY">&nbsp;</P>
</FONT><P ALIGN="CENTER">Page 4</P>
<FONT SIZE=2><P ALIGN="JUSTIFY"></P>
<P ALIGN="CENTER">&nbsp;</P>
<B><P ALIGN="CENTER">Part IV</P>
</B><P ALIGN="JUSTIFY"></P>
<B><U><P ALIGN="JUSTIFY">Item 15.  Exhibits, Financial Statement and Schedules </P></B></U></FONT>
<P ALIGN="CENTER"><CENTER><TABLE CELLSPACING=0 BORDER=0 CELLPADDING=0 WIDTH=655 DIR="LTR">
<TR><TD VALIGN="TOP" COLSPAN=2>&nbsp;</TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">(A)(1)</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<U><FONT SIZE=2><P ALIGN="JUSTIFY">Financial Statements</U></FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">&nbsp;</TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">The consolidated financial statements of Hudson Technologies, Inc. appear after Item 15 of this report</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">(A)(2)</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<U><FONT SIZE=2><P ALIGN="JUSTIFY">Financial Statement Schedules</U></FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">&nbsp;</TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">None</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">(A)(3)</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<U><FONT SIZE=2><P ALIGN="JUSTIFY">Exhibits</U></FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">3.1</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Certificate of Incorporation and Amendment.  (1)</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">3.2</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Amendment to Certificate of Incorporation, dated July 20,1994.  (1)</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">3.3</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Amendment to Certificate of Incorporation, dated October 26, 1994.  (1)</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">3.4</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Amended By-Laws, as amended March 10, 2006.  (11)</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">3.5</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Certificate of Amendment of the Certificate of Incorporation dated March 16, 1999.  (2)</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">3.6</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Certificate of Correction of the Certificate of Amendment dated March 25, 1999.  (2)</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">3.7</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Certificate of Amendment of the Certificate of Incorporation dated March 29, 1999.  (2)</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">3.8</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Certificate of Amendment of the Certificate of Incorporation dated February 16, 2001.  (4)</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">3.9</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Certificate of Amendment of the Certificate of Incorporation of Hudson Technologies, Inc., dated March 20, 2002.  (5)</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">3.10</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Amendment to Certificate of Incorporation dated January 3, 2003.  (6)</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">3.11</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Company's By-Laws, as amended September 19, 2007.  (12)</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">10.1</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Assignment of patent rights from Kevin J. Zugibe to Registrant.  (1)</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">10.2</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">1997 Stock Option Plan of the Company, as amended.  (3) (*)</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">10.3</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">1994 Stock Option Plan of the Company.  (1)*</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">10.4</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Form of Common stock Purchase Warrants to be issued to Holders of 10% Subordinated Convertible Note dated December 20, 2002.  (6)</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">10.5</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">2004 Stock Incentive Plan. (10)*</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">10.6</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Form of Incentive Stock Option Agreement under the 2004 Stock Incentive Plan of the Company with full vesting upon issuance.  (7)</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">10.7</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Form of Incentive Stock Option Agreement under the 2004 Stock Incentive Plan of the Company with options vesting in equal quarterly installments over two year period.  (7)</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">10.8</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Form of Non-Incentive Stock Option Agreement under the 2004 Stock Incentive Plan of the Company with full vesting upon issuance.  (7)</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">10.9</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Commercial Mortgage, dated May 27, 2005, between Hudson Technologies Company and Busey Bank.  (8)</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">10.10</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Commercial Installment Mortgage Note, dated May 27, 2005, between Hudson Technologies Company and Busey Bank.  (8)</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">10.11</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Amended and Restated Employment Agreement with Kevin J. Zugibe, as amended (16)*</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">10.12</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Agreement with Brian F. Coleman, as amended.  (16)*</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">10.13</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Agreement with James R. Buscemi, as amended. (16)*</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">10.14</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Agreement with Charles F. Harkins, as amended.  (16)*</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">10.15</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Agreement with Stephen P. Mandracchia, as amended. (16)*</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">10.16</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Amended and Restated Loan Agreement between Hudson Technologies Company and Keltic Financial Partners, L.P., dated June 26, 2007. (12)</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">10.17</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Mortgage and Security Agreement between Hudson Technologies Company and Keltic Financial Partners, L.P., dated June 26, 2007.  (12)</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">10.18</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Amended and Restated Revolving Note, dated June 26, 2007. (12)</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">10.19</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Amended and Restated Term Note A, dated June 26, 2007 in the amount of $2,500,000 (12)</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">10.20</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Term Note B, dated June 26, 2007, in the amount of $4,500,000.  (12)</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">10.21</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Stock Purchase Agreement between Hudson Technologies, Inc. and Fleming Funds, dated June 28, 2007. (12</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">10.22</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Stock Purchase Agreement between Kevin J. Zugibe and Fleming, U.S. Discovery Fund III, L.P. dated June 28, 2007. (12)</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">10.23</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Stock Purchase Agreement between Stephen P. Mandracchia and Fleming, U.S. Discovery Fund III, L.P., dated June 28, 2007. (12)</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">10.24</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Stock Purchase Agreement between Brian F. Coleman and Fleming, U.S. Discovery Fund III, L.P. dated June 28, 2007. (12)</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">10.25</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Stock Purchase Agreement between James R. Buscemi and Fleming, U.S. Discovery Fund III, L.P. dated June 28, 2007. (12)</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">10.26</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Stock Purchase Agreement between Hudson Technologies, Inc., Fleming U.S. Discovery Fund III, L.P. and Fleming U.S. Offshore Discovery Fund III, L.P. dated September 25, 2007. (13)</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">10.27</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Second Amendment to Amended and Restated Loan Agreement between Hudson Technologies Company, Keltic Financial Partners, L.P and Bridge Healthcare Finance, LLC, dated April 17, 2008. (14)</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">&nbsp;</TD>
<TD WIDTH="92%" VALIGN="TOP">
<P ALIGN="CENTER">Page 5</P>
<FONT SIZE=2><P ALIGN="JUSTIFY"></FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">10.28</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Second Amended, Restated and Bifurcated Revolving Note, dated April 17, 2008, in the amount of $10,000,000. (14).</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">10.29</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Second Amended, Restated and Bifurcated Revolving Note, dated April 17, 2008, in the amount of $5,000,000. (14)</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">10.30</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Second Amended, Restated and Bifurcated Term Note A, dated April 17, 2008 in the amount of $1,666,667. (14)</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">10.31</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Second Amended, Restated and Bifurcated Term Note A, dated April 17, 2008 in the amount of $833,333. (14)</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">10.32</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Amended, Restated and Bifurcated Term Note B, dated April 17, 2008, in the amount of $3,000,000. (14)</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">10.33</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Amended, Restated and Bifurcated Term Note B, dated April 17, 2008, in the amount of $1,500,000 . (14)</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">10.34</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Warrant to Purchase Common Stock, dated April 17, 2008, for 66,667 shares of Common Stock issued to Keltic Financial Partners, L.P. (14)</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">10.35</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Warrant to Purchase Common Stock, dated April 17, 2008, for 33,333 shares of Common Stock issued to Bridge Healthcare Finance, LLC. (14)</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">10.36</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">2008 Stock Incentive Plan. (15)</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">10.37</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Form of Incentive Stock Option Agreement under the 2008 Stock Incentive Plan with full vesting upon issuance. (16)</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">10.38</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Form of Incentive Stock Option Agreement under the 2008 Stock Incentive Plan with options vesting in equal installments over two year period. (16)</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">10.39</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Form of Non-Incentive Stock Option Agreement under the 2008 Stock Incentive Plan with full vesting upon issuance. (16)</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">10.40</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Form of Non-Incentive Stock Option Agreement under the 2008 Stock Incentive Plan with options vesting in equal installments over two year period. (16)</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">10.41</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Third Amendment to Amended and Restarted Loan Agreement among Hudson Technologies Company, Keltic Financial Partners, L.P. and Bridge Healthcare Finance, LLC, dated March 20, 2009. (17)</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">10.42</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Note Purchase Agreement between Hudson Technologies Company and Richard Parrillo, dated March 19, 2009 and executed March 20, 2009. (17)</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">10.43</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">10% Secured Subordinated Promissory Note of the Company in the amount of $1,000,000, dated March 26, 2009 issued in favor of Richard Parrillo. (17)</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">10.44</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">General Security Agreement between Hudson Technologies Company and Richard Parrillo, dated March 19, 2009 and executed March 20, 2009 .(17)</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">10.45</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Subordination and Intercreditor Agreement among Richard Parrillo, Keltic Financial Partners, L.P., Bridge Healthcare Finance, LLC and Hudson Technologies Company, dated March 26, 2009. (17)</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">10.46</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Note Purchase Agreement between Hudson Technologies Company and Catherine Zugibe, dated March 26, 2009. (17)</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">10.47</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">10% Secured Subordinated Promissory Note of the Company in the amount of $1,000,000, dated March 26, 2009 issued in favor of Catherine Zugibe. (17)</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">10.48</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">General Security Agreement between Hudson Technologies Company and Catherine Zugibe, dated March 26, 2009. (17)</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">10.49</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Subordination and Intercreditor Agreement between Catherine Zugibe, Keltic Financial Partners, L.P., Bridge Healthcare Finance, LLC and Hudson Technologies Company, dated March 26, 2009. (17).</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">10.50</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Fourth Amendment to Amended and Restated Loan Agreement among Hudson Technologies Company, Keltic Financial Partners, L.P. and Bridge Healthcare Finance, LLC, dated July 15, 2009.  (18)</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">10.51</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Waiver to Loan Agreement among Hudson Technologies Company, Keltic Financial Partners, L.P. and Bridge Healthcare Finance, LLC, dated July 15, 2009. (18)</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">10.52</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">First Amendment to Note of the Company in the amount of $1,000,000 dated September 30, 2009 issued in favor of Richard Parrillo. (19)</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">10.53</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Placement Agent Agreement between Roth Capital Partners, LLC and Hudson Technologies, Inc., dated July 31, 2009. (20)</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">10.54</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Warrant, dated August 5, 2009, for 73,500 shares of Common Stock issued to Roth Capital Partners, LLC.  (22)</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">10.55</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Form of Subscription Agreement.  (20)</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">10.56</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Fifth Amendment to Amended and Restated Loan Agreement between Hudson Technologies Company, Keltic Financial Partners II, LP and Bridge Healthcare Finance LLC, dated August 12, 2009. (21)</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">14</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Code of Business Conduct and Ethics.  (9)</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">21</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Subsidiaries of the Registrant. (22)</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">23.1</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Consent of BDO Seidman, LLP. (22)</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P>31.1</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P>Certification of Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002. (23)</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">31.2</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Certification of Chief Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002. (23)</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">32.1</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Certification of the Chief Executive Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of Sarbanes-Oxley Act of 2002. (22)</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">32.2</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Certification of the Chief Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of Sarbanes-Oxley Act of 2002. (22) </FONT></TD>
</TR>
<TR><TD VALIGN="TOP" COLSPAN=2>
<P ALIGN="CENTER">Page 6</TD>
</TR>
<TR><TD VALIGN="TOP" COLSPAN=2>
<FONT SIZE=1><P ALIGN="JUSTIFY">_________________________</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">(1)</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Incorporated by reference to the comparable exhibit filed with the Company's Registration Statement on Form SB-2 (No. 33-80279-NY).</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">(2)</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Incorporated by reference to the comparable exhibit filed with the Company's Quarterly Report on Form 10-QSB for the quarter ended June 30, 1999.</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">(3)</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Incorporated by reference to the comparable exhibit filed with the Company's Annual Report on Form 10-KSB for the year ended December 31, 1999.</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">(4)</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Incorporated by reference to the comparable exhibit filed with the Company's Annual Report on Form 10-KSB for the year ended December 31, 2000.  </FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">(5)</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Incorporated by reference to the comparable exhibit filed with the Company's Annual Report on Form 10-KSB for the year ended December 31, 2001.</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">(6)</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Incorporated by reference to the comparable exhibit filed with the Company's Annual Report on Form 10-KSB for the year ended December 31, 2002.</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">(7)</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Incorporated by reference to the comparable exhibit filed with the Company's Annual Report on Form 10-KSB for the year ended December 31, 2004.</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP" HEIGHT=30>
<FONT SIZE=2><P ALIGN="JUSTIFY">(8)</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP" HEIGHT=30>
<FONT SIZE=2><P ALIGN="JUSTIFY">Incorporated by reference to the comparable exhibit filed with the Company's Quarterly Report on Form 10-QSB for the quarter ended June 30, 2005</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP" HEIGHT=30>
<FONT SIZE=2><P ALIGN="JUSTIFY">(9)</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP" HEIGHT=30>
<FONT SIZE=2><P ALIGN="JUSTIFY">Incorporated by reference to the comparable exhibit filed with the Company's Current Report on Form 8-K, for the event dated March 3, 2005, and filed May 31, 2005.</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">(10)</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Incorporated by reference to Appendix B to the Company's Definitive Proxy Statement on Schedule 14A filed August 14, 2004<B>. </B> </FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">(11)</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Incorporated by reference to the comparable exhibit filed with the Company's Quarterly Report on Form 10-QSB for the quarter ended September 30, 2007.</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">(12)</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Incorporated by reference to the comparable exhibit filed with the Company's Schedule TO filed June 29, 2007.</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">(13)</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Incorporated by reference to the comparable exhibit filed with the Company's Current Report on Form 8-K for the event dated September 19, 2007, filed September 25, 2007.</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">(14)</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Incorporated by reference to comparable exhibit filed with the Company's Current Report on Form 8-K for the event dated April 17, 2008, filed April 22, 2008.</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">(15)</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Incorporated by reference to Appendix I to the Company's Definitive Proxy Statement on Schedule 14A filed July 29, 2008.</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">(16)</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Incorporated by reference to the comparable exhibit filed with the Company's Annual Report on Form 10-K for the year ended December 31, 2008.</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">(17)</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Incorporated by reference to the comparable exhibit filed with the Company's Quarterly Report on Form 10-Q for the quarter ended March 30, 2009.</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">(18)</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Incorporated by reference to the comparable exhibit filed with the Company's Quarterly Report on Form 10-Q for the quarter ended June 30, 2009</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">(19)</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Incorporated by reference to the comparable exhibit filed with the Company's Quarterly Report on Form 10-Q for the quarter ended September 30, 2009.</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">(20)</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Incorporated by reference to the comparable exhibit filed with the Company's Current Report on Form 8-K, for the event dated July 31, 2009, filed August 3, 2009.</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">(21)</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Incorporated by reference to the comparable exhibit filed with the Company's Current Report on Form 8-K, for the event dated August 12, 2009, filed August 18, 2009.&#9;</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">(22)</P>
<P ALIGN="JUSTIFY">(23)</P>
<P ALIGN="JUSTIFY"></FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Filed as an exhibit to the Original Filing.</P>
<P ALIGN="JUSTIFY">Filed herewith.</FONT></TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">(*)</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Denotes Management Compensation Plan, agreement or arrangement.&#9;</FONT></TD>
</TR>
</TABLE>
</CENTER></P>

<B><FONT SIZE=2><P ALIGN="JUSTIFY"></P>
</B></FONT><P ALIGN="CENTER">Page 7</P>
<B><FONT SIZE=2><P ALIGN="JUSTIFY"></P>
<P ALIGN="JUSTIFY">&nbsp;</P>
</B><P ALIGN="JUSTIFY"> </P>
<P ALIGN="JUSTIFY"></P>
<P ALIGN="JUSTIFY">&nbsp;</P>
</FONT><B><P ALIGN="CENTER">SIGNATURES</P>
</B><FONT SIZE=2><P ALIGN="JUSTIFY"></P>
<P ALIGN="JUSTIFY">Pursuant to the requirements of Section 13 or 15 (d) of the Securities Exchange Act of 1934, the registrant caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.</P>
<P ALIGN="JUSTIFY"></P>
<P ALIGN="JUSTIFY">&nbsp;</P>
<P ALIGN="JUSTIFY">&nbsp;</P>
<P ALIGN="JUSTIFY">&nbsp;</P></FONT>
<P ALIGN="RIGHT"><TABLE BORDER=0 CELLSPACING=0 CELLPADDING=0 WIDTH=445 DIR="LTR">
<TR><TD VALIGN="TOP" COLSPAN=2>
<B><FONT SIZE=2><P ALIGN="JUSTIFY">HUDSON TECHNOLOGIES, INC.</B></FONT></TD>
</TR>
<TR><TD WIDTH="18%" VALIGN="TOP">&nbsp;</TD>
<TD WIDTH="82%" VALIGN="TOP">&nbsp;</TD>
</TR>
<TR><TD WIDTH="18%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">By:</FONT></TD>
<TD WIDTH="82%" VALIGN="TOP">
<U><FONT SIZE=2><P ALIGN="JUSTIFY">/s/ Kevin J. Zugibe</U></FONT></TD>
</TR>
<TR><TD WIDTH="18%" VALIGN="TOP">&nbsp;</TD>
<TD WIDTH="82%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Kevin J. Zugibe, Chairman and Chief Executive Officer</FONT></TD>
</TR>
</TABLE>
</P>

<FONT SIZE=2><P ALIGN="JUSTIFY"></P>
<B><P ALIGN="JUSTIFY">&nbsp;</P></B></FONT>
<P ALIGN="CENTER"><CENTER><TABLE CELLSPACING=0 BORDER=0 CELLPADDING=0 WIDTH=655 DIR="LTR">
<TR><TD WIDTH="9%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">Date:</FONT></TD>
<TD WIDTH="91%" VALIGN="TOP">
<FONT SIZE=2><P ALIGN="JUSTIFY">June 18, 2010</FONT></TD>
</TR>
</TABLE>
</CENTER></P>

<FONT SIZE=2><P ALIGN="JUSTIFY"></P>
<P ALIGN="JUSTIFY">&nbsp;</P>
<P ALIGN="JUSTIFY">&nbsp;</P>
<P ALIGN="JUSTIFY">&nbsp;</P>
<P ALIGN="JUSTIFY">&nbsp;</P>
<P ALIGN="JUSTIFY">&nbsp;</P>
</FONT><P ALIGN="CENTER">Page 8</P></BODY>
</HTML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-31.1
<SEQUENCE>2
<FILENAME>k10a_2009-ex311.htm
<DESCRIPTION>EXHIBIT 31.1
<TEXT>
<HTML>
<HEAD>

<TITLE>Exhibit 31.1</TITLE>
</HEAD>
<BODY>

<B><FONT SIZE=3><P>Exhibit 31.1:</P>
</B></FONT><FONT SIZE=2>
<B><P ALIGN="CENTER">Hudson Technologies, Inc. </P>
<P ALIGN="CENTER">Certification of Principal Executive Officer</P>
</B><P ALIGN="CENTER"></P>
<P>I, Kevin J. Zugibe, certify that:</P>
</FONT>
<TABLE CELLSPACING=0 BORDER=0 CELLPADDING=0 WIDTH=734 DIR="LTR">
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P>1.</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P>I have reviewed this Annual Report on Form 10-K/A of Hudson Technologies, Inc.;</FONT></TD>
</TR>
<TR><TD VALIGN="TOP" COLSPAN=2>&nbsp;</TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P>2.</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P>Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report.</P>
</FONT></TD>
</TR>
<TR><TD VALIGN="TOP" COLSPAN=2>
<FONT SIZE=2><P>&nbsp;</P>
<P>Date:&#9; June 18, 2010</P>

<P>&nbsp;</P>
<P>&nbsp;</P>
<U><P>/s/ Kevin J. Zugibe</P>

</U><P>Kevin J. Zugibe</P>
<U>
</U><P>Chief Executive Officer and </P>
<U>
</U><P>Chairman of the Board</P>
<U>
</U><P>&nbsp;</FONT></TD>
</TR>
</TABLE>

<FONT SIZE=2><P>&nbsp;</P></FONT></BODY>
</HTML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-31.2
<SEQUENCE>3
<FILENAME>k10a_2009-ex312.htm
<DESCRIPTION>EXHIBIT 31.2
<TEXT>
<HTML>
<HEAD>

<TITLE>Exhibit 31.2</TITLE>
</HEAD>
<BODY>

<B><FONT SIZE=3><P>Exhibit 31.2:</P>
</B></FONT><FONT SIZE=2>
<B><P ALIGN="CENTER">Hudson Technologies, Inc. </P>
<P ALIGN="CENTER">Certification of Principal Executive Officer</P>
</B><P ALIGN="CENTER"></P>
<P>&nbsp;</P>
<P>I, James R. Buscemi, certify that:</P>
</FONT>
<TABLE CELLSPACING=0 BORDER=0 CELLPADDING=0 WIDTH=734 DIR="LTR">
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P>1.</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P>I have reviewed this Annual Report on Form 10-K/A of Hudson Technologies, Inc.;</FONT></TD>
</TR>
<TR><TD VALIGN="TOP" COLSPAN=2>&nbsp;</TD>
</TR>
<TR><TD WIDTH="8%" VALIGN="TOP">
<FONT SIZE=2><P>2.</FONT></TD>
<TD WIDTH="92%" VALIGN="TOP">
<FONT SIZE=2><P>Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report. </P>
</FONT></TD>
</TR>
<TR><TD VALIGN="TOP" COLSPAN=2>
<FONT SIZE=2><P>&nbsp;</P>
<P>Date:&#9;June 18, 2010</P>

<P>&nbsp;</P>
<P>&nbsp;</P>
<U><P>/s/ James R. Buscemi</P>

</U><P>James R. Buscemi</P>
<U>
</U><P>Chief Financial Officer </P>
<U>
</U><P>&nbsp;</FONT></TD>
</TR>
</TABLE>

<FONT SIZE=2><P>&nbsp;</P>
</FONT><B><P>&nbsp;</P>
</B><FONT SIZE=2><P>&nbsp;</P></FONT></BODY>
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</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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