Hudson Technologies Inc.

Kevin Zugibe founder of the Company, has been Chairman of the Board and Chief Executive Officer of the Company since its inception in 1991. From May 1987 to May 1994, Mr. Zugibe was employed as a power engineer with Orange and Rockland Utilities, Inc., a major public utility, where he was responsible for all HVAC applications. Mr. Zugibe is a licensed professional engineer, and from December 1990 to May 1994, he was a member of Kevin J. Zugibe & Associates, a professional engineering firm. Mr. Zugibe is the brother-in-law of Stephen P. Mandracchia.

Brian Coleman has been President and Chief Operating Officer of the Company since August 21, 2001 and served as Chief Financial Officer of the Company from May 1997 until December 2002. From June 1987 to May 1997, Mr. Coleman was employed by, and from July 1995 to May 1997, was a partner with BDO Seidman, LLP, the Company's independent auditors.

James Buscemi has been Chief Financial Officer of the Company since December 2002 and served as Corporate Controller since coming to the Company in June 1998. Prior to joining the Company, Mr. Buscemi held various financial positions within Avnet, Inc, including Chief Financial Officer of Avnet's electric motors and component part subsidiary, Brownell Electro, Inc.

Mr. Harkins has been Vice President of Sales of the Company since December 2003. Mr. Harkins served as Vice President of Refrigerant Product Services (“RPS”) from October 2000 to December 2003 and has served in a variety of capacities since joining the Company in 1992. Prior to joining the Company, Mr. Harkins served in the U.S. Army for 13 years attaining the rank of Staff Sergeant; he is a graduate of the U.S. Army Engineer School and the U.S. Army Chemical School.

Stephen Mandracchia has been Vice President Legal and Regulatory of the Company since August 2003 and has been Secretary of the Company since April 1995. Mr. Mandracchia has served in a variety of capacities with the Company since 1993 including from November 2000 to August 2003 as Vice President of Operations. Mr. Mandracchia was a member of the law firm of Martin, Vandewalle, Donohue, Mandracchia & McGahan, Great Neck, New York until December 31, 1995 (having been affiliated with such firm since August 1983). Mr. Mandracchia is the brother in-law of Mr. Zugibe.

Mr. Papar received his Master of Science (ME) from the University of Maryland and Bachelor of Technology (ME) from the Indian Institute of Technology, Mumbai. He is a Registered Professional Engineer and a Certified Energy Manager. He is also a certified DOE Steam BestPractices End-User Training Instructor and a DOE Qualified Steam System Specialist. Mr. Papar specializes in Performance Monitoring & Optimization of Energy Systems to reduce operating costs and environmental emissions. He has 12+ years of Industrial Energy infrastructure experience and BestPractices for Energy Asset Management. Prior to Hudson Technologies, Mr. Papar has worked for Enron Energy Services, Lawrence Berkeley Labs, Energy Concepts Company and as an independent Energy Consultant.

Dominic Monetta has been a director of the Company since April 1996. Since August 1993, Mr. Monetta has been the President of Resource Alternatives, Inc., a corporate development firm concentrating on solving management and technological problems facing chief executive officers and their senior executives. From December 1991 to May 1993, Mr. Monetta served as the Director of Defense Research and Engineering for the Research and Advanced Technology Office of the United States Department of Defense. From June 1989 to December 1991, Mr. Monetta served as the Director of the Office of New Production Reactors of the United States Department of Energy.

Otto Morch has been a director of the Company since March 1996. Mr. Morch was a Senior Vice President of Commercial Banking at Provident Savings Bank, F.A. for more than five years until his retirement in December 1997.

Bob Burr has been a Director of the Company since August 1999. Mr. Burr has been a Partner of Windcrest Discovery Investments LLC, an investment management firm, from its inception in February 2002 and since October 2001 has a consulting agreement with J.P. Morgan Partners under which he is the lead partner of Fleming US Discovery Partners, L.P., a private equity sponsor affiliated with J.P. Morgan Chase & Co. Fleming US Discovery Partners, L.P. is the general partner of Fleming US Discovery Fund III, L.P. and Fleming US Discovery Offshore Fund III, L.P. Mr. Burr was employed by J. P. Morgan Chase & Co. from July 1995 to October 2001. From 1992 to 1995, Mr. Burr was head of Private Equity at Kidder, Peabody & Co., Inc. Previously, Mr. Burr served as the Managing General Partner of Morgan Stanley Ventures and General Partner of Morgan Stanley Venture Capital Fund I, L.P. and was a corporate lending officer with Citibank, N.A. Mr. Burr serves on the Board of Directors of Displaytech, Inc. and Impax Laboratories, Inc.

Vincent P. Abbatecola has been a Director of the Company since June 1994. Mr. Abbatecola is Vice President of Abbey Ice & Spring Water Company, Spring Valley, New York, where he has been employed since May 1971. He is Past Chairman of the International Packaged Ice Association. Mr. Abbatecola is a Trustee of Nyack Hospital, and a board member of the Rockland Business Association and the Rockland Board of Governors. Mr. Abbatecola also serves on the Union State Bank and St. Thomas Aquinas President's Councils.