HUDSON TECHNOLOGIES INC /NY - Annual Report: 2010 (Form 10-K)

[X] ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

OR

[ ] TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from ____________ to ____________

Securities registered pursuant to Section 12(b) of the Act:

Securities registered pursuant to Section 12(g) of the Act: None

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act [  ] Yes [x] No

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or 15(d) of the Exchange Act [  ] Yes [x] No

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. [X] Yes [  ] No

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). [  ] Yes [  ] No

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. [  ]

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.

Large accelerated filer [  ] Accelerated filer [  ]Non-accelerated filer [  ] (Do not check if a smaller reporting company) Smaller reporting company [x]

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act). [  ] Yes [X] No

The aggregate market value of registrant's common stock held by non-affiliates at June 30, 2010 was approximately $27,552,760. As of February 26, 2011 there were 23,780,606 shares of the registrant's common stock outstanding.

Documents incorporated by reference: None

Hudson Technologies, Inc., incorporated under the laws of New York on January 11, 1991, is a refrigerant services company providing innovative solutions to recurring problems within the refrigeration industry. The Company's products and services are primarily used in commercial air conditioning, industrial processing and refrigeration systems, and include (i) refrigerant sales, (ii) refrigerant management services consisting primarily of reclamation of refrigerants and (iii) RefrigerantSide® Services performed at a customer's site, consisting of system decontamination to remove moisture, oils and other contaminants. In addition, RefrigerantSide® Services include predictive and diagnostic services for industrial and commercial refrigeration applications, which are designed to predict potential catastrophic problems and identify inefficiencies in an operating system. The Company's Chiller Chemistry®, Chill Smart®, Fluid Chemistry® and Performance Optimization are predictive and diagnostic service offerings. The Company operates through its wholly-owned subsidiary, Hudson Technologies Company. Unless the context requires otherwise, references to the "Company", "Hudson", "we", "us", "our", or similar pronouns refer to Hudson Technologies, Inc. and its subsidiaries.

The Company's executive offices are located at One Blue Hill Plaza, Pearl River, New York and its telephone number is (845) 735-6000.

The production and use in the United States of refrigerants containing hydrochlorofluorocarbons ("HCFC"), the most commonly used refrigerants, and chlorofluorocarbons ("CFC") are subject to extensive and changing regulation under the Clean Air Act, as amended (the "Act"). The Act, which was amended in 1990 in response to evidence linking damage to the earth's ozone layer to the use of CFC and HCFC refrigerants, prohibits any person in the course of maintaining, servicing, repairing and disposing of air conditioning or refrigeration equipment, to knowingly vent or otherwise release or dispose of ozone depleting substances used as refrigerants. That prohibition also applies to substitute, non-ozone depleting refrigerants, such as Hydrofluorocarbon ("HFC"). The Act also requires the recovery of all refrigerants used in residential, commercial and industrial air conditioning and refrigeration systems, and, effective January 1, 1996, prohibited production of virgin (new) CFC refrigerants and limited the production of virgin (new) HCFC refrigerants. Effective January 2004, the Act further limited the production of virgin HCFC refrigerants, and federal regulations were enacted which impose limitations on the importation of certain virgin HCFC refrigerants. Additionally, effective January 2010 the Act further limited the production of HCFC refrigerants and additional federal regulations were enacted which imposed further limitations on the use, production and importation of certain virgin HCFC refrigerants. Under the Act, production of certain virgin HCFC refrigerants is scheduled to be phased out by the year 2020, and production of all HCFC refrigerants is scheduled to be phased out by 2030. Under the Act, owners, operators and companies servicing cooling equipment are responsible for the integrity of the systems, regardless of the refrigerant being used, and for the responsible management of refrigerant.

HFC refrigerants are used as substitutes for CFC and HCFC refrigerants in certain applications. As a result of the increasing restrictions and limitations on the production and use of CFC and HCFC refrigerants, various segments of the air conditioning and refrigeration industry have been replacing or modifying equipment that utilize CFC and HCFC refrigerants and have been transitioning to equipment that utilizes HFC refrigerants. HFC refrigerants are not ozone depleting chemicals and are not currently regulated under the Act. However, HFC refrigerants are highly weighted greenhouse gases that are believed to contribute to global warming and, as a result, are now subject to various state and federal regulations relating to the sale, use and emissions of HFC refrigerants. In addition, federal legislation has been proposed that, if enacted, would impose limitations on the production and importation of certain virgin HFC refrigerants.

The Act, and the federal regulations enacted under authority of the Act, have mandated and/or promoted responsible use practices in the air conditioning and refrigeration industry, which are intended to minimize the release of refrigerants into the atmosphere and encourage the recovery and re-use of refrigerants. In addition to prohibiting the venting of CFC and HCFC refrigerants, and prohibiting and/or phasing down the production of CFC and HCFC refrigerants, the Act mandates the recovery of these refrigerants and also promotes and encourages re-use and reclamation of CFC and HCFC refrigerants. Since January 1996, when virgin CFC production became prohibited, nearly the entire service demand for CFC refrigerants in existing equipment has been met through the recovery and the reclamation of used CFC refrigerants by the United States Environmental Protection Agency ("EPA") certified reclaimers. In addition, effective January 2010, EPA regulations limited the total pounds of virgin HCFC refrigerants that can be produced and imported to levels which, based upon the EPA's estimates, will require as much as 20% of the service demand for existing equipment to be met by reclaimed or recycled HCFC refrigerants, with that percentage increasing through 2014.

From its inception, the Company has sold refrigerants, and has provided refrigerant reclamation and management services that are designed to recover and reuse refrigerants, thereby protecting the environment from release to the atmosphere and the corresponding ozone depletion. The reclamation process allows the refrigerant to be re-used thereby eliminating the need to destroy or manufacture additional refrigerant and eliminating the corresponding impact to the environment associated with the destruction and manufacturing. The Company believes it is the largest refrigerant reclaimer in the United States. Additionally, the Company has created alternative solutions to reactive and preventative maintenance procedures that are performed on commercial and industrial refrigeration systems. These services, known as RefrigerantSide® Services, compliment the Company's refrigerant sales and refrigerant reclamation and management services. The Company has also developed Performance Optimization services that identify inefficiencies in the operation of air conditioning and refrigeration systems and assists companies to improve the efficiency of their systems and save energy. In addition, the Company is pursuing potential opportunities for the creation and monetization of verified emission reductions. See "Emission Reductions".

The Company sells reclaimed and virgin (new) refrigerants to a variety of customers in various segments of the air conditioning and refrigeration industry. Virgin, non-CFC refrigerants, including HCFC and HFC refrigerants, are purchased by the Company from several suppliers and resold by the Company, typically at wholesale. The Company continues to sell reclaimed CFC based refrigerants, which are no longer manufactured. The Company regularly purchases used or contaminated refrigerants, some of which are CFC based, from many different sources, which refrigerants are then reclaimed using the Company's high speed proprietary reclamation equipment, its patented Zugibeast® system, and then are resold by the Company.

The Company provides a complete offering of refrigerant management services, which primarily include reclamation of refrigerants, laboratory testing through the Company's laboratory, which has been certified by the Air Conditioning, Heating and Refrigeration Institute, formerly the Air Conditioning and Refrigeration Institute ("ARI"), and banking (storage) services tailored to individual customer requirements. Hudson also separates "crossed" (i.e. commingled) refrigerants and provides re-usable cylinder repair and hydrostatic testing services.

The Company provides decontamination and recovery services that are performed at a customer's site through the use of portable, high volume, high-speed proprietary equipment, including the patented Zugibeast® system. Certain of these RefrigerantSide® Services, which encompass system decontamination, and refrigerant recovery and reclamation are also proprietary and are covered by process patents.

In addition to the decontamination and recovery services previously described, the Company also provides predictive and diagnostic services for its customers. The Company offers diagnostic services that are intended to predict potential problems in air conditioning and refrigeration systems before they occur. The Company's Chiller Chemistry® offering integrates several fluid tests of an operating system and the corresponding laboratory results into an engineering report providing its customers with an understanding of the current condition of the fluids, the cause for any abnormal findings and the potential consequences if the abnormal findings are not remediated. Fluid Chemistry®, an abbreviated version of, the Company's Chiller Chemistry® offering, is designed to quickly identify systems that require further examination. ChillSmart® combines the diagnostic information of Chiller Chemistry® with a detailed performance evaluation for an operating refrigeration system and recommendations for eliminating any inefficiencies that may have been discovered.

The Company has been awarded several United States patents for its Performance Optimization System, which is a system for measuring, modifying and improving the efficiency of energy systems, including air conditioning and refrigeration systems, in industrial and commercial applications. Hudson's Performance Optimization Services are able to identify specific inefficiencies in the operation of refrigeration systems and, when used with Hudson's RefrigerantSide® Services, can increase the efficiency of the operating systems thereby reducing energy usage and costs. These inefficiencies require power generating companies to produce more energy and, in many instances increase carbon dioxide ("CO₂") emissions to produce the excess energy. Consequently, not only is Hudson's reclamation system a direct benefit to the environment, but Hudson's Performance Optimization Services recommendations are also designed to achieve an overall reduction in CO₂ emissions. The Company's Performance Optimization System can be customized to a particular customer's refrigeration system, such as at an industrial facility that utilizes refrigeration in its manufacturing processes, or offered as a stand alone product that can be used with air conditioning and packaged refrigeration systems, such as a comfort cooling application in large office buildings. When the Company combines it Performance Optimization System with its Chiller Chemistry® the Company calls this combined offering ChillSmart®.

The Company also performs Energy Savings Assessments ("ESAs") for process and utility systems utilizing a methodology based on the 2009 ASME/ANSI Energy Assessment Standards. The Company's engineering staff performs ESAs at a customer's site, which staff includes an expert certified to provide best-practices training for the U.S. Department of Energy ("DOE") and the United Nations Industrial Development Organization ("UNIDO"). The Company can perform ESA's on a variety of process and utility systems including: steam; refrigeration and process cooling; process heating; waste heat recovery; combined heat and power pumps; compressed air; and fuel switching.

CFC refrigerants are ozone depleting substances and are also highly-weighted greenhouse gases that contribute to global warming. The destruction of CFC refrigerants may be eligible for verified emission reductions that can be converted and monetized into carbon offset credits that may be traded in the emerging carbon offset markets. The Company is pursuing opportunities to acquire CFC refrigerants and is developing relationships within the emerging environmental markets in order to develop opportunities for the creation and monetization of verified emission reductions from the destruction of CFC refrigerants.

Hudson operates from a network of facilities located in:

The Company believes that the international market for refrigerant reclamation, sales and services is equal in size to the United States market for those sales and services. Over time, the Company expects to introduce its technology and offerings to several geographies around the world.

In 2003, the Company entered into an exclusive global technology and marketing agreement with The Linde Group ("Linde"), formerly the BOC Group, by which the Company licensed its RefrigerantSide® Services technology to Linde. As contemplated by the global agreement, which expired in 2010, the Company entered into separate supplemental agreements with Linde affiliate companies covering the United Kingdom and the Republic of South Africa, pursuant to which the Company licensed its RefrigerantSide® Services technology and the use of its related proprietary equipment to each Linde affiliate in return for (i) a license fee payable to the Company by the Linde affiliate in annual installments during the course of such supplemental agreement and (ii) royalty payments to the Company based on revenues derived by the Linde affiliate from the performance of RefrigerantSide® Services and other sales licensed from the Company. The Company's revenues generated by supplemental agreements have not been material to the Company's financial performance and are not expected to be material in future periods.

In January 2010, the Company entered into a strategic alliance agreement with EOS Climate, Inc. ("EOS"), which is a provider of technology and services related to the destruction or mitigation of ozone-depleting substances in order to generate verified emissions reductions for sale in emerging environmental markets. Under the agreement, the Company and EOS have established an exclusive relationship pursuant to which the Company will supply certain CFC refrigerants to EOS, and EOS will utilize the Company to perform reclamation and recovery services for emissions reduction projects, and the parties will share any revenues generated from the monetization of verified emissions reductions. The agreement is worldwide in scope and provides for the granting of licenses by the Company to EOS to utilize the Company's equipment and technology in other countries in connection with emissions reductions projects. To date, the Company's revenues generated by the agreement have not been material to the Company's financial performance.

The Company's financial performance and its ability to sell refrigerants is in part dependent on its ability to obtain sufficient quantities of virgin, non-CFC based refrigerants, and of reclaimable CFC and non-CFC based, refrigerants from manufacturers, wholesalers, distributors, bulk gas brokers and from other sources within the air conditioning, refrigeration and automotive aftermarket industries, and on corresponding demand for refrigerants. The Company's refrigerant sales include CFC based refrigerants, which are no longer

manufactured. Additionally, the Company's refrigerant sales include non-CFC based refrigerants, including HCFC and HFC refrigerants, which are the most widely used refrigerants. Effective January 1, 1996, the Act limited the production of virgin HCFC refrigerants, which production was further limited in January 2004. Federal regulations enacted in January 2004 also imposed limitations on the importation of certain virgin HCFC refrigerants. In addition, effective January 2010, the Act further limited the production of virgin HCFC refrigerants and additional federal regulations were enacted which imposed further limitations on the use, production and importation of virgin HCFC refrigerants. Under the Act, production of certain virgin HCFC refrigerants is scheduled to be phased out by the year 2020 and production of all virgin HCFC refrigerants is scheduled to be phased out by the year 2030. The limitations imposed by and under the Act may limit supplies of virgin refrigerants for the foreseeable future or cause a significant increase in the price of virgin HCFC refrigerants.

The Company provides its services to commercial, industrial and governmental customers, as well as to refrigerant wholesalers, distributors, contractors and to refrigeration equipment manufacturers. Agreements with larger customers generally provide for standardized pricing for specified services.

For the years ended December 31, 2010 and 2009, no one customer accounted for more than 10% of the Company's revenues.

Marketing programs are conducted through the efforts of the Company's executive officers, Company sales personnel, and third parties. Hudson employs various marketing methods, including direct mailings, technical bulletins, in-person solicitation, print advertising, response to quotation requests and the internet through the Company's website (www.hudsontech.com). Information in the Company's website is not part of this report.

The Company's sales personnel are compensated on a combination of a base salary and commission. The Company's executive officers devote significant time and effort to customer relationships.

The Company competes primarily on the basis of the performance of its proprietary high volume, high-speed equipment used in its operations, the breadth of services offered by the Company, including proprietary RefrigerantSide® Services and other on-site services, and price, particularly with respect to refrigerant sales.

The Company competes with numerous regional and national companies that market reclaimed and virgin refrigerants and provide refrigerant reclamation services. Certain of these competitors possess greater financial, marketing, distribution and other resources for the sale and distribution of refrigerants than the Company and, in some instances, serve a more extensive geographic area than the Company.

Hudson's RefrigerantSide® Services provide new and innovative solutions to certain problems within the refrigeration industry and, as such, the demand and market acceptance for these services are subject to uncertainty. Competition for these services primarily consists of traditional methods of solving the industry's problems. The Company's marketing strategy is to educate the marketplace that its alternative solutions are available and that RefrigerantSide® Services are superior to traditional methods. The market acceptance for these services is subject to uncertainty.

The Company carries insurance coverage that it considers sufficient to protect the Company's assets and operations. The Company currently maintains general commercial liability insurance and excess liability coverage for claims up to $7,000,000 per occurrence and $8,000,000 in the aggregate. The Company attempts to operate in a professional and prudent manner and to reduce potential liability risks through specific risk management efforts, including ongoing employee training.

The refrigerant industry involves potentially significant risks of statutory and common law liability for environmental damage and personal injury. The Company, and in certain instances, its officers, directors and employees, may be subject to claims arising from the Company's on-site or off-site services, including the improper release, spillage, misuse or mishandling of refrigerants classified as hazardous or non-hazardous substances or materials. The Company may be held strictly liable for damages, which could be substantial, regardless of whether it exercised due care and complied with all relevant laws and regulations.

Hudson maintains environmental impairment insurance of $7,000,000 per occurrence, and $8,000,000 annual aggregate, for events occurring subsequent to November 1996.

The business of refrigerant sales, reclamation and management is subject to extensive, stringent and frequently changing federal, state and local laws and substantial regulation under these laws by governmental agencies, including the EPA, the United States Occupational Safety and Health Administration and the United States Department of Transportation.

Among other things, these regulatory authorities impose requirements which regulate the handling, packaging, labeling, transportation and disposal of hazardous and non-hazardous materials and the health and safety of workers, and require the Company and, in certain instances, its employees, to obtain and maintain licenses in connection with its operations. This extensive regulatory framework imposes significant compliance burdens and risks on the Company.

Hudson and its customers are subject to the requirements of the Act, and the regulations promulgated thereunder by the EPA, which make it unlawful for any person in the course of maintaining, servicing, repairing, and disposing of air conditioning or refrigeration equipment, to knowingly vent or otherwise release or dispose of ozone depleting substances, and non-ozone depleting substitutes, used as refrigerants.

Pursuant to the Act, reclaimed refrigerant must satisfy the same purity standards as newly manufactured, virgin, refrigerants in accordance with standards established by ARI prior to resale to a person other than the owner of the equipment from which it was recovered. The EPA administers a certification program pursuant to which applicants certify to reclaim refrigerants in compliance with ARI standards. The Company is one of only three certified refrigerant testing laboratories under ARI's laboratory certification program, which is a voluntary program that certifies the ability of a laboratory to test refrigerant in accordance with the ARI 700 standard.

In addition, the EPA has established a mandatory certification program for air conditioning and refrigeration technicians. Hudson's technicians have applied for or obtained such certification.

The Company may also be subject to regulations adopted by the EPA which impose certain reporting requirements arising out of the purchase, production, use and/or emissions of certain greenhouse gases, including HFC's.

The Company is also subject to regulations adopted by the United States Department of Transportation which classify most refrigerants handled by the Company as hazardous materials or substances and imposes requirements for handling, packaging, labeling and transporting refrigerants and which regulate the use and operation of the Company's commercial motor vehicles used in the Company's business.

The Resource Conservation and Recovery Act of 1976, as amended ("RCRA") requires facilities that treat, store or dispose of hazardous wastes to comply with certain operating standards. Before transportation and disposal of hazardous wastes off-site, generators of such waste must package and label their shipments consistent with detailed regulations and prepare a manifest identifying the material and stating its destination. The transporter must deliver the hazardous waste in accordance with the manifest to a facility with an appropriate RCRA permit. Under RCRA, impurities removed from refrigerants consisting of oils mixed with water and other contaminants are not presumed to be hazardous waste.

The Emergency Planning and Community Right-to-Know Act of 1986, as amended requires the annual reporting by the Company of Emergency and Hazardous Chemical Inventories (Tier II reports) to the various states in which the Company operates and requires the Company to file annual Toxic Chemical Release Inventory Forms with the EPA.

The Comprehensive Environmental Response, Compensation and Liability Act of 1980 ("CERCLA"), establishes liability for clean-up costs and environmental damages to current and former facility owners and operators, as well as persons who transport or arrange for transportation of hazardous substances. Almost all states have similar statutes regulating the handling and storage of hazardous substances, hazardous wastes and non-hazardous wastes. Many such statutes impose requirements that are more stringent than their federal counterparts. The Company could be subject to substantial liability under these statutes to private parties and government entities, in some instances without any fault, for fines, remediation costs and environmental damage, as a result of the mishandling, release, or existence of any hazardous substances at any of its facilities.

The Occupational Safety and Health Act of 1970, as amended mandates requirements for a safe work place for employees and special procedures and measures for the handling of certain hazardous and toxic substances. State laws, in certain circumstances, mandate additional measures for facilities handling specified materials.

The Company believes that it is in compliance with all material regulations relating to its material business operations.

The Company utilizes in-house quality and regulatory compliance control procedures. Hudson maintains its own analytical testing laboratory, which is ARI certified, to assure that reclaimed refrigerants comply with ARI purity standards and employs portable

testing equipment when performing on-site services to verify certain quality specifications. The Company employs five persons engaged full-time in quality control and to monitor the Company's operations for regulatory compliance.

The Company has 77 full and 2 part time employees including air conditioning and refrigeration technicians, chemists, engineers, sales and administrative personnel.

None of the Company's employees are represented by a union. The Company believes that its employee relations are good.

The Company holds a United States patent and eight foreign patents covering seventeen foreign countries and has patent applications pending in two other foreign countries, all relating to the high-speed equipment, components and process to reclaim refrigerants. The Company also holds a registered trademark for its Zugibeast®. The United States patent expires in January 2012 and the foreign patents will expire between May 2014 and December 2014. The Company also holds several U.S. and foreign patents related to certain RefrigerantSide® Services developed by the Company as well as for certain processes to measure and improve the efficiency of refrigeration systems. These patents will expire between February 2017 and December 2020.

The Company believes that patent protection is important to its business. There can be no assurance as to the breadth or degree of protection that patents may afford the Company, that any patent applications will result in issued patents or that patents will not be circumvented or invalidated. Technological development in the refrigerant industry may result in extensive patent filings and a rapid rate of issuance of new patents. Although the Company believes that its existing patents and the Company's equipment do not and will not infringe upon existing patents or violate proprietary rights of others, it is possible that the Company's existing patent rights may not be valid or that infringement of existing or future patents or violations of proprietary rights of others may occur. In the event the Company's equipment or processes infringe, or are alleged to infringe, patents or other proprietary rights of others, the Company may be required to modify the design of its equipment or processes, obtain a license or defend a possible patent infringement action. There can be no assurance that the Company will have the financial or other resources necessary to enforce or defend a patent infringement or proprietary rights violation action or that the Company will not become liable for damages.

The Company also relies on trade secrets and proprietary know-how, and employs various methods to protect its technology. However, such methods may not afford complete protection and there can be no assurance that others will not independently develop such know-how or obtain access to the Company's know-how, concepts, ideas and documentation. Failure to protect its trade secrets could have a material adverse effect on the Company.

There are many important factors that have affected, and in the future could affect Hudson's business including, but not limited to, the factors discussed below, which should be reviewed carefully together with the other information contained in this report. Some of the factors are beyond Hudson's control and future trends are difficult to predict.

Our existing credit facility, which currently expires in June 2011, is secured by substantially all of our assets and contains formulas that limit the amount of our borrowings under the facility. Moreover, the terms of our credit facility also include negative covenants that, among other things, may limit our ability to incur additional indebtedness. In June 2009 and April 2010 the Company obtained waivers from the lender for violations of one of its loan covenants. If we violate any of these loan covenants and do not obtain a waiver from our lender, our indebtedness under the credit facility would become immediately due and payable, and the lender could foreclose on its security, which could materially adversely affect our business and future financial condition and could require us to curtail or otherwise cease our existing operations.

Our capital requirements have been and may be significant in the future. In the future, we may incur additional expenses in the development and implementation of our operations. Due to fluctuations in the price, demand and availability of new refrigerants, our existing credit facility that expires in June 2011 may not in the future be sufficient to provide all of the capital that we need to acquire and manage our inventories of new refrigerant. As a result, we may be required to seek additional equity or debt financing in order to develop our RefrigerantSide® Services business our refrigerant sales business and our other businesses. We have no current arrangements with respect to, or sources of, additional financing other than our existing credit facility. There can be no assurance that we will be able to renew this credit facility or obtain any additional financing on terms acceptable to us or at all. Our inability to obtain financing, if and when needed, could materially adversely affect our business and future financial condition and could require us to curtail or otherwise cease our existing operations.

Our business could be negatively impacted by adverse weather or economic downturns. Weather is a significant factor in determining market demand for the refrigerants sold by us, and to a lesser extent, our RefrigerantSide® Services. Unusually cooler temperatures in the spring and summer in the markets served by us, tends to depress demand for, and price of, refrigerants we sell. Protracted periods of cooler than normal spring and summer weather could result in a substantial reduction in our sales which could adversely affect our financial position as well as our results of operations. An economic downturn could cause customers to postpone or cancel purchases of the Company's products or services. Either or both of these conditions could have severe negative implications to our business that may exacerbate many of the risk factors we identified in this report but not limited, to the following:

These conditions could reduce our liquidity and this could have a negative impact on our financial condition and results of operations.

These conditions could lower the demand and/or price for our product and services, which would have a negative impact on our results of operation.

The refrigerant recovery and reclamation industry involves potentially significant risks of statutory and common law liability for environmental damage and personal injury. We, and in certain instances, our officers, directors and employees, may be subject to claims arising from our on-site or off-site services, including the improper release, spillage, misuse or mishandling of refrigerants classified as hazardous or non-hazardous substances or materials. We may be strictly liable for damages, which could be substantial, regardless of whether we exercised due care and complied with all relevant laws and regulations. Our current insurance coverage may not be sufficient to cover potential claims, and adequate levels of insurance coverage may not be available in the future at a reasonable cost. A partially or completely uninsured claim against us, if successful and of sufficient magnitude would have a material adverse effect on our business and financial condition.

Our business and prospects are largely dependent upon continued regulation of the use and disposition of refrigerants. Changes in government regulations relating to the emission of refrigerants into the atmosphere could have a material adverse effect on us. Failure by government authorities to otherwise continue to enforce existing regulations or significant relaxation of regulatory requirements could also adversely affect demand for our services and products.

The refrigerant reclamation and management business is subject to extensive, stringent and frequently changing federal, state and local laws and substantial regulation under these laws by governmental agencies, including the EPA, the United States Occupational Safety and Health Administration and the United States Department of Transportation. Although we believe that we are in substantial compliance with all material regulations relating to our material business operations, amendments to existing statutes and regulations or adoption of new statutes and regulations which affect the marketing and sale of refrigerant could require us to continually alter our methods of operation and/or discontinue the sale of certain of our products resulting in costs to us that could be substantial. We may not be able, for financial or other reasons, to comply with applicable laws, regulations and permit requirements, particularly as we seek to enter into new geographic markets. Our failure to comply with applicable laws, rules or regulations or permit requirements could subject us to civil remedies, including substantial fines, penalties and injunctions, as well as possible criminal sanctions, which would, if of significant magnitude, materially adversely impact our operations and future financial condition.

The markets for our services and products are highly competitive. We compete with numerous regional and national companies which provide refrigerant recovery and reclamation services, as well as companies which market and deal in new and reclaimed alternative refrigerants, including certain of our suppliers, some of which possess greater financial, marketing, distribution and other resources than us. We also compete with numerous manufacturers of refrigerant recovery and reclamation equipment. Certain of these competitors have established reputations for success in the service of air conditioning and refrigeration systems. We may not be able to compete successfully, particularly as we seek to enter into new markets.

Refrigerant sales continue to represent a significant portion of our revenues. Therefore, our business is substantially dependent on the availability of both new and used refrigerants in large quantities, which may be affected by several factors including, without limitations; (i) commercial production and consumption limitations imposed by the Act and legislative limitations and ban on HCFC refrigerants; (ii) the ban on production of CFC based refrigerants under the Act; (iii) the proposed legislation which, if enacted, could impose limitations on production and consumption of HFC refrigerants; (iv) introduction of new refrigerants and air conditioning and refrigeration equipment; (v) price competition resulting from additional market entrants; (vi) changes in government regulation on the use and production of refrigerants; and (vii) reduction in demand for refrigerants. We do not maintain firm agreements with any of our suppliers of refrigerants and we do not hold allowances permitting us to purchase and import HCFC refrigerants abroad. Sufficient amounts of new and/or used refrigerants may not be available to us in the future, or may not be available on commercially reasonable terms. Additionally, we may be subject to price fluctuations, periodic delays or shortages of new and/or used refrigerants. Our failure to obtain and resell sufficient quantities of virgin refrigerants on commercially reasonable terms, or at all, or to obtain, reclaim and resell sufficient quantities of used refrigerants would have a material adverse effect on our operating margins and results of operations.

Refrigerants are considered to be strong greenhouse gases that are believed to contribute to global warming and are now subject to various state and federal regulations relating to the sale, use and emissions of refrigerants. In addition, federal legislation has been proposed that, if enacted, would impose limitations on the production and importation of certain virgin HFC refrigerants and current and future climate change or related legislation and/or regulations, may impose additional compliance burdens on us and on our customers and suppliers which could potentially result in increase administrative costs, decreased demand in the marketplace for our products, and/or increased costs for our supplies and products.

Our success is largely dependent upon the efforts of our Chief Executive Officer and Chairman. The loss of his services would have a material adverse effect on our business and prospects.

Our Certificate of Incorporation authorizes our Board of Directors to issue up to 5,000,000 shares of "blank check" preferred stock and to fix the rights, preferences, privileges and restrictions, including voting rights, of these shares, without further shareholder approval. The rights of the holders of our common stock will be subject to, and may be adversely affected by, the rights of holders of any additional preferred stock that may be issued by us in the future. Our ability to issue preferred stock without shareholder approval could have the effect of making it more difficult for a third party to acquire a majority of its voting stock, thereby delaying, deferring or preventing a change in control of us.

Our common stock is currently listed on the NASDAQ Capital Market. We must comply with numerous NASDAQ MarketPlace rules in order to continue the listing of our common stock on NASDAQ. There can be no assurance that we can continue to meet the rules required to maintain the NASDAQ listing of our common stock. If we are unable to maintain our listing on NASDAQ, the market liquidity of our common stock may be severely limited.

Currently, our officers and directors collectively own approximately 32% of our outstanding common stock. Accordingly, our officers and directors are in a position to significantly effect, and potentially fully control us and the election of our directors. There is no provision for cumulative voting for our directors.

Not Applicable

The Company's Auburn, Washington depot facility is located in a 3,000 square foot building leased from an unaffiliated third party at an annual rental of $25,000 pursuant to a month to month rental agreement.

The Company's Baton Rouge, Louisiana depot facility is located in a 3,600 square foot building leased from an unaffiliated third party at an annual rental of $27,000 pursuant to a month to month rental agreement.

The Company's Champaign, Illinois facility is located in a 48,000 square foot building, which was purchased by the Company in May 2005 for $999,999. The Company has financed the purchase with a 15 year amortizing loan in the amount of $945,000 with a balloon payment due on June 1, 2012. As of December 31, 2010, the Company has outstanding $705,000 under its mortgage and the annual real estate taxes on this facility are approximately $42,000.

The Company has established a second facility in Champaign, Illinois, which is located in a 60,000 square foot building. The building is leased from an unaffiliated third party at an annual rental of $234,000, pursuant to an arrangement expiring in December 2011.

The Company's Charlotte, North Carolina depot facility is located in an 8,500 square foot building leased from an unaffiliated third party at an annual rental of $60,000 pursuant to an agreement expiring in January 2013.

The Company's Orangeburg, New York depot facility is located in an 18,000 square foot building leased from an unaffiliated third party at an annual rental of $179,000 pursuant to an agreement expiring in June 2011.

The Company's headquarters are located in a 4,400 square foot building in Pearl River, New York. The building is leased from an unaffiliated third party at an annual rental of $107,000 pursuant to an agreement expiring in March 2013.

The Company's Pottsboro, Texas telemarketing facility is located in a 1,350 square foot building leased from an unaffiliated third party at an annual rental of $18,000 pursuant to an agreement expiring in August 2011.

The Company's Hampstead, New Hampshire telemarketing facility is located in a 1,600 square foot building leased from an unaffiliated third party at an annual rental of $22,000 pursuant to an agreement expiring in August 2012.

In addition to the above leases, the Company from time to time utilizes public warehouse space on a month to month basis. The Company typically enters into short-term leases for its facilities and whenever possible extends the expiration date of such leases. The Company believes that its insurance policies are adequate to protect the Company's property.

On April 1, 1999, the Company reported a release of approximately 7,800 lbs. of R-11 refrigerant (the "1999 Release"), at its former leased facility in Hillburn, NY (the "Hillburn Facility"), which the Company vacated in June 2006. A failed hose connection to one of the Company's outdoor storage tanks allowed liquid R-11 refrigerant ("R-11") to discharge from the tank into the concrete secondary containment area in which the subject tank was located.

Between April 1999 and May 1999, with the approval of the New York State Department of Environmental Conservation ("DEC"), the Company constructed and put into operation a remediation system to remove R-11 levels in the groundwater under and around the Hillburn Facility.

In September 2000, the Company signed an Order on Consent with the DEC, which was amended in May 2001, whereby the Company agreed to operate the remediation system and perform monthly testing at the Hillburn Facility until remaining groundwater contamination has been effectively abated. In July 2005, the DEC approved a modification of the Order on Consent to reduce the frequency of testing from monthly to quarterly. The Company is continuing to operate the remediation system pursuant to the approved modifications to that Order on Consent and, as of December 31, 2010, the Company has accrued, as an expense in its consolidated financial statements, the costs that the Company believes it will incur in connection with its compliance with the Order on Consent through December 31, 2012. There can be no assurance that additional testing will not be required or that the Company will not incur additional costs, and such costs in excess of the Company's estimate may have a material adverse effect on the Company financial condition or results of operations.

In May 2000, the Hillburn Facility, as a result of the 1999 Release, was nominated by the EPA for listing on the National Priorities List ("NPL") pursuant to CERCLA. The Company submitted opposition to the listing within the sixty-day comment period. In

September 2003, the EPA advised the Company that it has no current plans to finalize the process for listing of the Hillburn Facility on the NPL and that the EPA will not withdraw the proposal for listing on the NPL.

In October 2001, the Company learned that trace levels of R-11 were detected in one of the wells operated by United Water of New York, Inc. ("United") that is in the closest proximity to the Village of Suffern's ("Village") well system. No contamination of R-11 has ever been detected in any of the Village's wells and, since October 2002, the level of R-11 in the United well closest to the Village has been below 1 ppb. In September 2004, the Village advised that it intends to continue performing additional sampling of its wells at a cost of approximately $5,000 per year and the Company has reimbursed the Village for sampling costs through September 2005.

The Company has exhausted all insurance proceeds available for the 1999 Release under all applicable policies.

During the years ended December 31, 2010 and 2009, the Company incurred $72,000 and $76,000, respectively, in additional remediation costs in connection with the matters above. There can be no assurance that the 1999 Release will not impact the Village wells, or that the ultimate outcome of the 1999 Release will not have a material adverse effect on the Company's financial condition and results of operations. There can be no assurance that the EPA will not change its current plans and seek to finalize the process of listing the Hillburn Facility on the NPL, or that the ultimate outcome of such a listing will not have a material adverse effect on the Company's financial condition and results of operations.

The Company's common stock trades on the NASDAQ Capital Market under the symbol "HDSN". The following table sets forth, for the periods indicated, the range of the high and low sale prices for the Common stock as reported by NASDAQ.

The number of record holders of the Company's common stock was approximately 170 as of February 26, 2011. The Company believes that there are in excess of 2,400 beneficial owners of its common stock.

To date, the Company has not declared or paid any cash dividends on its common stock. The payment of dividends, if any, in the future is within the discretion of the Board of Directors and will depend upon the Company's earnings, its capital requirements and financial condition, borrowing covenants, and other relevant factors. The Company presently intends to retain all earnings, if any, to finance the Company's operations and development of its business and does not expect to declare or pay any cash dividends on its Common stock in the foreseeable future. In addition, the Company has a credit facility with Keltic Financial Partners, LLP ("Keltic") that, among other things, restricts the Company's ability to declare or pay any cash dividends on its capital stock.

See Item 12 for certain information with respect to the Company's equity compensation plans as of December 31, 2010.

Not applicable

Certain statements contained in this section and elsewhere in this Form 10-K constitute "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995. Such forward-looking statements involve a number of known and unknown risks, uncertainties and other factors which may cause the actual results, performance or achievements of the Company to be materially different from any future results, performance or achievements expressed or implied by such forward-looking statements. Such factors include, but are not limited to, changes in the demand and price for refrigerants (including unfavorable market conditions adversely affecting the demand for, and the price of refrigerants), the Company's ability to source CFC and non-CFC based refrigerants, regulatory and economic factors, seasonality, competition, litigation, the nature of supplier or customer arrangements that become available to the Company in the future, adverse weather conditions, possible technological obsolescence of existing products and services, possible reduction in the carrying value of long-lived assets, estimates of the useful life of its assets, potential environmental liability, customer concentration, the ability to obtain financing, and other risks detailed in this report and in the Company's other periodic reports filed with the Securities and Exchange Commission ("SEC"). The words "believe", "expect", "anticipate", "may", "plan", "should" and similar expressions identify forward-looking statements. Readers are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date the statement was made.

The Company's discussion and analysis of its financial condition and results of operations are based upon its consolidated financial statements, which have been prepared in accordance with accounting principles generally accepted in the United States. The preparation of these consolidated financial statements requires the Company to make estimates and judgments that affect the reported amounts of assets, liabilities, revenues and expenses and related disclosure of contingent assets and liabilities. Several of the Company's accounting policies involve significant judgments, uncertainties and estimations. The Company bases its estimates on historical experience and on various other assumptions that are believed to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities. Actual results may differ from these estimates under different assumptions or conditions. To the extent that actual results differ from management's judgments and estimates, there could be a material adverse effect on the Company. On a continuous basis, the Company evaluates its estimates, including, but not limited to, those estimates related to its allowance for doubtful accounts, inventory reserves, and valuation allowance for the deferred tax assets relating to its net operating loss carryforwards ("NOLs") and commitments and contingencies. With respect to accounts receivable, the Company estimates the necessary allowance for doubtful accounts based on both historical and anticipated trends of payment history and the ability of the customer to fulfill its obligations. For inventory, the Company evaluates both current and anticipated sales prices of its products to determine if a write down of inventory to net realizable value is necessary. In determining the Company's valuation allowance for its deferred tax assets, the Company assesses its ability to generate taxable income in the future. The Company utilizes both internal and external sources to evaluate potential current and future liabilities for various commitments and contingencies. In the event that the assumptions or conditions change in the future, the estimates could differ from the original estimates.

Sales of refrigerants continue to represent a significant portion of the Company's revenues. The Company's refrigerant sales are primarily HCFC and HFC based refrigerants and to a lesser extent CFC based refrigerants that are no longer manufactured. Under the Act, commencing in 2010, future production of certain virgin HCFC refrigerants is scheduled to be phased out by the year 2020, and production of all virgin HCFC refrigerants is scheduled to be phased out by the year 2030.

The Company has created and developed a service offering known as RefrigerantSide® Services. RefrigerantSide® Services are sold to contractors and end-users whose refrigeration systems are used in commercial air conditioning and industrial processing. These services are offered in addition to refrigerant sales and the Company's traditional refrigerant management services, which consist primarily of reclamation of refrigerants. The Company has created a network of service depots that provide a full range of the Company's RefrigerantSide® Services to facilitate the growth and development of its service offerings.

The Company focuses its sales and marketing efforts for its RefrigerantSide® Services on customers who the Company believes most readily appreciate and understand the value that is provided by its RefrigerantSide® Services offering. In pursuing its sales and marketing strategy, the Company offers its RefrigerantSide® Services to customers in the following industries; petrochemical, pharmaceutical, industrial power, manufacturing, commercial facility and property management and maritime. In addition, the Company has expanded its service offering outside of the United States through a strategic alliance with The Linde Group. The Company may incur additional expenses as it develops its RefrigerantSide® Services offering.

Revenues for the fiscal year ended December 31, 2010 were $37,273,000, an increase of $13,106,000 or 54% from the $24,167,000 reported during the comparable 2009 period. The increase in revenues was primarily attributable to an increase in refrigerant revenues of $12,135,000 and an increase in RefrigerantSide® Services revenues of $971,000. The increase in refrigerant revenues is primarily related to an increase in the number of pounds of certain refrigerants sold. The increase in RefrigerantSide® Services was attributable to an increase in the average revenues per job completed and to a lesser extent by an increase in the number of jobs completed when compared to the same period of 2009.

Cost of sales for fiscal year ended December 31, 2010 was $29,241,000, an increase of $8,885,000 or 44% from the $20,356,000 reported during the comparable 2009 period. The increase in cost of sales was primarily due to the increase in the number of pounds of refrigerant sold. As a percentage of sales, cost of sales was 78% of revenues for 2010, a decrease from the 84% reported for the comparable 2009 period, primarily due to a lower cost per pound for certain refrigerants in 2010 as compared to the comparable 2009 period.

Operating expenses for the fiscal year ended December 31, 2010 were $5,880,000, an increase of $855,000 or 17% from the $5,025,000 reported during the comparable 2009 period. The increase in operating expenses was primarily related to increased payroll expenses and professional fees. In the 2009 period, the Company recognized certain give-backs of management bonuses as well as having recognized an insurance recovery and there were no such events in the 2010 period.

Other income (expense) for fiscal year ended December 31, 2010 was ($1,088,000), compared to the ($1,400,000) reported during the comparable 2009 period. Other income (expense) includes interest expense of $1,102,000 and $1,401,000 for the comparable 2010 and 2009 periods, respectively. The decrease in interest expense is due to a reduction in outstanding borrowings in 2010 when compared to 2009.

Income tax provision (benefit) for the fiscal ended December 31, 2010 and 2009 was $363,000 and ($119,000), respectively. For 2010, the income tax provision of $363,000 was for federal and state income tax at statutory rates offset by a refund for prior years taxes. The tax benefits associated with the Company's NOLs are recognized to the extent that the Company is expected to recognize taxable income in future periods. The Company's NOLs are subject to annual limitations and the Company expects to incur certain state and/or federal alternative minimum taxes for the foreseeable future.

Net income for the fiscal year ended December 31, 2010 was $701,000, an increase of $3,196,000 from the ($2,495,000) net loss reported during the comparable 2009 period, primarily due to increased revenues and gross profit, partially offset by increased operating expenses.

At December 31, 2010, the Company had working capital, which represents current assets less current liabilities of $12,225,000, an increase of $2,856,000 from the working capital of $9,369,000 at December 31, 2009. The increase in working capital is primarily attributable to the proceeds from the sale of equity securities and net income for the period offset by the reclassification of $3,500,000 of term loans from long term to short term to reflect the scheduled expiration of the Company's lending facility on June 26, 2011.

Inventory and trade receivables are principal components of current assets. At December 31, 2010, the Company had inventories of $18,211,000, an increase of $1,801,000 from $16,410,000 at December 31, 2009. The increase in the inventory balance is due to the timing and availability of inventory purchases and the sale of refrigerants. The Company's ability to sell and replace its inventory on a timely basis and the prices at which it can be sold are subject, among other things, to current market conditions and the nature of supplier or customer arrangements and the Company's ability to source CFC based refrigerants, which are no longer being manufactured, or non-CFC based refrigerants. At December 31, 2010, the Company had trade receivables, net of allowance for doubtful accounts of $1,767,000, an increase of $173,000 from $1,594,000 at December 31, 2009. The Company's trade receivables are concentrated with various wholesalers, brokers, contractors and end-users within the refrigeration industry that are primarily located in the continental United States.

The Company has historically financed its working capital requirements through cash flows from operations, the issuance of debt and equity securities, and bank borrowings.

Net cash provided by operating activities for the year ended December 31, 2010, was $3,128,000 compared with net cash provided by operating activities of $3,360,000 for the comparable 2009 period. Net cash provided by operating activities for the 2010 period was primarily attributable to net income, and an increase in accounts payable, offset by an increase in accounts receivable and inventories.

Net cash used by investing activities for the year ended December 31, 2010, was $618,000 compared with net cash used by investing activities of $430,000 for the comparable 2009 period. The net cash used by investing activities for the 2010 period was primarily related to investment in general purpose equipment for the Company's Champaign, Illinois facility.

Net cash provided by financing activities for the year ended December 31, 2010, was $1,117,000 compared with net cash used by financing activities of $2,845,000 for the comparable 2009 period. The net cash provided by financing activities for the 2010 period was primarily due to the sale of equity securities offset by repayments of debt.

At December 31, 2010, the Company had cash and cash equivalents of $3,926,000. The Company continues to assess its capital expenditure needs. The Company may, to the extent necessary, continue to utilize its cash balances to purchase equipment primarily for its operations. The Company estimates that the total capital expenditures for 2011 will be approximately $600,000.

The following is a summary of the Company's significant contractual cash obligations for the periods indicated that existed as of December 31, 2010 (in 000's):

____________

On June 26, 2007, a subsidiary of Hudson entered into the credit facility ("the Facility") with Keltic and on April 17, 2008, the Facility was amended to secure the participation of Bridge Healthcare Financial, LLC ("Bridge") and to provide for borrowings of up to $15,000,000. On September 23, 2009, Keltic advised the Company that it had assumed all of Bridge's rights under the Facility. The Facility consists of a revolving line of credit and two term loans, which expires on June 20, 2011. Advances under the revolving line of credit are limited to (i) 85% of eligible trade accounts receivable and (ii) 55% of eligible inventory. Advances available to Hudson under the A and B term loans may not exceed $2,500,000 and $4,500,000, respectively. At December 31, 2010, the Facility bore interest at 6.5%. Substantially all of Hudson's assets are pledged as collateral for its obligations under the Facility. In addition, among other things, the loan agreement restricts Hudson's ability to declare or pay any cash dividends on its capital stock. As of December 31, 2010, Hudson had $1,373,000 of borrowings outstanding and $7,478,000 available for borrowing under the revolving line of credit. In addition, as of December 31, 2010, Hudson had $3,500,000 of borrowings outstanding under the A and B term loans, and all such amounts are included as current debt due to the Facility's expiration date in June 2011. The Company expects to renew its Facility but there can be no assurance that the Company will be successful.

In connection with the April 2008 amendment to the Facility, the Company issued an aggregate of 100,000 five-year common stock purchase warrants exercisable at $1.88 per share. The fair value of the warrants was $74,000 and such amount is amortized over the life of the Facility.

For the fiscal quarter ended June 30, 2009, the Company obtained a covenant waiver, dated July 15, 2009, for a violation of the Adjusted EBITDA covenant. The June 30, 2009 violation occurred primarily because of the adverse impact on our results of operations from the severe downturn in the economy that began in late 2008. Additionally, our second quarter of 2009 operating results were also unfavorably impacted by unseasonably cool weather in the geographic areas where we conduct our business. The combination of these two factors negatively impacted our operating results.

For the period ended June 30, 2009, the Adjusted EBITDA was $800,000, versus $2,100,000 as required by the covenant in the Facility. The company obtained a covenant waiver for this violation of the Adjusted EBITDA covenant. A numeric reconciliation of net income to Adjusted EBITDA is as follows (in thousands):

On August 13, 2009, the Facility was amended, which amendment, among other things, reset the Adjusted EBITDA covenant in the Facility to the following:

As of December 31, 2009, the Adjusted EBITDA calculation was based on the six month period commencing with July 1, 2009 and ending December 31, 2009. As of December 31, 2009, the Company's Adjusted EBITDA was ($600,000), versus ($800,000) as required by the covenant in the Facility and the Company was in compliance with the covenant. A numeric reconciliation of net loss to Adjusted EBITDA is as follows (in thousands):

As of March 31, 2010, the Adjusted EBITDA calculation was based on the nine month period commencing with July 1, 2009 and ending March 31, 2010. As of March 31, 2010, the Company's Adjusted EBITDA was ($600,000), versus ($400,000) as required by the covenant in the Facility. The period ended March 31, 2010, was negatively affected by a slower than expected recovery from the economic downturn. The Company obtained a covenant waiver for this violation of the Adjusted EBITDA covenant. A numeric reconciliation of net loss to Adjusted EBITDA is as follows (in thousands):

On April 28, 2010, the Facility was amended, which amendment, among other things, reset the Adjusted EBITDA covenant in the Facility the following levels:

As of December 31, 2010, the Adjusted EBITDA calculation was based on the nine month period commencing with April 1, 2010 and ending December 31, 2010. As of December 31, 2010, the Company's Adjusted EBITDA was $2,800,000, versus $1,116,000 as required by the covenant in the Facility and the Company was in compliance with the covenant. A numeric reconciliation of net income to Adjusted EBITDA is as follows (in thousands):

On July 31, 2009, Hudson entered into a Placement Agent Agreement with an investment banking firm, (the "Placement Agent"), engaging the Placement Agent to act as placement agent for a registered direct offering under the Company's shelf registration statement, declared effective September 5, 2008 ("Shelf Registration"), to sell, on a best efforts basis, 3,870,000 shares of the Company's common stock at a sale price of $1.15 per share (the "2009 Offering").

A closing of the 2009 Offering was held on August 5, 2009, at which time, the Company sold 1,470,000 shares of its common stock at $1.15 per share and received net proceeds of approximately $1,400,000 and no other closings were completed. The Placement Agent received compensation from the Company of $101,000 and a warrant to purchase 73,500 shares of common stock at an exercise price of $1.4375 per share, plus reimbursement of its expenses of $56,000. The estimated fair value of the warrant was approximately $48,000 and such warrant was charged to additional paid in capital as compensation expense to the Placement Agent. As of October 1, 2009, the Company discontinued, and ceased pursuing future sales under, the 2009 Offering.

In September, 2009, the Company issued an aggregate of 32,173 shares of its common stock to certain vendors and the Company expensed approximately $44,000 as professional fees for these services.

On July 7, 2010, the Company sold 2,737,500 units, with the aggregate units consisting of 2,737,500 shares of the Company's common stock and warrants to purchase 1,368,750 shares, at a price of $2.00 per unit pursuant to the Company's Shelf Registration and received net proceeds of approximately $4,900,000 ("2010 Offering"). The warrants issued as part of the 2010 Offering have an exercise price of $2.60 per share and are exercisable for a five-year period, which commenced on January 7, 2011. The value of the aggregate number of warrants issued pursuant to the 2010 Offering was approximately $1,300,000 and such amount was charged as a component of stockholders' equity to additional paid in capital.

Effective as of March 4, 2011, the Company re-purchased warrants to purchase 150,000 shares of the Company's common stock, at a price of $0.60 per share, which warrants were issued in connection with the 2010 Offering.

On March 7, 2011, the remaining 1,218,750 warrants issued in connection with the 2010 Offering were amended on consent of the holders of more than two-thirds of the remaining warrants, to among other things, extend the expiration date of the warrants to July 7, 2016.

In May 2005, the Company purchased its Champaign, Illinois facility for a total purchase price of $999,999. The Company financed the purchase with a 15 year amortizing loan in the amount of $945,000 with a balloon payment due on June 1, 2012. The note bears interest at 7% for the first five years and then adjusts annually based on prime plus 2%.

In April 2008, the Company purchased approximately five acres of vacant land adjacent to its Champaign, Illinois facility for $300,000. The Company financed the purchase with a 15 year amortizing loan in the amount of $300,000 with a balloon payment due on June 1, 2012. The note bears interest at the fixed rate of 6.7% over the entire term of the note.

The Company believes that it will be able to satisfy its working capital requirements for the foreseeable future from anticipated cash flows from operations and available funds under the Facility. Any unanticipated expenses, including, but not limited to, an increase in the cost of refrigerants purchased by the Company, an increase in operating expenses or failure to achieve expected revenues from the Company's RefrigerantSide® Services and/or refrigerant sales or additional expansion or acquisition costs that may arise in the future or to the extent that the Company does not renew or replace the Facility when it expires would adversely affect the Company's future capital needs. There can be no assurances that the Company's proposed or future plans will be successful, and as such, the Company may require additional capital sooner than anticipated, which capital may not be available.

Inflation has not historically had a material impact on the Company's operations.

The Company's financial performance and its ability to sell refrigerants is in part dependent on its ability to obtain sufficient quantities of virgin, non-CFC based refrigerants, and of reclaimable CFC and non-CFC based, refrigerants from manufacturers, wholesalers, distributors, bulk gas brokers and from other sources within the air conditioning, refrigeration and automotive aftermarket industries, and on corresponding demand for refrigerants. The Company's refrigerant sales include CFC based refrigerants, which are no longer manufactured. Additionally, the Company's refrigerant sales include non-CFC based refrigerants, including HCFC and HFC refrigerants, which are the most widely used refrigerants. Effective January 1, 1996, the Act limits the production of virgin HCFC refrigerants, which production was further limited in January 2004. Federal regulations enacted in January 2004 also imposed limitations on the importation of certain virgin HCFC refrigerants. In addition, effective January 1, 2010, the Act further limited the production of virgin HCFC refrigerants and additional federal regulations were enacted which imposed further limitations on the use, production and importation of certain virgin HCFC refrigerants. Under the Act, production of certain virgin HCFC refrigerants is scheduled to be phased out by the year 2020 and production of all virgin HCFC refrigerants is scheduled to be phased out by the year 2030. The limitations imposed by and under the Act may limit supplies of virgin refrigerants for the foreseeable future or cause a significant increase in the price of virgin HCFC refrigerants.

For the years ended December 31, 2010 and 2009, no one customer accounted for 10% or more of the Company's revenues.

The loss of a principal customer or a decline in the economic prospects of and/or a reduction in purchases of the Company's products or services by any such customer could have a material adverse effect on the Company's financial position and results of operations.

The Company's operating results vary from period to period as a result of weather conditions, requirements of potential customers, non-recurring refrigerant and service sales, availability and price of refrigerant products (virgin or reclaimable), changes in reclamation technology and regulations, timing in introduction and/or retrofit or replacement of CFC and non CFC based refrigeration equipment, the rate of expansion of the Company's operations, and by other factors. The Company's business is seasonal in nature with peak sales of refrigerants occurring in the first half of each year. During past years, the seasonal decrease in sales of refrigerants has resulted in losses particularly in the fourth quarter of the year. In addition, during 2009, the Company experienced decreases in sales due, in part, to unseasonably cool weather throughout the spring and summer months, which adversely impacted demand for refrigerants. Delays or inability in securing adequate supplies of refrigerants at peak demand periods, lack of refrigerant demand, increased expenses, declining refrigerant prices and a loss of a principal customer could result in significant losses. There can be no assurance that the foregoing factors will not occur and result in a material adverse effect on the Company's financial position and significant losses. The Company believes that there is a similar seasonal element to RefrigerantSide® Service revenues as refrigerant sales. The Company is continuing to assess its RefrigerantSide® Service revenues seasonal trend.

In January 2010, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") No. 2010-06, Fair Value Measurements and Disclosures (topic 820) - Improving Disclosures about Fair Value Measurements. ASU 2010-06 requires new disclosures regarding transfers in and out of the Level 1 and 2 and activity within Level 3 fair value measurements and clarifies existing disclosures of inputs and valuation techniques for Level 2 and 3 fair value measurements. ASU 2010-06 also includes conforming amendments to employers' disclosures about postretirement benefit plan assets. The new disclosures and clarifications of existing disclosures are effective for interim and annual reporting periods beginning after December 15, 2009, except for the disclosure of activity within Level 3 fair value measurements, which is effective for fiscal years beginning after December 15, 2010, and for interim periods within those years. There was no impact upon adoption of ASU 2010-06 on January 1, 2010 to our financial position or results of operations. We do not expect there will be an impact to our financial position or results of operations for the additional disclosure requirements in 2011.

Not applicable.

The financial statements appear in a separate section of this report following Part IV.

None

Management's Report on Internal Control over Financial Reporting

Management of the Company is responsible for establishing and maintaining adequate internal control over financial reporting for the Company as defined in Rule 13a-15(f) under the Exchange Act. The Company's internal control over financial reporting is designed to provide reasonable assurance to the Company's management and board of directors regarding the preparation and fair presentation of published financial statements and the reliability of financial reporting.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Therefore, even those systems determined to be effective can provide only reasonable assurance with respect to financial statement preparation and presentation.

Management assessed the effectiveness of the Company's internal control over financial reporting as of December 31, 2010. In making this assessment, management used the criteria set forth by the Committee of Sponsoring Organizations of the Treadway Commission ("COSO") in Internal Control - Integrated Framework. Based on our assessment, we believe that, as of December 31, 2010, the Company's internal control over financial reporting is effective based on those criteria.

This annual report does not include an attestation report of the Company's registered public accounting firm regarding internal control over financial reporting. Management's report was not subject to attestation by the Company's registered public accounting firm pursuant to rules of the SEC that permit the Company to provide only management's report in this annual report on Form 10-K.

There were no changes in the Company's internal control over financial reporting (as defined in Rule 13a-15(f) of the Exchange Act) in the quarter ended December 31, 2010 that materially affected, or are reasonably likely to materially affect, the Company's internal control over financial reporting.

On March 4, 2011, the Board of Directors, upon recommendation of the Compensation Committee of the Board of Directors, approved awards of cash bonuses to its executive officers. Pursuant to this award, Kevin J. Zugibe will receive a total cash bonus of $122,000; Brian F. Coleman will receive a total cash bonus of $77,000; Charles F. Harkins will receive a total cash bonus of $63,000; and James R. Buscemi will receive a cash bonus of $42,000.

Effective as of March 4, 2011, the Company re-purchased warrants to purchase 150,000 shares of the Company's common stock, at a price of $0.60 per share, which warrants were issued in connection with the 2010 Offering.

On March 7, 2011, the remaining 1,218,750 warrants issued in connection with the 2010 Offering were amended on consent of the holders of more than two-thirds of the remaining warrants, to among other things, extend the expiration date of the warrants to July 7, 2016. The description of the Amended Warrant Agreements does not purport to be complete and is qualified in its entirety by reference to the full text of the form of the Amended Warrant Agreement which is filed as Exhibit 10.60 to this Report.

The information presented below provides information each director has given us about his age, all positions he holds, his principal occupation and his business experience for at least the past five years. In addition to the information presented below regarding each nominee's specific experience, qualifications, attributes and skills that led our Board to the conclusion that he should serve as a director, we also believe that all of our directors have a reputation for integrity, honesty and adherence to high ethical standards. They each have demonstrated business acumen and an ability to exercise sound judgment, as well as a commitment to service to the Company and our Board.

The following table sets forth information with respect to the directors and executive officers of the Company:

Kevin J. Zugibe, P.E., a 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. We believe Mr. Zugibe's qualifications to sit on our Board of Directors include his 25 years of experience in the air conditioning and refrigeration industry including as our founder, our Chairman and Chief Executive Officer for 20 years. Mr. Zugibe is the brother-in-law of Stephen P. Mandracchia.

Brian F. Coleman has been a Director of the Company since December 2007, and 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 since July 1995, was a partner with BDO USA, LLP, the Company's independent registered public accounting firm. We believe Mr. Coleman's qualifications to sit on our Board of Directors include his prior financial and accounting experience obtained as a partner with BDO USA, LLP, his 15 years of experience in the air conditioning and refrigeration industry including as our President and Chief Operating Officer for the past 10 years.

James R. Buscemi has been Chief Financial Officer of the Company since December 2002 and served as Corporate Controller from June 1998 until December 2002. 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.

Charles F. Harkins, Jr. has been Vice President of Sales of the Company since December 2003. Mr. Harkins 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 P. Mandracchia, a founder of the Company, 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. 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.

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 was formerly the Chairman of the International Packaged Ice Association and a trustee of Nyack Hospital. Mr. Abbatecola serves on the Rockland Board of Governors and the St. Thomas Aquinas President's Council. We believe that Mr. Abbatecola's qualifications to sit on our Board include his business experience obtained as Vice President of Abbey Ice and Spring Water Company, his 16 years of experience in the air conditioning and refrigeration industry by virtue of his service on our Board including as Chairman of the Company's Audit Committee for 17 years.

Dominic J. Monetta, DPA has been a Director of the Company since April 1996. Dr. Monetta has been the President of Resource Alternatives, Inc., a corporate development firm concentrating on solving management and technological issues facing chief executive officers and their senior executives, since August 1993. From December 1991 to May 1993, Dr. Monetta served as the Director of Defense Research and Engineering for Research and Advanced Technology, United States Department of Defense. From June 1989 to December 1991, Dr. Monetta served as the Director of the Office of New Production Reactors, United States Department of Energy. We believe that Dr. Monetta's qualifications to sit on our board include his engineering and other experience obtained as a past director for the US Department of Energy and Defense, his 16 years of experience in the air conditioning and refrigeration industry by virtue of his service on our Board including his membership on the Company's Audit Committee for 4 years.

Otto C. 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. We believe that Mr. Morch's qualifications to sit on our Board include his financial and other experience obtained as a Senior Vice President at Provident Savings Bank, F.A., his 16 years of experience in the air conditioning and refrigeration industry by virtue of his service on our Board including his membership on the Company's Audit Committee for 17 years.

Hudson has established a Compensation/Stock Option Committee of the Board of Directors, which is responsible for recommending the compensation of our executive officers and for the administration of Hudson's Stock Option Plans. The members of the Committee are Messrs. Abbatecola, Coleman, and Morch.

The By-laws of Hudson provide that the Board of Directors is divided into two classes. Each class is to have a term of two years, with the term of each class expiring in successive years, and is to consist, as nearly as possible, of one-half of the number of directors constituting the entire Board. The By-laws provide for the number of directors to be fixed by the Board of Directors but in any event, shall be no less than five (5) (subject to decrease by a resolution adopted by the shareholders). At Hudson's August 10, 2010, Annual Meeting of the Shareholders, Messrs. Monetta, and Zugibe were elected as directors to terms of office that will expire at the Annual Meeting of Shareholders to be held in the year 2012. Messrs. Abbatecola, Coleman and Morch are currently serving as directors and their terms of office expire at the Annual Meeting of Shareholders to be held in the year 2011.

Section 16(a) Beneficial Ownership Reporting Compliance

Section 16(a) of the Exchange Act requires our officers and directors, and persons who own more than 10 percent of a registered class of our equity securities, to file reports of ownership and changes in ownership with the SEC. Officers, directors, and greater than 10 percent shareholders are required by SEC regulation to furnish Hudson with copies of all Section 16(a) forms they file.

Based solely on Hudson's review of copies of such forms received by Hudson, and on representations made to us, we believe that during the year ended December 31, 2010, all filing requirements applicable to all officers directors and greater than 10% beneficial shareholders were complied with, except for two late filings in connection with a stock option issuance to each of Mr. Morch and Mr. Monetta.

Code of Conduct and Ethics

We have adopted a written code of conduct and ethics that applies to all directors, and employees, including Hudson's principal executive officer, principal financial officer, principal accounting officer or controller and any persons performing similar functions. We will provide a copy of its code of ethics to any person without charge upon written request addressed to Hudson Technologies, Inc., One Blue Hill Plaza, PO Box 1541, Pearl River, New York 10965, Attention: Stephen P. Mandracchia.

_____________________________

(1) We utilize the grant date fair value using the Black-Sholes method as described in Note 10 to the Notes to the Consolidated Financial Statements.

(2) Messrs. Coleman and Zugibe did not receive any compensation for services as a director during the years ended December 31, 2010 and 2009.

(3) Non-Equity Incentive Plan Compensation was earned in 2010 and will be paid in 2011.

Kevin J. Zugibe. On October 10, 2006, we entered into an Amended and Restated Employment Agreement with Kevin J. Zugibe, which currently expires in October 2012 and is automatically renewable for successive two year terms unless either party gives notice of termination at least ninety days prior to the expiration date of the then current term. Pursuant to the agreement, as amended by the First Amendment to Restated Employment Agreement dated December 29, 2008, Mr. Zugibe is receiving an annual base salary of $192,800 with such increases and bonuses as our Board of Directors may determine. The agreement provides, in the event of Mr. Zugibe's disability, for the continuation of at least 75% of Mr. Zugibe's salary for up to one hundred twenty days after the commencement of his disability. Mr. Zugibe is also entitled to take up to four weeks of vacation, excluding paid holidays.

As part of the agreement, Mr. Zugibe has agreed to certain covenants and restrictions, which include an agreement that Mr. Zugibe will not compete with us in specified geographic areas for a period of twenty-four months after his termination for any reason. The agreement also provides that, in the event of his involuntary separation from Hudson without cause, or in the event of his voluntary separation for a good reason as enumerated in the agreement, Mr. Zugibe will receive severance payments, in the form of the continuation of his annual base salary and benefits for a period of twenty-four months, and a lump sum payment equivalent to the highest bonus paid to Mr. Zugibe in the three years prior to his termination, pro-rated to the date of his termination. We are the beneficiary of a "key-man" insurance policy on the life of Mr. Zugibe in the amount of $1,000,000.

.

Brian F. Coleman. On October 10, 2006, we entered into an agreement with Brian F. Coleman, pursuant to which, as amended, Mr. Coleman has agreed to certain covenants and restrictions, which include an agreement that Mr. Coleman will not compete with us in specified geographic areas for a period of eighteen months after his termination for any reason. The agreement provides, in the event of his disability, for the continuation of at least 75% of his salary for up to one hundred twenty days after the commencement of his

disability. The agreement also provides that, in the event of his involuntary separation without cause, or in the event of his voluntary separation for a good reason as enumerated in the agreement, Mr. Coleman will receive severance payments, in the form of the continuation of his annual base salary and benefits for a period of eighteen months, and a lump sum payment equivalent to the highest bonus paid to him in the three years prior to his termination, pro-rated to the date of his termination.

Charles F. Harkins. On October 10, 2006, we entered into an agreement with Charles F. Harkins, pursuant to which, as amended, Mr. Harkins has agreed to certain covenants and restrictions, which include an agreement that Mr. Harkins will not compete with us in specified geographic areas for a period of eighteen months after his termination for any reason. The agreement provides, in the event of his disability, for the continuation of at least 75% of his salary for up to one hundred twenty days after the commencement of his disability. The agreement also provides that in the event of his involuntary separation without cause, or in the event of his voluntary separation for a good reason as enumerated in the agreement, Mr. Harkins will receive severance payments, in the form of the continuation of his annual base salary and benefits for a period of eighteen months, and a lump sum payment equivalent to the highest bonus paid to him in the three years prior to his termination, pro-rated to the date of his termination.

The Company did not issue stock options, or grant any stock awards to any of the Named Executives in 2010.

The following tables discloses the outstanding option awards held by the Named Executives as of December 31, 2010. No options were exercised by the Named Executives during the fiscal year ended December 31, 2010. No stock awards have been issued to the Named Executives.

We adopted an Employee Stock Option Plan (the "1994 Plan") effective October 31, 1994 pursuant to which 725,000 shares of our common stock were reserved for issuance upon the exercise of options designated as either (i) options intended to constitute incentive stock options ("ISOs") under the Internal Revenue Code of 1986, as amended (the "Code"), or (ii) nonqualified options. ISOs could be granted under the 1994 Plan to our employees and officers. Non-qualified options could be granted to consultants, directors (whether or not they are employees), our employees or officers. Effective November 1, 2004, our ability to grant options under the 1994 Plan expired.

All options granted under the 1994 Plan are not transferable during an optionee's lifetime but are transferable at death by will or by the laws of descent and distribution. In general, upon termination of employment of an optionee, all options granted to such person that are not exercisable on the date of such termination immediately terminate, and any options that are exercisable terminate 90 days following termination of employment.

As of December 31, 2010, we had options outstanding to purchase 59,364 shares of our common stock under the 1994 Plan.

We adopted the 1997 Stock Option Plan (the "1997 Plan") effective June 11, 1997 pursuant to which 2,000,000 shares of our common stock were reserved for issuance upon the exercise of options designated as either (i) ISOs under the Code, or (ii) nonqualified options. ISOs could be granted under the 1997 Plan to our employees and officers. Non-qualified options could be granted to consultants, directors (whether or not they are employees), our employees or officers. Stock appreciation rights could also be issued in tandem with stock options. Effective June 11, 2007 our ability to grant options under the 1997 Plan expired.

All options granted under the 1997 Plan are not transferable during an optionee's lifetime but are transferable at death by will or by the laws of descent and distribution. In general, upon termination of employment of an optionee, all options granted to such person that are not exercisable on the date of such termination immediately terminate, and any options that are exercisable terminate 90 days following termination of employment.

As of December 31, 2010, we had options outstanding to purchase 802,678 shares of our common stock under the 1997 Plan.

We have adopted the 2004 Stock Incentive Plan (the "2004 Plan"), pursuant to which 2,500,000 shares of our common stock are currently reserved for issuance upon the exercise of options, designated as either (i) ISOs, under the Code or (ii) non-qualified options, or for issuance upon the granting of restricted stock, deferred stock or other stock-based awards. ISOs may be granted under the 2004 Plan to employees and officers of Hudson. Non-qualified options, restricted stock, deferred stock or other stock-based awards may be granted to consultants, directors (whether or not they are employees), employees or officers of Hudson. Stock appreciation rights may also be issued in tandem with stock options.

The 2004 Plan is intended to qualify under Rule 16b-3 under the Exchange Act and is administered by our Compensation/Stock Option Committee of the Board of Directors. The Committee, within the limitations of the 2004 Plan, determines the persons to whom options will be granted, the number of shares to be covered by each option, whether the options granted are intended to be ISOs, the duration and rate of exercise of each option, the exercise price per share and the manner of exercise and the time, manner and form of payment upon exercise of an option. In the case of restricted stock, deferred stock or other stock-based awards, the Committee, within the limitations of the 2004 Plan, determines the persons to whom awards will be granted, the number of shares of stock subject to the award, and the restrictions on issuance and transfer of such shares. Unless the 2004 Plan is sooner terminated, the ability to grant options or other awards under the 2004 Plan will expire on September 10, 2014.

ISOs granted under the 2004 Plan may not be granted at a price less than the fair market value of our common stock on the date of grant (or 110% of fair market value in the case of ISO's granted to a 10% shareholder). In the case of ISOs, the aggregate fair market value of shares for which ISOs granted to any employee are exercisable for the first time by such employee during any calendar year (under all of our stock option plans) may not exceed $100,000. Non-qualified options granted under the 2004 Plan may not be granted at a price less than the fair market value of our common stock. Options granted under the 2004 Plan will expire not more than ten years from the date of grant (five years in the case of ISOs granted to a 10% shareholder). Except as otherwise provided by the Committee with respect to non-qualified options, all options, restricted stock, deferred stock or other stock-based awards granted under the 2004 Plan are not transferable during an grantee's lifetime but are transferable at death by will or by the laws of descent and distribution. In general, upon termination of employment of a grantee, all options, restricted stock, deferred stock or other stock-based

awards granted to such person which are not exercisable on the date of such termination immediately terminate, and any options that are exercisable terminate 90 days following termination of employment.

As of December 31, 2010, we had options outstanding to purchase 2,214,901 shares of common stock and 20,000 shares are reserved for future issuances under the 2004 Plan.

We have adopted the 2008 Stock Incentive Plan (the "2008 Plan"), pursuant to which 3,000,000 shares of our common stock are currently reserved for issuance upon the exercise of options, designated as either (i) ISOs, under the Code or (ii) non-qualified options, or for issuance upon the granting of restricted stock, deferred stock or other stock-based awards. ISOs may be granted under the 2008 Plan to employees and officers of Hudson. Non-qualified options, restricted stock, deferred stock or other stock-based awards may be granted to consultants, directors (whether or not they are employees), employees or officers of Hudson. Stock appreciation rights may also be issued in tandem with stock options.

The 2008 Plan is intended to qualify under Rule 16b-3 under the Exchange Act and is administered by our Compensation/Stock Option Committee of the Board of Directors. The Committee, within the limitations of the 2008 Plan, determines the persons to whom options will be granted, the number of shares to be covered by each option, whether the options granted are intended to be ISOs, the duration and rate of exercise of each option, the exercise price per share and the manner of exercise and the time, manner and form of payment upon exercise of an option. In the case of restricted stock, deferred stock or other stock-based awards, the Committee, within the limitations of the 2008 Plan, determines the persons to whom awards will be granted, the number of shares of stock subject to the award, and the restrictions on issuance and transfer of such shares. Unless the 2008 Plan is sooner terminated, the ability to grant options or other awards under the 2008 Plan will expire on June 19, 2018.

ISOs granted under the 2008 Plan may not be granted at a price less than the fair market value of our common stock on the date of grant (or 110% of fair market value in the case of ISO's granted to a 10% shareholder). In the case of ISOs, the aggregate fair market value of shares for which ISOs granted to any employee are exercisable for the first time by such employee during any calendar year (under all of our stock option plans) may not exceed $100,000. Non-qualified options granted under the 2008 Plan may not be granted at a price less than the fair market value of our common stock. Options granted under the 2008 Plan will expire not more than ten years from the date of grant (five years in the case of ISOs granted to a 10% shareholder). Except as otherwise provided by the Committee with respect to non-qualified options, all options, restricted stock, deferred stock or other stock-based awards granted under the 2008 Plan are not transferable during an grantee's lifetime but are transferable at death by will or by the laws of descent and distribution. In general, upon termination of employment of a grantee, all options, restricted stock, deferred stock or other stock-based awards granted to such person which are not exercisable on the date of such termination immediately terminate, and any options that are exercisable terminate 90 days following termination of employment.

As of December 31, 2010, we had options outstanding to purchase 335,000 shares of common stock and 2,665,000 shares are reserved for issuance of future awards under the 2008 Plan.

Non-employee directors receive an annual fee of $10,000 and receive reimbursement for out-of-pocket expenses incurred for attendance at meetings of the Board of Directors and Board Committee meetings. In 2010, non-employee directors each received an annual fee of $10,000 and reimbursement for out-of-pocket expenses incurred for attendance at meetings of the Board of Directors and Board committee meetings. The following table discloses the compensation of the non-employee directors who served as our directors during the year ended December 31, 2010. We reimburse each of our non-employee directors for their reasonable expenses incurred in connection with attending meetings of our board of directors and related committees.

__________________________

(1) We utilize the grant date fair value using the Black-Sholes method as described in Note 10 to the Notes to the Consolidated Financial Statements.

(2) As of December 31, 2010, Mr. Abbatecola has options to purchase 105,000 shares of common stock outstanding, Mr. Morch has options to purchase 87,500 shares of common stock outstanding, and Mr. Monetta has options to purchase 65,000 shares of common stock outstanding.

The following table sets forth information as of February 26, 2011 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:

* = Less than 1%

_______

(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, 2011. 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.

(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 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.

(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.

(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) 78,600 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.

(5) Includes (i) 1,508,420 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 which may be purchased at $1.26 per share, under immediately exercisable options.

(6) Includes (i) 40,000 shares which may be purchased at $0.85 per share; (ii) 40,000 shares which may be purchased at $1.21 per share; and (iii) 25,000 shares which may be purchased at $1.72, under immediately exercisable options.

(7) Includes (i) 40,000 shares which may be purchased at $1.21 per share; and (ii) 25,000 shares which may be purchased at $1.72 per share under immediately exercisable options.

(8) Includes (i) 2,500 shares, which may be purchased at $1.12 per share; and (ii) 20,000 shares which may be purchased at $0.85 per share; (iii) 40,000 shares which may be purchased at $1.21 per share; and (iv) 25,000 shares which may be purchased at $1.72 per share, under immediately exercisable options.

(9) Represents aggregate amount of beneficially owned common stock as reported in Schedule 13G filed by Marathon Capital Management, LLC on February 1, 2011. The address of Marathon Capital Management, LLC is 4 North Park Drive, Suite 106, Hunt Valley, MD 21030.

(10) Includes exercisable options to purchase 2,704,947 shares of common stock which may be purchased under immediately exercisable options.

The following table provides certain information with respect to all of Hudson's equity compensation plans as of December 31, 2010.

__________________________

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.

Our Board of Directors is comprised of five members, of which three directors are independent as defined under NASDAQ marketplace rules. The independent members of the Board are Messrs. Abbatecola, Monetta and Morch. Messrs. Coleman and Zugibe are not independent as defined under NASDAQ marketplace rules.

The independent members of our Board of Directors determine the compensation of our executive officers. The Board of Directors has established a Compensation/Stock Option Committee, which is responsible for recommending to the independent directors the compensation of our executive officers and for the administration of our employee benefit plans. The members of such committee are Messrs. Abbatecola, Coleman and Morch.

In September 2007, the Board established a Nominating Committee consisting of Messrs. Abbatecola, Monetta and Zugibe, and which is responsible for recommending to the independent directors nominees for election to the Board. Nominations to the Board are made by vote of the independent directors of the Board.

The members of our Audit Committee of our Board of Directors are Messrs. Abbatecola, Monetta, and Morch, all of whom are independent as defined under NASDAQ marketplace rules.

Each year, all of our directors and officers are asked to disclose the existence of family relationships and other related transactions in Director and Officer Questionnaires. Our Audit Committee is responsible for reviewing and approving or ratifying related-person transactions. A related person is any executive officer, director or more than 5% stockholder, or any immediate family member of the foregoing persons, or entity owned or controlled by such person. In addition, pursuant to our Code of Business Conduct and Ethics, all of our employees and directors are required to bring any conflict of interest to the attention of one of the Company's executive officers or directors. In determining whether to approve or ratify a related party transaction, the Audit Committee will consider, among other factors it deems appropriate, whether the related party transaction is on terms no less favorable to us than terms generally available to us from an unaffiliated third-party' under the same or similar circumstances, and the extent of the related party's interest in the transaction. Any transaction which is deemed to be a related party transaction requires the approval, initially by a majority of the non-interested Audit Committee members and finally by a majority of the non-interested Board members. There are no other written procedures governing any review of related person transactions.

Audit Fees. The aggregate fees billed by BDO USA, LLP for professional services rendered for the audits and reviews of the Company's financial statements for the years ended December 31, 2010 and 2009 totaled $208,000 and $221,000, respectively.

Audit-Related Fees. In 2010 and 2009, the aggregate fees billed by BDO USA, LLP for assurance and related services that are reasonably related to the performance of the audit or review of the Company's financial statements was none.

Tax Fees. In 2010 and 2009 the aggregate fees billed by BDO USA, LLP for professional services rendered for tax advice totaled $31,000 and $34,000, respectively.

All Other Fees. In 2010 and 2009, all other fees billed by BDO USA LLP for professional services rendered other than the services described in the paragraphs caption "Audit Fees", "Audit Related Fees" and "Tax Fees" were none.

The Audit Committee has established its pre-approval policies and procedures, pursuant to which the Audit Committee approved the foregoing audit services provided by BDO USA, LLP in 2010. Consistent with the Audit Committee's responsibility for engaging the Company's independent auditors, all audit and permitted non-audit services require pre-approval by the Audit Committee. The full Audit Committee approves proposed services and fee estimates for these services. The Audit Committee chairperson or their designee has been designated by the Audit Committee to approve any services arising during the year that were not pre-approved by the Audit Committee. Services approved by the Audit Committee chairperson are communicated to the full Audit Committee at its next regular meeting and the Audit Committee reviews services and fees for the fiscal year at each such meeting. Pursuant to these procedures, the Audit Committee approved the foregoing audit services provided by BDO USA, LLP.

To Stockholders and Board of Directors

Hudson Technologies, Inc.

Pearl River, New York

We have audited the accompanying consolidated balance sheets of Hudson Technologies, Inc. and subsidiaries as of December 31, 2010 and 2009 and the related consolidated statements of operations, stockholders' equity and cash flows for the years then ended. These financial statements are the responsibility of the Company's management. Our responsibility is to express an opinion on these financial statements based on our audits.

We conducted our audits in accordance with the Standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free from material misstatement. An audit includes consideration of internal controls over financial reporting as a basis for designing audit procedures that are appropriate in the circumstances, but not for the purpose of expressing an opinion on the effectiveness of the Company's internal controls over financial reporting. Accordingly, we express no such opinion. An audit also includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements, assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. We believe that our audits provide a reasonable basis for our opinion.

In our opinion, the consolidated financial statements referred to above present fairly, in all material respects, the financial position of Hudson Technologies, Inc. and subsidiaries as of December 31, 2010 and 2009 and the results of their operations and their cash flows for the years then ended in conformity with accounting principles generally accepted in the United States.

Valhalla, New York

March 7, 2011

(Amounts in thousands, except for share and par value amounts)

(Amounts in thousands, except for share and per share amounts)

(Amounts in thousands, except for share amounts)

(Amounts in thousands)

Hudson Technologies, Inc., incorporated under the laws of New York on January 11, 1991, is a refrigerant services company providing innovative solutions to recurring problems within the refrigeration industry. The Company's products and services are primarily used in commercial air conditioning, industrial processing and refrigeration systems, including (i) refrigerant sales, (ii) refrigerant management services consisting primarily of reclamation of refrigerants and (iii) RefrigerantSide® Services performed at a customer's site, consisting of system decontamination to remove moisture, oils and other contaminants. In addition, RefrigerantSide® Services include predictive and diagnostic services for industrial and commercial refrigeration applications, which are designed to predict potential catastrophic problems and identify inefficiencies in an operating system. The Company's Chiller Chemistry®, Chill Smart®, Fluid Chemistry™, and Performance Optimization are predictive and diagnostic service offerings. The Company operates through its wholly-owned subsidiary, Hudson Technologies Company. Unless the context requires otherwise, reference to the "Company", "Hudson", "we", "us", "our", or similar pronouns refer to Hudson Technologies, Inc. and its subsidiaries.

In preparing the accompanying consolidated financial statements, and in accordance with recently issued SFAS No. 165 "Subsequent Events" (ASC855-10), the Company's management has evaluated subsequent events through March 1, 2010, which is the date that the financial statements were filed.

In the opinion of management, all estimates and adjustments considered necessary for a fair presentation have been included and all such adjustments were normal and recurring.

The consolidated financial statements represent all companies of which Hudson directly or indirectly has majority ownership or otherwise controls. Significant intercompany accounts and transactions have been eliminated. The Company's consolidated financial statements include the accounts of wholly-owned subsidiaries Hudson Holdings, Inc. and Hudson Technologies Company.

The carrying values of financial instruments including trade accounts receivable and accounts payable approximate fair value at December 31, 2010 and 2009, because of the relatively short maturity of these instruments. The carrying value of short-and long-term debt approximates fair value, based upon quoted market rates of similar debt issues, as of December 31, 2010 and 2009.

Financial instruments, which potentially subject the Company to concentrations of credit risk, consist principally of temporary cash investments and trade accounts receivable. The Company maintains its temporary cash investments in highly-rated financial institutions and, at times, the balances exceed FDIC insurance coverage. The Company's trade accounts receivables are primarily due from companies throughout the United States. The Company reviews each customer's credit history before extending credit.

The Company establishes an allowance for doubtful accounts based on factors associated with the credit risk of specific accounts, historical trends, and other information. The carrying value of the Company's accounts receivable is reduced by the established allowance for doubtful accounts. The allowance for doubtful accounts includes any accounts receivable balances that are determined to be uncollectible, along with a general reserve for the remaining accounts receivable balances. The Company adjusts its general or specific reserves based on factors that affect the collectability of the accounts receivable balances.

For the years ended December 31, 2010 and 2009 no one customer accounted for 10% or more of the Company's revenues.

The loss of a principal customer or a decline in the economic prospects of and/or a reduction in purchases of the Company's products or services by any such customer could have an adverse effect on the Company's future financial position and results of operations.

Temporary investments with original maturities of ninety days or less are included in cash and cash equivalents.

Inventories, consisting primarily of refrigerant products available for sale, are stated at the lower of cost, on a first-in first-out basis, or market.

Property, plant, and equipment are stated at cost, including internally manufactured equipment. The cost to complete equipment that is under construction is not considered to be material to the Company's financial position. Provision for depreciation is recorded (for financial reporting purposes) using the straight-line method over the useful lives of the respective assets. Leasehold improvements are amortized on a straight-line basis over the shorter of economic life or terms of the respective leases. Costs of maintenance and repairs are charged to expense when incurred.

Due to the specialized nature of the Company's business, it is possible that the Company's estimates of equipment useful life periods may change in the future.

Revenues are recorded upon completion of service or product shipment and passage of title to customers in accordance with contractual terms. The Company evaluates each sale to ensure collectability. In addition, each sale is based on an arrangement with the customer and the sales price to the buyer is fixed. License fees are recognized over the period of the license based on the respective performance measurements associated with the license. Royalty revenues are recognized when earned. Cost of sales is recorded based on the cost of products shipped or services performed and related direct operating costs of the Company's facilities. To the extent that the Company charges its customers shipping fees such amounts are included as a component of revenue and the corresponding costs are included as a component of cost of sales.

The Company's revenues are derived from refrigerant and reclamation sales and RefrigerantSide® Services, including license and royalty revenues. The revenues for each of these lines are as follows:

The Company utilizes the asset and liability method for recording deferred income taxes, which provides for the establishment of deferred tax asset or liability accounts based on the difference between tax and financial reporting bases of certain assets and liabilities. The tax benefit associated with the Company's net operating loss carry forwards ("NOLs") is recognized to the extent that the Company is expected to recognize future taxable income. The Company assesses the recoverability of its deferred tax assets based on its expectation that it will recognize future taxable income and adjusts its valuation allowance accordingly. As of December 31, 2010, the net deferred tax asset is $3,669,000.

Certain states either do not allow or limit NOLs and as such the Company will be liable for certain state taxes. To the extent that the Company utilizes its NOLs, it will not pay tax on such income but may be subject to the federal alternative minimum tax. In addition, to the extent that the Company's net income, if any, exceeds the annual NOL limitation it will pay income taxes based on existing statutory rates. Moreover, as a result of a "change in control", as defined by the Internal Revenue Service, the Company's ability to utilize its existing NOLs is subject to certain annual limitations. The Company's NOLs are subject to annual limitations ranging from $1,300,000 to $2,500,000.

As a result of an Internal Revenue Service audit, the 2006 and prior federal tax years have been closed. The Company operates in many states throughout the United States and, as of December 31, 2010, the various states' statutes of limitations remain open for tax years subsequent to 2004. The Company recognizes interest and penalties, if any, relating to income taxes as a component of the provision for income taxes.

If dilutive, common equivalent shares (common shares assuming exercise of options and warrants) utilizing the treasury stock method are considered in the presentation of diluted earnings per share. The reconciliation of shares used to determine net income (loss) per share is as follows (dollars in thousands):

For the years ended December 31, 2010 and 2009 certain options and warrants aggregating 2,194,000 and 3,567,843 shares, respectively, have been excluded from the calculation of diluted shares, due to the fact that their effect would be anti-dilutive.

The preparation of financial statements in conformity with generally accepted accounting principles in the United States requires management to make estimates and assumptions that affect reported amounts of certain assets and liabilities, the disclosure of contingent assets and liabilities, and the results of operations during the reporting period. Actual results could differ from these estimates.

Several of the Company's accounting policies involve significant judgments, uncertainties and estimations. The Company bases its estimates on historical experience and on various other assumptions that are believed to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities. Actual results may differ from these estimates under different assumptions or conditions. To the extent that actual results differ from management's judgments and estimates, there could be a material adverse effect on the Company. On a continuous basis, the Company evaluates its estimates, including, but not limited to, those estimates related to its allowance for doubtful accounts, inventory reserves, valuation allowance for the deferred tax assets relating to its NOLs and commitments and contingencies. With respect to accounts receivable, the Company estimates the necessary allowance for doubtful accounts based on both historical and anticipated trends of payment history and the ability of the customer to fulfill its obligations. For inventory, the Company evaluates both current and anticipated sales prices of its products to determine if a write down of inventory to net realizable value is necessary. In determining the Company's valuation allowance for its deferred tax assets, the Company assesses its ability to generate taxable income in the future.

The Company participates in an industry that is highly regulated, changes in which could affect operating results. Currently the Company purchases virgin, hydrochlorofluorocarbon ("HCFC") and hydroflourocarbon ("HFC") refrigerants and reclaimable, primarily HCFC and chlorofluorocarbon ("CFC"), refrigerants from suppliers and its customers. Effective January 1, 1996, the Clean Air Act (the "Act") prohibited the production of virgin CFC refrigerants and limited the production of virgin HCFC refrigerants. Effective January 2004, the Act further limited the production of virgin HCFC refrigerants and federal regulations were enacted which impose limitations on the importation of certain virgin HCFC refrigerants. Additionally, effective January 1, 2010, the Act further limited the production of virgin HCFC refrigerants and additional federal regulations were enacted which impose further limitation on the use, production and importation of virgin HCFC refrigerants. Under the Act, production of certain virgin HCFC refrigerants is scheduled to be phased out during the period 2010 through 2020, and production of all virgin HCFC refrigerants is scheduled to be phased out by 2030. Notwithstanding the limitations under the Act, the Company believes that sufficient quantities of new and used refrigerants will continue to be available to it at a reasonable cost for the foreseeable future. To the extent that the Company is unable to source sufficient quantities of refrigerants or is unable to obtain refrigerants on commercially reasonable terms or experiences a decline in demand and/or price for refrigerants, the Company could realize reductions in refrigerant processing and possible loss of revenues, which would have a material adverse affect on operating results.

The Company is subject to various legal proceedings. The Company assesses the merit and potential liability associated with each of these proceedings. In addition, the Company estimates potential liability, if any, related to these matters. To the extent that these estimates are not accurate, or circumstances change in the future, the Company could realize liabilities, which would have a material adverse effect on operating results and its financial position.

The Company reviews long-lived assets for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. Recoverability of assets to be held and used is measured by a comparison of the carrying amount of the assets to the future net cash flows expected to be generated by the asset. If such assets are considered to be impaired, the impairment to be recognized is measured by the amount by which the carrying amount of the assets exceeds the fair value of the assets. Assets to be disposed of are reported at the lower of the carrying amount or fair value less the cost to sell.

In January 2010, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") No. 2010-06, Fair Value Measurements and Disclosures (topic 820) - Improving Disclosures about Fair Value Measurements. ASU 2010-06 requires new disclosures regarding transfers in and out of the Level 1 and 2 and activity within Level 3 fair value measurements and clarifies existing disclosures of inputs and valuation techniques for Level 2 and 3 fair value measurements. ASU 2010-06 also includes conforming amendments to employers' disclosures about postretirement benefit plan assets. The new disclosures and clarifications of existing disclosures are effective for interim and annual reporting periods beginning after December 15, 2009, except for the disclosure of activity within Level 3 fair value measurements, which is effective for fiscal years beginning after December 15, 2010, and for interim periods within those years. There was no impact upon adoption of ASU 2010-06 on January 1, 2010 to our financial position or results of operations. We do not expect there will be an impact to our financial position or results of operations for the additional disclosure requirements in 2011.

For the years ended December 31, 2010 and 2009, other income consisted of interest income of $14,000 and $1,000, respectively.

During the year ended December 31, 2010, the Company recognized $451,000 in federal and state income tax expense, offset by a prior period refund of $88,000. During the year ended December 31, 2009, the Company recognized $119,000 in federal and state income tax benefits. In future periods, the Company may be subject to federal or state income tax expense due to limitations of the usage of the Company's NOL's. For the year ended December 31, 2009, the Company recognized a tax benefit of $140,000 to reflect the current recoverable federal income tax paid for the prior year.

Reconciliation of the Company's actual tax rate to the U.S. Federal statutory rate is as follows:

As of December 31, 2010, the Company had NOL's of approximately $20,000,000 expiring 2018 through 2029. Approximately $19,000,000 of the Company's NOL's are subject to an annual limitations ranging from $1,300,000 to $2,500,000.

Elements of deferred income tax assets (liabilities) are as follows: