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Exhibit 99.1 HUDSON TECHNOLOGIES REPORTS THIRD QUARTER 2021 RESULTS PEARL RIVER , NY - NOVEMBER 3 , 2021 - Hudson Technologies , Inc. ( NASDAQ : HDSN ) announced results for the third quarter and nine months ended September 30 , 2021 . For the quarter ended September 30 , 2021 , Hudson reported revenues of $ 60.6 million , an increase of 46 % compared to revenues of $ 41.5 million in the comparable 2020 period . Third quarter revenue growth was driven by increased selling prices of certain refrigerants during the period . Gross margin in the third quarter of 2021 was 39 % , compared to 22 % in the third quarter of 2020 , mainly due to the aforementioned increase in selling price of certain refrigerants . Hudson reported operating income of $ 16.9 million in the third quarter of 2021 , compared to operating income of $ 2.1 million in the prior year period . The Company recorded net income of $ 15.9 million or $ 0.36 per basic and $ 0.34 per diluted share in the third quarter of 2021 , compared to net income of $ 39 thousand or $ 0.00 per basic and diluted share in the same period of 2020 . For the nine months ended September 30 , 2021 , Hudson reported revenues of $ 155.0 million , an increase of 24 % compared to revenues of $ 125.5 million in the first nine months of 2020. The revenue growth was driven by increased selling prices for certain refrigerants during the period . Gross margin during the nine months ended September 30 , 2021 was 35 % , compared to 24 % in the first nine months of 2020 , mainly due to the aforementioned increase in selling price of certain refrigerants . Hudson reported operating income of $ 33.0 million for the first nine months of 2021 compared to operating income of $ 7.7 million in the prior year period . The Company recorded net income of $ 26.1 million or $ 0.60 per basic and $ 0.56 per diluted share in the first nine months of 2021 , compared to a net loss of $ 0.5 million or ( $ 0.01 ) per basic and diluted share in the same period of 2020 . At September 30 , 2021 , the Company had approximately $ 53 million of total availability , consisting of cash and cash equivalents plus revolving loan availability . Brian F. Coleman , President and Chief Executive Officer of Hudson Technologies commented , “ The close of the third quarter represents a strong finish to our traditional nine month selling season . We're pleased to have delivered substantial revenue growth , increased margins and enhanced profitability in the quarter and for the 2021 selling season . Our improved performance was primarily related to significantly increased average selling prices of certain refrigerants , partially offset by reduced demand volume due to both a greater focus on higher margin customers as we have realigned our sales strategy , and a slower than expected reopening of businesses . In addition , there has been a far greater disruption in the supply chain , both with product availability and transportation , which has impacted our entire industry , as well as the overall economy . We're focused on proactively managing our inventory so that we will be well positioned to continue to serve our customer base throughout the 2022 cooling season . " In September , the EPA published the final rule allocating allowances for the production and consumption of HFCs , as mandated by the AIM Act , introducing a stepdown of 10 % in 2022 from baseline levels . As we expected , Hudson received an allocation allowance for calendar year 2022 equal to approximately 3 million Metric Tons Exchange Value Equivalents , or 1 % of the total HFC consumption allocation , with allowances for 2023 and beyond to be determined at a later date . Notably , subsequent allowances must establish a 40 % reduction in virgin production and importation from the current baseline , in 2024. We expect the reduction in virgin HFC supply will help accelerate reclamation activity in the near term and with the final HFC allowances in place , we believe we are competitively positioned through both our reclamation capabilities and our robust distribution network , to capture market share as both a supplier and a reclaimer , serving the large and growing installed base of HFC equipment . Please remember that our technology has the ability to service and reclaim any refrigerant , including next generation HFOs , well into the future . We support the global efforts to transition our industry to more environmentally friendly gases , and believe we have a unique opportunity to provide a sustainable alternative to virgin refrigerants as the HFC supply tightens , " Mr. Coleman concluded .