0 0 0000925528--12-31 2021 FY false HUDSON TECHNOLOGIES INC /NY 44758925 43347887 8100000 P2M P18M 2022-04-01 2024-12-01 2021-09-01 2021-05-01 2022-06-01 2022-08-01 2022-02-01 2021-12-01 Feb. 01, 2021 2030-07-01 2021-06-01 2027-08-01 P3Y P5Y P5Y P12M 0000925528 us-gaap:CommonStockMember 2021-01-01 2021-12-31 0000925528 us-gaap:CommonStockMember 2020-01-01 2020-12-31 0000925528 us-gaap:RetainedEarningsMember 2021-12-31 0000925528 us-gaap:AdditionalPaidInCapitalMember 2021-12-31 0000925528 us-gaap:RetainedEarningsMember 2020-12-31 0000925528 us-gaap:AdditionalPaidInCapitalMember 2020-12-31 0000925528 us-gaap:RetainedEarningsMember 2019-12-31 0000925528 us-gaap:AdditionalPaidInCapitalMember 2019-12-31 0000925528 us-gaap:CommonStockMember 2021-12-31 0000925528 us-gaap:CommonStockMember 2020-12-31 0000925528 us-gaap:CommonStockMember 2019-12-31 0000925528 srt:MinimumMember us-gaap:EmployeeStockOptionMember 2021-01-01 2021-12-31 0000925528 srt:MaximumMember us-gaap:EmployeeStockOptionMember 2021-01-01 2021-12-31 0000925528 srt:MinimumMember 2021-01-01 2021-12-31 0000925528 srt:MaximumMember 2021-01-01 2021-12-31 0000925528 srt:MinimumMember 2020-01-01 2020-12-31 0000925528 srt:MaximumMember 2020-01-01 2020-12-31 0000925528 us-gaap:EmployeeStockOptionMember 2021-01-01 2021-12-31 0000925528 us-gaap:ServiceMember 2021-01-01 2021-12-31 0000925528 us-gaap:ProductMember 2021-01-01 2021-12-31 0000925528 us-gaap:ServiceMember 2020-01-01 2020-12-31 0000925528 us-gaap:ProductMember 2020-01-01 2020-12-31 0000925528 srt:MinimumMember us-gaap:VehiclesMember 2021-01-01 2021-12-31 0000925528 srt:MinimumMember us-gaap:LeaseholdImprovementsMember 2021-01-01 2021-12-31 0000925528 srt:MinimumMember us-gaap:LandImprovementsMember 2021-01-01 2021-12-31 0000925528 srt:MinimumMember us-gaap:FurnitureAndFixturesMember 2021-01-01 2021-12-31 0000925528 srt:MinimumMember us-gaap:EquipmentMember 2021-01-01 2021-12-31 0000925528 srt:MinimumMember us-gaap:ComputerEquipmentMember 2021-01-01 2021-12-31 0000925528 srt:MinimumMember us-gaap:BuildingMember 2021-01-01 2021-12-31 0000925528 srt:MinimumMember us-gaap:BuildingImprovementsMember 2021-01-01 2021-12-31 0000925528 srt:MinimumMember us-gaap:AssetsHeldUnderCapitalLeasesMember 2021-01-01 2021-12-31 0000925528 srt:MinimumMember hdsn:CylindersMember 2021-01-01 2021-12-31 0000925528 srt:MaximumMember us-gaap:VehiclesMember 2021-01-01 2021-12-31 0000925528 srt:MaximumMember us-gaap:LeaseholdImprovementsMember 2021-01-01 2021-12-31 0000925528 srt:MaximumMember us-gaap:LandImprovementsMember 2021-01-01 2021-12-31 0000925528 srt:MaximumMember us-gaap:FurnitureAndFixturesMember 2021-01-01 2021-12-31 0000925528 srt:MaximumMember us-gaap:EquipmentMember 2021-01-01 2021-12-31 0000925528 srt:MaximumMember us-gaap:ComputerEquipmentMember 2021-01-01 2021-12-31 0000925528 srt:MaximumMember us-gaap:BuildingMember 2021-01-01 2021-12-31 0000925528 srt:MaximumMember us-gaap:BuildingImprovementsMember 2021-01-01 2021-12-31 0000925528 srt:MaximumMember us-gaap:AssetsHeldUnderCapitalLeasesMember 2021-01-01 2021-12-31 0000925528 srt:MaximumMember hdsn:CylindersMember 2021-01-01 2021-12-31 0000925528 us-gaap:VehiclesMember 2021-12-31 0000925528 us-gaap:LeaseholdImprovementsMember 2021-12-31 0000925528 us-gaap:LandMember 2021-12-31 0000925528 us-gaap:LandImprovementsMember 2021-12-31 0000925528 us-gaap:FurnitureAndFixturesMember 2021-12-31 0000925528 us-gaap:EquipmentMember 2021-12-31 0000925528 us-gaap:ComputerEquipmentMember 2021-12-31 0000925528 us-gaap:BuildingMember 2021-12-31 0000925528 us-gaap:BuildingImprovementsMember 2021-12-31 0000925528 us-gaap:AssetUnderConstructionMember 2021-12-31 0000925528 us-gaap:AssetsHeldUnderCapitalLeasesMember 2021-12-31 0000925528 hdsn:CylindersMember 2021-12-31 0000925528 us-gaap:VehiclesMember 2020-12-31 0000925528 us-gaap:LeaseholdImprovementsMember 2020-12-31 0000925528 us-gaap:LandMember 2020-12-31 0000925528 us-gaap:LandImprovementsMember 2020-12-31 0000925528 us-gaap:FurnitureAndFixturesMember 2020-12-31 0000925528 us-gaap:EquipmentMember 2020-12-31 0000925528 us-gaap:ComputerEquipmentMember 2020-12-31 0000925528 us-gaap:BuildingMember 2020-12-31 0000925528 us-gaap:BuildingImprovementsMember 2020-12-31 0000925528 us-gaap:AssetUnderConstructionMember 2020-12-31 0000925528 us-gaap:AssetsHeldUnderCapitalLeasesMember 2020-12-31 0000925528 hdsn:CylindersMember 2020-12-31 0000925528 us-gaap:RetainedEarningsMember 2021-01-01 2021-12-31 0000925528 us-gaap:RetainedEarningsMember 2020-01-01 2020-12-31 0000925528 hdsn:RevolvingCreditFacilityAmendmentMember hdsn:WellsFargoMember us-gaap:SubsequentEventMember 2022-03-02 2022-03-02 0000925528 hdsn:FirstInLastOutTrancheMember hdsn:WellsFargoMember us-gaap:SubsequentEventMember 2022-03-02 2022-03-02 0000925528 2020-07-01 2020-09-30 0000925528 us-gaap:PreferredStockMember 2021-12-31 0000925528 us-gaap:PreferredStockMember 2020-12-31 0000925528 us-gaap:SeriesAPreferredStockMember 2021-12-31 0000925528 us-gaap:SeriesAPreferredStockMember 2020-12-31 0000925528 us-gaap:StateAndLocalJurisdictionMember 2021-12-31 0000925528 hdsn:NoExpirationMember 2021-12-31 0000925528 us-gaap:AccountsPayableAndAccruedLiabilitiesMember 2021-12-31 0000925528 us-gaap:AccountsPayableAndAccruedLiabilitiesMember 2020-12-31 0000925528 2019-01-01 0000925528 us-gaap:SellingGeneralAndAdministrativeExpensesMember 2021-01-01 2021-12-31 0000925528 us-gaap:SellingGeneralAndAdministrativeExpensesMember 2020-01-01 2020-12-31 0000925528 us-gaap:LetterOfCreditMember hdsn:WellsFargoMember us-gaap:SubsequentEventMember 2022-03-02 0000925528 hdsn:SwingLineLoanMember hdsn:WellsFargoMember us-gaap:SubsequentEventMember 2022-03-02 0000925528 hdsn:AmendedAndRestatedRevolvingCreditAndSecurityAgreementMember hdsn:WellsFargoMember us-gaap:SubsequentEventMember 2022-03-02 0000925528 hdsn:WellsFargoMember us-gaap:SubsequentEventMember 2022-03-02 0000925528 hdsn:WaiverAndFirstAmendmentToTermLoanCreditAndSecurityAgreementMember 2020-04-23 0000925528 hdsn:FifthAmendmentToTermLoanCreditAndSecurityAgreementMember 2020-04-23 0000925528 us-gaap:LetterOfCreditMember hdsn:WellsFargoMember 2019-12-19 0000925528 hdsn:SwingLineLoanMember hdsn:WellsFargoMember 2019-12-19 0000925528 hdsn:AmendedAndRestatedRevolvingCreditAndSecurityAgreementMember hdsn:WellsFargoMember 2019-12-19 0000925528 srt:MinimumMember hdsn:VehicleAndEquipmentLoansMember 2021-12-31 0000925528 srt:MaximumMember hdsn:VehicleAndEquipmentLoansMember 2021-12-31 0000925528 hdsn:VehicleAndEquipmentLoansMember 2021-01-01 2021-12-31 0000925528 hdsn:WoodcliffLakeNewJerseyMember 2021-01-01 2021-12-31 0000925528 hdsn:StonyPointNyMemberMember 2021-01-01 2021-12-31 0000925528 hdsn:SmyrnaGeorgiaMemberMember 2021-01-01 2021-12-31 0000925528 hdsn:OntarioCaliforniaMemberMember 2021-01-01 2021-12-31 0000925528 hdsn:LongBeachCaliforniaMember 2021-01-01 2021-12-31 0000925528 hdsn:HampsteadNewHampshireMemberMember 2021-01-01 2021-12-31 0000925528 hdsn:EscondidoCaliforniaMember 2021-01-01 2021-12-31 0000925528 hdsn:CharlotteNorthCarolinaMember 2021-01-01 2021-12-31 0000925528 hdsn:ChampaignIllinoisMember 2021-01-01 2021-12-31 0000925528 hdsn:ChampaignIllinois2ndLocationMember 2021-01-01 2021-12-31 0000925528 hdsn:AuburnWashingtonMember 2021-01-01 2021-12-31 0000925528 srt:MinimumMember us-gaap:NoncompeteAgreementsMember 2021-01-01 2021-12-31 0000925528 srt:MinimumMember us-gaap:CustomerRelationshipsMember 2021-01-01 2021-12-31 0000925528 srt:MaximumMember us-gaap:NoncompeteAgreementsMember 2021-01-01 2021-12-31 0000925528 srt:MaximumMember us-gaap:CustomerRelationshipsMember 2021-01-01 2021-12-31 0000925528 us-gaap:AboveMarketLeasesMember 2021-01-01 2021-12-31 0000925528 us-gaap:NoncompeteAgreementsMember 2021-12-31 0000925528 us-gaap:CustomerRelationshipsMember 2021-12-31 0000925528 us-gaap:AboveMarketLeasesMember 2021-12-31 0000925528 us-gaap:NoncompeteAgreementsMember 2020-12-31 0000925528 us-gaap:CustomerRelationshipsMember 2020-12-31 0000925528 us-gaap:AboveMarketLeasesMember 2020-12-31 0000925528 2018-12-31 0000925528 hdsn:TwoThousandAndTwentyStockIncentivePlanMember 2020-06-11 0000925528 hdsn:TwoThousandAndEighteenStockIncentivePlanMember 2018-06-07 0000925528 hdsn:TwoThousandAndFourteenStockIncentivePlanMember 2014-09-17 0000925528 hdsn:CaresActLoanMember hdsn:PaycheckProtectionProgramMember 2020-04-23 0000925528 hdsn:TermLoanFacilityMember 2017-10-10 0000925528 hdsn:TermLoanFacilityMember us-gaap:SubsequentEventMember 2022-03-02 0000925528 hdsn:FirstInLastOutTrancheMember hdsn:RevolvingCreditFacilityAmendmentMember us-gaap:SubsequentEventMember hdsn:SecuredOvernightFinancingRateMember 2022-03-02 2022-03-02 0000925528 us-gaap:SubsequentEventMember us-gaap:FederalFundsPurchasedMember 2022-03-02 2022-03-02 0000925528 us-gaap:SubsequentEventMember hdsn:SecuredOvernightFinancingRateMember 2022-03-02 2022-03-02 0000925528 hdsn:RevolvingCreditFacilityAmendmentMember us-gaap:SubsequentEventMember 2022-03-02 2022-03-02 0000925528 us-gaap:SubsequentEventMember 2022-03-02 2022-03-02 0000925528 srt:MinimumMember hdsn:AmendedAndRestatedRevolvingCreditAndSecurityAgreementMember hdsn:EurodollarRateLoansMember us-gaap:EurodollarMember 2019-12-19 2019-12-19 0000925528 srt:MaximumMember hdsn:AmendedAndRestatedRevolvingCreditAndSecurityAgreementMember hdsn:EurodollarRateLoansMember us-gaap:EurodollarMember 2019-12-19 2019-12-19 0000925528 hdsn:AmendedAndRestatedRevolvingCreditAndSecurityAgreementMember hdsn:DomesticRateLoansMember us-gaap:FederalFundsPurchasedMember 2019-12-19 2019-12-19 0000925528 hdsn:AmendedAndRestatedRevolvingCreditAndSecurityAgreementMember hdsn:DomesticRateLoansMember hdsn:LondonInterbankOfferedRateDailyLiborMember 2019-12-19 2019-12-19 0000925528 us-gaap:ProductMember 2021-01-01 2021-12-31 0000925528 us-gaap:ProductMember 2020-01-01 2020-12-31 0000925528 hdsn:OneCustomerMember us-gaap:RevenueFromContractWithCustomerMember us-gaap:CustomerConcentrationRiskMember 2021-01-01 2021-12-31 0000925528 hdsn:OneCustomerMember us-gaap:RevenueFromContractWithCustomerMember us-gaap:CustomerConcentrationRiskMember 2020-01-01 2020-12-31 0000925528 2019-12-31 0000925528 us-gaap:AdditionalPaidInCapitalMember 2021-01-01 2021-12-31 0000925528 us-gaap:AdditionalPaidInCapitalMember 2020-01-01 2020-12-31 0000925528 hdsn:OneCustomerMember us-gaap:AccountsReceivableMember us-gaap:CustomerConcentrationRiskMember 2021-12-31 0000925528 hdsn:OneCustomerMember us-gaap:AccountsReceivableMember us-gaap:CustomerConcentrationRiskMember 2020-12-31 0000925528 hdsn:TermLoanFacilityMember 2021-01-01 2021-12-31 0000925528 hdsn:TermLoanFacilityMember 2020-01-01 2020-12-31 0000925528 hdsn:WellsFargoMember hdsn:RevolverGuarantyAndSecurityAgreementMember 2021-01-01 2021-12-31 0000925528 hdsn:TwentyTwentyOneTermLoanFacilityMember us-gaap:SubsequentEventMember 2022-01-01 2022-03-31 0000925528 srt:MaximumMember hdsn:TermLoanFacilityMember 2021-01-01 2021-12-31 0000925528 hdsn:CaresActLoanMember hdsn:PaycheckProtectionProgramMember 2021-07-01 2021-09-30 0000925528 hdsn:NoExpirationMember 2021-01-01 2021-12-31 0000925528 srt:VicePresidentMember 2020-01-01 2020-01-01 0000925528 srt:VicePresidentMember 2019-05-06 2019-12-31 0000925528 hdsn:WellsFargoMember hdsn:FCCRMember us-gaap:SubsequentEventMember 2022-03-02 2022-03-02 0000925528 us-gaap:RevolvingCreditFacilityMember hdsn:WellsFargoMember 2019-12-19 2019-12-19 0000925528 hdsn:FourthAmendmentMember 2019-12-19 0000925528 srt:MinimumMember hdsn:WellsFargoMember us-gaap:SubsequentEventMember 2022-03-02 0000925528 srt:MaximumMember hdsn:WellsFargoMember us-gaap:SubsequentEventMember 2022-03-02 0000925528 us-gaap:RevolvingCreditFacilityMember hdsn:WellsFargoMember 2019-12-19 0000925528 hdsn:RiversideCaliforniaMemberMember 2021-01-01 2021-12-31 0000925528 hdsn:RantoulIllinoisMember 2021-01-01 2021-12-31 0000925528 hdsn:BatonRougeLouisianaMember 2021-01-01 2021-12-31 0000925528 srt:MinimumMember hdsn:WellsFargoMember hdsn:FCCRMember us-gaap:SubsequentEventMember 2022-03-02 2022-03-02 0000925528 srt:MaximumMember hdsn:WellsFargoMember hdsn:FCCRMember us-gaap:SubsequentEventMember 2022-03-02 2022-03-02 0000925528 us-gaap:RevolvingCreditFacilityMember hdsn:WellsFargoMember hdsn:FCCRMember 2019-12-19 2019-12-19 0000925528 2021-12-31 0000925528 hdsn:TermLoanFacilityMember us-gaap:SubsequentEventMember 2027-03-02 2027-03-02 0000925528 hdsn:TermLoanFacilityMember us-gaap:SubsequentEventMember 2027-03-02 0000925528 hdsn:FourthAmendmentMember 2021-01-01 2021-12-31 0000925528 hdsn:TermLoanFacilityMember us-gaap:SubsequentEventMember 2022-03-02 2022-03-02 0000925528 hdsn:EffectiveMarch312020Member hdsn:FourthAmendmentMember 2019-12-19 2019-12-19 0000925528 hdsn:EffectiveDecember312020Member hdsn:FourthAmendmentMember 2019-12-19 2019-12-19 0000925528 hdsn:FourthAmendmentMember 2019-12-19 2019-12-19 0000925528 hdsn:FourthAmendmentMember 2021-12-01 2021-12-31 0000925528 hdsn:FourthAmendmentMember 2021-09-01 2021-09-30 0000925528 hdsn:FourthAmendmentMember 2021-06-01 2021-06-30 0000925528 hdsn:FourthAmendmentMember 2021-03-01 2021-03-31 0000925528 hdsn:FourthAmendmentMember 2020-12-01 2020-12-31 0000925528 hdsn:FourthAmendmentMember 2020-09-01 2020-09-30 0000925528 hdsn:FourthAmendmentMember 2020-06-01 2020-06-30 0000925528 hdsn:FourthAmendmentMember 2020-03-01 2020-03-31 0000925528 hdsn:FourthAmendmentMember 2019-12-01 2019-12-31 0000925528 hdsn:FourthAmendmentMember 2019-09-01 2019-09-30 0000925528 hdsn:CaresActLoanMember hdsn:PaycheckProtectionProgramMember 2020-04-23 2020-04-23 0000925528 hdsn:ThroughMarch312020Member hdsn:FourthAmendmentMember 2019-12-19 2019-12-19 0000925528 hdsn:FromApril12021AndThereafterMember hdsn:FourthAmendmentMember 2019-12-19 2019-12-19 0000925528 hdsn:FromApril12020ThroughMarch312021Member hdsn:FourthAmendmentMember 2019-12-19 2019-12-19 0000925528 hdsn:FourthAmendmentMember hdsn:TermLoanMember 2019-12-19 2019-12-19 0000925528 srt:MinimumMember hdsn:RevolvingCreditFacilityAmendmentMember us-gaap:SubsequentEventMember hdsn:SecuredOvernightFinancingRateMember 2022-03-02 0000925528 srt:MinimumMember hdsn:RevolvingCreditFacilityAmendmentMember us-gaap:SubsequentEventMember hdsn:PrimeCommercialLendingRateOfWellsFargoMember 2022-03-02 0000925528 srt:MaximumMember hdsn:RevolvingCreditFacilityAmendmentMember us-gaap:SubsequentEventMember hdsn:SecuredOvernightFinancingRateMember 2022-03-02 0000925528 hdsn:SecuredOvernightFinancingRateAndFirstInLastOutTrancheMember hdsn:RevolvingCreditFacilityAmendmentMember us-gaap:SubsequentEventMember hdsn:SecuredOvernightFinancingRateMember 2022-03-02 0000925528 hdsn:FirstInLastOutTrancheMember hdsn:RevolvingCreditFacilityAmendmentMember us-gaap:SubsequentEventMember hdsn:SecuredOvernightFinancingRateMember 2022-03-02 0000925528 hdsn:FirstInLastOutTrancheMember hdsn:RevolvingCreditFacilityAmendmentMember us-gaap:SubsequentEventMember hdsn:PrimeCommercialLendingRateOfWellsFargoMember 2022-03-02 0000925528 srt:MinimumMember us-gaap:SubsequentEventMember hdsn:SecuredOvernightFinancingRatePlusApplicableLeverageRatioMember 2022-03-02 0000925528 srt:MinimumMember us-gaap:SubsequentEventMember hdsn:ApplicableLeverageRationMember 2022-03-02 0000925528 srt:MaximumMember us-gaap:SubsequentEventMember hdsn:SecuredOvernightFinancingRatePlusApplicableLeverageRatioMember 2022-03-02 0000925528 hdsn:RevolvingCreditFacilityAmendmentMember us-gaap:SubsequentEventMember hdsn:SecuredOvernightFinancingRateMember 2022-03-02 0000925528 hdsn:RevolvingCreditFacilityAmendmentMember us-gaap:SubsequentEventMember hdsn:PrimeCommercialLendingRateOfWellsFargoMember 2022-03-02 0000925528 us-gaap:SubsequentEventMember hdsn:ApplicableLeverageRationMember 2022-03-02 0000925528 hdsn:RevolvingCreditFacilityAmendmentMember us-gaap:SubsequentEventMember 2022-03-02 0000925528 srt:MinimumMember hdsn:AmendedAndRestatedRevolvingCreditAndSecurityAgreementMember hdsn:DomesticRateLoansMember 2019-12-19 0000925528 srt:MaximumMember hdsn:AmendedAndRestatedRevolvingCreditAndSecurityAgreementMember hdsn:DomesticRateLoansMember 2019-12-19 0000925528 2016-07-01 2016-07-31 0000925528 2020-12-31 0000925528 hdsn:TermLoanFacilityMember 2021-12-31 0000925528 2020-01-01 2020-12-31 0000925528 2021-06-30 0000925528 2022-03-13 0000925528 2021-01-01 2021-12-31 xbrli:shares iso4217:USD hdsn:item xbrli:pure iso4217:USD xbrli:shares hdsn:segment

Table of Contents

​

​

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 20549

FORM 10-K

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

For the fiscal year ended December 31, 2021

OR

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

For the transition period from ____________ to ____________

Commission file number 1-13412

Hudson Technologies, Inc.

(Exact name of registrant as specified in its charter)

​

New York |  | 13-3641539
(State or Other Jurisdiction of Incorporation or Organization) |  | (I.R.S. Employer Identification No.)
300 Tice Boulevard |  |
Suite 290 |  |
Woodcliff Lake, New Jersey |  | 07677
(Address of Principal Executive Offices) |  | (Zip Code)

​

Registrant’s telephone number, including area code (845) 735-6000

​

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

​

| ​ | ​ |  |
Title of Each Class | ​ | Trading Symbol(s) |  | Name of each exchange on which registered
Common stock, $0.01 par value | ​ | HDSN |  | The NASDAQ Stock Market LLC (NASDAQ Capital Market)

​

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 ☒ 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 ☒ 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. ☒ Yes ☐ No

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). ☒ Yes ☐ No

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer”, “accelerated filer”, “smaller reporting company”, and “emerging growth company” in Rule 12b-2 of the Exchange Act:

​

Large accelerated filer | ☐ | Accelerated filer | ☒
Non-accelerated filer | ☐ | Smaller reporting company | ☒
|  | Emerging growth company | ☐

​

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Indicate by check mark whether the registrant has filed a report on and attestation to its management's assessment of the effectiveness of its internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its audit report. ☒

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

The aggregate market value of registrant’s common stock held by non-affiliates at June 30, 2021 was approximately $141,917,622.

As of March 13, 2022, there were 44,810,415 shares of the registrant’s common stock outstanding.

DOCUMENTS INCORPORATED BY REFERENCE:

Portions of the Registrant’s Proxy Statement for its Annual Meeting of Stockholders to be held on June 9, 2022, are incorporated by reference in Part III of this Report. Except as expressly incorporated by reference, the Registrant’s Proxy Statement shall not be deemed to be part of this Form 10-K.

​

​

​

​

​

Table of Contents

Hudson Technologies, Inc.

Index

​

​ | ​ | ​ | ​ | ​ | ​
Part |  | Item |  | Page
Part I. | ​ | Item 1- | Business | ​ | 3
​ | ​ | Item 1A- | Risk Factors | ​ | 9
​ | ​ | Item 1B - | Unresolved Staff Comments | ​ | 13
​ | ​ | Item 2 - | Properties | ​ | 13
​ | ​ | Item 3 - | Legal Proceedings | ​ | 13
​ | ​ | Item 4 - | Mine Safety Disclosures | ​ | 13
​ | ​ | ​ | ​ | ​ | ​
Part II. | ​ | Item 5 - | Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities | ​ | 13
​ | ​ | Item 6 - | [Reserved] | ​ | 14
​ | ​ | Item 7 - | Management's Discussion and Analysis of Financial Condition and Results of Operations | ​ | 14
​ | ​ | Item 7A - | Quantitative and Qualitative Disclosures About Market Risk | ​ | 25
​ | ​ | Item 8 - | Financial Statements and Supplementary Data | ​ | 26
​ | ​ | Item 9 - | Changes in and Disagreements with Accountants on Accounting and Financial Disclosure | ​ | 26
​ | ​ | Item 9A - | Controls and Procedures | ​ | 29
​ | ​ | Item 9B - | Other Information | ​ | 29
​ | ​ | Item 9C - | Disclosure Regarding Foreign Jurisdictions that Prevent Inspections | ​ | 29
​ | ​ | ​ | ​ | ​ | ​
Part III. | ​ | Item 10 - | Directors, Executive Officers and Corporate Governance | ​ | 29
​ | ​ | Item 11 - | Executive Compensation | ​ | 29
​ | ​ | Item 12 - | Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters | ​ | 29
​ | ​ | Item 13 - | Certain Relationships and Related Transactions, and Director Independence | ​ | 29
​ | ​ | Item 14 - | Principal Accountant Fees and Services | ​ | 30
​ | ​ | ​ | ​ | ​ | ​
Part IV. | ​ | Item 15 - | Exhibits and Financial Statement Schedules | ​ | 31
​ | ​ | Item 16 - | Form 10-K Summary | ​ | 34
​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Signatures | ​ | ​ | 63

​

​

​

2

Table of Contents

Part I

Item 1. Business

General

Hudson Technologies, Inc. (“Hudson” or the “Company”), 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. Hudson has proven, reliable programs that meet customer refrigerant needs by providing environmentally sustainable solutions from initial sale of refrigerant gas through recovery, reclamation and reuse, peak operating performance of equipment through energy efficiency and emergency air conditioning and refrigeration system repair, to final refrigerant disposal and carbon credit trading.

The Company’s operations consist of one reportable segment. The Company's products and services are primarily used in commercial air conditioning, industrial processing and refrigeration systems, and include refrigerant and industrial gas sales, refrigerant management services consisting primarily of reclamation of refrigerants and RefrigerantSide® Services performed at a customer's site. RefrigerantSide® Services consists of system decontamination to remove moisture, oils and other contaminants intended to restore systems to designed capacity. In addition, the Company’s SmartEnergy OPS® service is a web-based real time continuous monitoring service applicable to a facility’s refrigeration systems and other energy systems. The Company’s Chiller Chemistry® and Chill Smart® services are also predictive and diagnostic service offerings. As a component of the Company’s products and services, the Company also participates in the generation of carbon offset projects. The Company operates principally through its wholly-owned subsidiary, Hudson Technologies Company, and Aspen Refrigerants (“Aspen” or “ARI”), a division of 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 300 Tice Boulevard, Suite 290, Woodcliff Lake, New Jersey and its telephone number is (845) 735-6000. The Company maintains a website at www.hudsontech.com, the contents of which are not incorporated into this filing.

Industry Background

The Company participates in an industry that is highly regulated, and changes in the regulations affecting our business could affect our operating results. Currently the Company purchases virgin hydrofluoro-olefins (“HFO”) and hydrofluorocarbon (“HFC”) refrigerants and reclaimable, primarily hydrochlorofluorocarbon (“HCFC”), HFC and chlorofluorocarbon (“CFC”) refrigerants from suppliers and its customers. Effective January 1, 1996, the Clean Air Act, as amended (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 established production and consumption allowances for HCFC refrigerants and which imposed limitations on the importation of certain virgin HCFC refrigerants. Under the Act, production of certain virgin HCFC refrigerants was phased out on December 31, 2019 and production of all virgin HCFC refrigerants is scheduled to be phased out by 2030.

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. The Act prohibits the venting of CFC, HFC and HCFC refrigerants, and prohibits and/or phases down the production of CFC, HCFC and HFC refrigerants.

The Act also mandates the recovery of CFC and HCFC refrigerants and also promotes and encourages re-use and reclamation of CFC and HCFC refrigerants. Under the Act, owners, operators and companies servicing cooling equipment utilizing CFC and HCFC refrigerants are responsible for the integrity of the systems regardless of the refrigerant being used. In November 2016, the EPA issued a final rule extending these requirements to HFCs and to certain other refrigerants that are approved by the EPA as alternatives for CFC and HCFC refrigerants (the “608 Rule”).

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 sectors 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

3

Table of Contents

that utilize HFC refrigerants and hydrofluoro-olefins (“HFO”). Certain HFC refrigerants are highly weighted greenhouse gases that are believed to contribute to global warming and climate change and, as a result, are now subject to various state regulations relating to the sale, use and emissions of HFC refrigerants, as well as federal restrictions on the production and consumption of HFCs (as set forth below). The Company expects that HFC refrigerants eventually will be replaced by HFOs or other types of products with lower global warming potentials.

In October 2016, more than 200 countries, including the United States, agreed to amend the Montreal Protocol to phase down production of HFCs by 85% by 2047. The amendment establishes timetables for all developed and developing countries to freeze and then reduce production and use of HFCs, with the first reductions by developed countries in 2019. The amendment became effective January 1, 2019 as more than twenty countries have ratified the amendment.

In December 2020, Congress enacted the American Innovation and Manufacturing Act of 2020 (the “AIM Act”) in the United States that will require the phasedown of virgin production and consumption of HFCs, which will also increase opportunities for reclamation of HFCs.

AIM Act

On September 23, 2021, the United States Environmental Protection Agency (“EPA”) issued the final rule establishing the framework to allocate allowances for virgin production and consumption of HFCs. The EPA is responsible for the administration of the HFC phase down enacted by Congress under the AIM Act.

The AIM Act directs the EPA to address the reduction in virgin HFCs and provides authority to do so in three respects:

| 1) | phase down the production and consumption of listed HFCs,

| 2) | manage these HFCs and their substitutes, and

| 3) | facilitate the transition to next-generation technologies.

Congress also required that EPA shall consider ways to promote reclamation in all phases of its implementation of the AIM Act. The final rule introduces a stepdown of 10% from baseline levels and a subsequent allowance rule must establish a cumulative 40% reduction in the baseline for 2024. 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, with allowances for 2023 and beyond to be determined at a later date. Reclamation will be critical to maintaining necessary HFC supply levels to ensure an orderly phasedown.

Products and Services

Sustainability

From its inception, the Company has sold refrigerants, and has provided refrigerant reclamation and refrigerant management services that are designed to recover and reuse refrigerants, thereby protecting the environment from release of refrigerants to the atmosphere and the corresponding ozone depletion and global warming impact and supporting the circular economy. 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. In addition, the Company participates in the creation and monetization of verified emission reductions utilizing third party protocols.

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 (“AHRI”), and banking (storage) services tailored to individual customer requirements. The Company also separates “crossed” (i.e. commingled) refrigerants and provides re-usable cylinder refurbishment and hydrostatic testing services.

The Company has also created alternative solutions to reactive and preventative maintenance procedures that are performed on commercial and industrial refrigeration systems. These services, known as RefrigerantSide® Services, reduce the system’s energy consumption and improve the system’s operating performance, and complement the Company’s refrigerant sales and refrigerant

4

Table of Contents

reclamation and management services. These services also preserve system refrigerant charges, reducing the need for manufacture of additional refrigerant.

Refrigerant and Industrial Gas Sales

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

The Company also sells industrial gases to a variety of industry customers, predominantly to users in or involved with the US Military. In July 2016 the Company was awarded, as prime contractor, a five-year contract, together with a five-year renewal option which has been exercised in July 2021, by the United States Defense Logistics Agency (“DLA”) for the management, supply, and sale of refrigerants, compressed gases, cylinders and related services.

Carbon Offset Projects

CFC refrigerants are ozone depleting substances and are also highly weighted greenhouse gases that contribute to global warming and climate change. The destruction of CFC refrigerants may be eligible for verified emission reductions that can be converted and monetized into carbon offset credits, which then can 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.

In October 2015, the American Carbon Registry (“ACR”) established a methodology to provide, among other things, a quantification framework for the creation of carbon offset credits for the use of certified reclaimed HFC refrigerants. The Company is pursuing opportunities to acquire HFC 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 reclamation of HFC refrigerants.

RefrigerantSide® 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, process cooling 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.

The Company has also been awarded several US patents for its SmartEnergy OPS®, 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. This service is a web-based real time continuous monitoring service applicable to a facility’s chiller plant systems. The SmartEnergy OPS® offering enables customers to monitor and improve their chiller plant performance and proactively identify and correct system inefficiencies. SmartEnergy OPS® is able to identify specific inefficiencies in the operation of chiller plant systems and, when used with Hudson’s RefrigerantSide ® Services, can increase the efficiency of the operating systems thereby reducing energy usage and costs. Improving the system efficiency reduces power consumption thereby directly reducing CO 2 emissions at the power plants or onsite. Lastly, the Company’s ChillSmart® offering, which combines the system optimization with the Company’s Chiller Chemistry ® offering, provides a snapshot of a packaged chiller’s operating efficiency and health. ChillSmart® provides a very effective predictive maintenance tool and helps our customers to identify the operating chillers that cause higher operating costs.

5

Table of Contents

The Company’s engineers who developed and support SmartEnergy OPS® are recognized as Energy Experts and Qualified Best Practices Specialists by the United States Department of Energy (“DOE”) in the areas of Steam and Process Heating under the DOE “Best Practices” program, and are the Lead International Energy Experts for steam, chillers and refrigeration systems for the United Nations Industrial Development Organization (“UNIDO”). The Company’s staff have trained more than 4,000 industrial plant personnel in the US and internationally and have developed, and are currently delivering, training curriculums in 12 different countries. The Company’s staff have completed more than 200 industrial ESAs in the US and internationally.

Suppliers

The Company purchases refrigerants from a variety of manufacturers, wholesalers, distributors, bulk gas brokers and from other sources within the air conditioning, refrigeration and automotive aftermarket industries.

Customers

The Company provides its products and 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. The Company generates sales by customer purchase order on a real-time basis and therefore does not carry a backlog of sales.

For the year ended December 31, 2021, one customer accounted for 10% of the Company’s revenues and at December 31, 2021, there were $3.1 million of outstanding receivables from this customer. For the year ended December 31, 2020, one customer accounted for 14% of the Company’s revenues and at December 31, 2020, there were $2.9 million of outstanding receivables from this customer.

Marketing

Marketing programs are conducted through the efforts of the Company's executive officers, marketing personnel and Company sales personnel. Hudson employs various marketing methods, including digital marketing, segment targeted outreach, social media, trade and industry events, webinars, in-person solicitation, print advertising, response to quotation requests and the internet through the Company’s websites (www.hudsontech.com and www.ASPENRefrigerants.com). Information on the Company's websites are 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.

Competition

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 may possess greater financial, marketing, distribution and other resources for the sale and distribution of refrigerants than the Company.

Hudson's RefrigerantSide® Services provide 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.

Risk Management

The Company carries insurance coverage that it considers sufficient to protect the Company's assets and operations. 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.

6

Table of Contents

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 $10,000,000 per occurrence, and $10,000,000 annual aggregate, for events occurring subsequent to November 1996.

Government Regulation

The business of refrigerant and industrial gas 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 (“OSHA”) and the United States Department of Transportation (“DOT”).

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 AHRI 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 AHRI standards. The Company is one of only four certified refrigerant testing laboratories in the United States under AHRI’s laboratory certification program, which is a voluntary program that certifies the ability of a laboratory to test refrigerant in accordance with the AHRI 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 reporting requirements arising out of the importation of certain HCFCs, and arising out of the importation, purchase, production, use and/or emissions of certain greenhouse gases, including HFCs.

The Company is also subject to regulations adopted by the DOT which classify most refrigerants and industrial gases 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

7

Table of Contents

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 is also subject to regulations adopted by the California Air Resources Board which impose certain reporting requirements arising out of the reclamation and sale of refrigerants that takes place within the State of California.

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

Quality Assurance & Environmental Compliance

The Company utilizes in-house quality and regulatory compliance control procedures. Hudson maintains its own analytical testing laboratories, which are AHRI certified, to assure that reclaimed refrigerants comply with AHRI purity standards and employs portable testing equipment when performing on-site services to verify certain quality specifications. The Company employs twelve persons engaged full-time in quality control and to monitor the Company's operations for regulatory compliance.

Human Capital Resources

On March 4, 2022, the Company had 217 full 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 it has good relations with its employees.

Patents and Proprietary Information

The Company holds several U.S. and foreign patents, as well as pending patent applications, related to certain RefrigerantSide® Services and supporting systems developed by the Company for systems and processes for measuring and improving the efficiency of refrigeration systems, and for certain refrigerant recycling and reclamation technologies. These patents will expire between January 2023 and July 2035.

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.

SEC Filings

The Company makes available on its internet website copies of its Annual Report on Form 10-K, Quarterly Reports on Form 10-Q, Current Reports on Form 8-K, and amendments thereto, as soon as reasonably practicable after they are filed with the Securities and Exchange Commission.

8

Table of Contents

Item 1A. Risk Factors

There are many important factors, including those discussed below (and above as described under “Patents and Proprietary Information”), 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.

Risks Related to Business Strategy and Operations

Our existing and future debt obligations could impair our liquidity and financial condition.

Our existing credit facilities, consisting of an asset-based lending facility of up to $90 million from Wells Fargo Bank, National Association (“Wells Fargo Bank”) and other lenders, and a term loan of $85 million from funds advised by TCW Asset Management Company, LLC, are secured by substantially all of our assets and the asset-based lending facility contains formulas that limit the amount of our future borrowings under that facility. Moreover, the terms of our credit facilities also include financial and negative covenants that, among other things, may limit our ability to incur additional indebtedness. If we violate any loan covenants and do not obtain a waiver from our lenders, our indebtedness under the credit facilities would become immediately due and payable, and the lenders could foreclose on their 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 revenues, results of operations and cash flows could be materially and adversely affected by changes in commodity prices.

Our revenues, results of operations and cash flows are affected by market prices for refrigerant gases. Commodity prices generally are affected by a wide range of factors beyond our control, including weather, seasonality, the availability and adequacy of supply, government regulation and policies and general political and economic conditions. We are exposed to fluctuating commodity prices as the result of our inventory of various refrigerant gases. At any time, our inventory levels may be substantial. We have processes in place to monitor exposures to these risks and engage in strategies to manage these risks. If these controls and strategies are not successful in mitigating our exposure to these fluctuations, we could be materially and adversely affected.

Our business has been impacted by the COVID-19 pandemic.

The public health crisis caused by the COVID-19 pandemic and the measures being taken by governments, businesses, including us, and the public at large to limit COVID-19's spread may have certain negative impacts on our business including, without limitation, the following:

● | We may experience a further decrease in sales due to the COVID-19 pandemic. In particular, sales of our products to customers, such as schools, offices and government facilities, which have shut down, have been negatively impacted. If the COVID-19 pandemic intensifies and expands geographically, its negative impacts on our sales and collectability of receivables could be more prolonged and may become more severe.

● | Although we have not experienced this during 2021, future potential disruptions in supply chains may place constraints on our ability to source refrigerants, which may increase our processing costs.

● | Governmental authorities in the United States and throughout the world may continue to increase or impose new income taxes or indirect taxes, or revise interpretations of existing tax rules and regulations, as a means of financing the costs of stimulus and other measures enacted or taken, or that may be enacted or taken in the future, to protect populations and economies from the impact of the COVID-19 pandemic. Such actions could have an adverse effect on our results of operations and cash flows.

● | As a result of the COVID-19 pandemic, including related governmental guidance or directives, we have required most office-based employees to work remotely. We may experience reductions in productivity and disruptions to our business routines while our remote work policy remains in place.

9

Table of Contents

| ● | Attempting to comply with rapidly evolving and conflicting legal requirements regarding vaccination and/or mandatory testing of our workforce.

| ● | Actions we have taken or may take, or decisions we have made or may make, as a consequence of the COVID-19 pandemic may result in legal claims or litigation against us.

Any of the negative impacts of the COVID-19 pandemic, including those described above, alone or in combination with others, may have a material adverse effect on our results of operations, financial condition and cash flows. The full extent to which the COVID-19 pandemic will negatively affect our results of operations, financial condition and cash flows will depend on future developments that are highly uncertain and cannot be predicted, including the scope and duration of the pandemic and actions taken by governmental authorities and other third parties in response to the pandemic.

We may need additional financing to satisfy our future capital requirements, which may not be readily available to us.

Our capital requirements may be significant 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 led by Wells Fargo Bank that expires in March 2027 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 and term loan. There can be no assurance that we will be able to 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.

Adverse weather or economic downturn could adversely impact our financial results.

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 cool temperatures in the spring and summer tend 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:

Liquidity

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

Demand

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

Financial Covenants

These conditions could impact our ability to meet our loan covenants which, if we are unable to obtain a waiver from our lenders, could materially adversely affect our business and future financial condition and could require us to curtail or otherwise cease our existing operations.

Our business is impacted by customer concentration.

In July 2016, we were awarded, as prime contractor, a five-year contract, including a five-year renewal option (which has been exercised), by the United States Defense Logistics Agency (“DLA”) for the management and supply of refrigerants, compressed gases, cylinders and related items to US Military commands and installations, Federal civilian agencies and foreign militaries. Our contract

10

Table of Contents

with DLA expires in July 2026. For the years ended December 31, 2021 and 2020, the DLA accounted for 10% and 14% of our revenues. The loss of DLA as a customer could have a material adverse effect on our financial position and results of operations.

Risks Related to Regulatory and Environmental Matters

The nature of our business exposes us to potential liability.

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 financial condition is substantially dependent on the sale and continued environmental regulation of refrigerants.

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.

Our business is subject to significant regulatory compliance burdens.

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 OSHA and DOT. Although we believe that we are in material compliance with all applicable regulations material to our business operations, amendments to existing statutes and regulations or adoption of new statutes and regulations that 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.

A number of factors could negatively impact the price and/or availability of refrigerants, which would, in turn, adversely affect our business and financial condition.

Refrigerant sales continue to represent a significant majority 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 limitation: (i) commercial production and consumption limitations imposed by the Act and legislative limitations and ban on HCFC refrigerants; (ii) the amendment to the Montreal Protocol, if ratified, and any legislation and regulation enacted to implement the amendment, could impose limitations on production and consumption of HFC refrigerants; (iii) introduction of new refrigerants and air conditioning and refrigeration equipment; (iv) price competition resulting from additional market entrants; (v) changes in government regulation on the use and production of refrigerants; and (vi) reduction in price and/or demand for refrigerants. Sufficient amounts of new and/or used refrigerants may not be available to us in the future, particularly as a result of the further phase down of HFC production, 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.

11

Table of Contents

Issues relating to potential global warming and climate change could have an impact on our business.

Refrigerants are considered to be strong greenhouse gases that are believed to contribute to global warming and climate change and are now subject to various state and federal regulations relating to the sale, use and emissions of refrigerants. Current and future global warming and 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 increased administrative costs, decreased demand in the marketplace for our products, and/or increased costs for our supplies and products. In addition, an amendment to the Montreal Protocol has established timetables for all developed and developing countries to freeze and then reduce production and use of HFCs by 85% by 2047, with the first reductions by developed countries in 2019. The amendment became effective January 1, 2019. In December 2020, legislation was enacted in the United States that will require the phasedown of virgin production of HFCs.

Risks Related to Our Common Stock and Other General Risks

As a result of competition, and the strength of some of our competitors in the market, we may not be able to compete effectively.

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.

We have the ability to designate and issue preferred stock, which may have rights, preferences and privileges greater than Hudson’s common stock and which could impede a subsequent change in control of us.

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 our voting stock, thereby delaying, deferring or preventing a change in control of us.

If our common stock were delisted from NASDAQ it could be subject to “penny stock” rules which would negatively impact its liquidity and our shareholders’ ability to sell their shares.

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.

Our management has significant control over our affairs.

Currently, our officers and directors collectively beneficially own approximately 10% of our outstanding common stock. Accordingly, our officers and directors are in a position to significantly affect major corporate transactions and the election of our directors. There is no provision for cumulative voting for our directors.

We may fail to successfully integrate any additional acquisitions made by us into our operations.

As part of our business strategy, we may look for opportunities to grow by acquiring other product lines, technologies or facilities that complement or expand our existing business. We may be unable to identify additional suitable acquisition candidates or negotiate acceptable terms. In addition, we may not be able to successfully integrate any assets, liabilities, customers, systems or management personnel we may acquire into our operations and we may not be able to realize related revenue synergies and cost savings within expected time frames. There can be no assurance that we will be able to successfully integrate any prior or future acquisition.

12

Table of Contents

Our information technology systems, processes, and sites may suffer interruptions, failures, or attacks which could affect our ability to conduct business.

Our information technology systems provide critical data connectivity, information and services for internal and external users. These include, among other things, processing transactions, summarizing and reporting results of operations, complying with regulatory, legal or tax requirements, storing project information and other processes necessary to manage the business. Our systems and technologies, or those of third parties on which we rely, could fail or become unreliable due to equipment failures, software viruses, cyber threats, terrorist acts, natural disasters, power failures or other causes. Cybersecurity threats are evolving and include, but are not limited to, malicious software, cyber espionage, attempts to gain unauthorized access to our sensitive information, including that of our customers, suppliers, and subcontractors, and other electronic security breaches that could lead to disruptions in mission critical systems, unauthorized release of confidential or otherwise protected information, and corruption of data. Although we utilize various procedures and controls to monitor and mitigate these threats, there can be no assurance that these procedures and controls will be sufficient to prevent security threats from materializing. If any of these events were to materialize, the costs related to cyber or other security threats or disruptions may not be fully insured or indemnified and could have a material adverse effect on our reputation, operating results, and financial condition.

Item 1B. Unresolved Staff Comments

None.

Item 2. Properties

The Company’s headquarters are located in a multi-tenant building in Woodcliff Lake, New Jersey, which houses the Company’ executive officers, its accounting and administrative staff, and its information technology staff and equipment. The Company’s key reclamation, processing and cylinder refurbishment facilities are located in Champaign, Illinois, Smyrna, Georgia and Ontario, California. The Company also sells industrial gases out of facilities located in Escondido, California and in Champaign, Illinois. The Company maintains smaller reclamation and cylinder refurbishing facilities in Ontario, California. The Company also maintains four smaller service depots for the performance of its RefrigerantSide® Services and maintains three sales and telemarketing offices.

Hudson’s key operational facilities are as follows:

Location |  | Owned or Leased |  | Description
Woodcliff Lake, New Jersey | ​ | Leased | ​ | Company headquarters and administrative offices
Champaign, Illinois | ​ | Owned | ​ | Reclamation and separation of refrigerants and cylinder refurbishment
Champaign, Illinois | ​ | Leased | ​ | Refrigerant packaging, cylinder refurbishment, RefrigerantSide® Service depot, refrigerant and industrial gases storage
Smyrna, Georgia | ​ | Leased | ​ | Reclamation and separation of refrigerants and cylinder refurbishment center
Smyrna, Georgia | ​ | Owned | ​ | Refrigerant storage
Escondido, California | ​ | Leased | ​ | Refrigerant and Industrial gas storage and cylinder refurbishment center
Ontario, California | ​ | Leased | ​ | Refrigerant reclamation and cylinder refurbishment center

​

Item 3. Legal Proceedings

None.

Item 4. Mine Safety Disclosures

Not Applicable.

Part II

Item 5. Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities

The Company's common stock trades on the NASDAQ Capital Market under the symbol “HDSN”.

13

Table of Contents

The number of record holders of the Company's common stock was approximately 104 as of March 10, 2022. The Company believes that there are approximately 4,000 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 Wells Fargo Bank, National Association and a separate term loan that, among other things, restrict the Company's ability to declare or pay any cash dividends on its capital stock.

Item 6. [Reserved]

Not applicable.

Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations

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 laws and regulations affecting the industry, 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 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, the ability to meet financial covenants under our financing facilities, any delays or interruptions in bringing products and services to market, the timely availability of any requisite permits and authorizations from governmental entities and third parties as well as factors relating to doing business outside the United States, including changes in the laws, regulations, policies, and political, financial and economic conditions, including inflation, interest and currency exchange rates, of countries in which the Company may seek to conduct business, and integration of any other assets it acquires from third parties into its operations, the impact of the COVID-19 pandemic, and other risks detailed in this report and in the Company’s other subsequent filings 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.

Impact of COVID-19 Pandemic

During the years ended December 31, 2021 and 2020, the effects of a novel strain of coronavirus ("COVID-19") pandemic and the related actions by governments around the world to attempt to contain the spread of the virus have materially impacted the global economy.

In response to the COVID-19 outbreak and business disruption, we have four primary priorities:

● | To ensure the health and safety of Hudson employees

● | To keep our products in supply and to maintain the quality and safety of our products

● | To best serve our customers across all channels as they adapt to the shifting demands of consumers during the crisis

● | To best position ourselves to emerge strong when this crisis ends

We operate in a “critical infrastructure industry” and are an essential business as defined by the United States government as we procure, process, service and deliver refrigerants to the government and wholesale and retail organizations, which also service both residential

14

Table of Contents

homes and commercial institutions throughout the United States. While the conditions in the United States and the economy have been impacted by the pandemic, we have been effectively running our operations, including the following:

-Keeping all plants open, while maintaining proper safety standards

-Directing certain office personnel to work remotely, efficiently and safely

-Maintaining ongoing relationships and business with existing customers and vendors in the supply chain

As of the date of this filing, we have activated our contingency plans. We have deployed national and regional teams to monitor the rapidly evolving situation and recommend risk mitigation actions; we have implemented travel restrictions; and we are following social distancing practices. We are endeavoring to follow guidance from authorities and health officials including, but not limited to, requiring associates to wear masks and other protective clothing as appropriate, and implementing additional cleaning and sanitization routines at system facilities.

During times of crisis, business continuity and adapting to the needs of our customers is critical. We have developed systemwide knowledge-sharing routines and processes which include the management of any supply chain challenges. As of the date of this filing, there has been no material impact on our ability to procure or distribute our products and services. We are moving with speed to best serve our customers impacted by COVID-19 and to ensure adequate inventory levels in key channels. We have shifted to more remote and paperless options for customer payments and receipts, including ACH payments.

Critical Accounting Estimates

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 estimates. 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 inventory reserves, valuation allowance for the deferred tax assets relating to its net operating loss carry forwards (“NOLs”) and goodwill and intangible assets.

Inventory

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. Net realizable value represents the estimated selling price in the ordinary course of business, less reasonably predictable costs of completion and disposal. The determination if a write-down to net realizable value is necessary is primarily affected by the market prices for the refrigerant gases we sell. Commodity prices generally are affected by a wide range of factors beyond our control, including weather, seasonality, the availability and adequacy of supply, government regulation and policies and general political and economic conditions. At any time, our inventory levels may be substantial.

Goodwill

The Company has made acquisitions that included a significant amount of goodwill and other intangible assets. The Company applies the purchase method of accounting for acquisitions, which among other things, requires the recognition of goodwill (which represents the excess of the purchase price of the acquisition over the fair value of the net assets acquired and identified intangible assets). We test our goodwill for impairment on an annual basis (the first day of the fourth quarter) and between annual tests if an event occurs or circumstances change that would more likely than not reduce the fair value of an asset below its carrying value. Other intangible assets that meet certain criteria are amortized over their estimated useful lives.

15

Table of Contents

An impairment charge is recorded based on the excess of a reporting unit’s carrying amount over its fair value. An impairment charge would be recognized when the carrying amount exceeds the estimated fair value of a reporting unit. These impairment evaluations use many assumptions and estimates in determining an impairment loss, including certain assumptions and estimates related to future earnings. If the Company does not achieve its earnings objectives, the assumptions and estimates underlying these impairment evaluations could be adversely affected, which could result in an asset impairment charge that would negatively impact operating results. During the fourth quarter of 2021, we completed our annual impairment test as of October 1 and determined in our qualitative assessment that it is more likely than not that the fair value of the reporting unit is greater than its carrying amount, resulting in no goodwill impairment. There can be no assurances that future sustained declines in macroeconomic or business conditions affecting our industry will not occur, which could result in goodwill impairment charges in future periods.

There were no goodwill impairment losses recognized in any of the two years ended December 31, 2021 and 2020.

Other Intangibles

Intangibles with determinable lives are amortized over the estimated useful lives of the assets currently ranging from 6 to 13 years. The Company reviews these useful lives annually to determine that they reflect future realizable value.

Income Taxes

The Company is taxed at statutory corporate income tax rates after adjusting income reported for financial statement purposes for certain items. Current income tax expense (benefit) reflects the tax results of revenues and expenses currently taxable or deductible. The Company utilizes the asset and liability method of accounting for deferred income taxes, which provides for the recognition of deferred tax assets or liabilities, based on enacted tax rates and laws, for the differences between the financial and income tax reporting bases of 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 expects to realize future taxable income. As a result of a prior “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. To the extent that the Company utilizes its NOLs, it will not pay tax on such income. However, to the extent that the Company’s net income, if any, exceeds the annual NOL limitation, it will pay income taxes based on the then existing statutory rates. In addition, certain states either do not allow or limit NOLs and as such the Company will be liable for certain state income taxes.

As of December 31, 2021, the Company had NOLs of approximately $29.3 million, none of which have an expiration date and which are subject to annual limitations of 80% of tax earnings. As of December 31, 2021, the Company had state tax NOLs of approximately $21.0 million expiring in various years. We review the likelihood that we will realize the benefit of our deferred tax assets, and therefore the need for valuation allowances, on an annual basis in the fourth quarter of the year, and more frequently if events indicate that a review is required. In determining the requirement for a valuation allowance, the historical and projected financial results are considered, along with all other available positive and negative evidence.

Concluding that a valuation allowance is not required is difficult when there is significant negative evidence that is objective and verifiable, such as cumulative losses in recent years. We utilize a rolling twelve quarters of pre-tax income or loss adjusted for significant permanent book to tax differences, as well as non-recurring items, as a measure of our cumulative results in recent years. Based on our assessment as of December 31, 2019, 2020 and 2021, we concluded that due to the uncertainty that the deferred tax assets will not be fully realized in the future, we recorded a valuation allowance of approximately $11.3 million during 2018, and due to additional losses, increased the valuation allowance through 2019 and 2020 to $19.0 million. For the year ended December 31, 2021, and due to additional income that resulted in the utilization of net operating losses of $16.8 million, we reduced the valuation allowance by $3.9 million resulting in an ending balance of $15.1 million as of December 31, 2021.

The Company evaluates uncertain tax positions, if any, by determining if it is more likely than not to be sustained upon examination by the taxing authorities. As of December 31, 2021 and December 31, 2020, the Company believes it had no uncertain tax positions and there are no open federal or state examinations.

16

Table of Contents

Overview

The Company is a leading provider of sustainable refrigerant products and services to the Heating Ventilation Air Conditioning and Refrigeration (“HVACR”) industry. For nearly three decades, we have demonstrated our commitment to our customers and the environment by becoming one of the United States’ largest refrigerant reclaimers through multimillion dollar investments in the plants and advanced separation technology required to recover a wide variety of refrigerants and restoring them to Air-Conditioning, Heating, and Refrigeration Institute (“AHRI”) standard for reuse as certified EMERALD Refrigerants™.

The Company's products and services are primarily used in commercial air conditioning, industrial processing and refrigeration systems, and include refrigerant and industrial gas sales, refrigerant management services consisting primarily of reclamation of refrigerants and RefrigerantSide® Services performed at a customer's site, consisting of system decontamination to remove moisture, oils and other contaminants.

Sales of refrigerants continue to represent a significant majority of the Company’s revenues.

The Company also sells industrial gases to a variety of industry customers, predominantly to users in, or involved with, the US Military. In July 2016, the Company was awarded, as prime contractor, a five-year fixed price contract, including a five-year renewal option which has been exercised, awarded to it by the United States Defense Logistics Agency (“DLA”) for the management and supply of refrigerants, compressed gases, cylinders and related items to US Military commands and installations, Federal civilian agencies and foreign militaries. Primary users include the US Army, Navy, Air Force, Marine Corps and Coast Guard. Our contract with DLA expires in July 2026.

Results of Operations

Year ended December 31, 2021 as compared to the year ended December 31, 2020

Revenues for the year ended December 31, 2021 were $192.7 million, an increase of $45.1 million or 30.6% from the $147.6 million reported during the comparable 2020 period. The increase was mainly attributable to higher selling prices of certain refrigerants sold, partially offset by reduced volume as the Company was more selective in its sales of refrigerants. Starting in late March 2020, the COVID-19 virus pandemic negatively impacted our economy, including the closures to public venues, such as office buildings, gyms, schools and universities across the U.S., which negatively impacted our end markets and overall demand for refrigerants.

Cost of sales for the year ended December 31, 2021 was $121.1 million or 63% of sales. Cost of sales for the year ended December 31, 2020 was $112.2 million or 76% of sales. The reduction in the cost of sales percentage from 76% to 63% is primarily due to higher selling prices and lower costs of certain refrigerants sold during the year 2021 when compared to the year 2020.

Selling, general and administrative (“SG&A”) expenses for the year ended December 31, 2021 were $26.6 million, representing a negligible variance when compared to $26.6 million reported during the comparable 2020 period. SG&A mainly consists of professional fees, payroll costs and other selling, general and administrative expense.

Amortization expense was $2.8 million and 2.9 million during 2021 and 2020, respectively.

Other expense for 2021 was $8.9 million, compared to the $11.3 million of other expense reported during the comparable 2020 period. Interest expense was lower due to reduced debt resulting from the Company paying down principal of its term loan debt. Other income for the year ended December 31, 2021 was $2.5 million related to the forgiveness of the Company’s PPP Loan. Other income for the year ended December 31, 2020 was $1.0 million relating to the receipt of key man life insurance proceeds from the unexpected passing of Kevin J. Zugibe, Chairman of the Board and Chief Executive Officer of the Company at that time.

Income tax expense for 2021 was $1.1 million compared to income tax benefit of $0.2 million for 2020. For 2021 and 2020, income tax expense for federal and state income tax purposes was determined by applying statutory income tax rates to pre-tax income after adjusting for certain items. As discussed previously, we concluded that due to the uncertainty that the deferred tax assets will not be fully realized in the future, we have recorded a full valuation allowance as of December 31, 2021.

17

Table of Contents

The net income for the year ended December 31, 2021 was $32.3 million, an increase of $37.5 million from the $5.2 million of net loss reported during the comparable 2020 period, primarily due to higher revenues and reduced interest expense, as described above.

Liquidity and Capital Resources

At December 31, 2021, the Company had working capital, which represents current assets less current liabilities, of $55.5 million, an increase of $31.1 million from the working capital of $24.4 million at December 31, 2020. The increase in working capital is primarily attributable to timing of borrowings, accounts receivable and inventory.

Inventory and trade receivables are principal components of current assets. At December 31, 2021, the Company had inventory of $94.1 million, an increase of $49.6 million from $44.5 million at December 31, 2020. The increase in the inventory balance is primarily due to increases in inventory cost in 2021, consistent with the increase in selling price of certain 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 and HCFC based refrigerants (which are no longer being produced) and HFC refrigerants (which are currently in the process of being phased down).

At December 31, 2021, the Company had trade receivables, net of allowance for doubtful accounts, of $14.2 million, an increase of $4.4 million from $9.8 million at December 31, 2020. 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 used in operating activities for the year ended December 31, 2021 was $1.2 million, a reduction of $12.9 million compared to the net cash provided by operating activities of $11.7 million for the comparable 2020 period. The variance is primarily due to increased inventory cost, as previously mentioned, offset by increased net income in 2021, primarily as a result of increased selling price of certain refrigerants sold.

Net cash used in investing activities for 2021 and 2020 was $1.9 million and $0.5 million, respectively. As described above, key man life insurance proceeds of $1.0 million during 2020 were offset by capital expenditures incurred in the ordinary course of business, mainly in our plant facilities.

Net cash provided by financing activities for 2021 was $5.3 million, compared to net cash used in financing activities of $12.5 million for 2020. The variance is mainly due to borrowings under the revolving credit facility to purchase inventory during 2021. In 2020, the Company received $2.5 million under the PPP loan, which was forgiven in 2021.

At December 31, 2021, cash and cash equivalents were $3.5 million, or approximately $2.2 million higher than the $1.3 million of cash and cash equivalents at December 31, 2020, mainly due to timing and as a result of the transactions mentioned above.

Revolving Credit Facility (prior to refinancing on March 2, 2022)

On December 19, 2019, Hudson Technologies Company (“HTC”), Hudson Holdings, Inc. (“Holdings”) and Aspen Refrigerants, Inc. (“ARI”), as borrowers (collectively, the “Borrowers”), and Hudson Technologies, Inc. (the “Company”) as a guarantor, became obligated under a Credit Agreement (the “Wells Fargo Facility”) with Wells Fargo Bank, as administrative agent and lender (“Agent” or “Wells Fargo”) and such other lenders as may thereafter become a party to the Wells Fargo Facility. The Wells Fargo Facility was amended and restated on March 2, 2022 (see “-Revolving Credit Facility Amendment” below).

Under the terms of the Wells Fargo Facility, the Borrowers could borrow, from time to time, up to $60 million at any time consisting of revolving loans in a maximum amount up to the lesser of $60 million and a borrowing base that was calculated based on the outstanding amount of the Borrowers’ eligible receivables and eligible inventory, as described in the Wells Fargo Facility. The Wells Fargo Facility also contained a sublimit of $5 million for swing line loans and $2 million for letters of credit.

Amounts borrowed under the Wells Fargo Facility were used by the Borrowers to repay existing revolving indebtedness under its prior revolving credit facility, repay certain principal amounts under the Term Loan Facility (as defined below), and for working capital needs, certain permitted acquisitions, and to reimburse drawings under letters of credit.

18

Table of Contents

Interest on loans under the Wells Fargo Facility was payable in arrears on the first day of each month. Interest charges with respect to loans were computed on the actual principal amount of loans outstanding during the month at a rate per annum equal to (A) with respect to Base Rate loans, the sum of (i) a rate per annum equal to the higher of (1) the federal funds rate plus 0.5%, (2) one month LIBOR plus 1.0%, and (3) the prime commercial lending rate of Wells Fargo, plus (ii) between 1.25% and 1.75% depending on average monthly undrawn availability and (B) with respect to LIBOR rate loans, the sum of the LIBOR rate plus between 2.25% and 2.75% depending on average monthly undrawn availability.

In connection with the closing of the Wells Fargo Facility, the Company also entered into a Guaranty and Security Agreement, dated as of December 19, 2019 (the “Revolver Guaranty and Security Agreement”), pursuant to which the Company and certain subsidiaries unconditionally guaranteed the payment and performance of all obligations owing by Borrowers to Wells Fargo, as Agent for the benefit of the revolving lenders. Pursuant to the Revolver Guaranty and Security Agreement, Borrowers, the Company and certain other subsidiaries granted to the Agent, for the benefit of the Wells Fargo Facility lenders, a security interest in substantially all of their respective assets, including receivables, equipment, general intangibles (including intellectual property), inventory, subsidiary stock, real property, and certain other assets. The Revolver Guaranty and Security Agreement also provided that the Agent shall receive the right to dominion over certain of the Borrowers’ bank accounts in the event of an Event of Default under the Wells Fargo Facility, or if undrawn availability under the Wells Fargo Facility falls below $9 million at any time.

The Wells Fargo Facility contained a financial covenant requiring the Company to maintain at all times minimum liquidity (defined as availability under the Wells Fargo Facility plus unrestricted cash) of at least $5 million, of which at least $3 million must be derived from availability. The Wells Fargo Facility also contained a springing covenant, which took effect only upon a failure to maintain undrawn availability of at least $7.5 million, requiring the Company to maintain a Fixed Charge Coverage Ratio (FCCR) of not less than 1.00 to 1.00, as of the end of each trailing period of twelve consecutive fiscal months commencing with the month prior to the triggering of the covenant. The FCCR (as defined in the Wells Fargo Facility) is the ratio of (a) EBITDA for such period, minus unfinanced capital expenditures made during such period, to (b) the aggregate amount of (i) interest expense required to be paid (other than interest paid-in-kind, amortization of financing fees, and other non-cash interest expense) during such period, (ii) scheduled principal payments (but excluding principal payments relating to outstanding revolving loans under the Wells Fargo Facility), (iii) all net federal, state, and local income taxes required to be paid during such period (provided, that any tax refunds received shall be applied to the period in which the cash outlay for such taxes was made), (iv) all restricted payments paid (as defined in the Wells Fargo Facility) during such period, and (v) to the extent not otherwise deducted from EBITDA for such period, all payments required to be made during such period in respect of any funding deficiency or funding shortfall with respect to any pension plan. The FCCR covenant ceases after the Borrowers have been in compliance therewith for two consecutive months.

The Wells Fargo Facility also contained customary non-financial covenants relating to the Company and the Borrowers, including limitations on Borrowers’ ability to pay dividends on common stock or preferred stock, and also includes certain events of default, including payment defaults, breaches of representations and warranties, covenant defaults, cross-defaults to other obligations, events of bankruptcy and insolvency, certain ERISA events, judgments in excess of specified amounts, impairments to guarantees and a change of control. The Wells Fargo Facility also contained certain covenants contained in the Fourth Amendment to the Prior Term Loan Facility described below.

On April 23, 2020, the Borrowers, the Company and its subsidiaries entered into a First Amendment to Credit Agreement with Wells Fargo (the “First Amendment”). The First Amendment authorized the Company and its subsidiaries to incur up to $2.5 million of indebtedness under the Coronavirus Aid, Relief, and Economic Security Act (the “CARES Act”) and contained other provisions relating to the treatment of such proceeds and any potential debt forgiveness, under the Wells Fargo Facility.

The commitments under the Wells Fargo Facility were to expire and the full outstanding principal amount of the loans, together with accrued and unpaid interest, would have been due and payable in full on December 19, 2022, unless the commitments were terminated and the outstanding principal amount of the loans were accelerated sooner following an event of default.

Prior Term Loan Facility (prior to refinancing on March 2, 2022)

On October 10, 2017, HTC, Holdings, and ARI, as borrowers, and the Company, as guarantor, became obligated under a Term Loan Credit and Security Agreement (as amended, the “Prior Term Loan Facility”) with U.S. Bank National Association, as administrative agent and collateral agent (“Prior Term Loan Agent”) and funds advised by FS Investments and such other lenders as may thereafter

19

Table of Contents

become a party to the Term Loan Facility (the “Prior Term Loan Lenders”). The Prior Term Loan Facility was repaid in full and terminated on March 2, 2022 (see “-Termination of Prior Term Loan Facility” below).

Under the terms of the Prior Term Loan Facility, the Borrowers immediately borrowed $105 million pursuant to a term loan (the “Prior Term Loan”).

The Prior Term Loan was to mature on October 10, 2023. Interest on the Prior Term Loan was generally payable on the earlier of the last day of the interest period applicable to such Eurodollar rate loan and the last day of the Term Loan Facility, as applicable. Interest is payable at the rate per annum of the Eurodollar Rate (as defined in the Term Loan Facility) plus 10.25%. The Borrowers had the option of paying 3.00% interest per annum in kind by adding such amount to the principal of the Prior Term Loans during no more than five fiscal quarters during the term of the Prior Term Loan Facility.

Borrowers and the Company granted to the Prior Term Loan Agent, for the benefit of the Prior Term Loan Lenders, a security interest in substantially all of their respective assets, including receivables, equipment, general intangibles (including intellectual property), inventory, subsidiary stock, real property, and certain other assets.

The Prior Term Loan Facility contained a financial covenant requiring the Company to maintain a specified total leverage ratio (“TLR”), tested as of the last day of the fiscal quarter. The TLR (as defined in the Prior Term Loan Facility) is the ratio of (a) funded debt as of such day to (b) EBITDA for the four consecutive fiscal quarters ending on the last day of such fiscal quarter. Funded debt (as defined in the Prior Term Loan Facility) includes amounts borrowed under the Wells Fargo Facility and the Term Loan Facility as well as capitalized lease obligations and other indebtedness for borrowed money maturing more than one year from the date of creation thereof. As of December 31, 2021 and 2020, the TLR was approximately 1.93 to 1 and 5.84 to 1, respectively.

The Prior Term Loan Facility also contained customary non-financial covenants relating to the Company and the Borrowers, including limitations on their ability to pay dividends on common stock or preferred stock, and also included certain events of default, including payment defaults, breaches of representations and warranties, covenant defaults, cross-defaults to other obligations, events of bankruptcy and insolvency, certain ERISA events, judgments in excess of specified amounts, impairments to guarantees and a change of control.

In connection with the closing of the Prior Term Loan Facility, the Company also entered into a Guaranty and Suretyship Agreement, dated as of October 10, 2017 (the “Prior Term Loan Guarantee”), pursuant to which the Company affirmed its unconditional guarantee of the payment and performance of all obligations owing by Borrowers to Prior Term Loan Agent, as agent for the benefit of the Prior Term Loan Lenders.

The Prior Term Loan Agent and the Agent entered into an intercreditor agreement governing the relative priority of their security interests granted by the Borrowers and the Guarantor in the collateral, providing that the Agent would have a first priority security interest in the accounts receivable, inventory, deposit accounts and certain other assets (the “Revolving Credit Priority Collateral”) and the Term Loan Agent would have a first priority security interest in the equipment, real property, capital stock of subsidiaries and certain other assets (the “Prior Term Loan Priority Collateral”).

On December 19, 2019, HTC, Holdings and ARI as borrowers and the Company as a guarantor, entered into a Waiver and Fourth Amendment to Term Loan Credit and Security Agreement (the “Fourth Amendment”) with U.S. Bank National Association, as collateral agent and administrative agent, and the various lenders thereunder.

The Fourth Amendment waived financial covenant defaults at June 30, 2019 and September 30, 2019 and amended the Term Loan Credit and Security Agreement dated October 10, 2017 (as previously amended, the “Prior Term Loan Facility”) to reset the maximum Total Leverage Ratio covenant contained in the Prior Term Loan Facility at the indicated dates as follows: (i) September 30, 2019 - 15.67:1.00; (ii) December 31, 2019 – 14.54:1.00; (iii) March 31, 2020 – 16.57:1.00; (iv) June 30, 2020 – 10.87:1.00; (v) September 30, 2020 – 8.89:1.00; (vi) December 31, 2020 – 8.89:1.00; (vii) March 31, 2021 – 7.75:1.00; (viii) June 30, 2021 – 7.03:1.00; (ix) September 30, 2021 – 6.08:1.00; and (x) December 31, 2021 – 5.36:1.00. The Fourth Amendment also reset the minimum liquidity requirement (consisting of cash plus undrawn availability on the Borrowers’ revolving loan facility) of $5 million, measured monthly. Furthermore, the Fourth Amendment added a minimum LTM Adjusted EBITDA covenant as of the indicated dates as follows: (i) September 30, 2019 - $7.887 million; (ii) December 31, 2019 – $7.954 million; (iii) March 31, 2020 – $7.359 million; (iv) June 30, 2020 – $11.745 million; (v) September 30, 2020 – $12.021 million; (vi) December 31, 2020 – $12.300 million; (vii) March 31, 2021 –

20

Table of Contents

$14.295 million; (viii) June 30, 2021 – $14.566 million; (ix) September 30, 2021 – $15.431 million; and (x) December 31, 2021 – $16.267 million.

The Fourth Amendment also (i) continued the limitation on acquisitions and dividends, (ii) required a principal repayment of $14,000,000 upon execution of the Fourth Amendment and (iii) increased the scheduled quarterly principal repayments to $562,000 effective March 31, 2020 and $1,312,000 effective December 31, 2020.

The Fourth Amendment also terminated the exit fee payable to the term loan lenders, which would have been payable in full in cash upon the earlier to occur of (x) repayment in full of the term loans, or (y) any acceleration of the term loans. In lieu of the exit fee, the Fourth Amendment reinstated a prepayment premium equal to the following percentages of the principal amount prepaid, depending upon the date of prepayment: (i) through March 31, 2020 – 0.50%; (ii) from April 1, 2020 through March 31, 2021 – 2.50%; and (iii) from April 1, 2021 and thereafter – 5.00%.

The Fourth Amendment also added a new covenant providing that in the event of a breach of a financial covenant contained in the Term Loan Facility or any failure to make a required principal repayment (a “Trigger Event”), then on or prior to six months after a Trigger Event, the Company shall commence a process to (x) sell its businesses and/or assets, and/or (y) consummate a refinancing transaction with respect to the Term Loan Facility (a “Transaction”), in each case, subject to enumerated time milestones contained in the Fourth Amendment, and which requires that Transaction shall, in any event, be consummated on or prior to the eighteen (18) month anniversary of the Trigger Event.

As closing conditions to the execution and delivery of the Fourth Amendment, the Company was required to: (i) amend its Bylaws in a manner acceptable to the Term Loan Facility lenders; (ii) appoint two new independent directors to the board of directors (the “Special Directors”); and (iii) pay an amendment fee of 0.50% of the amount of the outstanding loans under the Term Loan Facility.

On April 23, 2020, HTC, Holdings and ARI as borrowers and the Company as a guarantor, entered into a Fifth Amendment to Term Loan Credit and Security Agreement (the “Fifth Amendment”) with U.S. Bank National Association, as collateral agent and administrative agent, and the various lenders thereunder. The Fifth Amendment authorized the Company and its subsidiaries to incur up to $2.5 million of indebtedness under the CARES Act and contained other provisions relating to the treatment of such proceeds and any potential debt forgiveness, under the Prior Term Loan Facility.

The Company evaluated the Fourth and Fifth Amendments in accordance with the provisions of Accounting Standards Codification (“ASC”) 470, Debt, to determine if the Amendments were (1) a troubled debt restructuring, and if not, (2) a modification or an extinguishment of debt. The Company concluded that the Fourth Amendment was a troubled debt restructuring for accounting purposes due to the removal of the exit fee; as such, the Company capitalized an additional $0.5 million of deferred financing costs, which are being amortized over the remaining term. The future undiscounted cash flows of the term loan, as amended, exceeded the carrying value, and accordingly, no gain was recognized and no adjustment was made to the carrying value of the debt.

The Company was in compliance with all covenants, under the Wells Fargo Facility and the Prior Term Loan Facility, as amended, as of December 31, 2021.

New Term Loan Facility (Effective March 2, 2022)

On March 2, 2022, Hudson Technologies Company (“HTC”), an indirect subsidiary of Hudson Technologies, Inc. (the “Company”), and the Company’s subsidiary Hudson Holdings, Inc., as borrowers (collectively, the “Borrowers”), and the Company, as guarantor, became obligated under a Credit Agreement (the “Term Loan Facility”) with TCW Asset Management Company LLC, as administrative agent (“Term Loan Agent”) and the lender parties thereto (the “Term Loan Lenders”).

Under the terms of the Term Loan Facility, the Borrowers have immediately borrowed $85 million pursuant to a term loan (the “Term Loan”). Amounts borrowed under the Term Loan Facility were used by the Borrowers to repay the outstanding principal amount and related fees and expenses under the Prior Term Loan Facility (as defined below) and for other corporate purposes.

The Term Loan matures on March 2, 2027, or earlier upon certain acceleration or cross default events. Principal payments on the Term Loan are required on a quarterly basis, commencing with the quarter ending March 31, 2022, in the amount of 5% of the original principal amount of the outstanding Term Loan per annum. The Term Loan Facility also requires annual payments of 50% of Excess

21

Table of Contents

Cash Flow (as defined in the Term Loan Facility); provided that commencing with the year ending December 31, 2023 such payments may be reduced depending upon the Company’s leverage ratio (as defined in the Term Loan Facility) for the applicable year. The Term Loan Facility also requires mandatory prepayments of the Term Loans in the event of certain asset dispositions, debt issuances, and other events. The Term Loan may be prepaid at the option of the Borrowers subject to a prepayment premium of 3% in year one, 2% in year two, 1% in year three, and zero in year four and thereafter.

Interest on the Term Loan is generally payable monthly, in arrears. Interest charges with respect to the Term Loan are computed on the actual principal amount of the Term Loan outstanding at a rate per annum equal to (A) with respect to Base Rate loans, the sum of (i) a rate per annum equal to the higher of (1) 2.0%, (2) the federal funds rate plus 0.5%, (3) one month term SOFR plus 1.0%, and (4) the prime commercial lending rate quoted by The Wall Street Journal, plus (ii) between 6.0% and 7.0% depending on the applicable leverage ratio and (B) with respect to SOFR loans, the sum of the applicable SOFR rate plus between 7.0% and 8.0% depending on the applicable leverage ratio.

Borrowers and the Company granted to the Term Loan Agent, for the benefit of the Term Loan Lenders, a security interest in substantially all of their respective assets, including receivables, equipment, general intangibles (including intellectual property), inventory, subsidiary stock, real property, and certain other assets.

The Term Loan Facility contains a fixed charge coverage ratio covenant and a leverage ratio covenant, each tested quarterly. The Term Loan Facility also contains customary non-financial covenants relating to the Company and the Borrowers, including limitations on Borrowers’ ability to pay dividends on common stock or preferred stock, and also includes certain events of default, including payment defaults, breaches of representations and warranties, covenant defaults, cross-defaults to other obligations, events of bankruptcy and insolvency, certain ERISA events, judgments in excess of specified amounts, impairments to guarantees and a change of control.

In connection with the closing of the Term Loan Facility, the Company also entered into a Guaranty and Security Agreement, dated as of March 2, 2022 (the “Term Loan Guarantee”), pursuant to which the Company affirmed its unconditional guarantee of the payment and performance of all obligations owing by Borrowers to Term Loan Agent, as agent for the benefit of the Term Loan Lenders.

The Term Loan Agent and the Agent (as defined below) have entered into an intercreditor agreement governing the relative priority of their security interests granted by the Borrowers and the Guarantor in the collateral, providing that the Agent shall have a first priority security interest in the accounts receivable, inventory, deposit accounts and certain other assets (the “Revolving Credit Priority Collateral”) and the Term Loan Agent shall have a first priority security interest in the equipment, real property, capital stock of subsidiaries and certain other assets (the “Term Loan Priority Collateral”).

Termination of Prior Term Loan Facility

In conjunction with entry into the new Term Loan Facility as described above, on March 2, 2022 the Company's existing term loans set forth in the Term Loan Credit and Security Agreement with U.S. Bank National Association, as collateral agent and administrative agent, and the various lenders thereunder, as amended (the “Prior Term Loan Facility”), which had a principal balance of approximately $63.9 million after payment of a $16.0 million excess cash flow amount thereunder, was repaid in full, together with associated required lender fees and expenses of $3.3 million, and the Prior Term Loan Facility was terminated.

Revolving Credit Facility Amendment (Effective March 2, 2022)

On March 2, 2022, Hudson Technologies Company (“HTC”) and Hudson Holdings, Inc. (“Holdings”), as borrowers (collectively, the “Borrowers”), and Hudson Technologies, Inc (the “Company”) as a guarantor, entered into an Amended and Restated Credit Agreement (the “Amended Wells Fargo Facility”) with Wells Fargo Bank, National Association, as administrative agent and lender (“Agent” or “Wells Fargo”) and such other lenders as have or may thereafter become a party to the Wells Fargo Facility. The Amended Wells Fargo facility amended and restated the prior Wells Fargo Facility.

Under the terms of the Amended Wells Fargo Facility, the Borrowers may borrow up to $90 million consisting of: (i) $15 million immediately borrowed in the form of a “first in last out” term loan (the “FILO Tranche”) and (ii) from time to time, up to $75 million at any time consisting of revolving loans (the “Revolving Loans”) in a maximum amount up to the lesser of $75 million and a borrowing base that is calculated based on the outstanding amount of the Borrowers’ eligible receivables and eligible inventory, as described in the

22

Table of Contents

Amended Wells Fargo Facility. The Amended Wells Fargo Facility also contains a sublimit of $9 million for swing line loans and $2 million for letters of credit.

Amounts borrowed under the Amended Wells Fargo Facility may be used for working capital needs, certain permitted acquisitions, and to reimburse drawings under letters of credit.

Interest under the Amended Wells Fargo Facility is payable in arrears on the first day of each month. Interest charges with respect to Revolving Loans are computed on the actual principal amount of Revolving Loans outstanding at a rate per annum equal to (A) with respect to Base Rate loans, the sum of (i) a rate per annum equal to the higher of (1) 1.0%, (2) the federal funds rate plus 0.5%, (3) one month term SOFR plus 1.0%, and (4) the prime commercial lending rate of Wells Fargo, plus (ii) between 1.25% and 1.75% depending on average monthly undrawn availability and (B) with respect to SOFR loans, the sum of the applicable SOFR rate plus between 2.36% and 2.86% depending on average quarterly undrawn availability. Interest charges with respect to the FILO Tranche are computed on the actual principal amount of FILO Tranche loans outstanding at a rate per annum equal to (A) with respect to Base Rate FILO Tranche loans, the sum of (i) a rate per annum equal to the higher of (1) 1.0%, (2) the federal funds rate plus 0.5%, (3) one month term SOFR plus 1.0%, and (4) the prime commercial lending rate of Wells Fargo, plus (ii) 6.5% and (B) with respect to SOFR FILO Tranche loans, the sum of the applicable SOFR rate plus 7.50%.

In connection with the closing of the Amended Wells Fargo Facility, the Company also entered into a First Amendment to Guaranty and Security Agreement, dated as of March 2, 2022 (the “Amended Revolver Guaranty and Security Agreement”), pursuant to which the Company and certain subsidiaries are continuing to unconditionally guarantee the payment and performance of all obligations owing by Borrowers to Wells Fargo, as Agent for the benefit of the revolving lenders. Pursuant to the Revolver Guaranty and Security Agreement, as amended, Borrowers, the Company and certain other subsidiaries are continuing to grant to the Agent, for the benefit of the Wells Fargo Facility lenders, a security interest in substantially all of their respective assets, including receivables, equipment, general intangibles (including intellectual property), inventory, subsidiary stock, real property, and certain other assets.

The Amended Wells Fargo Facility contains a financial covenant requiring the Company to maintain at all times minimum liquidity (defined as availability under the Amended Wells Fargo Facility plus unrestricted cash) of at least $5 million, of which at least $3 million must be derived from availability. The Amended Wells Fargo Facility also contains a springing covenant, which takes effect only upon a failure to maintain undrawn availability of at least $11.25 million or upon an election by the Borrowers to increase the inventory component of the borrowing base, requiring the Company to maintain a Fixed Charge Coverage Ratio (FCCR) of not less than 1.00 to 1.00, as of the end of each trailing period of twelve consecutive months commencing with the month prior to the triggering of the covenant. The FCCR (as defined in the Wells Fargo Facility) is the ratio of (a) EBITDA for such period, minus unfinanced capital expenditures made during such period, to (b) the aggregate amount of (i) interest expense required to be paid (other than interest paid-in-kind, amortization of financing fees, and other non-cash interest expense) during such period, (ii) scheduled principal payments (but excluding principal payments relating to outstanding Revolving Loans under the Amended Wells Fargo Facility), (iii) all net federal, state, and local income taxes required to be paid during such period (provided, that any tax refunds received shall be applied to the period in which the cash outlay for such taxes was made), (iv) all restricted payments paid (as defined in the Amended Wells Fargo Facility) during such period, and (v) to the extent not otherwise deducted from EBITDA for such period, all payments required to be made during such period in respect of any funding deficiency or funding shortfall with respect to any pension plan. The FCCR covenant ceases after the Borrowers have been in compliance therewith for two consecutive months.

The Amended Wells Fargo Facility also contains customary non-financial covenants relating to the Company and the Borrowers, including limitations on Borrowers’ ability to pay dividends on common stock or preferred stock, and also includes certain events of default, including payment defaults, breaches of representations and warranties, covenant defaults, cross-defaults to other obligations, events of bankruptcy and insolvency, certain ERISA events, judgments in excess of specified amounts, impairments to guarantees and a change of control.

The commitments under the Wells Fargo Facility will expire and the full outstanding principal amount of the loans, together with accrued and unpaid interest, are due and payable in full on March 2, 2027, unless the commitments are terminated and the outstanding principal amount of the loans are accelerated sooner following an event of default or in the event of certain other cross-defaults.

The Company’s ability to comply with these covenants in future quarters may be affected by events beyond the Company’s control, including general economic conditions, weather conditions, regulations and refrigerant pricing. Therefore, we cannot make any assurance that we will continue to be in compliance during future periods.

23

Table of Contents

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 Wells Fargo 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 would adversely affect the Company’s future capital needs. There can be no assurance 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 on acceptable terms, or at all.

CARES Act Loan

On April 23, 2020 the Company received a loan in the amount of $2.475 million from Meridian Bank under the Paycheck Protection Program (“PPP”) pursuant to the CARES Act. The loan had a term of two years, was unsecured, and bore interest at a fixed rate of one percent per annum, with the first nine months of principal and interest deferred. As a result of the COVID-19 pandemic, in applying for the loan the Company made a good faith assertion based upon the degree of uncertainty introduced to the capital markets and the industries affecting the Company's customers and the Company's dependency to curtail expenses to fund ongoing operations. The PPP loan proceeds have been used in part to help offset payroll costs as stipulated in the legislation. All or a portion of the PPP loan may be forgiven by the U.S. Small Business Administration (“SBA”) upon application by the Company and upon documentation of expenditures in accordance with the SBA requirements. Under the CARES Act, loan forgiveness is available for the sum of documented payroll costs and other covered areas, such as rent payments, mortgage interest and utilities, as applicable. During the third quarter of 2021, the Company received forgiveness of the loan from the SBA, resulting in $2.475 million of Other Income recorded in the Company’s Consolidated Statements of Operations.

Off-Balance Sheet Arrangements

None.

Inflation

Inflation, historically or the current rise, has not had a material impact on the Company's operations.

Reliance on Suppliers and Customers

The Company participates in an industry that is highly regulated, and changes in the regulations affecting our business could affect our operating results. Currently the Company purchases virgin HCFC and HFC refrigerants and reclaimable, primarily HCFC and CFC, refrigerants from suppliers and its customers. Under the Act the phase-down of future production of certain virgin HCFC refrigerants commenced in 2010 and has been fully phased out by the year 2020, and production of all virgin HCFC refrigerants is scheduled to be phased out by the year 2030. 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 sold by it, the Company could realize reductions in revenue from refrigerant sales, which could have a material adverse effect on the Company’s operating results and financial position.

For the year ended December 31, 2021, one customer accounted for 10% of the Company’s revenues; no other customer accounted for more than 10% of the Company’s revenues. At December 31, 2021, there were $3.1 million of outstanding receivables from this customer. For the year ended December 31, 2020, one customer accounted for 14% of the Company’s revenues; no other customer accounted for more than 10% of the Company’s revenues. At December 31, 2020, there were $2.9 million of outstanding receivables from this customer.

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 operating results and financial position.

Seasonality and Weather Conditions and Fluctuations in Operating Results

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

24

Table of Contents

technology and regulations, timing in introduction and/or retrofit or replacement of 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 nine months 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, to the extent that there is unseasonably cool weather throughout the spring and summer months, which would adversely affect the demand for refrigerants, there would be a corresponding negative impact on the Company. 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 to a lesser extent there is a similar seasonal element to RefrigerantSide® Service revenues as refrigerant sales.

Recent Accounting Pronouncements

In June 2016, the FASB issued ASU No. 2016-13, Measurement of Credit Losses on Financial Instruments, which revises guidance for the accounting for credit losses on financial instruments within its scope, and in November 2018, issued ASU No. 2018-19 and in April 2019, issued ASU No. 2019-04 and in May 2019, issued ASU No. 2019-05, and in November 2019, issued ASU No. 2019-11, which each amended the standard. The new standard introduces an approach, based on expected losses, to estimate credit losses on certain types of financial instruments and modifies the impairment model for available-for-sale debt securities. The new approach to estimating credit losses (referred to as the current expected credit losses model) applies to most financial assets measured at amortized cost and certain other instruments, including trade and other receivables, loans, held-to-maturity debt securities, net investments in leases and off-balance-sheet credit exposures. This ASU is effective for fiscal years beginning after December 15, 2022, including interim periods within those fiscal years, with early adoption permitted. Entities are required to apply the standard’s provisions as a cumulative-effect adjustment to retained earnings as of the beginning of the first reporting period in which the guidance is adopted. The Company is still evaluating the impact of this ASU.

In March 2020, the FASB issued ASU 2020-04, which provides relief from accounting analysis and impacts that may otherwise be required for modifications to agreements necessitated by reference rate reform. It also provides optional expedients to enable the continuance of hedge accounting where certain hedging relationships are impacted by reference rate reform. This optional guidance is effective immediately, and available to be used through December 31, 2022. We are assessing the impact that reference rate reform and the related adoption of this guidance will have on our financial statements.

In August 2020, the FASB issued ASU 2020-06, "Debt-Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging-Contracts in Entity's Own Equity (Subtopic 815-40): Accounting for Convertible Instruments and Contracts in an Entity's Own Equity", which is intended to simplify the accounting for convertible instruments by removing certain separation models in Subtopic 470-20, Debt-Debt with Conversion and Other Options, for convertible instruments. The pronouncement is effective for fiscal years, and for interim periods within those fiscal years, beginning after December 15, 2021, with early adoption permitted. ASU 2020-06 is not expected to have a material impact on our financial statements.

Item 7A. Quantitative and Qualitative Disclosures about Market Risk

Interest Rate Sensitivity

We are exposed to market risk from fluctuations in interest rates on the Wells Fargo Facility and on the Term Loan Facility. The Wells Fargo Facility was a $60,000,000 secured facility, and the Term Loan Facility provided for Term Loans of $79,866,500 as of December 31, 2021. Effective March 2, 2022, the amended Wells Fargo Facility increased to a $90,000,000 secured facility, while the Prior Term Loan Facility was replaced with a Term Loan Facility of $85,000,000.

There was a $15,000,000 outstanding balance on the Wells Fargo Facility as of December 31, 2021. Future interest rate changes on our borrowing under the Amended Wells Fargo Facility may have an impact on our consolidated results of operations.

There was a $79,866,500 outstanding balance on the Prior Term Loan Facility as of December 31, 2021. Future interest rate changes on our borrowing under the Term Loans may have an impact on our consolidated results of operations.

If the loan bearing interest rate changed by 1%, the annual effect on interest expense would be approximately $0.9 million as of December 31, 2021.

25

Table of Contents

Refrigerant Market

We are also exposed to market risk from fluctuations in the demand, price and availability of refrigerants. 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 sold by the Company, the Company could realize reductions in revenue from refrigerant sales or write downs of inventory, which could have a material adverse effect on our consolidated results of operations.

Item 8. Financial Statements and Supplementary Data

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

Item 9. Changes in and Disagreements with Accountants on Accounting and Financial Disclosure

Not Applicable.

Item 9A. Controls and Procedures

Disclosure Controls and Procedures

The Company, under the supervision and with the participation of the Company’s management, including the Company’s Chief Executive Officer and Chief Financial Officer, has evaluated the effectiveness of the Company’s disclosure controls and procedures, as defined in Rule 13a-15(e) of the Securities Exchange Act of 1934, as amended (“Exchange Act”), as of the end of the period covered by this report. Based on that evaluation, the Chief Executive Officer and the Chief Financial Officer have concluded that the Company’s disclosure controls and procedures were effective and provided reasonable assurance that information required to be disclosed in reports filed under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the rules and forms of the Securities and Exchange Commission, and that such information is accumulated and communicated to the Company’s management, including its principal executive officer and principal financial officer, as appropriate, to allow timely decisions regarding required disclosure. Because of the inherent limitations in all control systems, any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving the desired control objectives, and management necessarily is required to apply its judgment in evaluating the cost-benefit relationship of possible controls and procedures. Furthermore, the Company’s controls and procedures can be circumvented by the individual acts of some persons, by collusion of two or more people or by management override of the control and misstatements due to error or fraud may occur and not be detected on a timely basis.

Changes in Internal Control over Financial Reporting

As required by Rule 13a-15(d) of the Exchange Act, our management, including our principal executive officer and our principal financial officer, conducted an evaluation of the internal control over financial reporting to determine whether any changes occurred during the quarter ended December 31, 2021 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting. Based on that evaluation, our principal executive officer and principal financial officer concluded there were no such changes.

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.

The Company’s Chief Executive Officer and Chief Financial Officer have assessed the effectiveness of the Company’s internal control over financial reporting as of December 31, 2021. In making this assessment, the Company’s Chief Executive Officer and Chief

26

Table of Contents

Financial Officer have used the criteria set forth by the Committee of Sponsoring Organizations of the Treadway Commission (“COSO”) in Internal Control – Integrated Framework (2013). Based on our assessment, the Company’s Chief Executive Officer and Chief Financial Officer believe that, as of December 31, 2021, the Company’s internal control over financial reporting is effective based on those criteria.

BDO USA, LLP, the independent registered public accounting firm which audits our financial statements, has provided an attestation report on our internal control over financial reporting as of December 31, 2021.

​

27

Table of Contents

Report of Independent Registered Public Accounting Firm

Shareholders and Board of Directors

Hudson Technologies, Inc.

Woodcliff Lake, NJ

Opinion on Internal Control over Financial Reporting

We have audited Hudson Technologies, Inc. and subsidiaries’ (the “Company’s”) internal control over financial reporting as of December 31, 2021, based on criteria established in Internal Control – Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (the “COSO criteria”). In our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2021, based on the COSO criteria.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (“PCAOB”), the consolidated balance sheets of the Company and subsidiaries as of December 31, 2021 and 2020, the related consolidated statements of operations, stockholders’ equity, and cash flows for each of the three years in the period ended December 31, 2021, and the related notes and our report dated March 24, 2022 expressed an unqualified opinion.

Basis for Opinion

The Company’s management is responsible for maintaining effective internal control over financial reporting and for its assessment of the effectiveness of internal control over financial reporting, included in the accompanying Item 9A, Management’s Report on Internal Control over Financial Reporting. Our responsibility is to express an opinion on the Company’s internal control over financial reporting based on our audit. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audit of internal control over financial reporting in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all material respects. Our audit included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, and testing and evaluating the design and operating effectiveness of internal control based on the assessed risk. Our audit also included performing such other procedures as we considered necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion.

Definition and Limitations of Internal Control over Financial Reporting

A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company’s internal control over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

/s/ BDO USA, LLP | ​

​

Stamford, CT

March 24, 2022

28

Table of Contents

Item 9B. Other Information

None.

Item 9C. Disclosure Regarding Foreign Jurisdictions that Prevent Inspections

Not applicable.

Part III

Item 10. Directors, Executive Officers and Corporate Governance

Reference is made to the disclosure required by Items 401, 405, 406, and 407(c)(3), (d)(4), and (d)(5) of Regulation S-K to be contained in the Registrant's definitive proxy statement to be mailed to stockholders on or about April 27, 2022, and to be filed with the Securities and Exchange Commission.

Item 11. Executive Compensation

Reference is made to the disclosure required by Items 402 and 407(e)(4) and (e)(5) of Regulation S-K to be contained in the Registrant's definitive proxy statement to be mailed to stockholders on or about April 27, 2022, and to be filed with the Securities and Exchange Commission.

Item 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters

Reference is made to the disclosure required by Item 403 of Regulation S-K to be contained in the Registrant's definitive proxy statement to be mailed to stockholders on or about April 27, 2022, and to be filed with the Securities Exchange Commission.

Equity Compensation Plans

The following table provides certain information with respect to all of Hudson’s equity compensation plans as of December 31, 2021.

​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ |  | ​ | ​ |  | Number of
​ | ​ | ​ | ​ | ​ | ​ | ​ | securities
​ | ​ | ​ | ​ | ​ | ​ | ​ | remaining
​ | ​ | ​ | ​ | ​ | ​ | ​ | available for
​ | ​ | ​ | ​ | ​ | ​ | ​ | future
​ | ​ | ​ | ​ | ​ | ​ | ​ | issuance
​ | ​ | ​ | ​ | ​ | ​ | ​ | under equity
​ | ​ | Number of | ​ | ​ | ​ | ​ | compensation
​ | ​ | securities to | ​ | Weighted- | ​ | plans
​ | ​ | be | ​ | average | ​ | (excluding
​ | ​ | issued upon | ​ | exercise | ​ | securities
​ | ​ | exercise of | ​ | price of | ​ | reflected
​ | ​ | outstanding | ​ | outstanding | ​ | in column
​ | ​ | options and Stock Appreciation Rights | ​ | options | ​ | (a))
Plan Category | ​ | (a) | ​ | (b) | ​ | (c)
Equity compensation plans approved by security holders | ​ | 2,604,023 | ​ | $ | 1.03 | ​ | 5,069,255

​

​

Item 13. Certain Relationships and Related Transactions, and Director Independence

Reference is made to the disclosure required by Items 404 and 407(a) of Regulation S-K to be contained in the Registrant's definitive proxy statement to be mailed to stockholders on or about April 27, 2022, and to be filed with the Securities and Exchange Commission.

29

Table of Contents

Item 14. Principal Accountant Fees and Services

Reference is made to the proposal regarding the approval of the Registrant's independent registered public accounting firm to be contained in the Registrant's definitive proxy statement to be mailed to stockholders on or about April 27, 2022, and to be filed with the Securities and Exchange Commission.

​

30

Table of Contents

Part IV

​

​ | ​ | ​
Item 15. |  | Exhibits and Financial Statement Schedules
(A)(1) | ​ | Financial Statements
​ | ​ | The consolidated financial statements of Hudson Technologies, Inc. appear after Item 16 of this report
(A)(2) | ​ | Financial Statement Schedules
​ | ​ | None
(A)(3) | ​ | Exhibits
2.1 | ​ | Stock Purchase Agreement, dated August 9, 2017, by and among Hudson Technologies, Inc., Hudson Holdings, Inc. and Airgas, Inc. (17)
3.1 | ​ | Certificate of Incorporation and Amendment. (1)
3.2 | ​ | Amendment to Certificate of Incorporation, dated July 20, 1994. (1)
3.3 | ​ | Amendment to Certificate of Incorporation, dated October 26, 1994. (1)
3.4 | ​ | Certificate of Amendment of the Certificate of Incorporation dated March 16, 1999. (2)
3.5 | ​ | Certificate of Correction of the Certificate of Amendment dated March 25, 1999. (2)
3.6 | ​ | Certificate of Amendment of the Certificate of Incorporation dated March 29, 1999. (2)
3.7 | ​ | Certificate of Amendment of the Certificate of Incorporation dated February 16, 2001. (3)
3.8 | ​ | Certificate of Amendment of the Certificate of Incorporation dated March 20, 2002. (4)
3.9 | ​ | Amendment to Certificate of Incorporation dated January 3, 2003. (5)
3.10 | ​ | Amended and Restated By-Laws. (3 5)
3.11 | ​ | Certificate of Amendment of the Certificate of Incorporation dated September 15, 2015. (14)
4.1 | ​ | Description of Equity Securities. (33)
10.1 | ​ | 2004 Stock Incentive Plan. (7)*
10.2 | ​ | Agreement with Brian F. Coleman, as amended. (9)*
10.3 | ​ | 2008 Stock Incentive Plan. (8)*
10.4 | ​ | Form of Incentive Stock Option Agreement under the 2008 Stock Incentive Plan with full vesting upon issuance. (9)*
10.5 | ​ | Form of Incentive Stock Option Agreement under the 2008 Stock Incentive Plan with options vesting in equal installments over two year period. (9)*
10.6 | ​ | Form of Non-Incentive Stock Option Agreement under the 2008 Stock Incentive Plan with full vesting upon issuance. (9)*
10.7 | ​ | Form of Non-Incentive Stock Option Agreement under the 2008 Stock Incentive Plan with options vesting in equal installments over two year period. (9)*
10.8 | ​ | Long Term Care Insurance Plan Summary. (10)*
10.9 | ​ | Amendment No. 1 to the Hudson Technologies, Inc. 2008 Stock Incentive Plan adopted October 22, 2013. (11) *
10.10 | ​ | 2014 Stock Incentive Plan (12)*
10.11 | ​ | Form of Incentive Stock Option Agreement under the 2014 Stock Incentive Plan with full vesting upon issuance. (13)*
10.12 | ​ | Form of Incentive Stock Option Agreement under the 2014 Stock Incentive Plan with options vesting in equal installments over two year period. (13)*
10.13 | ​ | Form of Non-Incentive Stock Option Agreement under the 2014 Stock Incentive Plan with full vesting upon issuance. (13)*
10.14 | ​ | Form of Non-Incentive Stock Option Agreement under the 2014 Stock Incentive Plan with options vesting in equal installments over two year period. (13)*
10.15 | ​ | Form of Incentive Barrier Stock Option Agreement under the 2014 Stock Incentive Plan with full vesting upon issuance. (13)*
10.16 | ​ | Form of Non-Incentive Barrier Stock Option Agreement under the 2014 Stock Incentive Plan with full vesting upon issuance. (13)*
10.17 | ​ | Form of Incentive Barrier Stock Option Agreement under the 2008 Stock Incentive Plan with full vesting upon issuance. (13)*
10.18 | ​ | Form of Non-Incentive Barrier Stock Option Agreement under the 2008 Stock Incentive Plan with full vesting upon issuance. (13)*
10.19 | ​ | Amended and Restated Agreement with Brian Coleman (15)*
10.20 | ​ | Agreement, dated September 5, 2016, between Hudson Technologies, Inc. and Nat Krishnamurti. (16)*
10.21 | ​ | Term Loan Credit and Security Agreement dated October 10, 2017 with U.S. Bank National Association as Administrative Agent and Collateral Agent for the Term Lenders (18)

31

Table of Contents

10.22 | ​ | Guaranty and Suretyship Agreement dated October 10, 2017 by Hudson Technologies, Inc. (18)
10.23 | ​ | 2018 Stock Incentive Plan (19)*
10.24 | ​ | Form of Incentive Stock Option Agreement under the 2018 Stock Incentive Plan with full vesting upon issuance (25)*
10.25 | ​ | Form of Incentive Stock Option Agreement under the 2018 Stock Incentive Plan with vesting in equal installments over a specified of time. (25)*
10.26 | ​ | Form of Non-Qualified Stock Option Agreement under the 2018 Stock Incentive Plan with full vesting upon issuances (25)*
10.27 | ​ | Form of Non-Qualified Stock Option Agreement under the 2018 Stock Incentive Plan with vesting in equal installments over a specified period of time. (25)*
10.28 | ​ | Form of Non-Qualified Stock Option Agreement under the 2018 Stock Incentive Plan with conditional vesting provisions. (25)*
10.29 | ​ | Waiver and Second Amendment to Term Loan Credit and Security Agreement (20)
10.30 | ​ | Extension Letter dated October 15, 2018 (21)
10.31 | ​ | Second Extension Letter dated November 14, 2018 (22)
10.32 | ​ | Third Extension Letter dated November 21, 2018 (23)
10.33 | ​ | Waiver and Third Amendment to Term Loan and Security Agreement (24)
10.34 | ​ | Joinder to Term Loan Credit and Security Agreement and Other Documents (26)
10.35 | ​ | Second Amended and Restated Agreement dated as of September 20, 2019 between the Registrant and Brian F. Coleman (27)*
10.36 | ​ | Amended and Restated Agreement dated as of September 20, 2019 between the Registrant and Nat Krishnamurti (27)*
10.37 | ​ | Credit Agreement dated December 19, 2019 by and among Wells Fargo Bank, National Association, as Agent, the Lenders that are parties thereto, Hudson Technologies, Inc. and the Borrowers Described Therein (28)
10.38 | ​ | Guaranty and Security Agreement dated December 19, 2019 by and among the Grantors named therein and Wells Fargo Bank, National Association, as Agent (28)
10.39 | ​ | Waiver and Fourth Amendment to Term Loan and Credit and Security Agreement dated December 19, 2019 (28)
10.40 | ​ | Third Amended and Restated Agreement dated December 19, 2019 between the Registrant and Brian F. Coleman (28)*
10.41 | ​ | First Amendment to Credit Agreement dated April 23, 2020 with Wells Fargo Bank, National Association (29)
10.42 | ​ | Fifth Amendment to Term Loan and Credit and Security Agreement dated April 23, 2020 (29)
10.43 | ​ | Fourth Amended and Restated Agreement dated as of June 24, 2020 between the Registrant and Brian F. Coleman (30)*
10.44 | ​ | Agreement dated September 14, 2020 between the Company and Kenneth Gaglione (31)*
10.45 | ​ | Amended and Restated Agreement dated September 30, 2019 between the Company and Kathleen L. Houghton (31)*
10.46 | ​ | Hudson Technologies, Inc. 2020 Stock Incentive Plan (32)*
10.47 | ​ | Form of Incentive Stock Option Agreement under the 2020 Stock Incentive Plan with full vesting upon issuance (34)*
10.48 | ​ | Form of Incentive Stock Option Agreement under the 2020 Stock Incentive Plan with vesting in equal installments over a specified period of time (34)*
10.49 | ​ | Form of Non-Qualified Stock Option Agreement under the 2020 Stock Incentive Plan with full vesting upon issuance (34)*
10.50 | ​ | Form of Non-Qualified Stock Option Agreement under the 2020 Stock Incentive Plan with vesting in equal installments over a specified period of time (34)*
10.51 | ​ | Form of Non-Qualified Stock Option Agreement under the 2020 Stock Incentive Plan with conditional vesting provisions (34)*
10.52 | ​ | Credit Agreement dated March 2, 2022 by and among TCW Asset Management Company LLC, as Agent, Hudson Technologies, Inc., and the Borrowers and Lenders party thereto (35)
10.53 | ​ | Guaranty and Security Agreement dated March 2, 2022 by and among the Grantors named therein and TCW Asset Management Company LLC, as Agent (35)
10.54 | ​ | Amended and Restated Credit Agreement dated March 2, 2022 by and among Wells Fargo Bank, National Association, as Agent, Hudson Technologies, Inc., and the Borrowers and Lenders party thereto (35)
10.55 | ​ | First Amendment to Guaranty and Security Agreement dated March 2, 2022 by and among the Grantors named therein and Wells Fargo Bank, National Association, as Agent (35)
10.56 | ​ | Form of Stock Appreciation Rights Award Agreement (36)
14 | ​ | Code of Business Conduct and Ethics. (6)
21 | ​ | Subsidiaries of the Company. (36)
23.1 | ​ | Consent of BDO USA, LLP. (36)
31.1 | ​ | Certification of Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002. (36)

32

Table of Contents

31.2 | ​ | Certification of Chief Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002. (36)
32.1 | ​ | Certification of the Chief Executive Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of Sarbanes-Oxley Act of 2002. (36)
32.2 | ​ | Certification of the Chief Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of Sarbanes-Oxley Act of 2002. (36)
101 | ​ | Interactive data file pursuant to Rule 405 of Regulation S-T. (36)
(1) | ​ | Incorporated by reference to the comparable exhibit filed with the Company's Registration Statement on Form SB-2 (No. 33-80279-NY).
(2) | ​ | Incorporated by reference to the comparable exhibit filed with the Company's Quarterly Report on Form 10-QSB for the quarter ended June 30, 1999.
(3) | ​ | Incorporated by reference to the comparable exhibit filed with the Company's Annual Report on Form 10-KSB for the year ended December 31, 2000.
(4) | ​ | Incorporated by reference to the comparable exhibit filed with the Company’s Annual Report on Form 10-KSB for the year ended December 31, 2001.
(5) | ​ | Incorporated by reference to the comparable exhibit filed with the Company's Annual Report on Form 10-KSB for the year ended December 31, 2002.
(6) | ​ | Incorporated by reference to the comparable exhibit filed with the Company’s Current Report on Form 8-K, for the event dated March 3, 2005, and filed May 31, 2005.
(7) | ​ | Incorporated by reference to Appendix B to the Company’s Definitive Proxy Statement on Schedule 14A filed August 18, 2004 .
(8) | ​ | Incorporated by reference to Appendix I to the Company’s Definitive Proxy Statement on Schedule 14A filed July 29, 2008.
(9) | ​ | Incorporated by reference to the comparable exhibit filed with the Company’s Annual Report on Form 10-K for the year ended December 31, 2008.
(10) | ​ | Incorporated by reference to the comparable exhibit filed with the Company’s Quarterly Report on Form 10-Q for the quarter ended September 30, 2012.
(11) | ​ | Incorporated by reference to the comparable exhibit filed with the Company’s Annual Report on Form 10-K for the year ended December 31, 2013.
(12) | ​ | Incorporated by reference to Appendix B to the Company’s Definitive Proxy Statement on Schedule 14A filed August 12, 2014.
(13) | ​ | Incorporated by reference to the comparable exhibit filed with the Company’s Quarterly Report on Form 10-Q for the quarter ended September 30, 2014.
(14) | ​ | Incorporated by reference to the comparable exhibit filed with the Company’s Quarterly Report on Form 10-Q for the quarter ended September 30, 2015.
(15) | ​ | Incorporated by reference to the comparable exhibit filed with the Company Annual Report on form 10-K for the year ended December 31, 2015.
(16) | ​ | Incorporated by reference to the comparable exhibit filed with the Company’s Current Report on Form 8-K filed September 9, 2016.
(17) | ​ | Incorporated by reference to the comparable exhibit filed with the Company’s Current Report on Form 8-K filed August 9, 2017.
(18) | ​ | Incorporated by reference to the comparable exhibit filed with the Company’s Current Report on Form 8-K filed October 11, 2017.
(19) | ​ | Incorporated by reference to the comparable exhibit filed with the Company’s Registration Statement on Form S-8 filed December 21, 2018.
(20) | ​ | Incorporated by reference to the comparable exhibit filed with the Company’s Current Report on Form 8-K filed August 15, 2018.
(21) | ​ | Incorporated by reference to the comparable exhibit filed with the Company’s Current Report on Form 8-K filed October 16, 2018.
(22) | ​ | Incorporated by reference to the comparable exhibit filed with the Company’s Current Report on Form 8-K filed November 15, 2018.
(23) | ​ | Incorporated by reference to the comparable exhibit filed with the Company’s Current Report on Form 8-K filed November 23, 2018.
(24) | ​ | Incorporated by reference to the comparable exhibit filed with the Company’s Current Report on Form 8-K filed December 3, 2018.

33

Table of Contents

(25) | ​ | Incorporated by reference to the comparable exhibit filed with the Company’s Annual Report on Form 10-K for the year ended December 31, 2018.
(26) | ​ | Incorporated by reference to the comparable exhibit filed with the Company’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2019.
(27) | ​ | Incorporated by reference to the comparable exhibit filed with the Company’s Current Report on Form 8-K filed September 23, 2019.
(28) | ​ | Incorporated by reference to the comparable exhibit filed with the Company’s Current Report on Form 8-K filed December 20, 2019.
(29) | ​ | Incorporated by reference to the comparable exhibit filed with the Company’s Quarterly Report on Form 10-Q filed May 15, 2020.
(30) | ​ | Incorporated by reference to the comparable exhibit filed with the Company’s Current Report on Form 8-K filed July 20, 2020.
(31) | ​ | Incorporated by reference to the comparable exhibit filed with the Company’s Current Report on Form 8-K filed September 16, 2020.
(32) | ​ | Incorporated by reference to the comparable exhibit filed with the Company’s Registration Statement on Form S-8 filed June 30, 2020.
(33) | ​ | Incorporated by reference to the comparable exhibit filed with the Company’s Annual Report on Form 10-K filed March 13, 2020.
(34) | ​ | Incorporated by reference to the comparable exhibit filed with the Company’s Annual Report on Form 10-K filed March 12, 2021.
(35) | ​ | Incorporated by reference to the comparable exhibit filed with the Company’s Current Report on Form 8-K filed March 3, 2022.
(36) | ​ | Filed herewith.
(*) | ​ | Denotes Management Compensation Plan, agreement or arrangement.

​

​

Item 16. Form 10-K Summary

None.

​

​

34

Table of Contents

Hudson Technologies, Inc.

Consolidated Financial Statements

​

Contents |  | ​
Report of Independent Registered Public Accounting Firm (BDO USA, LLP Stamford, Connecticut, PCAOB ID # 243) | ​ | 36
Audited Consolidated Financial Statements: | ​ | ​
Consolidated Balance Sheets as of December 31, 2021 and 2020 | ​ | 38
Consolidated Statements of Operations for the years ended December 31, 2021 and December 31, 2 0 20 | ​ | 39
Consolidated Statements of Stockholders' Equity for the years ended December 31, 2021 and December 31, 2 0 20 | ​ | 40
Consolidated Statements of Cash Flows for the years ended December 31, 2021 and December 31, 202 0 | ​ | 41
Notes to the Consolidated Financial Statements | ​ | 42

​

​

35

Table of Contents

​

Report of Independent Registered Public Accounting Firm

Shareholders and Board of Directors

Hudson Technologies, Inc.

Woodcliff Lake, NJ

Opinion on the Consolidated Financial Statements

We have audited the accompanying consolidated balance sheets of Hudson Technologies, Inc. (the “Company”) as of December 31, 2021 and 2020, the related consolidated statements of operations, stockholders’ equity, and cash flows for each of the two years in the period ended December 31, 2021, and the related notes (collectively referred to as the “consolidated financial statements”). In our opinion, the consolidated financial statements present fairly, in all material respects, the financial position of the Company at December 31, 2021 and 2020, and the results of its operations and its cash flows for each of the two years in the period ended December 31, 2021, in conformity with accounting principles generally accepted in the United States of America.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (“PCAOB”), the Company's internal control over financial reporting as of December 31, 2021, based on criteria established in Internal Control – Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (“COSO”) and our report dated March 24, 2022 expressed an unqualified opinion.

Basis for Opinion

These consolidated financial statements are the responsibility of the Company’s management. Our responsibility is to express an opinion on the Company’s consolidated financial statements based on our audits. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) (“PCAOB”) and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the consolidated financial statements are free of material misstatement, whether due to error or fraud.

Our audits included performing procedures to assess the risks of material misstatement of the consolidated financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the consolidated financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the consolidated financial statements. We believe that our audits provide a reasonable basis for our opinion.

Critical Audit Matter

The critical audit matter communicated below is a matter arising from the current period audit of the consolidated financial statements that was communicated or required to be communicated to the audit committee and that: (1) relates to accounts or disclosures that are material to the consolidated financial statements and (2) involved our especially challenging, subjective, or complex judgments. The communication of critical audit matter does not alter in any way our opinion on the consolidated financial statements, taken as a whole, and we are not, by communicating the critical audit matter below, providing separate opinions on the critical audit matter or on the accounts or disclosures to which it relates.

Goodwill Impairment Assessment

As described in Note 1 and 8 to the Company’s consolidated financial statements, the Company’s goodwill balance as of December 31, 2021 was $47.8 million. Goodwill is tested for impairment at the reporting unit level. The Company has one reporting unit at December 31, 2021. The Company performs an annual impairment test of goodwill on a qualitative or quantitative basis (the first day of the fourth

36

Table of Contents

quarter) and between annual tests if an event occurs or circumstances change that would more likely than not reduce the fair value of an asset below its carrying value. During the fourth quarter of 2021, the Company completed its annual impairment test as of October 1 and determined in their qualitative assessment that it is more likely than not that the fair value of the only reporting unit is greater than its carrying amount, resulting in no goodwill impairment. The qualitative assessment requires management to make assumptions related to macroeconomic or business conditions affecting the industry. Changes in these assumptions could have a significant impact on the impairment evaluation and could result in goodwill impairment charges.

We identified the evaluation of goodwill impairment qualitative assessment as a critical audit matter. Auditing the reasonableness of management’s assumptions required a high degree of auditor judgment and an increased effort due to the nature and extent required in evaluating the qualitative assessment.

The primary procedures we performed to address this critical audit matter included:

| ● | Evaluating the Company's impairment assessment for its reporting unit by considering the appropriateness of the macroeconomic, industry, market factors and other entity-specific events identified by the Company against other evidence obtained through other procedures.

| ● | Evaluating management's qualitative assessments by (i) analyzing financial performance of the reporting unit, (ii) recalculating the Company's market capitalization, and (iii) comparing actual financial performance with forecasted financial performance used in previous impairment assessments to evaluate if there were any negative effects on earnings and cash flows that could impact the analysis.

​

/s/ BDO USA, LLP | ​

​

We have served as the Company's auditor since 1994.

​

Stamford, CT

​

March 24, 2022

37

Table of Contents

Hudson Technologies, Inc. and Subsidiaries

Consolidated Balance Sheets

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

​

​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31,
​ |  | 2021 |  | 2020
Assets | ​ | ​ | ​ | ​ | ​ | ​
Current assets: |  | ​ |  |  | ​ |
Cash and cash equivalents | ​ | $ | 3,492 | ​ | $ | 1,348
Trade accounts receivable – net | ​ |  | 14,223 | ​ |  | 9,806
Inventories | ​ |  | 94,144 | ​ |  | 44,460
Prepaid expenses and other current assets | ​ |  | 8,090 | ​ |  | 6,528
Total current assets | ​ |  | 119,949 | ​ |  | 62,142
​ | ​ | ​ | ​ | ​ | ​ | ​
Property, plant and equipment, less accumulated depreciation | ​ |  | 20,093 | ​ |  | 21,910
Goodwill | ​ |  | 47,803 | ​ |  | 47,803
Intangible assets, less accumulated amortization | ​ |  | 20,357 | ​ |  | 23,150
Right of use asset | ​ | ​ | 6,803 | ​ | ​ | 6,559
Other assets | ​ |  | 710 | ​ |  | 85
Total Assets | ​ | $ | 215,715 | ​ | $ | 161,649
​ | ​ | ​ | ​ | ​ | ​ | ​
Liabilities and Stockholders’ Equity | ​ |  |  | ​ |  |
Current liabilities: | ​ |  |  | ​ |  |
Trade accounts payable | ​ | $ | 9,623 | ​ | $ | 7,644
Accrued expenses and other current liabilities | ​ |  | 30,637 | ​ |  | 19,417
Accrued payroll | ​ |  | 3,931 | ​ |  | 1,394
Current maturities of long-term debt | ​ |  | 5,248 | ​ |  | 7,314
Short-term debt | ​ |  | 15,000 | ​ |  | 2,000
Total current liabilities | ​ |  | 64,439 | ​ |  | 37,769
Deferred tax liability | ​ |  | 1,692 | ​ |  | 1,355
Long-term lease liabilities | ​ | ​ | 5,500 | ​ | ​ | 3,927
Long-term debt, less current maturities, net of deferred financing costs | ​ |  | 73,145 | ​ |  | 77,976
Total Liabilities | ​ |  | 144,776 | ​ |  | 121,027
​ | ​ | ​ | ​ | ​ | ​ | ​
Commitments and contingencies | ​ |  |  | ​ |  |
​ | ​ | ​ | ​ | ​ | ​ | ​
Stockholders’ equity: | ​ |  |  | ​ |  |
Preferred stock, shares authorized 5,000,000: Series A Convertible preferred stock, $0.01 par value ($100 liquidation preference value); shares authorized 150,000; none issued or outstanding | ​ |  | — | ​ |  | —
Common stock, $0.01 par value; shares authorized 100,000,000; issued and outstanding: 44,758,925 and 43,347,887 respectively | ​ |  | 448 | ​ |  | 433
Additional paid-in capital | ​ |  | 116,312 | ​ |  | 118,269
Accumulated deficit | ​ |  | (45,821) | ​ |  | (78,080)
Total Stockholders’ Equity | ​ |  | 70,939 | ​ |  | 40,622
​ | ​ | ​ | ​ | ​ | ​ | ​
Total Liabilities and Stockholders’ Equity | ​ | $ | 215,715 | ​ | $ | 161,649

​

See Accompanying Notes to the Consolidated Financial Statements.

​

38

Table of Contents

Hudson Technologies, Inc. and Subsidiaries

Consolidated Statements of Operations

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

​

​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | For the years ended December 31,
​ |  | 2021 |  | 2020
Revenues | ​ | $ | 192,748 | ​ | $ | 147,605
Cost of sales | ​ |  | 121,084 | ​ |  | 112,195
Gross profit | ​ |  | 71,664 | ​ |  | 35,410
​ | ​ | ​ | ​ | ​ | ​ | ​
Operating expenses: | ​ |  | ​ | ​ |  |
Selling, general and administrative | ​ |  | 26,566 | ​ |  | 26,644
Amortization | ​ |  | 2,793 | ​ |  | 2,862
Total operating expenses | ​ |  | 29,359 | ​ |  | 29,506
​ | ​ | ​ | ​ | ​ | ​ | ​
Operating income | ​ |  | 42,305 | ​ |  | 5,904
​ | ​ | ​ | ​ | ​ | ​ | ​
Other (expense) income: | ​ |  | ​ | ​ |  |
Interest expense | ​ |  | (11,376) | ​ |  | (12,330)
Other income | ​ |  | 2,470 | ​ |  | 1,033
Total other (expense) | ​ |  | (8,906) | ​ |  | (11,297)
​ | ​ | ​ | ​ | ​ | ​ | ​
Income (loss) before income taxes | ​ |  | 33,399 | ​ |  | (5,393)
​ | ​ | ​ | ​ | ​ | ​ | ​
Income tax expense (benefit) | ​ |  | 1,140 | ​ |  | (185)
​ | ​ | ​ | ​ | ​ | ​ | ​
Net income (loss) | ​ | $ | 32,259 | ​ | $ | (5,208)
​ | ​ | ​ | ​ | ​ | ​ | ​
Net income (loss) per common share – Basic | ​ | $ | 0.74 | ​ | $ | (0.12)
Net income (loss) per common share – Diluted | ​ | $ | 0.69 | ​ | $ | (0.12)
​ | ​ | ​ | ​ | ​ | ​ | ​
Weighted average number of shares outstanding – Basic | ​ |  | 43,765,443 | ​ |  | 42,710,381
​ | ​ | ​ | ​ | ​ | ​ | ​
Weighted average number of shares outstanding – Diluted | ​ |  | 46,640,822 | ​ |  | 42,710,381

​

See Accompanying Notes to the Consolidated Financial Statements.

​

39

Table of Contents

Hudson Technologies, Inc. and Subsidiaries

Consolidated Statements of Stockholders’ Equity

(Amounts in thousands, except for share amounts)

​

​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | Retained | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | Earnings | ​ | ​ | ​
​ | ​ | Common Stock | ​ | Additional | ​ | (Accumulated | ​ | ​ | ​
​ |  | Shares |  | Amount |  | Paid-in Capital |  | Deficit) |  | Total
Balance at January 1, 2020 |  | 42,628,560 | ​ | $ | 426 | ​ | $ | 117,557 | ​ | $ | (72,872) | ​ | $ | 45,111
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Issuance of common stock upon exercise of stock options |  | 683,613 | ​ |  | 7 | ​ |  | 56 | ​ |  | — | ​ |  | 63
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Issuance of common stock for services |  | 35,714 | ​ |  | — | ​ |  | 35 | ​ |  | — | ​ |  | 35
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Value of share-based arrangements |  | — | ​ |  | — | ​ |  | 621 | ​ |  | — | ​ |  | 621
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Net loss |  | — | ​ |  | — | ​ |  | — | ​ |  | (5,208) | ​ |  | (5,208)
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Balance at December 31, 2020 |  | 43,347,887 | ​ | $ | 433 | ​ | $ | 118,269 | ​ | $ | (78,080) | ​ | $ | 40,622
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Issuance of common stock upon exercise of stock options |  | 1,398,979 | ​ |  | 14 | ​ |  | 187 | ​ |  | — | ​ |  | 201
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Excess tax benefits from exercise of stock options | ​ | — | ​ | ​ | — | ​ | ​ | (2,655) | ​ | ​ | — | ​ | ​ | (2,655)
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Issuance of common stock for services |  | 12,059 | ​ |  | 1 | ​ |  | — | ​ |  | — | ​ |  | 1
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Value of share-based arrangements |  | — | ​ |  | — | ​ |  | 511 | ​ |  | — | ​ |  | 511
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Net income |  | — | ​ |  | — | ​ |  | — | ​ |  | 32,259 | ​ |  | 32,259
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Balance at December 31, 2021 |  | 44,758,925 | ​ | $ | 448 | ​ | $ | 116,312 | ​ | $ | (45,821) | ​ | $ | 70,939

​

See Accompanying Notes to the Consolidated Financial Statements.

​

40

Table of Contents

Hudson Technologies, Inc. and Subsidiaries

Consolidated Statements of Cash Flows

(Amounts in thousands)

​

​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | For the years ended December 31,
​ |  | 2021 |  | 2020
Cash flows from operating activities: | ​ | ​ | ​ | ​ | ​ | ​
Net income (loss) | ​ | $ | 32,259 | ​ | $ | (5,208)
Adjustments to reconcile net income (loss) to cash provided by (used in) operating activities: | ​ |  | ​ | ​ |  |
Depreciation | ​ |  | 3,387 | ​ |  | 3,234
Amortization of intangible assets | ​ |  | 2,793 | ​ |  | 2,862
Gain on insurance proceeds | ​ |  | — | ​ |  | (1,000)
Forgiveness of Payroll Protection Program Loan | ​ | ​ | (2,475) | ​ | ​ | —
Lower of cost or net realizable value inventory adjustment | ​ |  | (2,806) | ​ |  | (3,935)
Allowance for doubtful accounts | ​ |  | 44 | ​ |  | 880
Amortization of deferred finance cost | ​ |  | 1,125 | ​ |  | 1,127
Value of share-based payment arrangements | ​ |  | 511 | ​ |  | 656
Deferred tax expense | ​ |  | 337 | ​ |  | 163
Changes in assets and liabilities: | ​ |  | ​ | ​ |  | ​
Trade accounts receivable | ​ |  | (4,461) | ​ |  | (2,625)
Inventories | ​ |  | (46,878) | ​ |  | 18,713
Prepaid and other assets | ​ |  | (2,120) | ​ |  | (2,192)
Lease obligations | ​ | ​ | 4 | ​ | ​ | 12
Income taxes receivable/payable | ​ |  | 674 | ​ |  | (300)
Accounts payable and accrued expenses | ​ |  | 16,378 | ​ |  | (700)
Cash (used in) provided by operating activities | ​ |  | (1,228) | ​ |  | 11,687
​ | ​ | ​ | ​ | ​ | ​ | ​
Cash flows from investing activities: | ​ |  | ​ | ​ |  | ​
Additions to property, plant and equipment | ​ |  | (1,922) | ​ |  | (1,470)
Proceeds from insurance policy | ​ | ​ | — | ​ | ​ | 1,000
Cash used in investing activities | ​ |  | (1,922) | ​ |  | (470)
​ | ​ | ​ | ​ | ​ | ​ | ​
Cash flows from financing activities: | ​ |  | ​ | ​ |  | ​
Net proceeds from issuances of common stock and exercises of stock options | ​ |  | 201 | ​ |  | 63
Excess tax benefits from exercise of stock options | ​ |  | (2,655) | ​ |  | —
Borrowing- Paycheck Protection Program | ​ | ​ | — | ​ | ​ | 2,475
Borrowing (repayment) of short-term debt – net | ​ |  | 13,000 | ​ |  | (12,000)
Repayment of long-term debt | ​ |  | (5,252) | ​ |  | (3,007)
Cash provided by (used in) financing activities | ​ |  | 5,294 | ​ |  | (12,469)
​ | ​ | ​ | ​ | ​ | ​ | ​
Increase (decrease) in cash and cash equivalents | ​ |  | 2,144 | ​ |  | (1,252)
Cash and cash equivalents at beginning of period | ​ |  | 1,348 | ​ |  | 2,600
Cash and cash equivalents at end of period | ​ | $ | 3,492 | ​ | $ | 1,348
​ | ​ | ​ | ​ | ​ | ​ | ​
Supplemental disclosure of cash flow information: | ​ |  | ​ | ​ |  | ​
Cash paid during period for interest | ​ | $ | 10,157 | ​ | $ | 11,380
Cash paid (refund) for income taxes- net | ​ | $ | 128 | ​ | $ | (48)

​

See Accompanying Notes to the Consolidated Financial Statements

​

41

Table of Contents

Hudson Technologies, Inc. and Subsidiaries

Notes to the Consolidated Financial Statements

Note 1 - Summary of Significant Accounting Policies

Business

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 operations consist of one reportable segment. The Company operates principally through its wholly-owned subsidiary, Hudson Technologies Company, and Aspen Refrigerants (“Aspen” or “ARI”), a division of 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 products and services are primarily used in commercial air conditioning, industrial processing and refrigeration systems, and include refrigerant and industrial gas sales, refrigerant management services consisting primarily of reclamation of refrigerants and RefrigerantSide® Services performed at a customer’s site, consisting of system decontamination to remove moisture, oils and other contaminants.

The Company’s SmartEnergy OPS® service is a web-based real time continuous monitoring service applicable to a facility’s refrigeration systems and other energy systems. The Company’s Chiller Chemistry® and Chill Smart® services are also predictive and diagnostic service offerings. As a component of the Company’s products and services, the Company also generates carbon offset projects.

During the year ended December 31, 2020 and continuing through the year ended December 31, 2021, the effects of a novel strain of coronavirus (“COVID-19”) pandemic and the related actions by governments around the world to attempt to contain the spread of the virus have materially impacted the global economy. While it is difficult to predict the full scale of the ongoing impact of the COVID-19 outbreak and business disruption, the Company has been taking actions to address the impact of the pandemic, such as working closely with our customers, reducing our expenses and monitoring liquidity. The impact of the pandemic and the corresponding actions were reflected into our judgments, assumptions and estimates to prepare the financial statements. As of the date of this filing, there has been no material impact on our ability to procure or distribute our products and services. However, if the duration of the COVID-19 pandemic is longer and the operational impact is greater than estimated, the judgments, assumptions and estimates will be updated and could result in different results in the future.

AIM Act

On September 23, 2021, the United States Environmental Protection Agency (“EPA”) issued the final rule establishing the framework to allocate allowances for virgin production and consumption of HFCs. The EPA is responsible for the administration of the HFC phase down enacted by Congress under the AIM Act.

The AIM Act directs the EPA to address the reduction in virgin HFCs and provides authority to do so in three respects:

| 1) | phase down the production and consumption of listed HFCs,

| 2) | manage these HFCs and their substitutes, and

| 3) | facilitate the transition to next-generation technologies.

Congress also required that EPA shall consider ways to promote reclamation in all phases of its implementation of the AIM Act. The final rule introduces a stepdown of 10% from baseline levels and a subsequent allowance rule must establish a cumulative 40% reduction in the baseline for 2024. 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, with allowances for 2023 and beyond to be determined at a later date. Reclamation will be critical to maintaining necessary HFC supply levels to ensure an orderly phasedown.

In preparing the accompanying consolidated financial statements, and in accordance with Accounting Standards Codification (“ASC”) 855-10 “Subsequent Events”, the Company’s management has evaluated subsequent events through the date that the financial statements were filed.

42

Table of Contents

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.

Consolidation

The consolidated financial statements, which have been prepared in accordance with accounting principles generally accepted in the United States, 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 Company does not present a statement of comprehensive income (loss) as its comprehensive income (loss) is the same as its net income (loss).

Fair Value of Financial Instruments

The carrying values of financial instruments including cash, trade accounts receivable and accounts payable approximate fair value at December 31, 2021 and December 31, 2020, because of the relatively short maturity of these instruments. The carrying value of debt approximates fair value, due to the variable rate nature of the debt, as of December 31, 2021 and December 31, 2020. Please see Note 2 for further details.

Credit Risk

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 receivable 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 reserves based on factors that affect the collectability of the accounts receivable balances.

For the year ended December 31, 2021, one customer accounted for 10% of the Company’s revenues and at December 31, 2021, there were $3.1 million of outstanding receivables from this customer.For the year ended December 31, 2020, one customer accounted for 14% of the Company's revenues and at December 31, 2020, there were $2.9 million of outstanding receivables from this customer.

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 operating results and financial position.

Cash and Cash Equivalents

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

Inventories

Inventories, consisting primarily of refrigerant products available for sale, are stated at the lower of cost, on a first-in first-out basis, or net realizable value. Where the market price of inventory is less than the related cost, the Company may be required to write down its inventory through a lower of cost or net realizable value adjustment, the impact of which would be reflected in cost of sales on the Consolidated Statements of Operations. Any such adjustment would be based on management’s judgment regarding future demand and market conditions and analysis of historical experience.

Property, Plant and Equipment

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

43

Table of Contents

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.

Goodwill

The Company has made acquisitions that included a significant amount of goodwill and other intangible assets. The Company applies the purchase method of accounting for acquisitions, which among other things, requires the recognition of goodwill (which represents the excess of the purchase price of the acquisition over the fair value of the net assets acquired and identified intangible assets). We test our goodwill for impairment annually on a qualitative or quantitative basis (the first day of the fourth quarter) and between annual tests if an event occurs or circumstances change that would more likely than not reduce the fair value of an asset below its carrying value. Goodwill is tested for impairment at the reporting unit level. When performing the annual impairment test, we have the option of first performing a qualitative assessment, which requires management to make assumptions affecting a reporting unit, to determine the existence of events and circumstances that would lead to a determination that it is more likely than not that the fair value of a reporting unit is less than its carrying amount. If such a conclusion is reached, we are then required to perform a quantitative impairment assessment of goodwill. The Company has one reporting unit at December 31, 2021. Other intangible assets that meet certain criteria are amortized over their estimated useful lives.

An impairment charge is recorded based on the excess of a reporting unit’s carrying amount over its fair value. An impairment charge would be recognized when the carrying amount exceeds the estimated fair value of a reporting unit. These impairment evaluations use many assumptions and estimates in determining an impairment loss, including certain assumptions and estimates related to future earnings. If the Company does not achieve its earnings objectives, the assumptions and estimates underlying these impairment evaluations could be adversely affected, which could result in an asset impairment charge that would negatively impact operating results. During the fourth quarter of 2021, we completed our annual impairment test as of October 1 and determined in our qualitative assessment that it is more likely than not that the fair value of the reporting unit is greater than its carrying amount, resulting in no goodwill impairment. There can be no assurances that future sustained declines in macroeconomic or business conditions affecting our industry will not occur, which could result in goodwill impairment charges in future periods.

There were no goodwill impairment losses recognized in 2020 or 2021.

Leases

In February 2016, the FASB issued Accounting Standards Update No. 2016-02, Leases (Topic 842) (ASU 2016-02), as amended, which generally requires lessees to recognize operating and financing lease liabilities and corresponding right-of-use assets on the balance sheet and to provide enhanced disclosures surrounding the amount, timing and uncertainty of cash flows arising from leasing arrangements. In July 2018, the FASB issued ASU No. 2018-11, Leases - Targeted Improvements, as an update to the previously-issued guidance. This update added a transition option which allows for the recognition of a cumulative effect adjustment to the opening balance of retained earnings in the period of adoption without recasting the financial statements in periods prior to adoption. The Company has used the modified retrospective transition approach in ASU No. 2018-11 and applied the new lease requirements through a cumulative-effect adjustment in the period of adoption. The Company elected the package of practical expedients permitted under the transition guidance, which allows it to carryforward its historical lease classification, its assessment on whether a contract is or contains a lease, and its initial direct costs for any leases that existed prior to adoption of the new standard. The Company also elected to combine lease and non-lease components and to keep leases with an initial term of 12 months or less off the balance sheet and recognize the associated lease payments in the consolidated statements of operations on a straight-line basis over the lease term. The Company recorded approximately $8.1 million as total right-of-use assets and total lease liabilities on its consolidated balance sheet as of January 1, 2019. The Company's accounting for finance leases remained substantially unchanged. Please see Note 6 for further details and current balances.

Cylinder Deposit Liability

The cylinder deposit liability, which is included in Accrued expenses and other current liabilities on the Company’s Balance Sheet, represents the amount due to customers for the return of refillable cylinders. ARI charges its customers cylinder deposits upon the shipment of refrigerant gases that are contained in refillable cylinders. The amount charged to the customer by ARI approximates the

44

Table of Contents

cost of a new cylinder of the same size. Upon return of a cylinder, this liability is reduced. The cylinder deposit liability balance was $12.3 million and $11.3 million at December 31, 2021 and 2020, respectively.

Revenues and Cost of Sales

The Company’s products and services are primarily used in commercial air conditioning, industrial processing and refrigeration systems. Most of the Company’s revenues are realized from the sale of refrigerant and industrial gases and related products. The Company also generates revenue from refrigerant management services performed at a customer’s site and in-house. The Company conducts its business primarily within the US.

The Company applies the FASB’s guidance on revenue recognition, which requires the Company to recognize revenue in an amount that reflects the consideration to which the Company expects to be entitled in exchange for goods or services transferred to its customers. In most instances, the Company’s contract with a customer is the customer’s purchase order and the sales price to the customer is fixed. For certain customers, the Company may also enter into a sales agreement outlining a framework of terms and conditions applicable to future purchase orders received from that customer. Because the Company’s contracts with customers are typically for a single customer purchase order, the duration of the contract is usually less than one year. The Company’s performance obligations related to product sales are satisfied at a point in time, which may occur upon shipment of the product or receipt by the customer, depending on the terms of the arrangement. The Company’s performance obligations related to reclamation and RefrigerantSide® services are generally satisfied at a point in time when the service is performed. Accordingly revenues are recorded upon the shipment of the product, or in certain instances upon receipt by the customer, or the completion of the service.

In July 2016 the Company was awarded, as prime contractor, a five-year contract, including a five-year renewal option,which has been exercised, by the United States Defense Logistics Agency (“DLA”) for the management, supply, and sale of refrigerants, compressed gases, cylinders and related services. Due to the contract containing multiple performance obligations, the Company assessed the arrangement in accordance with ASC 606. The Company determined that the sale of refrigerants and the management services provided under the contract each have stand-alone value. Accordingly, the performance obligations related to the sale of refrigerants is satisfied at a point in time, mainly when the customer receives and obtains control of the product. The performance obligation related to management service revenue is satisfied over time and revenue is recognized on a straight-line basis over the term of the arrangement as the management services are provided.

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. In general, the Company performs shipping and handling services for its customers in connection with the delivery of refrigerant and other products. The Company elected to implement ASC 606-10-25-18B, whereby the Company accounts for such shipping and handling as activities to fulfill the promise to transfer the good. 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 Product and related sales and RefrigerantSide® Services revenues. The revenues for each of these lines are as follows:

​

​ | ​ | ​ | ​ | ​ | ​ | ​
Years Ended December 31, |  | 2021 |  | 2020
(in thousands) | ​ | ​ | ​ | ​ | ​ | ​
Product and related sales | ​ | $ | 187,799 | ​ | $ | 143,210
RefrigerantSide ® Services | ​ |  | 4,949 | ​ |  | 4,395
Total | ​ | $ | 192,748 | ​ | $ | 147,605

​

Income Taxes

The Company is taxed at statutory corporate income tax rates after adjusting income reported for financial statement purposes for certain items. Current income tax expense (benefit) reflects the tax results of revenues and expenses currently taxable or deductible. The Company utilizes the asset and liability method of accounting for deferred income taxes, which provides for the recognition of deferred tax assets or liabilities, based on enacted tax rates and laws, for the differences between the financial and income tax reporting bases of assets and liabilities.

45

Table of Contents

The tax benefit associated with the Company’s net operating loss carry forwards (“NOLs”) is recognized to the extent that the Company expects to realize future taxable income. As a result of a prior “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. To the extent that the Company utilizes its NOLs, it will not pay tax on such income. However, to the extent that the Company’s net income, if any, exceeds the annual NOL limitation, it will pay income taxes based on the then existing statutory rates. In addition, certain states either do not allow or limit NOLs and as such the Company will be liable for certain state income taxes.

As of December 31, 2021, the Company had federal NOLs of approximately $29.3 million, none of which have an expiration date and which are subject to annual limitations of 80% of taxable earnings. As of December 31, 2021, the Company had state tax NOLs of approximately $21.0 million expiring in various years. We review the likelihood that we will realize the benefit of our deferred tax assets, and therefore the need for valuation allowances, on an annual basis in the fourth quarter of the year, and more frequently if events indicate that a review is required. In determining the requirement for a valuation allowance, the historical and projected financial results are considered, along with all other available positive and negative evidence.

Concluding that a valuation allowance is not required is difficult when there is significant negative evidence that is objective and verifiable, such as cumulative losses in recent years. We utilize a rolling twelve quarters of pre-tax income or loss adjusted for significant permanent book to tax differences, as well as non-recurring items, as a measure of our cumulative results in recent years. Based on our assessment as of December 31, 2018, 2019, 2020 and 2021, we concluded that due to the uncertainty that the deferred tax assets will not be fully realized in the future, we recorded a valuation allowance of approximately $11.3 million during 2018, and due to additional losses, increased the valuation allowance through 2019 and 2020 to $19.0 million. For the year ended December 31, 2021, and due to additional income that resulted in the utilization of net operating losses of $16.8 million, we reduced the valuation allowance by $3.9 million resulting in an ending balance of $15.1 million as of December 31, 2021.

The Company evaluates uncertain tax positions, if any, by determining if it is more likely than not to be sustained upon examination by the taxing authorities. As of December 31, 2021 and December 31, 2020, the Company believes it had no uncertain tax positions and there are no open federal or state examinations.

Income (loss) per Common and Equivalent Shares

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 per share is as follows (dollars in thousands):

​

​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Years ended December 31,
​ |  | 2021 |  | 2020
Net income (loss) | ​ | $ | 32,259 | ​ | $ | (5,208)
​ | ​ | ​ | ​ | ​ | ​ | ​
Weighted average number of shares – basic | ​ |  | 43,765,443 | ​ |  | 42,710,381
Shares underlying options | ​ |  | 2,875,379 | ​ |  | —
Weighted average number of shares outstanding – diluted | ​ |  | 46,640,822 | ​ |  | 42,710,381

​

During the years ended December 31, 2021 and 2020, certain options aggregating 2,583,523 and 5,329,515 shares, respectively, have been excluded from the calculation of diluted shares, due to the fact that their effect would be anti-dilutive.

Estimates and Risks

The preparation of financial statements in conformity with generally accepted accounting principles in the United States requires the use of estimates and assumptions that affect the amounts reported in these financial statements and footnotes. The Company considers these accounting estimates to be critical in the preparation of the accompanying consolidated financial statements. The Company uses information available at the time the estimates are made. However, these estimates could change materially if different information or assumptions were used including potential impact of COVID-19 uncertainties. Additionally, these estimates may not ultimately reflect the actual amounts of the final transactions that occur. 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.

46

Table of Contents

Several of the Company’s accounting policies involve significant judgments, uncertainties and estimates. 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, goodwill and valuation allowance for the deferred tax assets relating to its NOLs and commitments and contingencies. With respect to trade 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, and changes in the regulations affecting its business could affect its operating results. Currently the Company purchases virgin hydrochlorofluorocarbon (“HCFC”) and hydrofluorocarbon (“HFC”) refrigerants and reclaimable, primarily HCFC, HFC and chlorofluorocarbon (“CFC”), refrigerants from suppliers and its customers. 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 sold by the Company, the Company could realize reductions in revenue from refrigerant sales, which could have a material adverse effect on its operating results and its financial position. The process of sourcing refrigerants includes various procurement costs, such as freight, processing, insurance, and other costs, relating to the delivery of refrigerants. As a result of the recently noted global supply chain issues, the Company determined it could be exposed to incremental costs related to these refrigerant purchases. These costs represent the Company’s initial estimate that are possibly subject to finalization in future periods and are recorded in accrued expenses and other current liabilities on the consolidated balance sheet as of December 31, 2021.

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 could have a material adverse effect on its operating results and its financial position.

Impairment of Long-lived Assets

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.

Recent Accounting Pronouncements

In June 2016, the FASB issued ASU No. 2016-13, Measurement of Credit Losses on Financial Instruments, which revises guidance for the accounting for credit losses on financial instruments within its scope, and in November 2018, issued ASU No. 2018-19 and in April 2019, issued ASU No. 2019-04 and in May 2019, issued ASU No. 2019-05, and in November 2019, issued ASU No. 2019-11, which each amended the standard. The new standard introduces an approach, based on expected losses, to estimate credit losses on certain types of financial instruments and modifies the impairment model for available-for-sale debt securities. The new approach to estimating credit losses (referred to as the current expected credit losses model) applies to most financial assets measured at amortized cost and certain other instruments, including trade and other receivables, loans, held-to-maturity debt securities, net investments in leases and off-balance-sheet credit exposures. This ASU is effective for fiscal years beginning after December 15, 2022, including interim periods within those fiscal years, with early adoption permitted. Entities are required to apply the standard's provisions as a cumulative-effect adjustment to retained earnings as of the beginning of the first reporting period in which the guidance is adopted. The Company is still evaluating the impact of this ASU.

In March 2020, the FASB issued ASU 2020-04, which provides relief from accounting analysis and impacts that may otherwise be required for modifications to agreements necessitated by reference rate reform. It also provides optional expedients to enable the continuance of hedge accounting where certain hedging relationships are impacted by reference rate reform. This optional guidance is

47

Table of Contents

effective immediately, and available to be used through December 31, 2022. We are assessing the impact that reference rate reform and the related adoption of this guidance will have on our financial statements.

In August 2020, the FASB issued ASU 2020-06, "Debt-Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging-Contracts in Entity's Own Equity (Subtopic 815-40): Accounting for Convertible Instruments and Contracts in an Entity's Own Equity", which is intended to simplify the accounting for convertible instruments by removing certain separation models in Subtopic 470-20, Debt-Debt with Conversion and Other Options, for convertible instruments. The pronouncement is effective for fiscal years, and for interim periods within those fiscal years, beginning after December 15, 2021, with early adoption permitted. ASU 2020-06 is not expected to have a material impact on our financial statements.

​

Note 2- Fair Value

ASC Subtopic 820-10 defines fair value as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. The Company often utilizes certain assumptions that market participants would use in pricing the asset or liability, including assumptions about risk and/or the risks inherent in the inputs to the valuation technique. These inputs can be readily observable, market-corroborated, or generally unobservable inputs. The Company utilizes valuation techniques that maximize the use of observable inputs and minimize the use of unobservable inputs. Based upon observable inputs used in the valuation techniques, the Company is required to provide information according to the fair value hierarchy.

The fair value hierarchy ranks the quality and reliability of the information used to determine fair values into three broad levels as follows:

Level 1: Valuations for assets and liabilities traded in active markets from readily available pricing sources for market transactions involving identical assets or liabilities.

Level 2: Valuations for assets and liabilities traded in less active dealer or broker markets. Valuations are obtained from third-party pricing services for identical or similar assets or liabilities.

Level 3: Valuations for assets and liabilities include certain unobservable inputs in the assumptions and projections used in determining the fair value assigned to such assets or liabilities.

In instances where the determination of the fair value measurement is based on inputs from different levels of the fair value hierarchy, the level in the fair value hierarchy within which the entire fair value measurement falls is based on the lowest level input that is significant to the fair value measurement in its entirety. The Company’s assessment of the significance of a particular input to the fair value measurement in its entirety requires judgment and considers factors specific to the asset or liability.

Note 3 - Trade accounts receivable – net

At December 31, 2021 and 2020, trade accounts receivable are net of reserves for doubtful accounts of $1.6 million. The following table represents the activity occurring in the reserves for doubtful accounts in 2021 and 2020.

​

​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Beginning | ​ | Net additions | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Balance | ​ | charged to | ​ | Deductions | ​ | Ending Balance
(in thousands) |  | at January 1 |  | Operations |  | and Other |  | at December 31
2021 | ​ | $ | 1,597 | ​ | $ | 44 | ​ | $ | (57) | ​ | $ | 1,584
2020 | ​ | $ | 710 | ​ | $ | 880 | ​ | $ | 7 | ​ | $ | 1,597

​

​

48

Table of Contents

Note 4- Inventories

Inventories consist of the following:

​

​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31, | ​ | December 31,
​ |  | 2021 |  | 2020
(in thousands) | ​ | ​ | ​ | ​ | ​ | ​
Refrigerants and cylinders | ​ | $ | 99,828 | ​ | $ | 53,593
Less: net realizable value adjustments | ​ |  | (5,684) | ​ |  | (9,133)
Total | ​ | $ | 94,144 | ​ | $ | 44,460

​

​

Note 5 - Property, plant and equipment

Elements of property, plant and equipment are as follows:

​

​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ |  | Estimated
December 31, |  | 2021 |  | 2020 | ​ | Lives
(in thousands) | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Property, plant and equipment |  | ​ |  |  | ​ |  |  |
- Land | ​ | $ | 1,255 | ​ | $ | 1,255 |  |
- Land improvements | ​ |  | 319 | ​ |  | 319 |  | 6-10 years
- Buildings | ​ |  | 1,446 | ​ |  | 1,446 |  | 25-39 years
- Building improvements | ​ |  | 3,099 | ​ |  | 3,072 |  | 25-39 years
- Cylinders | ​ |  | 13,272 | ​ |  | 13,624 |  | 15-30 years
- Equipment | ​ |  | 26,653 | ​ |  | 25,138 |  | 3-10 years
- Equipment under capital lease | ​ |  | 315 | ​ |  | 315 |  | 5-7 years
- Vehicles | ​ |  | 1,773 | ​ |  | 1,537 |  | 3-5 years
- Lab and computer equipment, software | ​ |  | 3,103 | ​ |  | 3,103 |  | 2-8 years
- Furniture & fixtures | ​ |  | 837 | ​ |  | 679 |  | 5-10 years
- Leasehold improvements | ​ |  | 852 | ​ |  | 852 |  | 3-5 years
- Equipment under construction | ​ |  | 930 | ​ |  | 944 |  |
Subtotal | ​ |  | 53,854 | ​ |  | 52,284 |  |
Accumulated depreciation | ​ |  | 33,761 | ​ |  | 30,374 |  |
Total | ​ | $ | 20,093 | ​ | $ | 21,910 |  |

​

Depreciation expense for the years ended December 31, 2021 and 2020 was $3.4 million and $3.2 million, respectively, of which $1.9 million and $1.7 million, respectively, were included as cost of sales in the Company’s Consolidated Statements of Operations.

Note 6 - Leases

The Company has various lease agreements with terms up to 11 years, including leases of buildings and various equipment. Some leases include options to purchase, terminate or extend for one or more years. These options are included in the lease term when it is reasonably certain that the option will be exercised.

At inception, the Company determines if an arrangement contains a lease and whether that lease meets the classification criteria of a finance or operating lease. Some of the Company’s lease arrangements contain lease components (e.g. minimum rent payments) and non-lease components (e.g. common area maintenance, charges, utilities and property taxes). The Company elected the package of practical expedients permitted under the transition guidance, which allows it to carry forward its historical lease classification, its assessment on whether a contract contains a lease, and its initial direct costs for any leases that existed prior to the adoption of the new standard. The Company also elected to combine lease and non-lease components and to keep leases with an initial term of 12 months or less off the balance sheet and recognize the associated lease payments in the consolidated statements of operations on a straight line basis over the lease term. The Company’s lease agreements do not contain any material residual value, guarantees or material restrictive covenants.

49

Table of Contents

Operating leases are included in Right of use asset, Accrued expenses and other current liabilities, and Long-term lease liabilities on the consolidated balance sheets. These assets and liabilities are recognized at the commencement date based on the present value of remaining lease payments over the lease term using the Company’s secured incremental borrowing rates or implicit rates, when readily determinable. Short-term operating leases, which have an initial term of 12 months or less, are not recorded on the balance sheet. Lease expense for operating leases is recognized on a straight-line basis over the lease term. Variable lease expense is recognized in the period in which the obligation for those payments is incurred.

Operating lease expense of $3.1 million and $3.0 million, for the years ended December 31, 2021 and 2020, respectively, is included in Selling, general and administrative expenses on the consolidated statements of operations.

The following table presents information about the amount, timing and uncertainty of cash flows arising from the Company’s operating leases as of December 31, 2021.

​ | ​ | ​ | ​
Maturity of Lease Payments |  | December 31, 2021
(in thousands) | ​ | ​ | ​
-2022 |  | ​ | 2,371
-2023 |  | ​ | 1,642
-2024 |  | ​ | 1,605
-2025 | ​ | ​ | 903
-Thereafter |  | ​ | 2,711
Total undiscounted operating lease payments |  | ​ | 9,232
Less imputed interest |  | ​ | (2,350)
Present value of operating lease liabilities | ​ | $ | 6,882

​

Balance Sheet Classification

​

​ | ​ | ​ | ​ | ​ | ​ | ​
December 31, |  | 2021 | ​ | 2020
Current lease liabilities (recorded in Accrued expenses and other current liabilities) | ​ | $ | 1,382 | ​ | $ | 2,703
Long-term lease liabilities | ​ | ​ | 5,500 | ​ |  | 3,927
Total operating lease liabilities | ​ | $ | 6,882 | ​ | $ | 6,630

​

Other Information

​

​ | ​ | ​ | ​ | ​ | ​
December 31, |  | 2021 |  | 2020 | ​
Weighted-average remaining term for operating leases |  | 4.08 | years | 4.86 | years
Weighted-average discount rate for operating leases |  | 8.22 | % | 8.78 | %

​

Cash Flows

Cash paid for amounts included in the present value of operating lease liabilities for the years ended December 31, 2021 and 2020 was $3.1 million and $3.0 million and is included in operating cash flows.

​

​

Note 7 - Income taxes

Income (loss) before income taxes for the years ended December 31, 2021 and 2020 was $33.4 million and ($5.4) million, respectively. Income tax expense (benefit) for the years ended December 31, 2021 and 2020 was $1.1 million and ($0.2) million, respectively. The income tax expense for each of the years ended December 31, 2021 and 2020 was for federal and state income tax at statutory rates applied to the adjusted pre-tax income for each of the periods.

50

Table of Contents

The following summarizes the (benefit) / provision for income taxes:

​

​ | ​ | ​ | ​ | ​ | ​ | ​
Years Ended December 31, |  | 2021 |  | 2020
(in thousands) | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
Current: |  | ​ |  |  | ​ |
Federal | ​ | $ | 453 | ​ | $ | (428)
State and local | ​ |  | 350 | ​ |  | 80
​ | ​ |  | 803 | ​ |  | (348)
Deferred: | ​ |  | ​ | ​ |  | ​
Federal | ​ |  | 267 | ​ |  | 80
State and local | ​ |  | 70 | ​ |  | 83
​ | ​ |  | 337 | ​ |  | 163
Expense (benefit) for income taxes | ​ | $ | 1,140 | ​ | $ | (185)

​

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

​

​ | ​ | ​ | ​ | ​ | ​
Years ended December 31, |  | 2021 |  | 2020 |
Income tax rates | ​ | ​ | ​ | ​ | ​
- Statutory U.S. federal rate |  | 21 | % | 21 | %
- State income taxes, net of federal benefit |  | 0 | % | 0 | %
- Excess tax benefits related to stock compensation |  | (4) | % | 0 | %
- AMT credit and NOL Carryback | ​ | 0 | % | 8 | %
- PPP Benefit | ​ | (2) | % | — | ​
- Lobbying |  | 0 | % | (1) | %
- Meals & Entertainment | ​ | 0 | % | (1) | %
- Officer’s Life Insurance | ​ | 0 | % | 4 | %
- Change in valuation allowance |  | (12) | % | (28) | %
​ | ​ | ​ | ​ | ​ | ​
Total |  | 3 | % | 3 | %

​

As of December 31, 2021, the Company had NOLs of approximately $29.3 million, none of have expiration dates and all of which are subject to annual limitations of 80% of tax earnings. As of December 31, 2021, the Company had state tax NOLs of approximately $21.0 million expiring in various years.

Deferred income tax represents the tax effect of the differences between the book and tax bases of assets and liabilities. The net deferred income tax assets (liabilities) consisted of the following at:

​

​ | ​ | ​ | ​ | ​ | ​ | ​
December 31, |  | 2021 |  | 2020
(in thousands) | ​ | ​ | ​ | ​ | ​ | ​
- Depreciation & amortization | ​ | $ | (6,365) | ​ | $ | (7,424)
- Reserves for doubtful accounts | ​ |  | 398 | ​ |  | 324
- Inventory reserve | ​ |  | 977 | ​ |  | 1,408
- Non qualified stock options | ​ |  | 612 | ​ |  | 1,219
- Net operating losses | ​ |  | 7,270 | ​ |  | 11,963
- AMT credit | ​ |  | — | ​ |  | —
- Deferred interest | ​ |  | 10,381 | ​ |  | 10,114
- Deferred bonus | ​ | ​ | — | ​ | ​ | 74
- Accrued Expenses | ​ | ​ | 184 | ​ | ​ | —
- Valuation allowance | ​ |  | (15,149) | ​ |  | (19,033)
Total | ​ |  | (1,692) | ​ |  | (1,355)

​

We review the likelihood that we will realize the benefit of our deferred tax assets, and therefore the need for valuation allowances, on an annual basis in the fourth quarter of the year, and more frequently if events indicate that a review is required. In determining the

51

Table of Contents

requirement for a valuation allowance, the historical and projected financial results are considered, along with all other available positive and negative evidence.

Concluding that a valuation allowance is not required is difficult when there is significant negative evidence that is objective and verifiable, such as cumulative losses in recent years. We utilize a rolling twelve quarters of pre-tax income or loss adjusted for significant permanent book to tax differences, as well as non-recurring items, as a measure of our cumulative results in recent years. Based on our assessment as of December 31, 2018, 2019, 2020 and 2021, we concluded that due to the uncertainty that the deferred tax assets will not be fully realized in the future, we recorded a valuation allowance of approximately $11.3 million during 2018, and due to additional losses, increased the valuation allowance through 2019 and 2020 to $19.0 million. For the year ended December 31, 2021, and due to additional income that resulted in the utilization of net operating losses of $16.8 million, we reduced the valuation allowance by $3.9 million resulting in an ending balance of $15.1 million as of December 31, 2021.

The Company’s 2015 and prior federal tax years have been closed. The Company operates in many states throughout the United States and, as of December 31, 2021, the state statutes of limitations remain open for tax years subsequent to 2016. The Company recognizes interest and penalties, if any, relating to income taxes as a component of the provision for income taxes

​

Note 8 – Goodwill and intangible assets

Goodwill represents the excess of the purchase price over the fair value of the net assets acquired in business combinations accounted for under the purchase method of accounting.

There were no goodwill impairment losses recognized for the years ended December 31, 2021 and 2020.

Based on the results of the impairment assessments of goodwill and intangible assets performed, management concluded that the fair value of the Company’s goodwill exceeds the carrying value and that there are no impairment indicators related to intangible assets.

At December 31, 2021 and December 31, 2020 the Company had $47.8 million of goodwill.

The Company’s other intangible assets consist of the following:

​

​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | 2021 | ​ | 2020
​ | ​ | Amortization | ​ | Gross | ​ | ​ | ​ | ​ | ​ | ​ | ​ | Gross | ​ | ​ | ​ | ​ | ​ | ​
December 31, | ​ | Period | ​ | Carrying | ​ | Accumulated | ​ | ​ | ​ | ​ | Carrying | ​ | Accumulated | ​ | ​ | ​
(in thousands) |  | (in years) |  | Amount |  | Amortization |  | Net |  | Amount |  | Amortization |  | Net
Intangible assets with determinable lives |  |  | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Covenant not to compete |  | 6 – 10 | ​ | $ | 1,270 | ​ | $ | 1,023 | ​ |  | 247 | ​ | $ | 1,270 | ​ | $ | 937 | ​ | $ | 333
Customer relationships |  | 3 – 12 | ​ |  | 31,560 | ​ |  | 11,829 | ​ |  | 19,731 | ​ |  | 31,560 | ​ |  | 9,167 | ​ |  | 22,393
Above market leases |  | 13 | ​ |  | 567 | ​ |  | 188 | ​ |  | 379 | ​ |  | 567 | ​ |  | 143 | ​ |  | 424
Total identifiable intangible assets | ​ | ​ | ​ | $ | 33,397 | ​ | $ | 13,040 | ​ | $ | 20,357 | ​ | $ | 33,397 | ​ | $ | 10,247 | ​ | $ | 23,150

​

The amortization of intangible assets for the years ended December 31, 2021 and 2020, were $2.8 million and $2.9 million respectively. Future estimated amortization expense is as follows: 2022 - $2.8 million, 2023 - $2.8 million, 2024- $2.8 million, 2025- $2.5 million, 2026-$2.5 million and thereafter - $7.0 million.

Note 9 – Accrued expenses and other current liabilities

Elements of Accrued expenses and other current liabilities are as follows:

​

​ | ​ | ​ | ​ | ​ | ​ | ​
December 31 , |  | 2021 |  | 2020
(in thousands) |  | ​ |  |  | ​ |
Accrued expenses | ​ | $ | 13,986 | ​ | $ | 5,329
Cylinder deposits | ​ |  | 12,307 | ​ |  | 11,338
Lease obligations | ​ |  | 1,378 | ​ |  | 2,702
Other current liabilities | ​ |  | 2,966 | ​ |  | 48
Total | ​ | $ | 30,637 | ​ | $ | 19,417

​

​

52

Table of Contents

Note 10 - Short-term and long-term debt

Elements of short-term and long-term debt are as follows:

​

​ | ​ | ​ | ​ | ​ | ​ | ​
December 31, |  | 2021 |  | 2020
(in thousands) | ​ | ​ | ​ | ​ | ​ | ​
Short-term & long-term debt |  | ​ |  |  | ​ |
Short-term debt: |  | ​ |  |  | ​ |
- Revolving credit line and other debt | ​ | $ | 15,000 | ​ | $ | 2,000
- Loan from Paycheck Protection Program- current | ​ | ​ | — | ​ | ​ | 2,062
- Capital lease obligation- current | ​ | ​ | — | ​ | ​ | 4
- Term loan facility - current | ​ | ​ | 5,248 | ​ | ​ | 5,248
Subtotal | ​ |  | 20,248 | ​ |  | 9,314
Long-term debt: | ​ |  | ​ | ​ |  | ​
- Term loan facility- net of current portion of long-term debt | ​ |  | 74,618 | ​ |  | 79,867
- Loan from Paycheck Protection Program- net of current portion | ​ |  | — | ​ |  | 413
- Less: deferred financing costs on term loan | ​ |  | (1,473) | ​ |  | (2,304)
Subtotal | ​ |  | 73,145 | ​ |  | 77,976
​ | ​ | ​ | ​ | ​ | ​ | ​
Total short-term & long-term debt | ​ | $ | 93,393 | ​ | $ | 87,290

​

Revolving Credit Facility

On December 19, 2019, Hudson Technologies Company (“HTC”), Hudson Holdings, Inc. (“Holdings”) and Aspen Refrigerants, Inc. (“ARI”), as borrowers (collectively, the “Borrowers”), and Hudson Technologies, Inc. (the “Company”) as a guarantor, became obligated under a Credit Agreement (the “Wells Fargo Facility”) with Wells Fargo Bank, as administrative agent and lender (“Agent” or “Wells Fargo”) and such other lenders as may thereafter become a party to the Wells Fargo Facility. The Wells Fargo Facility was amended and restated on March 2, 2022 (see Note 14).

Under the terms of the Wells Fargo Facility, the Borrowers could borrow, from time to time, up to $60 million at any time consisting of revolving loans in a maximum amount up to the lesser of $60 million and a borrowing base that was calculated based on the outstanding amount of the Borrowers’ eligible receivables and eligible inventory, as described in the Wells Fargo Facility. The Wells Fargo Facility also contained a sublimit of $5 million for swing line loans and $2 million for letters of credit.

Amounts borrowed under the Wells Fargo Facility were used by the Borrowers to repay existing revolving indebtedness under its prior revolving credit facility, repay certain principal amounts under the Term Loan Facility (as defined below), and for working capital needs, certain permitted acquisitions, and to reimburse drawings under letters of credit.

Interest on loans under the Wells Fargo Facility was payable in arrears on the first day of each month. Interest charges with respect to loans were computed on the actual principal amount of loans outstanding during the month at a rate per annum equal to (A) with respect to Base Rate loans, the sum of (i) a rate per annum equal to the higher of (1) the federal funds rate plus 0.5%, (2) one month LIBOR plus 1.0%, and (3) the prime commercial lending rate of Wells Fargo, plus (ii) between 1.25% and 1.75% depending on average monthly undrawn availability and (B) with respect to LIBOR rate loans, the sum of the LIBOR rate plus between 2.25% and 2.75% depending on average monthly undrawn availability.

In connection with the closing of the Wells Fargo Facility, the Company also entered into a Guaranty and Security Agreement, dated as of December 19, 2019 (the “Revolver Guaranty and Security Agreement”), pursuant to which the Company and certain subsidiaries unconditionally guaranteed the payment and performance of all obligations owing by Borrowers to Wells Fargo, as Agent for the benefit of the revolving lenders. Pursuant to the Revolver Guaranty and Security Agreement, Borrowers, the Company and certain other subsidiaries granted to the Agent, for the benefit of the Wells Fargo Facility lenders, a security interest in substantially all of their respective assets, including receivables, equipment, general intangibles (including intellectual property), inventory, subsidiary stock, real property, and certain other assets.

53

Table of Contents

The Revolver Guaranty and Security Agreement also provided that the Agent shall receive the right to dominion over certain of the Borrowers’ bank accounts in the event of an Event of Default under the Wells Fargo Facility, or if undrawn availability under the Wells Fargo Facility falls below $9 million at any time.

The Wells Fargo Facility contained a financial covenant requiring the Company to maintain at all times minimum liquidity (defined as availability under the Wells Fargo Facility plus unrestricted cash) of at least $5 million, of which at least $3 million must be derived from availability. The Wells Fargo Facility also contained a springing covenant, which took effect only upon a failure to maintain undrawn availability of at least $7.5 million, requiring the Company to maintain a Fixed Charge Coverage Ratio (FCCR) of not less than 1.00 to 1.00, as of the end of each trailing period of twelve consecutive fiscal months commencing with the month prior to the triggering of the covenant. The FCCR (as defined in the Wells Fargo Facility) is the ratio of (a) EBITDA for such period, minus unfinanced capital expenditures made during such period, to (b) the aggregate amount of (i) interest expense required to be paid (other than interest paid-in-kind, amortization of financing fees, and other non-cash interest expense) during such period, (ii) scheduled principal payments (but excluding principal payments relating to outstanding revolving loans under the Wells Fargo Facility), (iii) all net federal, state, and local income taxes required to be paid during such period (provided, that any tax refunds received shall be applied to the period in which the cash outlay for such taxes was made), (iv) all restricted payments paid (as defined in the Wells Fargo Facility) during such period, and (v) to the extent not otherwise deducted from EBITDA for such period, all payments required to be made during such period in respect of any funding deficiency or funding shortfall with respect to any pension plan. The FCCR covenant ceases after the Borrowers have been in compliance therewith for two consecutive months.

The Wells Fargo Facility also contained customary non-financial covenants relating to the Company and the Borrowers, including limitations on Borrowers’ ability to pay dividends on common stock or preferred stock, and also includes certain events of default, including payment defaults, breaches of representations and warranties, covenant defaults, cross-defaults to other obligations, events of bankruptcy and insolvency, certain ERISA events, judgments in excess of specified amounts, impairments to guarantees and a change of control. The Wells Fargo Facility also contained certain covenants contained in the Fourth Amendment to the Prior Term Loan Facility described below.

On April 23, 2020, the Borrowers, the Company and its subsidiaries entered into a First Amendment to Credit Agreement with Wells Fargo (the "First Amendment"). The First Amendment authorized the Company and its subsidiaries to incur up to $2.5 million of indebtedness under the Coronavirus Aid, Relief, and Economic Security Act (the "CARES Act") and contained other provisions relating to the treatment of such proceeds and any potential debt forgiveness, under the Wells Fargo Facility.

The commitments under the Wells Fargo Facility were to expire and the full outstanding principal amount of the loans, together with accrued and unpaid interest, would have been due and payable in full on December 19, 2022, unless the commitments are terminated and the outstanding principal amount of the loans were accelerated sooner following an event of default.

Prior Term Loan Facility

On October 10, 2017, HTC, Holdings, and ARI, as borrowers, and the Company, as guarantor, became obligated under a Term Loan Credit and Security Agreement (as amended, the “Prior Term Loan Facility”) with U.S. Bank National Association, as administrative agent and collateral agent (“Prior Term Loan Agent”) and funds advised by FS Investments and such other lenders as may thereafter become a party to the Term Loan Facility (the “Prior Term Loan Lenders”). The Prior Term Loan Facility was repaid in full and terminated on March 2, 2022 (see Note 14).

Under the terms of the Prior Term Loan Facility, the Borrowers immediately borrowed $105 million pursuant to a term loan (the “Prior Term Loan").

The Prior Term Loan was to mature on October 10, 2023. Interest on the Prior Term Loan was generally payable on the earlier of the last day of the interest period applicable to such Eurodollar rate loan and the last day of the Term Loan Facility, as applicable. Interest is payable at the rate per annum of the Eurodollar Rate (as defined in the Term Loan Facility) plus 10.25%. The Borrowers had the option of paying 3.00% interest per annum in kind by adding such amount to the principal of the Prior Term Loans during no more than five fiscal quarters during the term of the Prior Term Loan Facility.

Borrowers and the Company granted to the Prior Term Loan Agent, for the benefit of the Prior Term Loan Lenders, a security interest in substantially all of their respective assets, including receivables, equipment, general intangibles (including intellectual property), inventory, subsidiary stock, real property, and certain other assets.

54

Table of Contents

The Term Loan Facility contained a financial covenant requiring the Company to maintain a specified total leverage ratio (“TLR”), tested as of the last day of the fiscal quarter. The TLR (as defined in the Term Loan Facility) is the ratio of (a) funded debt as of such day to (b) EBITDA for the four consecutive fiscal quarters ending on the last day of such fiscal quarter. Funded debt (as defined in the Prior Term Loan Facility) includes amounts borrowed under the Wells Fargo Facility and the Prior Term Loan Facility as well as capitalized lease obligations and other indebtedness for borrowed money maturing more than one year from the date of creation thereof. As of December 31, 2021 and 2020, the TLR was approximately 1.93 to 1 and 5.84 to 1, respectively.

The Prior Term Loan Facility also contained customary non-financial covenants relating to the Company and the Borrowers, including limitations on their ability to pay dividends on common stock or preferred stock, and also included certain events of default, including payment defaults, breaches of representations and warranties, covenant defaults, cross-defaults to other obligations, events of bankruptcy and insolvency, certain ERISA events, judgments in excess of specified amounts, impairments to guarantees and a change of control.

In connection with the closing of the Prior Term Loan Facility, the Company also entered into a Guaranty and Suretyship Agreement, dated as of October 10, 2017 (the “Prior Term Loan Guarantee”), pursuant to which the Company affirmed its unconditional guarantee of the payment and performance of all obligations owing by Borrowers to Prior Term Loan Agent, as agent for the benefit of the Prior Term Loan Lenders.

The Prior Term Loan Agent and the Agent have entered into an intercreditor agreement governing the relative priority of their security interests granted by the Borrowers and the Guarantor in the collateral, providing that the Agent would have a first priority security interest in the accounts receivable, inventory, deposit accounts and certain other assets (the “Revolving Credit Priority Collateral”) and the Prior Term Loan Agent would have a first priority security interest in the equipment, real property, capital stock of subsidiaries and certain other assets (the “Prior Term Loan Priority Collateral”).

On December 19, 2019, HTC, Holdings and ARI as borrowers and the Company as a guarantor, entered into a Waiver and Fourth Amendment to Term Loan Credit and Security Agreement (the “Fourth Amendment”) with U.S. Bank National Association, as collateral agent and administrative agent, and the various lenders thereunder.

The Fourth Amendment waived financial covenant defaults at June 30, 2019 and September 30, 2019 and amended the Term Loan Credit and Security Agreement dated October 10, 2017 (as previously amended, the “Term Loan Facility”) to reset the maximum Total Leverage Ratio covenant contained in the Prior Term Loan Facility at the indicated dates as follows: (i) September 30, 2019 - 15.67:1.00; (ii) December 31, 2019 – 14.54:1.00; (iii) March 31, 2020 – 16.57:1.00; (iv) June 30, 2020 – 10.87:1.00; (v) September 30, 2020 – 8.89:1.00; (vi) December 31, 2020 – 8.89:1.00; (vii) March 31, 2021 – 7.75:1.00; (viii) June 30, 2021 – 7.03:1.00; (ix) September 30, 2021 – 6.08:1.00; and (x) December 31, 2021 – 5.36:1.00. The Fourth Amendment also reset the minimum liquidity requirement (consisting of cash plus undrawn availability on the Borrowers’ revolving loan facility) of $5 million, measured monthly. Furthermore, the Fourth Amendment added a minimum LTM Adjusted EBITDA covenant as of the indicated dates as follows: (i) September 30, 2019 - $7.887 million; (ii) December 31, 2019 – $7.954 million; (iii) March 31, 2020 – $7.359 million; (iv) June 30, 2020 – $11.745 million; (v) September 30, 2020 – $12.021 million; (vi) December 31, 2020 – $12.300 million; (vii) March 31, 2021 –$14.295 million; (viii) June 30, 2021 – $14.566 million; (ix) September 30, 2021 – $15.431 million; and (x) December 31, 2021 – $16.267 million.

The Fourth Amendment also (i) continued the limitation on acquisitions and dividends, (ii) required a principal repayment of $14,000,000 upon execution of the Fourth Amendment and (iii) increased the scheduled quarterly principal repayments to $562,000 effective March 31, 2020 and $1,312,000 effective December 31, 2020.

The Fourth Amendment also terminated the exit fee payable to the term loan lenders, which would have been payable in full in cash upon the earlier to occur of (x) repayment in full of the term loans, or (y) any acceleration of the term loans. In lieu of the exit fee, the Fourth Amendment reinstated a prepayment premium equal to the following percentages of the principal amount prepaid, depending upon the date of prepayment: (i) through March 31, 2020 – 0.50%; (ii) from April 1, 2020 through March 31, 2021 – 2.50%; and (iii) from April 1, 2021 and thereafter – 5.00%.

The Fourth Amendment also added a new covenant providing that in the event of a breach of a financial covenant contained in the Term Loan Facility or any failure to make a required principal repayment (a “Trigger Event”), then on or prior to six months after a Trigger Event, the Company shall commence a process to (x) sell its businesses and/or assets, and/or (y) consummate a refinancing transaction with respect to the Term Loan Facility (a “Transaction”), in each case, subject to enumerated time milestones contained in the Fourth Amendment, and which requires that Transaction shall, in any event, be consummated on or prior to the eighteen (18) month anniversary of the Trigger Event.

55

Table of Contents

As closing conditions to the execution and delivery of the Fourth Amendment, the Company was required to: (i) amend its Bylaws in a manner acceptable to the Term Loan Facility lenders; (ii) appoint two new independent directors to the board of directors (the “Special Directors”); and (iii) pay an amendment fee of 0.50% of the amount of the outstanding loans under the Term Loan Facility.

On April 23, 2020, HTC, Holdings and ARI as borrowers and the Company as a guarantor, entered into a Fifth Amendment to Term Loan Credit and Security Agreement (the "Fifth Amendment") with U.S. Bank National Association, as collateral agent and administrative agent, and the various lenders thereunder. The Fifth Amendment authorized the Company and its subsidiaries to incur up to $2.5 million of indebtedness under the CARES Act and contained other provisions relating to the treatment of such proceeds and any potential debt forgiveness, under the Prior Term Loan Facility.

The Company evaluated the Fourth and Fifth Amendments in accordance with the provisions of Accounting Standards Codification (“ASC”) 470, Debt, to determine if the Amendments were (1) a troubled debt restructuring, and if not, (2) a modification or an extinguishment of debt. The Company concluded that the Fourth Amendment was a troubled debt restructuring for accounting purposes due to the removal of the exit fee; as such, the Company capitalized an additional $0.5 million of deferred financing costs, which are being amortized over the remaining term. The future undiscounted cash flows of the term loan, as amended, exceeded the carrying value, and accordingly, no gain was recognized and no adjustment was made to the carrying value of the debt.

The Company was in compliance with all covenants, under the Prior Wells Fargo Facility and the Term Loan Facility, as amended, as of December 31, 2021.

The Company's ability to comply with these covenants in future quarters may be affected by events beyond the Company's control, including general economic conditions, weather conditions, regulations and refrigerant pricing. Therefore, we cannot make any assurance that we will continue to be in compliance during future periods.

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 Wells Fargo 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(R) Services and/or refrigerant sales or additional expansion or acquisition costs that may arise in the future would adversely affect the Company's future capital needs. There can be no assurance 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 on acceptable terms, or at all.

CARES Act Loan

On April 23, 2020 the Company received a loan in the amount of $2.475 million from Meridian Bank under the Paycheck Protection Program ("PPP") pursuant to the CARES Act. The loan had a term of two years, was unsecured, and bore interest at a fixed rate of one percent per annum, with the first nine months of principal and interest deferred. As a result of the COVID-19 pandemic, in applying for the loan the Company made a good faith assertion based upon the degree of uncertainty introduced to the capital markets and the industries affecting the Company's customers and the Company's dependency to curtail expenses to fund ongoing operations. The PPP loan proceeds have been used in part to help offset payroll costs as stipulated in the legislation. All or a portion of the PPP loan may be forgiven by the U.S. Small Business Administration ("SBA") upon application by the Company and upon documentation of expenditures in accordance with the SBA requirements. Under the CARES Act, loan forgiveness is available for the sum of documented payroll costs and other covered areas, such as rent payments, mortgage interest and utilities, as applicable. During the third quarter of 2021, the Company received forgiveness of the loan from the SBA, resulting in $2.475 million of Other Income recorded in the Company’s Consolidated Statements of Operations.

Vehicle and Equipment Loans

The Company has from time to time entered into various vehicle and equipment loans. These loans were payable in 60 monthly payments through July 2021 and bore interest ranging from 0.0% to 8.3%. All such loans have been repaid in full at December 31, 2021.

Capital Lease Obligations

The Company rents certain equipment with a de minimis net book value at December 31, 2021 under leases which have been classified as capital leases.

​

56

Table of Contents

Scheduled maturities of the Company’s long-term debt and capital lease obligations are as follows:

​

​ | ​ | ​ | ​
Years ended December 31, |  | Amount
(in thousands) | ​ | ​ | ​
‑2022 | ​ | $ | 5,248
‑2023 | ​ |  | 74,619
‑2024 | ​ |  | —
‑2025 | ​ |  | —
‑2026 | ​ | ​ | —
Thereafter | ​ |  | —
Total | ​ | $ | 79,867

​

​

Note 11 - Commitments and contingencies

Rents and operating leases

The Company utilizes leased facilities and operates equipment under non-cancelable operating leases through July 2030. Below is a table of key properties:

​

​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ | ​ |  | Lease
​ | ​ | Annual | ​ | Expiration
Location | ​ | Rent | ​ | Date
Auburn, Washington | ​ | $ | 36,000 |  | 4/2022
Baton Rouge, Louisiana | ​ | $ | 24,600 |  | Month to Month
Champaign, Illinois | ​ | $ | 654,000 |  | 12/2024
Champaign, Illinois (2nd location) | ​ | $ | 349,000 | ​ | 9/2026
Charlotte, North Carolina | ​ | $ | 31,000 |  | 5/2022
Escondido, California | ​ | $ | 219,000 |  | 6/2022
Hampstead, New Hampshire | ​ | $ | 33,000 |  | 8/2023
Long Beach, California | ​ | $ | 28,800 |  | 2/2024
Ontario, California | ​ | $ | 168,000 |  | 12/2024
Riverside, California | ​ | $ | 27,000 |  | Month to Month
Rantoul, Illinois | ​ | $ | 36,000 | ​ | Month to Month
Smyrna, Georgia | ​ | $ | 465,000 |  | 7/2030
Stony Point, New York | ​ | $ | 105,000 |  | 6/2022
Woodcliff Lake, New Jersey | ​ | $ | 158,000 | ​ | 8/2027

​

The Company rents properties and various equipment under operating leases. Operating lease expense for the years ended December 31, 2021 and 2020 totaled approximately $3.1 million and $3.0 million. In addition to the properties above, the Company does at times utilize public warehouse space on a month to month basis. The Company typically enters into short-term leases for the facilities and wherever possible extends the expiration date of such leases.

Note 12 - Share-Based Compensation

Share-based compensation represents the cost related to share-based awards, typically stock options or stock grants, granted to employees, non-employees, officers and directors. Share-based compensation is measured at grant date, based on the estimated aggregate fair value of the award on the grant date, and such amount is charged to compensation expense on a straight-line basis over the requisite service period. For the years ended December 31, 2021 and 2020, the share-based compensation expense of $0.5 million and $0.7 million, respectively, is reflected in General and administrative expenses in the consolidated Statements of Operations.

Share-based awards have historically been made as stock options, and recently also as stock grants, issued pursuant to the terms of the Company’s stock option and stock incentive plans, (collectively, the “Plans”), described below. The Plans may be administered by the Board of Directors or the Compensation Committee of the Board or by another committee appointed by the Board from among its members as provided in the Plans. Presently, the Plans are administered by the Company’s Compensation Committee of the Board of

57

Table of Contents

Directors. As of December 31, 2021 there were 5,069,255 shares of the Company’s common stock available under the Plans for issuance for future stock option grants or other stock based awards.

Stock option awards, which allow the recipient to purchase shares of the Company’s common stock at a fixed price, are typically granted at an exercise price equal to the Company’s stock price at the date of grant. Typically, the Company’s stock option awards have vested from immediately to two years from the grant date and have had a contractual term ranging from three to ten years.

ISOs granted under the Plans may not be granted at a price less than the fair market value of the common stock on the date of grant (or 110% of fair market value in the case of persons holding 10% or more of the voting stock of the Company). Nonqualified options granted under the Plans may not be granted at a price less than the fair market value of the common stock. Options granted under the Plans expire not more than ten years from the date of grant (five years in the case of ISOs granted to persons holding 10% or more of the voting stock of the Company).

Effective September 17, 2014, the Company adopted its 2014 Stock Incentive Plan (“2014 Plan”) pursuant to which 3,000,000 shares of common stock were reserved for issuance (i) upon the exercise of options, designated as either ISOs under the Code or nonqualified options, or (ii) as stock, deferred stock or other stock-based awards. ISOs may be granted under the 2014 Plan to employees and officers of the Company. Non-qualified options, stock, deferred stock or other stock-based awards may be granted to consultants, directors (whether or not they are employees), employees or officers of the Company. Stock appreciation rights may also be issued in tandem with stock options. Unless the 2014 Plan is sooner terminated, the ability to grant options or other awards under the 2014 Plan will expire on September 17, 2024.

Effective June 7, 2018, the Company adopted its 2018 Stock Incentive Plan (“2018 Plan”) pursuant to which 4,000,000 shares of common stock were reserved for issuance (i) upon the exercise of options, designated as either ISOs under the Code or nonqualified options, or (ii) as stock, deferred stock or other stock-based awards. ISOs may be granted under the 2018 Plan to employees and officers of the Company. Non-qualified options, stock, deferred stock or other stock-based awards may be granted to consultants, directors (whether or not they are employees), employees or officers of the Company. Stock appreciation rights may also be issued in tandem with stock options. Unless the 2018 Plan is sooner terminated, the ability to grant options or other awards under the 2018 Plan will expire on June 7, 2028.

Effective June 11, 2020, the Company adopted its 2020 Stock Incentive Plan ("2020 Plan") pursuant to which 3,000,000 shares of common stock were reserved for issuance (i) upon the exercise of options, designated as either ISOs under the Code or nonqualified options, or (ii) as stock, deferred stock or other stock-based awards. ISOs may be granted under the 2020 Plan to employees and officers of the Company. Non-qualified options, stock, deferred stock or other stock-based awards may be granted to consultants, directors (whether or not they are employees), employees or officers of the Company. Stock appreciation rights may also be issued in tandem with stock options. Unless the 2020 Plan is sooner terminated, the ability to grant options or other awards under the 2020 Plan will expire on June 11, 2030.

All stock options have been granted to employees and non-employees at exercise prices equal to or in excess of the market value on the date of the grant.

The Company determines the fair value of share based awards at the grant date by using the Black-Scholes option-pricing model, and has utilized the “simplified” method, as prescribed by the SEC’s Staff Accounting Bulletin (“SAB”) No.110, Share-Based Payment, to compute expected lives of share based awards with the following weighted-average assumptions:

​

​ | ​ | ​ | ​ | ​ | ​
Years ended |  | ​ |  | ​ | ​
December 31, | ​ | 2021 | ​ | 2020 | ​
Assumptions |  |  |  |  |
Dividend yield |  | 0 | % | 0 | %
Risk free interest rate |  | 0.29%-0.85 | % | 0.27%-0.29 | %
Expected volatility |  | 90%-101 | % | 101%-103 | %
Expected lives |  | 2.5-5 years |  | 2.75-5 years |

​

58

Table of Contents

A summary of the activity for the Company’s Plans for the indicated periods is presented below:

​

​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ |  | Weighted
​ | ​ | ​ | ​ | Average
Stock Options and Stock Appreciation Rights | ​ | Shares | ​ | Exercise Price
Outstanding at December 31, 2019 |  | 7,042,377 | ​ | $ | 1.01
-Cancelled |  | — | ​ | $ | —
-Exercised |  | (1,967,562) | ​ | $ | 0.91
-Granted |  | 254,700 | ​ | $ | 1.11
Outstanding at December 31, 2020 |  | 5,329,515 | ​ | $ | 1.06
-Cancelled |  | (133,257) | ​ | $ | 2.02
-Exercised |  | (3,076,489) | ​ | $ | 1.16
-Granted (1) |  | 484,254 | ​ | $ | 1.82
Outstanding at December 31, 2021 |  | 2,604,023 | ​ | $ | 1.03

​

(1) Options to purchase 463,754 shares were granted in 2021, all of which were vested immediately in 2021. In addition, 20,500 stock appreciation rights were granted in December 2021 with a six- month vesting period.

The following is the weighted average contractual life in years and the weighted average exercise price at December 31, 2021 and 2020 of:

​

​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ |  | Weighted |  | ​ | ​
​ | ​ | ​ | ​ | Average | ​ | ​ | ​
​ | ​ | ​ | ​ | Remaining | ​ | Weighted
​ | ​ | Number of | ​ | Contractual | ​ | Average
December 31, 2021 | ​ | Options | ​ | Life | ​ | Exercise Price
Options outstanding and vested |  | 2,583,523 |  | 5.85 | ​ | $ | 1.00

​

​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ |  | Weighted |  | ​ | ​
​ | ​ | ​ | ​ | Average | ​ | ​ | ​
​ | ​ | ​ | ​ | Remaining | ​ | Weighted
​ | ​ | Number of | ​ | Contractual | ​ | Average
December 31, 2020 | ​ | Options | ​ | Life | ​ | Exercise Price
Options outstanding |  | 5,329,515 |  | 3.55 | ​ | $ | 1.06
Options vested |  | 5,261,947 |  | 3.54 | ​ | $ | 1.05
Options unvested |  | 67,568 |  | 4.71 | ​ | $ | 1.23

​

The intrinsic values of options outstanding at December 31, 2021 and 2020 are $8.9 million and $0.7 million, respectively.

The intrinsic value of options unvested at December 31, 2021 and 2020 are both $0.0 million.

The intrinsic values of options vested and exercised during the years ended December 31, 2021 and 2020 were as follows:

​

​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | 2021 |  | 2020
Intrinsic value of options vested | ​ | $ | 1,481,858 | ​ | $ | 393,952
Intrinsic value of options exercised | ​ | $ | 7,088,578 | ​ | $ | 843,893

​

​

Note 13 - Other income

Other income for the year ended December 31, 2021 was $2.5 million, resulting from the forgiveness of the PPP Loan.

On June 23, 2020, Kevin J. Zugibe, Chairman of the Board and Chief Executive Officer of the Company, passed away unexpectedly. During the third quarter of 2020, the Company received $1 million of key man life insurance proceeds and accordingly recorded the amount as Other income in its Consolidated Statement of Operations.

​

59

Table of Contents

Note 14 – Related Party Transactions

Stephen P. Mandracchia served as Vice President – Legal and Regulatory and Secretary of the Company through May 3, 2019 and after that date served the Company in a consulting role through August 31, 2020. From May 6, 2019 through December 31, 2019, Mr. Mandracchia received a monthly consulting fee of $10,000 and such fee was increased to $12,000 per month effective January 1, 2020. Mr. Mandracchia is the brother-in-law of the deceased Kevin J. Zugibe, the Company’s former Chairman of the Board and Chief Executive Officer. Effective September 1, 2020, Mr. Mandracchia became a member of the Company's Board of Directors.

​

Note 15 – Subsequent Events

2022 Term Loan Facility

On March 2, 2022, Hudson Technologies Company (“HTC”), an indirect subsidiary of Hudson Technologies, Inc. (the “Company”), and the Company’s subsidiary Hudson Holdings, Inc., as borrowers (collectively, the “Borrowers”), and the Company, as guarantor, became obligated under a Credit Agreement (the “Term Loan Facility”) with TCW Asset Management Company LLC, as administrative agent (“Term Loan Agent”) and the lender parties thereto (the “Term Loan Lenders”).

Under the terms of the Term Loan Facility, the Borrowers have immediately borrowed $85 million pursuant to a term loan (the “Term Loan”). Amounts borrowed under the Term Loan Facility were used by the Borrowers to repay the outstanding principal amount and related fees and expenses under the Prior Term Loan Facility (as defined below) and for other corporate purposes.

The Term Loan matures on March 2, 2027, or earlier upon certain acceleration or cross default events. Principal payments on the Term Loan are required on a quarterly basis, commencing with the quarter ending March 31, 2022, in the amount of 5% of the original principal amount of the outstanding Term Loan per annum. The Term Loan Facility also requires annual payments of 50% of Excess Cash Flow (as defined in the Term Loan Facility); provided that commencing with the year ending December 31, 2023 such payments may be reduced depending upon the Company’s leverage ratio (as defined in the Term Loan Facility) for the applicable year. The Term Loan Facility also requires mandatory prepayments of the Term Loans in the event of certain asset dispositions, debt issuances, and other events. The Term Loan may be prepaid at the option of the Borrowers subject to a prepayment premium of 3% in year one, 2% in year two, 1% in year three, and zero in year four and thereafter.

Interest on the Term Loan is generally payable monthly, in arrears. Interest charges with respect to the Term Loan are computed on the actual principal amount of the Term Loan outstanding at a rate per annum equal to (A) with respect to Base Rate loans, the sum of (i) a rate per annum equal to the higher of (1) 2.0%, (2) the federal funds rate plus 0.5%, (3) one month term SOFR plus 1.0%, and (4) the prime commercial lending rate quoted by The Wall Street Journal, plus (ii) between 6.0% and 7.0% depending on the applicable leverage ratio and (B) with respect to SOFR loans, the sum of the applicable SOFR rate plus between 7.0% and 8.0% depending on the applicable leverage ratio.

Borrowers and the Company granted to the Term Loan Agent, for the benefit of the Term Loan Lenders, a security interest in substantially all of their respective assets, including receivables, equipment, general intangibles (including intellectual property), inventory, subsidiary stock, real property, and certain other assets.

The Term Loan Facility contains a fixed charge coverage ratio covenant and a leverage ratio covenant, each tested quarterly. The Term Loan Facility also contains customary non-financial covenants relating to the Company and the Borrowers, including limitations on Borrowers’ ability to pay dividends on common stock or preferred stock, and also includes certain events of default, including payment defaults, breaches of representations and warranties, covenant defaults, cross-defaults to other obligations, events of bankruptcy and insolvency, certain ERISA events, judgments in excess of specified amounts, impairments to guarantees and a change of control.

In connection with the closing of the Term Loan Facility, the Company also entered into a Guaranty and Security Agreement, dated as of March 2, 2022 (the “Term Loan Guarantee”), pursuant to which the Company affirmed its unconditional guarantee of the payment and performance of all obligations owing by Borrowers to Term Loan Agent, as agent for the benefit of the Term Loan Lenders.

The Term Loan Agent and the Agent (as defined below) have entered into an intercreditor agreement governing the relative priority of their security interests granted by the Borrowers and the Guarantor in the collateral, providing that the Agent shall have a first priority security interest in the accounts receivable, inventory, deposit accounts and certain other assets (the “Revolving Credit Priority Collateral”) and the Term Loan Agent shall have a first priority security interest in the equipment, real property, capital stock of subsidiaries and certain other assets (the “Term Loan Priority Collateral”).

60

Table of Contents

Termination of Prior Term Loan Facility

In conjunction with entry into the new Term Loan Facility as described above, on March 2, 2022 the Company's existing term loans set forth in the Term Loan Credit and Security Agreement with U.S. Bank National Association, as collateral agent and administrative agent, and the various lenders thereunder, as amended (the “Prior Term Loan Facility”), which had a principal balance of approximately $63.9 million after payment of a $16.0 million excess cash flow amount thereunder, was repaid in full, together with associated required lender fees and expenses of $3.3 million, and the Prior Term Loan Facility was terminated.

Revolving Credit Facility Amendment

On March 2, 2022, Hudson Technologies Company (“HTC”) and Hudson Holdings, Inc. (“Holdings”), as borrowers (collectively, the “Borrowers”), and Hudson Technologies, Inc (the “Company”) as a guarantor, entered into an Amended and Restated Credit Agreement (the “Amended Wells Fargo Facility”) with Wells Fargo Bank, National Association, as administrative agent and lender (“Agent” or “Wells Fargo”) and such other lenders as have or may thereafter become a party to the Wells Fargo Facility. The Amended Wells Fargo facility amended and restated the prior Wells Fargo Facility.

Under the terms of the Amended Wells Fargo Facility, the Borrowers may borrow up to $90 million consisting of: (i) $15 million immediately borrowed in the form of a “first in last out” term loan (the “FILO Tranche”) and (ii) from time to time, up to $75 million at any time consisting of revolving loans (the “Revolving Loans”) in a maximum amount up to the lesser of $75 million and a borrowing base that is calculated based on the outstanding amount of the Borrowers’ eligible receivables and eligible inventory, as described in the Amended Wells Fargo Facility. The Amended Wells Fargo Facility also contains a sublimit of $9 million for swing line loans and $2 million for letters of credit.

Amounts borrowed under the Amended Wells Fargo Facility may be used for working capital needs, certain permitted acquisitions, and to reimburse drawings under letters of credit.

Interest under the Amended Wells Fargo Facility is payable in arrears on the first day of each month. Interest charges with respect to Revolving Loans are computed on the actual principal amount of Revolving Loans outstanding at a rate per annum equal to (A) with respect to Base Rate loans, the sum of (i) a rate per annum equal to the higher of (1) 1.0%, (2) the federal funds rate plus 0.5%, (3) one month term SOFR plus 1.0%, and (4) the prime commercial lending rate of Wells Fargo, plus (ii) between 1.25% and 1.75% depending on average monthly undrawn availability and (B) with respect to SOFR loans, the sum of the applicable SOFR rate plus between 2.36% and 2.86% depending on average quarterly undrawn availability. Interest charges with respect to the FILO Tranche are computed on the actual principal amount of FILO Tranche loans outstanding at a rate per annum equal to (A) with respect to Base Rate FILO Tranche loans, the sum of (i) a rate per annum equal to the higher of (1) 1.0%, (2) the federal funds rate plus 0.5%, (3) one month term SOFR plus 1.0%, and (4) the prime commercial lending rate of Wells Fargo, plus (ii) 6.5% and (B) with respect to SOFR FILO Tranche loans, the sum of the applicable SOFR rate plus 7.50%.

In connection with the closing of the Amended Wells Fargo Facility, the Company also entered into a First Amendment to Guaranty and Security Agreement, dated as of March 2, 2022 (the “Amended Revolver Guaranty and Security Agreement”), pursuant to which the Company and certain subsidiaries are continuing to unconditionally guarantee the payment and performance of all obligations owing by Borrowers to Wells Fargo, as Agent for the benefit of the revolving lenders. Pursuant to the Revolver Guaranty and Security Agreement, as amended, Borrowers, the Company and certain other subsidiaries are continuing to grant to the Agent, for the benefit of the Wells Fargo Facility lenders, a security interest in substantially all of their respective assets, including receivables, equipment, general intangibles (including intellectual property), inventory, subsidiary stock, real property, and certain other assets.

The Amended Wells Fargo Facility contains a financial covenant requiring the Company to maintain at all times minimum liquidity (defined as availability under the Amended Wells Fargo Facility plus unrestricted cash) of at least $5 million, of which at least $3 million must be derived from availability. The Amended Wells Fargo Facility also contains a springing covenant, which takes effect only upon a failure to maintain undrawn availability of at least $11.25 million or upon an election by the Borrowers to increase the inventory component of the borrowing base, requiring the Company to maintain a Fixed Charge Coverage Ratio (FCCR) of not less than 1.00 to 1.00, as of the end of each trailing period of twelve consecutive months commencing with the month prior to the triggering of the covenant. The FCCR (as defined in the Wells Fargo Facility) is the ratio of (a) EBITDA for such period, minus unfinanced capital expenditures made during such period, to (b) the aggregate amount of (i) interest expense required to be paid (other than interest paid-in-kind, amortization of financing fees, and other non-cash interest expense) during such period, (ii) scheduled principal payments (but excluding principal payments relating to outstanding Revolving Loans under the Amended Wells Fargo Facility), (iii) all net federal,

61

Table of Contents

state, and local income taxes required to be paid during such period (provided, that any tax refunds received shall be applied to the period in which the cash outlay for such taxes was made), (iv) all restricted payments paid (as defined in the Amended Wells Fargo Facility) during such period, and (v) to the extent not otherwise deducted from EBITDA for such period, all payments required to be made during such period in respect of any funding deficiency or funding shortfall with respect to any pension plan. The FCCR covenant ceases after the Borrowers have been in compliance therewith for two consecutive months.

The Amended Wells Fargo Facility also contains customary non-financial covenants relating to the Company and the Borrowers, including limitations on Borrowers’ ability to pay dividends on common stock or preferred stock, and also includes certain events of default, including payment defaults, breaches of representations and warranties, covenant defaults, cross-defaults to other obligations, events of bankruptcy and insolvency, certain ERISA events, judgments in excess of specified amounts, impairments to guarantees and a change of control.

The commitments under the Wells Fargo Facility will expire and the full outstanding principal amount of the loans, together with accrued and unpaid interest, are due and payable in full on March 2, 2027, unless the commitments are terminated and the outstanding principal amount of the loans are accelerated sooner following an event of default or in the event of certain other cross-defaults.

​

​

62

Table of Contents

SIGNATURES

​

Pursuant to the requirements of Section 13 or 15 (d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

​

HUDSON TECHNOLOGIES, INC.

​

s |  | ​
By: | /s/ Brian F. Coleman | ​
​ | Brian F. Coleman, Chairman and Chief Executive Officer
​ | ​
Date: | March 24, 2022

​

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.

​

Signature |  | Title |  | Date
​ | ​ | ​ | ​ | ​
/s/ Brian F. Coleman | ​ | Chairman of the Board, President and Chief Executive Officer (Principal Executive Officer) | ​ | March 24, 2022
Brian F. Coleman | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​
/s/ Nat Krishnamurti | ​ | Chief Financial Officer (Principal Financial and Accounting Officer) | ​ | March 24, 2022
Nat Krishnamurti | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​
/s/ Vincent P. Abbatecola | ​ | Director | ​ | March 24, 2022
Vincent P. Abbatecola | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​
/s/ Stephen P. Mandracchia | ​ | Director | ​ | March 24, 2022
Stephen P. Mandracchia | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​
/s/ Otto C. Morch | ​ | Director | ​ | March 24, 2022
Otto C. Morch | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​
/s/ Richard Parrillo | ​ | Director | ​ | March 24, 2022
Richard Parrillo | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​
/s/ Eric A. Prouty | ​ | Director | ​ | March 24, 2022
Eric A. Prouty | ​ | ​ | ​ | ​

​

​

​

63