Birchtech Corp 2025年度报告

FORM 10-K ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d)OF THE SECURITIES EXCHANGE ACT OF 1934 Securities registered pursuant to Section 12(b) of the Act: Securities registered pursuant to Section 12(g) of the Act: None. Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the SecuritiesAct. Yes (]No Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) ofthe Act. Yes 0 No Indicate by check mark whetherthe registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities ExchangeAct of 1934 during the preceding 12months (or for such shorter period that the registrant was required to file such reports), and (2) has been subjectto such filing requirements for the past 90 days. Yes ®No O 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 0 Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company o emerging growthcompany. See the definition of “large accelerated filer”, “accelerated filer”, “smaller reporting company” and “emerging growth company” in Rule 12b-2 of the Exchange Act.: 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 financialaccounting standards provided pursuantto Section 13(a) ofthe Exchange Act. (] Indicate by check mark whether the registrant has filed a report on and attestation to its management’s assessment ofthe effectiveness of its intemal control over financialreporting 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. [J If securities are registered pursuant to Section 12(b) of the Act, indicate by check mark whether the financial statements of the registrant included in the filing reflect thecorrection of an error to previously issued financial statements. 0 Indicate by check mark whether any of those error corrections are restatements that required a recovery analysis of incentive-based compensation received by any of theregistrant’s executive officers during the relevant recovery period pursuant to §240.10D-1(b). O Indicate by check mark whether the registrant is a shell company(as defined by Rule 12b-2 of the Exchange Act). YesTlNo The aggregate market value of the voting and non-voting common equity held by non-affiliates of the registrant as of June 30, 2025, the last business day ofthe registrant’smost recently completed second fiscal quarter, was approximately $51,341,000. ‘The number of shares outstanding of the Common Stock (8.001 par value) of the Registrant as ofthe close of business on March 31, 2026 wa26,305,966. DOCUMENTS INCORPORATED BY REFERENCE: None. [This page intentionally left blank] Ttem 1.Item 1A.Item 1B.Item 1C.Item 2.Item 3.Ttem 4.BusinessRisk FactorsUnresolved Staff CommentsCybersecurityPropertiesLegal ProceedingsMine Safety Disclosures Item 15.Item 16.Exhibits and Financial Statement SchedulesForm 10-K SummarySignatures5860 CERTAIN DEFINED TERMS As used in this document, unless the context otherwise requires, references to: “BAC” means brominated powdered activated carbon.“Birchtech Corp.,” the “Company,” “we.” “us,” and “our” means Birchtech Corp. and its consolidated subsidiaries, or any or all of them, asthe context may require.“EGUs” means electric generating units.“EPA” means the U.S. Environmental Protection Agency.“ESP” means electro-static precipitators.“GAC” means granular activated carbon.“Hazard Index MCL” means a regulatory limit used by the EPA to address safe drinking water when mixtures of certain PFAS are present.“HFPO-DA” means hexafluoropropylene oxide dimer acid, which is a specific type of chemical within the PFAS group.“Hg” means mercury.“MATS” means the Mercury and Air Toxics Standards established by the EPA to limit hazardous air pollutants emitted by coal- and oil-firedpower plants.“MCLs” means maximum contaminant levels.“MW” means megawatts.“NOX” means oxides of nitrogen.“PAC” means powdered activated carbon.“PFAS” means per-and polyfluoroalkyl substances, which are a group of synthetic chemicals also known as “forever chemicals”.“PFBS” means perfluorobutanesulfonic acid, which is a specific type of chemical within the PFAS group.“PFHxS” means perfluorohexane sulfonic acid, which is a specific type of chemical within the PFAS group.“PFNA” means perfluorononanoic acid, which s a specific type of chemical within the PFAS group.“PFOA” means perfluorooctanoic acid, which is a specific type of chemical within the PFAS