{"url_path":"/sec/bcht/10-q/2026/item-6","section_key":"item-6","section_title":"Item 6 Exhibits.**","topic":"sec","document":{"doc_type":"10-Q","doc_date":"2026-05-13","source_url":"https://www.sec.gov/Archives/edgar/data/728385/0001477932-26-003054-index.html","accession_number":"0001477932-26-003054","cik":"0000728385","ticker":"BCHT","issuer_name":"Birchtech Corp.","edgar_url":"https://www.sec.gov/Archives/edgar/data/728385/0001477932-26-003054-index.html","primary_entity_key":"0000728385","primary_entity_name":"Birchtech Corp."},"word_count":236,"has_tables":true,"body_markdown":"**Item 6. Exhibits.**\n\n \n\n**Exhibit**\n\n**Number**\n\n \n\n**Description**\n\n \n\n \n\n[31.1*](meec_ex311.htm)\n\n \n\n[Certification by Principal Executive Officer, required by Rule 13a-14(a) or Rule 15d-14(a) of the Exchange Act](meec_ex311.htm)\n\n[31.2*](meec_ex312.htm)\n\n \n\n[Certification by Principal Financial Officer, required by Rule 13a-14(a) or Rule 15d-14(a) of the Exchange Act](meec_ex312.htm)\n\n[32.1*](meec_ex321.htm)\n\n \n\n[Certification by Principal Executive Officer, required by Rule 13a-14(b) or Rule 15d-14(b) of the Exchange Act and Section 1350 of Chapter 63 of Title 18 of the United States Code](meec_ex321.htm)\n\n[32.2*](meec_ex322.htm)\n\n \n\n[Certification by Principal Financial Officer, required by Rule 13a-14(b) or Rule 15d-14(b) of the Exchange Act and Section 1350 of Chapter 63 of Title 18 of the United States Code](meec_ex322.htm)\n\n101.INS*\n\n \n\nInline XBRL Instance Document\n\n101.SCH*\n\n \n\nInline XBRL Taxonomy Extension Schema Document\n\n101.CAL*\n\n \n\nInline XBRL Taxonomy Extension Calculation Linkbase Document\n\n101.DEF*\n\n \n\nInline XBRL Taxonomy Extension Definition Linkbase Document\n\n101.LAB*\n\n \n\nInline XBRL Taxonomy Extension Label Linkbase Document\n\n101.PRE*\n\n \n\nInline XBRL Taxonomy Extension Presentation Linkbase Document\n\n104*\n\n \n\nCover Page Interactive Data File (formatted as inline XBRL and contained in Exhibit 101)\n\n_________________\n\n* Filed herewith.\n\n \n\n \n\n35\n\n*Table of Contents*\n\n \n\n**SIGNATURES**\n\n \n\nPursuant to the requirements 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.\n\n \n\n \n\n**BIRCHTECH CORP.**\n\n \n\n \n\n \n\n \n\nDated: May 13, 2026\n\nBy:\n\n*/s/ Richard MacPherson*\n\n \n\n \n\nRichard MacPherson\n\n \n\n \n\n \n\nPresident and Chief Executive Officer\n\n \n\n \n\n \n\n(Principal Executive Officer)\n\n \n\n \n\n \n\n \n\n \n\nDated: May 13, 2026\n\nBy:\n\n*/s/ Michael Mioska*\n\n \n\n \n\n \n\nMichael Mioska\n\n \n\n \n\n \n\nChief Financial Officer\n\n \n\n \n\n \n\n(Principal Financial Officer)\n\n \n\n \n\n \n\n36"}