{"schema_version":"secwatch.filing_event.v1","accession":"0001477932-24-006503","form_type":"8-K","ticker":"BCHT","cik":"0000728385","company_name":"Birchtech Corp.","filed_at":"2024-10-17T23:59:59+00:00","discovered_at":"2026-05-14T18:03:10.928318+00:00","generated_at":"2026-05-30T13:29:45.628934+00:00","sec_items":["5.03","7.01","8.01","9.01"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.55,"calibrated_materiality_score":0.55,"confidence":"high","headline":"Birchtech (f/k/a Midwest Energy Emissions) begins trading under BCHT; receives conditional TSX listing approval","bullets":["Corporate name changed to Birchtech Corp., effective Oct 17, 2024.","Stock symbol changed to BCHT on TSXV and OTCQB; old symbol MEEC retired.","Received conditional approval to list on Toronto Stock Exchange (TSX); subject to fulfillment of requirements.","Shareholder webinar scheduled for Oct 22, 2024 to discuss rebrand and strategic vision.","Company operates two divisions: ME2C (mercury emissions) and WE2C (water/PFAS)."],"urls":{"canonical":"https://secwatch.observer/filing/0001477932-24-006503","json":"https://secwatch.observer/filing/0001477932-24-006503.json","markdown":"https://secwatch.observer/filing/0001477932-24-006503.md","text":"https://secwatch.observer/filing/0001477932-24-006503.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/728385/000147793224006503/0001477932-24-006503-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/728385/000147793224006503/meec_8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-30T13:29:45.628934+00:00"},"review":{"review_status":"machine_generated","human_reviewed":false,"corrected":false,"correction_note":null,"correction_timestamp":null,"superseded_by":null,"related_filings":[]},"source_grounded_claims":[{"claim_id":"c6be30dea191ccc343f228118de2d349cc3793b2","claim":"Birchtech Corp.: Changed corporate name from Midwest Energy Emissions Corp. to Birchtech Corp (effective 2024-10-17).","evidence_excerpt":"Effective on October 17, 2024, Midwest Energy Emissions Corp. (the “Company”) changed its corporate name to “Birchtech Corp.” pursuant to a Certificate of Amendment to its Certificate of Incorporation filed with the State of Delaware (the “Corporate Name Change”).","evidence_source":"SEC 8-K Item 5.03/5.05/5.06","evidence_url":"https://www.sec.gov/Archives/edgar/data/728385/000147793224006503/0001477932-24-006503-index.htm","confidence":0.9,"family_label":"Governance Changes","details":[{"label":"Change","value":"charter amendment"},{"label":"Effective","value":"2024-10-17"}],"fact_type":"governance_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}