{"schema_version":"secwatch.filing_event.v1","accession":"0001477932-23-007675","form_type":"8-K","ticker":"BCHT","cik":"0000728385","company_name":"Birchtech Corp.","filed_at":"2023-10-16T23:59:59+00:00","discovered_at":"2026-05-14T18:03:31.841836+00:00","generated_at":"2026-06-09T23:41:08.562311+00:00","sec_items":["5.02","9.01"],"event_type":"leadership","sentiment":"negative","materiality_score":0.65,"calibrated_materiality_score":0.65,"confidence":"high","headline":"CFO Greg Powell resigns effective immediately; replacement search underway","bullets":["Greg Powell resigned as CFO of Midwest Energy Emissions Corp. effective October 10, 2023.","Powell served as CFO since March 1, 2023, provided by The CFO Centre under an engagement letter.","Company is vetting candidates and expects to announce a replacement in the coming days.","No other officer departures or changes were reported in the filing."],"urls":{"canonical":"https://secwatch.observer/filing/0001477932-23-007675","json":"https://secwatch.observer/filing/0001477932-23-007675.json","markdown":"https://secwatch.observer/filing/0001477932-23-007675.md","text":"https://secwatch.observer/filing/0001477932-23-007675.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/728385/000147793223007675/0001477932-23-007675-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/728385/000147793223007675/meec_8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-09T23:41:08.562311+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":"b944e16c37","claim":"Greg Powell resigned as Chief Financial Officer at Birchtech Corp..","evidence_excerpt":"On October 10, 2023, Greg Powell submitted his resignation as Chief Financial Officer of Midwest Energy Emissions Corp. (the “Company”) effective immediately.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/728385/000147793223007675/0001477932-23-007675-index.htm","confidence":1.0,"family_label":"Executive change","details":[{"label":"Action","value":"resigned"},{"label":"Role","value":"Chief Financial Officer"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}