{"schema_version":"secwatch.filing_event.v1","accession":"0001477932-22-008126","form_type":"8-K","ticker":"BCHT","cik":"0000728385","company_name":"Birchtech Corp.","filed_at":"2022-11-02T23:59:59+00:00","discovered_at":"2026-05-14T18:03:53.382875+00:00","generated_at":"2026-06-22T15:59:04.251312+00:00","sec_items":["1.01","1.02","2.03","9.01"],"event_type":"debt","sentiment":"negative","materiality_score":0.75,"calibrated_materiality_score":0.75,"confidence":"high","headline":"Midwest Energy Emissions extends $13.2M note maturity to 2025, increases profit share by $4.5M","bullets":["Unsecured note maturity extended from Oct 31, 2022 to Aug 25, 2025; principal outstanding $13,154,931.","Profit share increased by $4.5M to $17,654,931; payable from net litigation proceeds, revenue share, and equity offering proceeds.","Secured note ($271,686) maturity also extended to Aug 25, 2025; interest rate reduced from 15% to 9% per annum.","Company granted option to repurchase AC Midwest shares at $0.50/share until Aug 25, 2025 or until AC Midwest ownership falls below 5%.","Prior Debt Repayment Agreement terminated after $12M equity offering condition unmet by June 30, 2022."],"urls":{"canonical":"https://secwatch.observer/filing/0001477932-22-008126","json":"https://secwatch.observer/filing/0001477932-22-008126.json","markdown":"https://secwatch.observer/filing/0001477932-22-008126.md","text":"https://secwatch.observer/filing/0001477932-22-008126.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/728385/000147793222008126/0001477932-22-008126-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/728385/000147793222008126/meec_8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-22T15:59:04.251312+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":"0c93f9abb6c161722968dc0979757bbc4899969d","claim":"Birchtech Corp. amended Amendment No. 1 to the Unsecured Note Financing Agreement and Reaffirmation of Guaranty with AC Midwest Energy LLC (effective 2022-10-28).","evidence_excerpt":"entered into Amendment No. 1 to the Unsecured Note Financing Agreement and Reaffirmation of Guaranty (“Amendment No. 1”) with AC Midwest Energy LLC (“AC Midwest”) which amended certain provisions of the Unsecured Note Financing Agreement and Reaffirmation of Guaranty entered into with AC Midwest on February 25, 2019","evidence_source":"SEC 8-K Item 1.01/1.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/728385/000147793222008126/0001477932-22-008126-index.htm","confidence":0.9,"family_label":"Material Agreements","details":[{"label":"Action","value":"amendment"},{"label":"Agreement","value":"credit facility"},{"label":"Counterparty","value":"AC Midwest Energy LLC"},{"label":"Effective","value":"2022-10-28"}],"fact_type":"material_agreement"},{"claim_id":"15a84aa12f4dbeb354245c2b8b40fd8d9af637f3","claim":"Birchtech Corp. entered into Repurchase Option Agreement with AC Midwest Energy LLC (effective 2022-10-28).","evidence_excerpt":"entered into a Repurchase Option Agreement pursuant to which the Company shall have the option to repurchase a portion of the shares of common stock of the Company owned by AC Midwest at a purchase price of $0.50 per share","evidence_source":"SEC 8-K Item 1.01/1.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/728385/000147793222008126/0001477932-22-008126-index.htm","confidence":0.7,"family_label":"Material Agreements","details":[{"label":"Action","value":"entry"},{"label":"Counterparty","value":"AC Midwest Energy LLC"},{"label":"Effective","value":"2022-10-28"}],"fact_type":"material_agreement"},{"claim_id":"e4dff6965c27232bda0a71ab79ca6106cac34ecd","claim":"Birchtech Corp. amended Amendment No. 4 to Amended and Restated Financing Agreement and Reaffirmation of Guaranty with AC Midwest Energy LLC (effective 2022-10-28).","evidence_excerpt":"entered into Amendment No. 4 to Amended and Restated Financing Agreement and Reaffirmation of Guaranty (“Amendment No. 4”) with AC Midwest which extended the maturity date of the Secured Note from October 31, 2022 to August 25, 2025","evidence_source":"SEC 8-K Item 1.01/1.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/728385/000147793222008126/0001477932-22-008126-index.htm","confidence":0.9,"family_label":"Material Agreements","details":[{"label":"Action","value":"amendment"},{"label":"Agreement","value":"credit facility"},{"label":"Counterparty","value":"AC Midwest Energy LLC"},{"label":"Effective","value":"2022-10-28"}],"fact_type":"material_agreement"},{"claim_id":"edc289c250454ef737fb5de3f58eea3cdf4f3911","claim":"Birchtech Corp. terminated Termination Agreement with AC Midwest Energy LLC (effective 2022-10-28).","evidence_excerpt":"The Company, MES and AC Midwest entered into a Termination Agreement (the “Termination Agreement”) on October 28, 2022 related to the Debt Repayment Agreement and Exchange Agreement entered into on June 1, 2021","evidence_source":"SEC 8-K Item 1.01/1.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/728385/000147793222008126/0001477932-22-008126-index.htm","confidence":0.9,"family_label":"Material Agreements","details":[{"label":"Action","value":"termination"},{"label":"Agreement","value":"settlement"},{"label":"Counterparty","value":"AC Midwest Energy LLC"},{"label":"Effective","value":"2022-10-28"}],"fact_type":"material_agreement"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}