secwatch.observer — SEC 8-K summary
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Issuer:     Birchtech Corp. (BCHT)
CIK:        0000728385
Form:       8-K
Filed at:   2022-08-08T23:59:59+00:00
Accession:  0001477932-22-005733
Event type: other_material
Sentiment:  negative
Materiality: 0.50
Item codes: 4.01, 9.01
LLM model:  deepseek-v4-flash:cloud@v2

Midwest Energy Emissions appoints Marcum LLP as auditor; prior reports flagged going concern
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- Board approved Marcum LLP as independent auditor for FY2022 on Aug 3, 2022.
- Prior auditor Rotenberg combined with Marcum effective Feb 1, 2022; formally resigned Aug 3.
- Rotenberg's 2020 and 2021 reports included an explanatory paragraph on substantial doubt about going concern.
- No disagreements or reportable events with Rotenberg during the past two fiscal years.

Source:
  EDGAR index:    https://www.sec.gov/Archives/edgar/data/728385/000147793222005733/0001477932-22-005733-index.htm
  Primary doc:    https://www.sec.gov/Archives/edgar/data/728385/000147793222005733/meec_8k.htm
  HTML page:      https://secwatch.observer/filing/0001477932-22-005733

License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer