# CORRESP — Birchtech Corp. (BCHT) (CIK 0000728385) > Birchtech Corp. (BCHT) (CIK 0000728385) → SEC staff · filed 2026-02-12 · ticker BCHT · SIC 3829 ## What is this A CORRESP letter is the company's written reply to the SEC during a filing review. Responses include accounting position arguments, restatement assessments, and clarifying disclosures. Released to EDGAR alongside the SEC's UPLOAD letters. ## Key facts - **Accession number:** 0001104659-26-014433 - **Form:** CORRESP - **Filer:** Birchtech Corp. (BCHT) (CIK 0000728385) - **CIK:** 0000728385 - **Ticker:** BCHT - **Filed:** 2026-02-12 - **SIC industry:** 3829 - **HQ:** Corsicana, TX ## Primary source PDF letter: https://www.sec.gov/Archives/edgar/data/728385/000110465926014433/filename1.htm EDGAR review history for this filer: https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=728385&type=UPLOAD&dateb=&owner=include&count=40 ## Other comment-letter activity for Birchtech Corp. (BCHT) (CIK 0000728385) - CORRESP — 2026-02-12 — /comment-letter/0001104659-26-014428 - CORRESP — 2026-02-12 — /comment-letter/0001104659-26-014431 - CORRESP — 2026-02-12 — /comment-letter/0001104659-26-014430 - CORRESP — 2026-02-09 — /comment-letter/0001104659-26-012055 - CORRESP — 2026-02-09 — /comment-letter/0001104659-26-012054 ## Citation > US Securities and Exchange Commission, EDGAR CORRESP comment letter, Birchtech Corp. (BCHT) (CIK 0000728385) (CIK 0000728385), filed 2026-02-12, accession 0001104659-26-014433. Retrieved via MORVS 2026-11-04 from https://api.morvs.ai/comment-letter/0001104659-26-014433. --- *[SEC comment letters dataset](/datasets/sec-comment-letters) · CC0 1.0*