ISSUER DOSSIER · CIK 0000728385

Birchtech Corp. (BCHT)

Issuer profile2 captured filing nodes

Business context

Official SEC registration filing — S-1/A. Read the linked SEC filing for business, risk factors and offering details.

First captured2026-02-03

Latest filingS-1/A · 2026-02-12

Registration path0 initial filings · 2 amendments

Compare the next amendment against the current filing, then monitor for EFFECT or 424B. Material offering terms can change between amendments.

Latest captured filing: S-1/A · 2026-02-12 · 168 days ago.