NYSE·Measuring & Controlling Devices, NEC

BCHTBirchtech Corp.

Birchtech Corp. (BCHT) has delinquent SEC filing and auditor change flags.

Last filing: filing·May 13, 2026EDGAR ↗

BCHT SEC Filings

Full cached SEC EDGAR filing history for BCHT, grouped by form type and sorted newest-first within each group. 0 filings across 0 form types.

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Filings sourced verbatim from SEC EDGAR submissions metadata. “Structured” links route to DredgeCap's per-filing renderer (XBRL-backed financials + cited highlights) when available; the EDGAR link always points to the canonical accession index on sec.gov.