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Home/The Filing Wire/Birchtech Corp./ 10-K

Annual Report · 10-K

Birchtech Corp.

Annual Report

Filed Mar 31, 2026Accepted Mar 31, 2026, 4:15 PM EDTCIK 728385Accession 0001477932-26-001835
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Company context

We are a provider of specialty activated carbon technologies, delivering innovative solutions for air and water purification. We provide patented and proprietary technologies for mercury emissions capture to the coal-fired utility sector, and are developing disruptive water purification technologies with a specialization on forever chemicals such as PFAS and PFOS.

Current securities

BCHTNYSE_AMERICAN · EQUITY · CurrentBCHTTSX · EQUITY · Current
Historical securities (5)
BCHTNYSE_AMERICAN · EQUITY · Historical · closed Oct 19, 2026BCHTOTC · EQUITY · Historical · closed Dec 31, 2025BCHTOTC · EQUITY · Historical · closed Dec 31, 2025BCHTDOTC · EQUITY · Historical · closed Jan 30, 2026MEECOTC · EQUITY · Historical · closed Oct 17, 2024

Recent company filings

  1. 10-Q filingAug 13, 2026
  2. Material Modification to Rights of Security Holders · Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year · Submission of Matters to a Vote of Security HoldersJul 28, 2026
  3. DEF 14A filingJun 24, 2026
  4. ARS filingJun 24, 2026
  5. PRE 14A filingJun 8, 2026

Registered securities in this filing

BIRCHTECH CORP. · 10-K · Filed 2026-03-31

As filed in this accession. Current/historical status below comes from the governed listing record; the cover itself remains exact to this filing.

Common Stock, par value $0.001

Symbol
BCHT
Exchange
NYSE
Classification
COMMON
Filing context

Context: From2025-01-01to2025-12-31

Dimensions: Not supplied

Accession 000147793226001835 · 1 registered-security cover member

Read the exact SEC filing ↗

As-filed source

Primary evidence
As filedOpen full document ↗

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