Birchtech Corp.

Symbol
BCHT on OTC
Business address
1810 Jester Drive, Corsicana, TX, 75109
State of incorporation
DE
Fiscal year end
31 December
Former names
Midwest Energy Emissions Corp. (to 12 Aug 2024), China Youth Media, Inc. (to 06 Oct 2011), DIGICORP, INC. (to 25 Sep 2008), DIGICORP (to 31 Mar 2008)
Get insider transactions for this issuer
Birchtech Corp. has filed 777 SEC EDGAR filings since 09 Aug 2001

Latest Filings

Form type Document Filing Description Filing date Reporting date File number(s)
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10-Q Open Document | Data Open Filing FORM 10-Q 13 Nov 2025 30 Sep 2025 000-33067
10-Q Open Document | Data Open Filing FORM 10-Q 14 Aug 2025 30 Jun 2025 000-33067
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8-K Open Document | Data Open Filing FORM 8-K 20 Jun 2025 13 Jun 2025 000-33067
10-Q Open Document | Data Open Filing FORM 10-Q 15 May 2025 31 Mar 2025 000-33067
10-K Open Document | Data Open Filing FORM 10-K 31 Mar 2025 31 Dec 2024 000-33067
8-K Open Document | Data Open Filing FORM 8-K 31 Mar 2025 28 Mar 2025 000-33067
8-K Open Document | Data Open Filing FORM 8-K 04 Mar 2025 04 Mar 2025 000-33067
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8-K Open Document | Data Open Filing FORM 8-K 06 Jan 2025 30 Dec 2024 000-33067
ARS Open Document Open Filing ARS 27 Nov 2024 31 Dec 2023 000-33067
DEF 14A Open Document Open Filing DEF 14A 27 Nov 2024 27 Nov 2024 000-33067
8-K Open Document | Data Open Filing FORM 8-K 15 Nov 2024 29 Oct 2024 000-33067
10-Q Open Document | Data Open Filing FORM 10-Q 14 Nov 2024 30 Sep 2024 000-33067
PRE 14A Open Document Open Filing PRE 14A 13 Nov 2024 30 Dec 2024 000-33067
8-K Open Document | Data Open Filing FORM 8-K 21 Oct 2024 08 Oct 2024 000-33067
8-K Open Document | Data Open Filing FORM 8-K 17 Oct 2024 15 Oct 2024 000-33067
10-Q Open Document | Data Open Filing FORM 10-Q 12 Aug 2024 30 Jun 2024 000-33067
8-K Open Document | Data Open Filing FORM 8-K 01 Aug 2024 30 Jul 2024 000-33067
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8-K Open Document | Data Open Filing FORM 8-K 13 Jun 2024 07 Jun 2024 000-33067
10-Q Open Document | Data Open Filing FORM 10-Q 15 May 2024 31 Mar 2024 000-33067
10-K Open Document | Data Open Filing FORM 10-K 16 Apr 2024 31 Dec 2023 000-33067
NT 10-K Open Document Open Filing NT 10-K 01 Apr 2024 31 Dec 2023 000-33067
SC 13D/A Open Document Open Filing 13 Mar 2024 005-80249
8-K Open Document | Data Open Filing FORM 8-K 05 Mar 2024 04 Mar 2024 000-33067
8-K Open Document | Data Open Filing FORM 8-K 04 Mar 2024 27 Feb 2024 000-33067
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8-K Open Document | Data Open Filing FORM 8-K 04 Jan 2024 28 Dec 2023 000-33067
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8-K Open Document | Data Open Filing FORM 8-K 07 Dec 2023 05 Dec 2023 000-33067
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10-Q Open Document | Data Open Filing FORM 10-Q 20 Nov 2023 30 Sep 2023 000-33067
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8-K Open Document | Data Open Filing FORM 8-K 14 Nov 2023 13 Nov 2023 000-33067
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8-K Open Document | Data Open Filing FORM 8-K 07 Nov 2023 01 Nov 2023 000-33067
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8-K Open Document | Data Open Filing FORM 8-K 16 Oct 2023 10 Oct 2023 000-33067
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8-K Open Document | Data Open Filing FORM 8-K 15 Sep 2023 12 Sep 2023 000-33067
8-K Open Document | Data Open Filing FORM 8-K 14 Sep 2023 11 Sep 2023 000-33067
10-Q Open Document | Data Open Filing FORM 10-Q 16 Aug 2023 30 Jun 2023 000-33067
NT 10-Q Open Document Open Filing NT 10-Q 14 Aug 2023 30 Jun 2023 000-33067
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8-K Open Document | Data Open Filing FORM 8-K 10 Jul 2023 10 Jul 2023 000-33067
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10-Q/A Open Document | Data Open Filing FORM 10-Q/A 07 Jun 2023 31 Mar 2023 000-33067
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8-K Open Document | Data Open Filing FORM 8-K 30 May 2023 26 May 2023 000-33067
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10-K Open Document | Data Open Filing FORM 10-K 15 May 2023 31 Dec 2022 000-33067
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8-K Open Document | Data Open Filing FORM 8-K 18 Jan 2023 18 Jan 2023 000-33067
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8-K Open Document | Data Open Filing FORM 8-K 31 Aug 2022 30 Aug 2022 000-33067
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10-Q Open Document | Data Open Filing FORM 10-Q 15 Aug 2022 30 Jun 2022 000-33067
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10-K Open Document | Data Open Filing FORM 10-K 05 Apr 2022 31 Dec 2021 000-33067
NT 10-K Open Document Open Filing NT 10-K 31 Mar 2022 31 Dec 2021 000-33067
8-K Open Document | Data Open Filing FORM 8-K 10 Mar 2022 08 Mar 2022 000-33067
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DEFA14A Open Document Open Filing DEFA14A 07 Feb 2022 000-33067
8-K Open Document | Data Open Filing FORM 8-K 28 Jan 2022 24 Jan 2022 000-33067
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PRE 14A Open Document Open Filing PRE 14A 10 Jan 2022 10 Jan 2022 000-33067
8-K Open Document | Data Open Filing FORM 8-K 26 Nov 2021 22 Nov 2021 000-33067
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10-Q Open Document | Data Open Filing FORM 10-Q 15 Nov 2021 30 Sep 2021 000-33067
S-1 Open Document | Data Open Filing FORM S-1 10 Nov 2021 333-260960
8-K Open Document | Data Open Filing FORM 8-K 05 Nov 2021 19 Oct 2021 000-33067
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DEFA14A Open Document Open Filing DEFA14A 21 May 2021 000-33067
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PRE 14A Open Document Open Filing PRE 14A 16 Apr 2021 16 Apr 2021 000-33067
10-K Open Document | Data Open Filing FORM 10-K 05 Apr 2021 31 Dec 2020 000-33067
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10-Q Open Document | Data Open Filing FORM 10-Q 16 Nov 2015 30 Sep 2015 000-33067
8-K Open Document Open Filing FORM 8-K 13 Nov 2015 09 Nov 2015 000-33067
CORRESP Open Document Open Filing 06 Nov 2015
10-K/A Open Document Open Filing FORM 10-K/A 06 Nov 2015 31 Dec 2014 000-33067
4 Open Document Open Filing PRIMARY DOCUMENT 02 Nov 2015 31 Oct 2015
UPLOAD Open Document Open Filing 02 Nov 2015
4 Open Document Open Filing PRIMARY DOCUMENT 02 Oct 2015 30 Sep 2015
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4 Open Document Open Filing PRIMARY DOCUMENT 29 Sep 2015 28 Sep 2015
4 Open Document Open Filing PRIMARY DOCUMENT 29 Sep 2015 28 Sep 2015
4 Open Document Open Filing PRIMARY DOCUMENT 29 Sep 2015 23 Sep 2015
4 Open Document Open Filing PRIMARY DOCUMENT 16 Sep 2015 11 Sep 2015
SC 13D/A Open Document Open Filing 10 Sep 2015 005-80249
4 Open Document Open Filing PRIMARY DOCUMENT 02 Sep 2015 31 Aug 2015
10-Q Open Document | Data Open Filing FORM 10-Q 14 Aug 2015 30 Jun 2015 000-33067
8-K Open Document Open Filing FORM 8-K 06 Aug 2015 04 Aug 2015 000-33067
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4 Open Document Open Filing PRIMARY DOCUMENT 30 Jul 2015 28 Jul 2015
4 Open Document Open Filing PRIMARY DOCUMENT 02 Jul 2015 30 Jun 2015
4 Open Document Open Filing PRIMARY DOCUMENT 10 Jun 2015 08 Jun 2015
4 Open Document Open Filing PRIMARY DOCUMENT 10 Jun 2015 08 Jun 2015
4 Open Document Open Filing PRIMARY DOCUMENT 04 Jun 2015 29 May 2015
4 Open Document Open Filing PRIMARY DOCUMENT 01 Jun 2015 28 May 2015
4 Open Document Open Filing PRIMARY DOCUMENT 01 Jun 2015 28 May 2015
4 Open Document Open Filing PRIMARY DOCUMENT 01 Jun 2015 31 May 2015
10-Q Open Document | Data Open Filing FORM 10-Q 15 May 2015 31 Mar 2015 000-33067
8-K Open Document Open Filing FORM 8-K 08 May 2015 06 May 2015 000-33067
4 Open Document Open Filing PRIMARY DOCUMENT 05 May 2015 04 May 2015
4 Open Document Open Filing PRIMARY DOCUMENT 05 May 2015 01 May 2015
4 Open Document Open Filing PRIMARY DOCUMENT 05 May 2015 01 May 2015
4 Open Document Open Filing PRIMARY DOCUMENT 05 May 2015 01 May 2015
4 Open Document Open Filing PRIMARY DOCUMENT 04 May 2015 30 Apr 2015
8-K Open Document Open Filing FORM 8-K 24 Apr 2015 23 Apr 2015 000-33067
4 Open Document Open Filing PRIMARY DOCUMENT 01 Apr 2015 31 Mar 2015
8-K Open Document Open Filing FORM 8-K 01 Apr 2015 30 Mar 2015 000-33067
4/A Open Document Open Filing PRIMARY DOCUMENT 23 Mar 2015 16 Mar 2015
SC 13D/A Open Document Open Filing 23 Mar 2015 005-80249
10-K Open Document | Data Open Filing FORM 10-K 20 Mar 2015 31 Dec 2014 000-33067
4 Open Document Open Filing PRIMARY DOCUMENT 18 Mar 2015 16 Mar 2015
3 Open Document Open Filing PRIMARY DOCUMENT 02 Mar 2015 20 Feb 2015
4 Open Document Open Filing PRIMARY DOCUMENT 02 Mar 2015 01 Mar 2015
8-K Open Document Open Filing FORM 8-K 26 Feb 2015 20 Feb 2015 000-33067
4 Open Document Open Filing PRIMARY DOCUMENT 03 Feb 2015 31 Jan 2015
4 Open Document Open Filing PRIMARY DOCUMENT 05 Jan 2015 31 Dec 2014
4 Open Document Open Filing PRIMARY DOCUMENT 02 Jan 2015 30 Dec 2014
4 Open Document Open Filing PRIMARY DOCUMENT 02 Jan 2015 31 Dec 2014
8-K Open Document Open Filing FORM 8-K 05 Dec 2014 01 Dec 2014 000-33067
3 Open Document Open Filing PRIMARY DOCUMENT 03 Dec 2014 24 Nov 2014
4 Open Document Open Filing PRIMARY DOCUMENT 02 Dec 2014 30 Nov 2014
8-K Open Document Open Filing FORM 8-K 01 Dec 2014 24 Nov 2014 000-33067
3 Open Document Open Filing PRIMARY DOCUMENT 25 Nov 2014 16 Nov 2014
8-K Open Document Open Filing FORM 8-K 21 Nov 2014 18 Nov 2014 000-33067
8-K Open Document Open Filing FORM 8-K 20 Nov 2014 16 Nov 2014 000-33067
10-Q Open Document | Data Open Filing FORM 10-Q 14 Nov 2014 30 Sep 2014 000-33067
4 Open Document Open Filing PRIMARY DOCUMENT 31 Oct 2014 31 Oct 2014
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DEF 14A Open Document Open Filing DEF 14A 27 Oct 2014 24 Oct 2014 000-33067
PRE 14A Open Document Open Filing PRE 14A 17 Oct 2014 17 Oct 2014 000-33067
8-K Open Document Open Filing FORM 8-K 16 Oct 2014 09 Oct 2014 000-33067
4/A Open Document Open Filing PRIMARY DOCUMENT 02 Oct 2014 25 Sep 2014
4 Open Document Open Filing PRIMARY DOCUMENT 01 Oct 2014 30 Sep 2014
4/A Open Document Open Filing PRIMARY DOCUMENT 01 Oct 2014 31 Aug 2014
3/A Open Document Open Filing PRIMARY DOCUMENT 01 Oct 2014 14 Aug 2014
4 Open Document Open Filing PRIMARY DOCUMENT 29 Sep 2014 25 Sep 2014
3 Open Document Open Filing PRIMARY DOCUMENT 09 Sep 2014 01 Sep 2014
4 Open Document Open Filing PRIMARY DOCUMENT 04 Sep 2014 31 Aug 2014
D Open Document Open Filing 27 Aug 2014 021-223687
3 Open Document Open Filing OWNERSHIP DOCUMENT 25 Aug 2014 14 Aug 2014
SC 13D Open Document Open Filing SCHEDULE 13D 25 Aug 2014 005-80249
8-K Open Document Open Filing FORM 8-K 15 Aug 2014 14 Aug 2014 000-33067
10-Q Open Document | Data Open Filing FORM 10-Q 14 Aug 2014 30 Jun 2014 000-33067
4 Open Document Open Filing PRIMARY DOCUMENT 06 Aug 2014 01 May 2014
4 Open Document Open Filing PRIMARY DOCUMENT 05 Aug 2014 01 May 2014
4 Open Document Open Filing PRIMARY DOCUMENT 05 Aug 2014 29 Apr 2014
4 Open Document Open Filing PRIMARY DOCUMENT 02 Jul 2014 30 Jun 2014
4 Open Document Open Filing PRIMARY DOCUMENT 27 Jun 2014 26 Jun 2014
8-K Open Document Open Filing FORM 8-K 19 Jun 2014 16 Jun 2014 000-33067
4 Open Document Open Filing PRIMARY DOCUMENT 18 Jun 2014 16 Jun 2014
4 Open Document Open Filing PRIMARY DOCUMENT 18 Jun 2014 11 Jun 2014
D/A Open Document Open Filing 16 May 2014 021-216685
10-Q Open Document | Data Open Filing FORM 10-Q 15 May 2014 31 Mar 2014 000-33067
D Open Document Open Filing 05 May 2014 021-216814
D Open Document Open Filing 02 May 2014 021-216685
10-K Open Document | Data Open Filing FORM 10-K 14 Mar 2014 31 Dec 2013 000-33067
8-K Open Document Open Filing FORM 8-K 05 Feb 2014 30 Jan 2014 000-33067
4 Open Document Open Filing PRIMARY DOCUMENT 03 Feb 2014 30 Jan 2014
4 Open Document Open Filing PRIMARY DOCUMENT 03 Feb 2014 30 Jan 2014
4 Open Document Open Filing PRIMARY DOCUMENT 03 Feb 2014 30 Jan 2014
4 Open Document Open Filing PRIMARY DOCUMENT 03 Feb 2014 30 Jan 2014
4 Open Document Open Filing PRIMARY DOCUMENT 03 Feb 2014 30 Jan 2014
4 Open Document Open Filing PRIMARY DOCUMENT 03 Feb 2014 30 Jan 2014
SC 13G/A Open Document Open Filing SC 13G/A 21 Jan 2014 005-80249
4 Open Document Open Filing PRIMARY DOCUMENT 16 Jan 2014 14 Jan 2014
8-K Open Document Open Filing FORM 8-K 16 Jan 2014 10 Jan 2014 000-33067
4 Open Document Open Filing PRIMARY DOCUMENT 02 Jan 2014 01 Jan 2014
4 Open Document Open Filing PRIMARY DOCUMENT 02 Jan 2014 01 Jan 2014
4 Open Document Open Filing PRIMARY DOCUMENT 02 Jan 2014 01 Jan 2014
4 Open Document Open Filing PRIMARY DOCUMENT 02 Jan 2014 01 Jan 2014
4 Open Document Open Filing PRIMARY DOCUMENT 02 Jan 2014 12 Dec 2013
3 Open Document Open Filing PRIMARY DOCUMENT 02 Jan 2014 25 Jul 2011