Birchtech Corp. (BCHT) SEC Filings https://ir.birchtech.com/public-filings/all-sec-filings/rss Birchtech Corp. (BCHT) - All SEC Filings en-us https://d1io3yog0oux5.cloudfront.net/_9f7cd7836f37f097352ded0b7a6bd01f/birchtech/files/theme/images/logo600.png Birchtech Corp. Logo Equisolve Investor Relations Suite <![CDATA[ARS - Annual Report to Security Holders]]> https://ir.birchtech.com/public-filings/all-sec-filings/content/0001477932-26-003964/0001477932-26-003964.pdf Wed, 24 Jun 26 00:00:00 -0400 https://ir.birchtech.com/public-filings/all-sec-filings/content/0001477932-26-003964/0001477932-26-003964.pdf <![CDATA[DEF 14A - Definitive proxy statements]]> https://ir.birchtech.com/public-filings/all-sec-filings/content/0001477932-26-003963/0001477932-26-003963.pdf Wed, 24 Jun 26 00:00:00 -0400 https://ir.birchtech.com/public-filings/all-sec-filings/content/0001477932-26-003963/0001477932-26-003963.pdf <![CDATA[PRE 14A - Preliminary proxy statement not related to a contested matter or merger/acquisition]]> https://ir.birchtech.com/public-filings/all-sec-filings/content/0001477932-26-003688/0001477932-26-003688.pdf Mon, 08 Jun 26 00:00:00 -0400 https://ir.birchtech.com/public-filings/all-sec-filings/content/0001477932-26-003688/0001477932-26-003688.pdf <![CDATA[10-Q - Quarterly report [Sections 13 or 15(d)]]]> https://ir.birchtech.com/public-filings/all-sec-filings/content/0001477932-26-003054/0001477932-26-003054.pdf Wed, 13 May 26 00:00:00 -0400 https://ir.birchtech.com/public-filings/all-sec-filings/content/0001477932-26-003054/0001477932-26-003054.pdf <![CDATA[8-K/A - Current report]]> https://ir.birchtech.com/public-filings/all-sec-filings/content/0001477932-26-002995/0001477932-26-002995.pdf Tue, 12 May 26 00:00:00 -0400 https://ir.birchtech.com/public-filings/all-sec-filings/content/0001477932-26-002995/0001477932-26-002995.pdf <![CDATA[3 - Initial statement of beneficial ownership of securities]]> https://ir.birchtech.com/public-filings/all-sec-filings/content/0000945836-26-000003/0000945836-26-000003.pdf Wed, 06 May 26 00:00:00 -0400 https://ir.birchtech.com/public-filings/all-sec-filings/content/0000945836-26-000003/0000945836-26-000003.pdf <![CDATA[8-K - Current report]]> https://ir.birchtech.com/public-filings/all-sec-filings/content/0001477932-26-002802/0001477932-26-002802.pdf Wed, 06 May 26 00:00:00 -0400 https://ir.birchtech.com/public-filings/all-sec-filings/content/0001477932-26-002802/0001477932-26-002802.pdf <![CDATA[8-K - Current report]]> https://ir.birchtech.com/public-filings/all-sec-filings/content/0001477932-26-002165/0001477932-26-002165.pdf Mon, 13 Apr 26 00:00:00 -0400 https://ir.birchtech.com/public-filings/all-sec-filings/content/0001477932-26-002165/0001477932-26-002165.pdf <![CDATA[10-K - Annual report [Section 13 and 15(d), not S-K Item 405]]]> https://ir.birchtech.com/public-filings/all-sec-filings/content/0001477932-26-001835/0001477932-26-001835.pdf Tue, 31 Mar 26 00:00:00 -0400 https://ir.birchtech.com/public-filings/all-sec-filings/content/0001477932-26-001835/0001477932-26-001835.pdf <![CDATA[8-K - Current report]]> https://ir.birchtech.com/public-filings/all-sec-filings/content/0001104659-26-029450/0001104659-26-029450.pdf Tue, 17 Mar 26 00:00:00 -0400 https://ir.birchtech.com/public-filings/all-sec-filings/content/0001104659-26-029450/0001104659-26-029450.pdf