Birchtech Corp. (BCHT) SEC Filings https://ir.birchtech.com/public-filings/annual-reports/rss Birchtech Corp. (BCHT) - Annual Reports en-us https://d1io3yog0oux5.cloudfront.net/_37d2b45c44e3c7bec0de500a7ac688ab/birchtech/files/theme/images/logo600.png Birchtech Corp. Logo Equisolve Investor Relations Suite <![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[10-K - Annual report [Section 13 and 15(d), not S-K Item 405]]]> https://ir.birchtech.com/public-filings/all-sec-filings/content/0001477932-25-002237/0001477932-25-002237.pdf Mon, 31 Mar 25 00:00:00 -0400 https://ir.birchtech.com/public-filings/all-sec-filings/content/0001477932-25-002237/0001477932-25-002237.pdf <![CDATA[ARS - Annual report to security holders]]> https://ir.birchtech.com/public-filings/all-sec-filings/content/0001477932-24-007663/0001477932-24-007663.pdf Wed, 27 Nov 24 00:00:00 -0500 https://ir.birchtech.com/public-filings/all-sec-filings/content/0001477932-24-007663/0001477932-24-007663.pdf <![CDATA[10-K - Annual report pursuant to Section 13 and 15(d)]]> https://ir.birchtech.com/public-filings/all-sec-filings/content/0001477932-24-002170/0001477932-24-002170.pdf Tue, 16 Apr 24 00:00:00 -0400 https://ir.birchtech.com/public-filings/all-sec-filings/content/0001477932-24-002170/0001477932-24-002170.pdf <![CDATA[NT 10-K - Notice under Rule 12b25 of inability to timely file all or part of a Form 10-K, 10-KSB, or 10-KT]]> https://ir.birchtech.com/public-filings/all-sec-filings/content/0001477932-24-001716/0001477932-24-001716.pdf Mon, 01 Apr 24 00:00:00 -0400 https://ir.birchtech.com/public-filings/all-sec-filings/content/0001477932-24-001716/0001477932-24-001716.pdf <![CDATA[ARS - Annual report to security holders]]> https://ir.birchtech.com/public-filings/all-sec-filings/content/0001477932-23-008089/0001477932-23-008089.pdf Mon, 06 Nov 23 00:00:00 -0500 https://ir.birchtech.com/public-filings/all-sec-filings/content/0001477932-23-008089/0001477932-23-008089.pdf <![CDATA[10-K - Annual report pursuant to Section 13 and 15(d)]]> https://ir.birchtech.com/public-filings/all-sec-filings/content/0001477932-23-003370/0001477932-23-003370.pdf Mon, 15 May 23 00:00:00 -0400 https://ir.birchtech.com/public-filings/all-sec-filings/content/0001477932-23-003370/0001477932-23-003370.pdf <![CDATA[NT 10-K - Notice under Rule 12b25 of inability to timely file all or part of a Form 10-K, 10-KSB, or 10-KT]]> https://ir.birchtech.com/public-filings/all-sec-filings/content/0001477932-23-002033/0001477932-23-002033.pdf Fri, 31 Mar 23 00:00:00 -0400 https://ir.birchtech.com/public-filings/all-sec-filings/content/0001477932-23-002033/0001477932-23-002033.pdf <![CDATA[10-K - Annual report pursuant to Section 13 and 15(d)]]> https://ir.birchtech.com/public-filings/all-sec-filings/content/0001477932-22-002069/0001477932-22-002069.pdf Tue, 05 Apr 22 00:00:00 -0400 https://ir.birchtech.com/public-filings/all-sec-filings/content/0001477932-22-002069/0001477932-22-002069.pdf <![CDATA[NT 10-K - Notice under Rule 12b25 of inability to timely file all or part of a Form 10-K, 10-KSB, or 10-KT]]> https://ir.birchtech.com/public-filings/all-sec-filings/content/0001477932-22-001859/0001477932-22-001859.pdf Thu, 31 Mar 22 00:00:00 -0400 https://ir.birchtech.com/public-filings/all-sec-filings/content/0001477932-22-001859/0001477932-22-001859.pdf