BCHT News
Official issuer or fund updates, exact SEC current reports, and large established publisher coverage, newest first. Every lawfully retained item remains in the corpus; each public page contains at most 100 rows. Headlines open the exact source; summaries are concise descriptions and not investment recommendations. Captured 2026-08-31.
| Date | Type | Publisher | Headline | Summary |
|---|---|---|---|---|
| 2026-07-28 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 3.03,5.03,5.07,9.01. |
| 2026-05-12 | Current report | SEC filing | Birchtech Corp. filed Form 8-K/A | Birchtech Corp. filed Form 8-K/A covering items 5.02,9.01. |
| 2026-05-06 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 5.02,9.01. |
| 2026-04-13 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 5.08,8.01,9.01. |
| 2026-03-17 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 8.01,9.01. |
| 2026-02-27 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 1.01,8.01,9.01. |
| 2026-01-05 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 8.01,9.01. |
| 2025-12-29 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 3.03,5.03,9.01. |
| 2025-06-20 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 5.02,9.01. |
| 2025-03-31 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 4.02,9.01. |
| 2025-03-04 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 2.02,9.01. |
| 2025-01-06 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 5.07,9.01. |
| 2024-11-15 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 5.03,8.01,9.01. |
| 2024-10-21 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 8.01,9.01. |
| 2024-10-17 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 5.03,7.01,8.01,9.01. |
| 2024-08-01 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 8.01,9.01. |
| 2024-06-13 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 5.02,9.01. |
| 2024-03-05 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 8.01,9.01. |
| 2024-03-04 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 1.01,2.02,8.01. |
| 2024-01-04 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 8.01,9.01. |
| 2023-12-07 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 5.07,9.01. |
| 2023-11-14 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 8.01,9.01. |
| 2023-11-07 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 5.02,9.01. |
| 2023-10-16 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 5.02,9.01. |
| 2023-09-15 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 5.08,8.01,9.01. |
| 2023-09-14 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 4.01,9.01. |
| 2023-07-10 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 8.01,9.01. |
| 2023-07-06 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 5.02,9.01. |
| 2023-05-30 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 5.02,9.01. |
| 2023-04-20 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 2.02,9.01. |
| 2023-02-15 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 5.02,9.01. |
| 2023-02-03 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 1.01,9.01. |
| 2023-01-25 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 7.01,9.01. |
| 2023-01-18 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 2.02,9.01. |
| 2022-12-07 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 5.02,9.01. |
| 2022-11-02 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 1.01,1.02,2.03,9.01. |
| 2022-09-30 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 1.01,2.03,9.01. |
| 2022-08-31 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 1.01,2.03,9.01. |
| 2022-08-08 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 4.01,9.01. |
| 2022-06-06 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 3.02,5.02,9.01. |
| 2022-03-10 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 2.02,9.01. |
| 2022-02-25 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 5.07,9.01. |
| 2022-02-17 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 2.02,9.01. |
| 2022-01-28 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 1.01,8.01,9.01. |
| 2021-11-26 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 5.02,9.01. |
| 2021-11-05 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 2.02,9.01. |
| 2021-10-05 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 7.01,9.01. |
| 2021-06-28 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 3.02,8.01,9.01. |
| 2021-06-09 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 5.07. |
| 2021-06-07 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 1.01,8.01,9.01. |
| 2021-05-18 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 5.02,9.01. |
| 2021-03-12 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 3.02. |
| 2021-03-10 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 5.08,9.01. |
| 2020-10-23 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 5.02. |
| 2020-09-23 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 7.01,9.01. |
| 2020-08-06 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 8.01,9.01. |
| 2020-07-14 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 5.02. |
| 2020-06-09 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 4.01,9.01. |
| 2020-05-15 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 8.01. |
| 2020-04-14 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 4.02,8.01. |
| 2019-11-19 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 5.02. |
| 2019-10-24 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 1.01,3.02. |
| 2019-07-25 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 8.01,9.01. |
| 2019-06-27 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 1.01,3.02. |
| 2019-06-19 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 1.01,3.02. |
| 2019-06-07 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 3.02,5.02,8.01. |
| 2019-05-15 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 3.02,5.02. |
| 2019-03-01 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 1.01,2.03,9.01. |
| 2018-12-21 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 4.01,9.01. |
| 2018-10-12 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 5.02. |
| 2018-09-18 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 1.01,2.03. |
| 2018-06-20 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 1.01,2.03,5.07,9.01. |
| 2017-09-14 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 5.02. |
| 2017-08-04 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 1.01,9.01. |
| 2017-06-30 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 5.02,9.01. |
| 2017-06-09 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 5.07. |
| 2017-05-01 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 5.02. |
| 2017-04-27 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 2.01,3.02. |
| 2017-04-24 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 2.02,9.01. |
| 2017-03-24 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 5.02. |
| 2017-02-27 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 5.08,8.01. |
| 2017-02-14 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 5.02,9.01. |
| 2017-02-07 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 5.02. |
| 2016-12-02 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 2.03,3.02,9.01. |
| 2016-11-15 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 1.01,3.02,8.01,9.01. |
| 2016-11-03 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 1.01,8.01,9.01. |
| 2016-10-27 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 3.02. |
| 2016-08-12 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 5.07. |
| 2016-07-15 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 5.02,9.01. |
| 2016-07-12 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 2.02,9.01. |
| 2016-06-09 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 5.02,9.01. |
| 2016-06-02 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 7.01,9.01. |
| 2016-05-12 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 7.01,9.01. |
| 2016-02-22 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 1.01,9.01. |
| 2016-02-03 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 1.01,2.03,3.02,9.01. |
| 2015-11-20 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 1.01,2.03,3.02,9.01. |
| 2015-11-13 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 5.02. |
| 2015-08-06 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 2.02,9.01. |
| 2015-05-08 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 1.01,9.01. |
| 2015-04-24 | Current report | SEC filing | Birchtech Corp. filed Form 8-K | Birchtech Corp. filed Form 8-K covering items 8.01. |