TANH News — Page 2
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 |
|---|---|---|---|---|
| 2018-08-23 | Foreign issuer report | SEC filing | TANTECH HOLDINGS LTD filed Form 6-K | TANTECH HOLDINGS LTD filed Form 6-K. |
| 2018-04-19 | Foreign issuer report | SEC filing | TANTECH HOLDINGS LTD filed Form 6-K | TANTECH HOLDINGS LTD filed Form 6-K. |
| 2018-03-06 | Foreign issuer report | SEC filing | TANTECH HOLDINGS LTD filed Form 6-K | TANTECH HOLDINGS LTD filed Form 6-K. |
| 2018-01-10 | Foreign issuer report | SEC filing | TANTECH HOLDINGS LTD filed Form 6-K | TANTECH HOLDINGS LTD filed Form 6-K. |
| 2017-12-29 | Foreign issuer report | SEC filing | TANTECH HOLDINGS LTD filed Form 6-K | TANTECH HOLDINGS LTD filed Form 6-K. |
| 2017-12-21 | Foreign issuer report | SEC filing | TANTECH HOLDINGS LTD filed Form 6-K | TANTECH HOLDINGS LTD filed Form 6-K. |
| 2017-12-19 | Foreign issuer report | SEC filing | TANTECH HOLDINGS LTD filed Form 6-K | TANTECH HOLDINGS LTD filed Form 6-K. |
| 2017-12-11 | Foreign issuer report | SEC filing | TANTECH HOLDINGS LTD filed Form 6-K | TANTECH HOLDINGS LTD filed Form 6-K. |
| 2017-11-08 | Foreign issuer report | SEC filing | TANTECH HOLDINGS LTD filed Form 6-K | TANTECH HOLDINGS LTD filed Form 6-K. |
| 2017-10-12 | Foreign issuer report | SEC filing | TANTECH HOLDINGS LTD filed Form 6-K | TANTECH HOLDINGS LTD filed Form 6-K. |
| 2017-09-29 | Foreign issuer report | SEC filing | TANTECH HOLDINGS LTD filed Form 6-K | TANTECH HOLDINGS LTD filed Form 6-K. |
| 2017-09-27 | Foreign issuer report | SEC filing | TANTECH HOLDINGS LTD filed Form 6-K | TANTECH HOLDINGS LTD filed Form 6-K. |
| 2017-09-27 | Foreign issuer report | SEC filing | TANTECH HOLDINGS LTD filed Form 6-K | TANTECH HOLDINGS LTD filed Form 6-K. |
| 2017-09-25 | Foreign issuer report | SEC filing | TANTECH HOLDINGS LTD filed Form 6-K/A | TANTECH HOLDINGS LTD filed Form 6-K/A. |
| 2017-09-21 | Foreign issuer report | SEC filing | TANTECH HOLDINGS LTD filed Form 6-K | TANTECH HOLDINGS LTD filed Form 6-K. |
| 2017-07-19 | Foreign issuer report | SEC filing | TANTECH HOLDINGS LTD filed Form 6-K/A | TANTECH HOLDINGS LTD filed Form 6-K/A. |
| 2017-07-17 | Foreign issuer report | SEC filing | TANTECH HOLDINGS LTD filed Form 6-K | TANTECH HOLDINGS LTD filed Form 6-K. |
| 2017-02-24 | Foreign issuer report | SEC filing | TANTECH HOLDINGS LTD filed Form 6-K | TANTECH HOLDINGS LTD filed Form 6-K. |
| 2017-02-10 | Foreign issuer report | SEC filing | TANTECH HOLDINGS LTD filed Form 6-K | TANTECH HOLDINGS LTD filed Form 6-K. |
| 2017-01-03 | Foreign issuer report | SEC filing | TANTECH HOLDINGS LTD filed Form 6-K | TANTECH HOLDINGS LTD filed Form 6-K. |
| 2016-12-28 | Foreign issuer report | SEC filing | TANTECH HOLDINGS LTD filed Form 6-K | TANTECH HOLDINGS LTD filed Form 6-K. |
| 2016-12-22 | Foreign issuer report | SEC filing | TANTECH HOLDINGS LTD filed Form 6-K | TANTECH HOLDINGS LTD filed Form 6-K. |
| 2016-12-19 | Foreign issuer report | SEC filing | TANTECH HOLDINGS LTD filed Form 6-K | TANTECH HOLDINGS LTD filed Form 6-K. |
| 2016-12-13 | Foreign issuer report | SEC filing | TANTECH HOLDINGS LTD filed Form 6-K | TANTECH HOLDINGS LTD filed Form 6-K. |
| 2016-07-15 | Foreign issuer report | SEC filing | TANTECH HOLDINGS LTD filed Form 6-K/A | TANTECH HOLDINGS LTD filed Form 6-K/A. |
| 2016-07-12 | Foreign issuer report | SEC filing | TANTECH HOLDINGS LTD filed Form 6-K | TANTECH HOLDINGS LTD filed Form 6-K. |
| 2016-06-24 | Foreign issuer report | SEC filing | TANTECH HOLDINGS LTD filed Form 6-K | TANTECH HOLDINGS LTD filed Form 6-K. |
| 2016-05-06 | Foreign issuer report | SEC filing | TANTECH HOLDINGS LTD filed Form 6-K | TANTECH HOLDINGS LTD filed Form 6-K. |
| 2016-05-02 | Foreign issuer report | SEC filing | TANTECH HOLDINGS LTD filed Form 6-K | TANTECH HOLDINGS LTD filed Form 6-K. |
| 2016-03-04 | Foreign issuer report | SEC filing | TANTECH HOLDINGS LTD filed Form 6-K | TANTECH HOLDINGS LTD filed Form 6-K. |
| 2016-02-03 | Foreign issuer report | SEC filing | TANTECH HOLDINGS LTD filed Form 6-K | TANTECH HOLDINGS LTD filed Form 6-K. |
| 2016-01-29 | Foreign issuer report | SEC filing | TANTECH HOLDINGS LTD filed Form 6-K | TANTECH HOLDINGS LTD filed Form 6-K. |
| 2015-12-09 | Foreign issuer report | SEC filing | TANTECH HOLDINGS LTD filed Form 6-K | TANTECH HOLDINGS LTD filed Form 6-K. |
| 2015-08-21 | Foreign issuer report | SEC filing | TANTECH HOLDINGS LTD filed Form 6-K | TANTECH HOLDINGS LTD filed Form 6-K. |
| 2015-08-10 | Foreign issuer report | SEC filing | TANTECH HOLDINGS LTD filed Form 6-K | TANTECH HOLDINGS LTD filed Form 6-K. |
| 2015-06-30 | Foreign issuer report | SEC filing | TANTECH HOLDINGS LTD filed Form 6-K | TANTECH HOLDINGS LTD filed Form 6-K. |
| 2015-06-08 | Foreign issuer report | SEC filing | TANTECH HOLDINGS LTD filed Form 6-K | TANTECH HOLDINGS LTD filed Form 6-K. |