TANTECH HOLDINGS LTD Form 6-K: Report of foreign private issuer
Filings on SEC EDGAR, newest first; amendments sit with their base form. Values are as filed.
- 2026-09-24: Form 6-K; Period of report 2026-09-24; Description FORM 6-K; Document tanh_6k.htm.
- 2026-09-01: Form 6-K; Period of report 2026-09-01; Description FORM 6-K; Document tanh_6k.htm.
- 2026-08-19: Form 6-K; Period of report 2026-08-19; Description FORM 6-K; Document tanh_6k.htm.
- 2026-08-07: Form 6-K/A; Period of report 2026-08-07; Description FORM 6-K/A; Document tanh_6ka.htm.
| Filed | Form | Period of report | Description | Document |
|---|---|---|---|---|
| 2026-09-24 | 6-K | 2026-09-24 | FORM 6-K | tanh_6k.htm |
| 2026-09-01 | 6-K | 2026-09-01 | FORM 6-K | tanh_6k.htm |
| 2026-08-19 | 6-K | 2026-08-19 | FORM 6-K | tanh_6k.htm |
| 2026-08-07 | 6-K/A | 2026-08-07 | FORM 6-K/A | tanh_6ka.htm |
| 2026-08-06 | 6-K | 2026-08-05 | FORM 6-K | tanh_6k.htm |
| 2026-08-04 | 6-K | 2026-08-04 | FORM 6-K | tanh_6k.htm |
| 2026-04-02 | 6-K | 2026-04-01 | FORM 6-K | tanh_6k.htm |
| 2026-03-31 | 6-K | 2026-03-31 | FORM 6-K | tanh_6k.htm |
| 2026-03-25 | 6-K | 2026-03-24 | FORM 6-K | tanh_6k.htm |
| 2026-03-23 | 6-K | 2026-03-23 | FORM 6-K | tanh_6k.htm |
| 2026-01-15 | 6-K | 2026-01-15 | FORM 6-K | tanh_6k.htm |