Tantech Holdings Ltd SEC filings TANH
Tantech Holdings Ltd has 294 filings in SEC EDGAR's recent list, going back to Sep 30, 2013. Its latest annual report, Form 20-F, was filed on May 14, 2026 for the period ended Dec 31, 2025. The most recent current report (Form 6-K) was filed on Oct 2, 2026. The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 20-F | Annual report (foreign issuer) | May 14, 2026 | Dec 31, 2025 |
| 20-F/A | Amended annual report (foreign issuer) | Sep 18, 2025 | Dec 31, 2024 |
| 20-F | Annual report (foreign issuer) | May 15, 2025 | Dec 31, 2024 |
| 20-F | Annual report (foreign issuer) | Jun 11, 2024 | Dec 31, 2023 |
| 20-F | Annual report (foreign issuer) | May 1, 2023 | Dec 31, 2022 |
| 20-F/A | Amended annual report (foreign issuer) | Jan 17, 2023 | Dec 31, 2021 |
| 20-F/A | Amended annual report (foreign issuer) | Dec 23, 2022 | Dec 31, 2021 |
| 20-F | Annual report (foreign issuer) | Jul 18, 2022 | Dec 31, 2021 |
| 20-F | Annual report (foreign issuer) | Apr 27, 2021 | Dec 31, 2020 |
| 20-F/A | Amended annual report (foreign issuer) | Jul 6, 2020 | Dec 31, 2019 |
| 20-F | Annual report (foreign issuer) | Jun 30, 2020 | Dec 31, 2019 |
| 20-F | Annual report (foreign issuer) | May 15, 2019 | Dec 31, 2018 |
| 20-F | Annual report (foreign issuer) | May 11, 2018 | Dec 31, 2017 |
| 20-F | Annual report (foreign issuer) | May 1, 2017 | Dec 31, 2016 |
| 20-F/A | Amended annual report (foreign issuer) | Dec 21, 2016 | Dec 31, 2015 |
| 20-F/A | Amended annual report (foreign issuer) | Nov 28, 2016 | Dec 31, 2015 |
| 20-F/A | Amended annual report (foreign issuer) | Oct 28, 2016 | Dec 31, 2015 |
| 20-F | Annual report (foreign issuer) | Apr 29, 2016 | Dec 31, 2015 |
| 20-F | Annual report (foreign issuer) | Apr 30, 2015 | Dec 31, 2014 |
Showing 19 filings. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
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Company profile
- Industry
- Industrial Organic Chemicals (SIC 2860)
- Listed as
- TANH (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- Virgin Islands, British
- Headquarters
- Zhejiang, China
- SEC filer status
- Non-accelerated filer
- SEC CIK
- 1588084
Other Industrial Organic Chemicals companies
Source: SEC EDGAR filings. This is company-reported data, not investment advice.