Company facts
- Industry
- Industrial Organic Chemicals
- Headquarters
- Zhejiang
- Most recent report
- 6-K, filed Sep 24, 2026
- Filings on record
- 293 filings
- On EDGAR
- CIK 1588084
- Fiscal year ends
- December
- Filer status
- Non-accelerated filer
Financials 8 of 143
- 6-K Report a foreign issuer made public elsewhere Sep 24, 2026
- 6-K Report a foreign issuer made public elsewhere Sep 1, 2026
- 6-K Report a foreign issuer made public elsewhere Aug 19, 2026
- 6-K Report a foreign issuer made public elsewhere Aug 6, 2026
- 6-K Report a foreign issuer made public elsewhere Aug 4, 2026
- 20-F Annual report, foreign issuer May 14, 2026
- 6-K Report a foreign issuer made public elsewhere Apr 2, 2026
- 6-K Report a foreign issuer made public elsewhere Mar 31, 2026
Prospectuses and Registrations 8 of 23
- F-3 Jun 9, 2026
- 424B5 Prospectus supplement for an offering Apr 2, 2026
- 424B5 Prospectus supplement for an offering Mar 25, 2026
- 424B3 Prospectus supplement for an offering Jul 26, 2024
- F-1 Registration statement, foreign issuer Jul 12, 2024
- F-3 Aug 30, 2023
- 424B5 Prospectus supplement for an offering Jun 30, 2023
- 424B5 Prospectus supplement for an offering Jun 28, 2023
Ownership 8 of 25
- 3 Insider reported their initial holding Apr 9, 2026
- 3 Insider reported their initial holding Mar 31, 2026
- 3 Insider reported their initial holding Mar 31, 2026
- 3 Insider reported their initial holding Mar 31, 2026
- 3 Insider reported their initial holding Mar 17, 2026
- SCHEDULE 13G Large holder reported a passive stake Apr 21, 2025
- SC 13G/A Large holder reported a passive stake, amended Nov 13, 2024
- SC 13G/A Large holder reported a passive stake, amended Nov 6, 2024
Other 8 of 102
- 6-K/A Report a foreign issuer made public elsewhere, amended Aug 7, 2026
- EFFECT Notice that a registration became effective Jun 17, 2026
- CORRESP Reply to SEC staff Jun 15, 2026
- UPLOAD Comment letter from SEC staff Jun 3, 2026
- DRS Draft registration statement, submitted confidentially Jun 2, 2026
- NT 20-F May 1, 2026
- UPLOAD Comment letter from SEC staff Dec 15, 2025
- 20-F/A Annual report, foreign issuer, amended Sep 18, 2025
Everything here comes from Tantech Holdings Ltd's own filings on SEC EDGAR. The filing list is rechecked every hour.