TANH
Tantech Holdings·NASDAQ
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TANH Filings
Filing Date
Form Description
Form Type
2025-10-24
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16]
Key Events
2025-10-24 · Key Events
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16]
2025-10-17
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16]
Key Events
2025-10-17 · Key Events
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16]
2025-09-24
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16]
Key Events
2025-09-24 · Key Events
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16]
2025-09-18
Form 20-F/A - Annual and transition report of foreign private issuers [Sections 13 or 15(d)]: [Amend]
Financials
2025-09-18 · Financials
Form 20-F/A - Annual and transition report of foreign private issuers [Sections 13 or 15(d)]: [Amend]
2025-06-03
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16]
Key Events
2025-06-03 · Key Events
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16]
2025-05-15
Form 20-F - Annual and transition report of foreign private issuers [Sections 13 or 15(d)]
Financials
2025-05-15 · Financials
Form 20-F - Annual and transition report of foreign private issuers [Sections 13 or 15(d)]
2025-05-01
Form NT 20-F - Notification of inability to timely file Form 20-F
2025-05-01 ·
Form NT 20-F - Notification of inability to timely file Form 20-F
2025-04-21
Form SCHEDULE 13G - Statement of Beneficial Ownership by Certain Investors
2025-04-21 ·
Form SCHEDULE 13G - Statement of Beneficial Ownership by Certain Investors
2025-03-03
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16]
Key Events
2025-03-03 · Key Events
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16]
2025-02-10
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16]
Key Events
2025-02-10 · Key Events
Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16]
