U.S. SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, DC 20549
FORM 6-K
REPORT OF FOREIGN PRIVATE ISSUER
PURSUANT TO RULE 13a-16 OR 15d-16 UNDER
THE SECURITIES EXCHANGE ACT OF 1934
For the month of December 2025
Commission File Number: 001-36885
| Tantech Holdings Ltd |
| (Registrant’s name) |
No. 10 Cen Shan Road, Shuige Industrial Zone
Lishui City, Zhejiang Province 323000
+86-578-226-2305
(Address of principal executive offices)
Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.
Form 20-F ☒ Form 40-F ☐
Explanatory Note:
The Registrant is filing this Report on Form 6-K to provide its proxy statement for its 2025 annual shareholder meeting.
| Exhibits No. |
| Description |
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| Notice of Annual Meeting of Shareholders and Proxy Statement | |
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| 2 |
SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.
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| Tantech Holdings Ltd |
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| Date: December 11, 2025 | By: | /s/ Zheyuan Liu |
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| Name: | Zheyuan Liu |
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| Title: | Chief Executive Officer |
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| 3 |