碳博士控股 2025年年度报告和过渡报告

FORM20-F/A(Amendment No. 1) ☐REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR ☒ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE FISCAL YEAR ENDEDDECEMBER 31, 2024 OR TRANSITIONAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 ☐SHELL COMPANY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of event requiring thisshell company report __________ Commission file number001-36885 TANTECH HOLDINGS LTD (Exact name of registrant as specified in its charter) Not Applicable(Translation of Registrant’s Name into English) Securities registered or to be registered pursuant to Section 12(b) of the Act. Securities registered or to be registered pursuant to Section 12(g) of the Act: None(Title of Class) Securities for which there is a reporting obligation pursuant to Section 15(d) of the Act: Common Shares(Title of Class) The number of outstanding shares of each of the issuer’s classes of capital or common share as of the close of the period covered by the annual report was:1,132,658* (* Retrospectively adjusted to reflect the one-for-forty share consolidation effected on February 13, 2025) Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.Yes☐No☒ If this report is an annual or transition report, indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or 15(d) of theSecurities Exchange Act of 1934.Yes☐No☒ Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during thepreceding 12 months(or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for thepast 90 days.Yes☒No☐ Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 ofRegulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).Yes☒No☐ Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or an emerging growth company. Seedefinition of “large accelerated filer,” “accelerated filer,” and “emerging growth company” in Rule 12b-2 of the Exchange Act. If an emerging growth company that prepares its financial statements in accordance with U.S. GAAP, indicate by check mark if the registrant has elected not touse the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act †The term “new or revised financial accounting standard” refers to any update issued by the Financial Accounting Standards Board to its Accounting StandardsCodification after April 5, 2012. Indicate by check mark whether the registrant has filed a report on and attestation to its management’s assessment of the effectiveness of its internal control overfinancial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its auditreport.☐ If securities are registered pursuant to Section 12(b) of the Act, indicate by check mark whether the financial statements of the registrant included in the filingreflect the correction of an error to previously issued financial statements.☐ Indicate by check mark whether any of those error corrections are restatements that required a recovery analysis of incentive based compensation received by anyof the registrant’s executive officers during the relevant recovery period pursuant to §240.10D-1(b).☐ Indicate by check mark which basis of accounting the registrant has used to prepare the financial statements included in this filing: U.S. GAAP☒International Financial Reporting Standards as issued by the International Accounting Standards Board☐Other☐ If “Other” has been checked in response to the previous question, indicate by check mark which financial statement item the registrant has elected to follow.☐Item 17☐Item 18 If this is an annual report, indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).Yes☐No☒ Indicate by check mark whether the registrant has filed all documents and reports required to be filed by Sections 12, 13 or 15(d) of the Securities Exchange Act of1934 subsequent to the distribution of securities under a plan confirmed by a court.☐Yes☐No Explanatory Note This Amendment No. 1 on Form 20-F/A (the “Form 20-F/A”) amends the annual report on Form 20-F of Tantech Holdings Ltd (the “Company,” “we” or “our”) forthe fiscal year ended December 31, 2024, originally filed with the U.S. Securities and Exchang