Welcome to our dedicated page for Tantech Holdings SEC filings (Ticker: TANH), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
Tantech Holdings Ltd. filings document foreign private issuer reports for a British Virgin Islands company with Class A common shares listed under TANH. Recent Form 6-K disclosures cover registered direct offerings, private placements, warrant issuances, at-the-market sales arrangements, promissory notes, note exchanges for common shares, and the use of offering proceeds for working capital and general corporate purposes.
The filing record also documents Nasdaq minimum-bid-price compliance notices, shareholder meeting materials, and amendments to the company's memorandum and articles of association. Those governance disclosures include the reclassification of common shares into Class A and Class B shares, voting-right differences, BVI corporate filing matters, and related capital-structure changes.
Tantech Holdings Ltd entered into six exchange agreements with Streeterville Capital, LLC between October 28, 2025 and March 17, 2026. Under each agreement, portions of a $2,160,000 August 2024 promissory note were partitioned into new notes and exchanged for Class A common shares.
Individual exchanges ranged from $50,000 to $97,000 in principal, for consideration between 73,518 and 77,229 Class A common shares per agreement. The share issuances relied on the Section 3(a)(9) exemption from Securities Act registration and were documented using an exchange agreement form dated March 17, 2026.
TANTECH HOLDINGS LTD director Zhang Yefang has filed an initial ownership report showing indirect holdings of Class B common shares. The filing lists 1,142 Class B shares held through TANBSOK GROUP LTD, with Ms. Zhang as the sole shareholder of that entity.
According to the disclosure, she has sole power to vote and dispose of the securities held by TANBSOK GROUP LTD. The filing does not report any new purchase or sale, but establishes her beneficial ownership position in these Class B shares.
Tantech Holdings Ltd submitted a Form 6-K as a foreign private issuer to provide investors with an updated version of its core corporate governing documents. The filing furnishes an Amended and Restated Memorandum and Articles of Association, which is attached as Exhibit 3.1 and incorporated by reference. This document sets out the company’s foundational rules, such as its corporate structure and internal governance framework, but the filing itself does not present operating results or financial data.
Tantech Holdings Ltd submitted a Form 6-K as a foreign private issuer to provide materials for its 2025 annual shareholder meeting. The filing furnishes a notice of annual meeting of shareholders and proxy statement, along with a proxy card, so shareholders can review proposals and vote their shares.
Tantech Holdings Ltd announced a private placement under a Purchase Agreement, selling 3,614,464 units at $1.66 per unit. Each unit includes one common share, three Series C warrants (exercise price $1.66) and three Series D warrants (exercise price $1.83). The warrants are exercisable immediately and expire three years from issuance, with standard anti‑dilution adjustments for events like share combinations.
The securities were offered under Section 4(a)(2)/Reg D exemptions and were not registered at issuance. The company agreed in a registration rights agreement to file a resale registration statement for the warrants and underlying shares within 60 days of closing, seek effectiveness within 120 days if fully reviewed, and keep it effective until holders no longer own the covered securities.
Tantech engaged Aegis Capital Corp. as exclusive financial advisor for the transaction, agreeing to a 4.0% cash fee on gross proceeds and up to $100,000 for legal counsel expenses. No placement agent was used for the private placement.
Tantech Holdings (TANH) entered a financing and completed share exchanges. The company sold a promissory note with an original principal of $3,230,000 to Streeterville Capital for $3,000,000 in gross proceeds. The note bears 7% annual interest, matures 12 months after the purchase price date, includes a $210,000 original issue discount and $20,000 in fees, and may be prepaid at 105% of the elected balance.
Streeterville can require cash redemptions of up to $750,000 per month starting six months after funding. Covenants require SEC filing compliance, maintaining a NASDAQ or NYSE listing, and prohibit certain “Restricted Issuances” without Streeterville’s consent. Trigger Events can increase the outstanding balance by up to 25%, and an Event of Default allows acceleration and interest up to 15% per year, subject to law. Streeterville also has the right to participate in up to 30% of future convertible debt financings.
Separately, between October 2 and 15, 2025, Tantech exchanged five partitioned notes (from an August 1, 2024 note) for common shares, including $100,000 for 71,225 shares and $110,000 for 74,728 shares, under Section 3(a)(9).
Tantech Holdings Ltd reports several exchanges of debt for equity with a note holder. The company agreed to convert $100,000.00 aggregate principal amount of a note into 62,189 common shares under an exchange agreement dated August 1, 2025, another $100,000.00 into 62,003 common shares under an agreement dated July 2, 2025, and a further $100,000.00 into 43,554 common shares under an agreement dated March 3, 2025. These issuances relied on the exemption from registration provided by Section 3(a)(9) of the Securities Act. The exchange agreements are summarized and are substantially in the form of an agreement with Streeterville Capital, LLC dated September 23, 2025, which is filed as Exhibit 10.1.
Tantech Holdings Ltd. amended its annual report to disclose several material corporate and financial events affecting liquidity, capital structure and operations. The Group held approximately $35.0 million cash in banks at December 31, 2024, and recorded a $1,008,290 gain on the disposition of Tantech Charcoal while recording a $2,023,033 loss on the disposition of USCNHK.
The filing details multiple financings and convertible notes, including a June 2023 note with a 7% coupon, conversion mechanics with a $1.20 floor, subsequent exchanges and partial conversions, and an April 2024 unit offering that raised aggregate gross proceeds of $21,000,000. The Group also transferred financing receivables as part of a transaction settling $46.0 million of a larger consideration tied to Xintong, with additional tranches and cash payments due by September 30, 2025.
Tantech Holdings Ltd. amended its annual report to disclose several material corporate and financial events affecting liquidity, capital structure and operations. The Group held approximately $35.0 million cash in banks at December 31, 2024, and recorded a $1,008,290 gain on the disposition of Tantech Charcoal while recording a $2,023,033 loss on the disposition of USCNHK.
The filing details multiple financings and convertible notes, including a June 2023 note with a 7% coupon, conversion mechanics with a $1.20 floor, subsequent exchanges and partial conversions, and an April 2024 unit offering that raised aggregate gross proceeds of $21,000,000. The Group also transferred financing receivables as part of a transaction settling $46.0 million of a larger consideration tied to Xintong, with additional tranches and cash payments due by September 30, 2025.