Tantech Holdings Ltd (TANH) — SEC Filings
Tantech Holdings Ltd (TANH) — 35 SEC filings. Latest: 6-K (Mar 31, 2026). Includes 27 6-K, 2 20-F, 2 SC 13G/A.
View Tantech Holdings Ltd on SEC EDGAR
Overview
Tantech Holdings Ltd (TANH) is a publicly traded company tracked on ReadTheFiling. The most recent enriched filing is a 6-K filed on Mar 31, 2026: Tantech Holdings Ltd. filed a Form 6-K on March 31, 2026, reporting information as a foreign issuer. The filing includes an Exchange Agreement and a Press Release, with the period of report ending on March 31, 2026. The company is located in Lishui City, Zhejiang, China.
Sentiment Summary
Across 35 filings, the sentiment breakdown is: 6 bearish, 28 neutral, 1 mixed. The dominant filing sentiment for Tantech Holdings Ltd is neutral.
Filing Type Overview
Tantech Holdings Ltd (TANH) has filed 27 6-K, 1 424B5, 1 20-F/A, 2 20-F, 2 SC 13G/A, 2 SC 13G with the SEC between Jan 2024 to Mar 2026.
Filings by Year
Recent SEC Filings (35)
Risk Profile
Risk Assessment: Of TANH's 27 recent filings, 4 were flagged as high-risk, 15 as medium-risk, and 8 as low-risk. The overall risk profile suggests moderate risk with a balanced mix of positive and cautionary disclosures.
Key Executives
- Mr. Weilin Zhang
- Wangfeng Yan
- Zheyuan Liu
Industry Context
Tantech Holdings Ltd operates in industries that are subject to evolving foreign investment regulations in China. While currently not facing direct ownership limitations, the dynamic regulatory landscape for foreign companies in China presents ongoing challenges. The company's reliance on PRC subsidiaries means its performance is closely tied to the operational and regulatory environment within mainland China.
Top Tags
foreign-issuer (3) · agreement (3) · annual-report (3) · delisting-risk (3) · sec-filing (3) · divestiture (3) · press-release (2) · capital-raise (2) · shareholder-meeting (2) · warrants (2)
Key Numbers
| Metric | Value | Context |
|---|---|---|
| Proposals Approved | 4 | All submitted proposals were approved by shareholders at the annual meeting. |
| Revenue (H1 2025) | $11.3M | Represents a decrease from the prior year period. |
| Revenue (H1 2024) | $14.2M | Prior period revenue for comparison. |
| Promissory Note Exchange Amount | $625.0K | Amount of the promissory note principal exchanged in September 2025. |
| Original Promissory Note Principal | $2.16M | The initial value of the promissory note issued in August 2024. |
| Outstanding common shares | 1,132,658 | As of the close of the period covered by the annual report, retrospectively adjusted for a one-for-forty share consolidation on February 13, 2025. |
| Fiscal year ended | 2024 | The period covered by the amended annual report on Form 20-F/A. |
| Filing date of 20-F/A | 2025-09-18 | Date the amendment was filed with the SEC. |
| Original filing date of 20-F | 2025-05-15 | Date the initial annual report was filed, which this amendment modifies. |
| Date of SEC Comment Letter | 2025-09-02 | Date the SEC issued comments prompting this 20-F/A amendment. |
| Indirect ownership of Shangchi Automobile | 70% | Tantech's current indirect ownership after dismantling the VIE structure in August 2021. |
| Date VIE structure was dismantled | 2021-08-03 | Date Tantech ceased controlling certain subsidiaries via contractual arrangements. |
| Date of one-for-forty share consolidation | 2025-02-13 | Effective date of the share consolidation that retrospectively adjusted outstanding shares. |
| Date CSRC issued Listing Records Rules | 2023-02-17 | Date China Securities Regulatory Commission issued new rules for overseas listings. |
| Implementation date of Listing Records Rules | 2023-03-31 | Date the CSRC's new overseas listing rules became effective. |
Frequently Asked Questions
What are the latest SEC filings for Tantech Holdings Ltd (TANH)?
Tantech Holdings Ltd has 35 recent SEC filings from Jan 2024 to Mar 2026, including 27 6-K, 2 20-F, 2 SC 13G/A. Each filing includes an AI-generated plain-English summary.
What is the overall sentiment of TANH filings?
Across 35 filings, the sentiment breakdown is: 6 bearish, 28 neutral, 1 mixed. The dominant sentiment is neutral.
Where can I find Tantech Holdings Ltd SEC filings explained simply?
ReadTheFiling provides AI-powered plain-English summaries of all Tantech Holdings Ltd (TANH) SEC filings, including 10-K annual reports, 10-Q quarterly reports, 8-K current reports, and insider trades.
What are the key financial highlights for Tantech Holdings Ltd?
Financial highlights for Tantech Holdings Ltd are available when 10-K or 10-Q filings are enriched with AI analysis. Check back as new filings are processed.
What is the investment thesis for TANH?
The investment thesis for TANH includes bull, base, and bear case scenarios derived from AI analysis of recent SEC filings.
Who are the key executives at Tantech Holdings Ltd?
Key executives identified across Tantech Holdings Ltd's filings include Mr. Weilin Zhang, Wangfeng Yan, Zheyuan Liu.
What are the main risk factors for Tantech Holdings Ltd stock?
Of TANH's 27 assessed filings, 4 were flagged high-risk, 15 medium-risk, and 8 low-risk.
What are recent predictions and forward guidance from Tantech Holdings Ltd?
Forward guidance and predictions for Tantech Holdings Ltd are extracted from SEC filings as they are enriched.