STOCK TITAN

Tantech Holdings (NASDAQ: TANH) appoints co-CEO, co-CFO and new independent directors

(Neutral)
(Neutral)
Form Type
6-K/A

Rhea-AI Filing Summary

Tantech Holdings Ltd filed an amended report to correct typographical errors in a prior August 5, 2026 disclosure, clarifying director Pi-Hua Liu’s name and a pronoun reference in the description of director Lei Yao’s appointment.

Effective August 2, 2026, directors Weilin Zhang and Hongdao Qian resigned, with the company stating there were no disagreements on operations, policies, or practices. The Board appointed Yongxin Su as a Class III director and Co-Chief Executive Officer, and Pi-Hua Liu as a director and Co-Chief Financial Officer, both serving terms running to the 2027 annual meeting or until successors are elected. Lei Yao was elected an independent director and chair of the nominating committee to complete Mr. Qian’s term expiring at the 2026 annual meeting, and Shipu Huang was elected an independent Class I director with a term to the 2028 annual meeting. The Board determined that Mr. Yao and Mr. Huang meet the independence requirements of Nasdaq Listing Rule 5605(a)(2).

Positive

  • None.

Negative

  • None.
Effective date of board changes August 2, 2026 Date on which all resignations and new director appointments became effective
Lei Yao term expiry 2026 annual meeting of shareholders Independent director and nominating committee chair serving remainder of Hongdao Qian’s term
Yongxin Su term expiry 2027 annual meeting of shareholders Class III director and Co-Chief Executive Officer term end
Pi-Hua Liu term expiry 2027 annual meeting of shareholders Director and Co-Chief Financial Officer serving remainder of Weilin Zhang’s term
Shipu Huang term expiry 2028 annual meeting of shareholders Class I independent director term end
independent director regulatory
"Mr. Hongdao Qian resigned as an independent director and the chair"
An independent director is a member of a company's board of directors who is not involved in the company's day-to-day operations and has no significant relationships with the company that could influence their judgment. Their role is to provide unbiased oversight and ensure the company is managed in the best interests of all shareholders. This helps build trust and confidence among investors by promoting transparency and accountability.
Nasdaq Listing Rule 5605(a)(2) regulatory
"The Board has determined that Mr. Yao satisfies the independence requirements of Nasdaq Listing Rule 5605(a)(2)"
Nasdaq Listing Rule 5605(a)(2) sets the criteria Nasdaq uses to decide whether a company’s board members are independent, listing examples of relationships or ties that would disqualify a director from being considered independent. Investors care because a board with genuinely independent directors acts like an impartial referee overseeing management decisions, reducing conflicts of interest and improving the chance that shareholder interests are protected and corporate decisions are scrutinized effectively.
nominating committee regulatory
"resigned as an independent director and the chair of the nominating committee of the Board"
A nominating committee is a small group of company directors tasked with finding, evaluating and recommending people to serve on the board. Think of it as a hiring panel that chooses the team responsible for guiding the business and holding management accountable. Investors care because the committee’s choices shape the board’s experience, independence and judgment, which directly affect strategy, oversight, leadership succession and the protection of shareholder interests.
Class III director regulatory
"Mr. Su was designated as a Class III director and will serve a term"
A Class III director is a board member placed in one of the numbered groups used by companies with a staggered (or “classified”) board; that director’s seat typically comes up for election in the third year of a three-year rotation. For investors this matters because staggered terms create continuity but also make it harder to replace the whole board quickly, affecting shareholder influence, takeover dynamics and how fast new strategy or accountability can be implemented — like replacing only some players on a sports team each season instead of the whole roster at once.
Form 6-K/A regulatory
"This Amendment No. 1 to Current Report on Form 6-K/A is being filed"
Form 6-K/A is an amended report filed with the U.S. Securities and Exchange Commission by a foreign (non‑U.S.) company to correct or add material information previously sent in a Form 6‑K. It matters to investors because it updates the official public record—think of it as a corrected or expanded page in a company’s disclosure file—so the new or corrected details can affect how investors judge the company’s risks, results or future prospects.

AI-generated analysis. How Rhea-AI works. Not financial advice.

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google
Add on Google
Learn about SEC filing dates

FAQ

What does Tantech Holdings (TANH) change in this amended 6-K/A?

The amendment corrects typographical errors in a prior August 5, 2026 report, fixing director Pi-Hua Liu’s name and a pronoun reference related to Lei Yao’s appointment while leaving all substantive disclosures unchanged.

Which directors resigned from Tantech Holdings (TANH) on August 2, 2026?

On August 2, 2026, Weilin Zhang resigned as director and Hongdao Qian resigned as independent director and nominating committee chair. The company states both resignations were not due to disagreements on operations, policies, or practices.

Who was appointed co-CEO at Tantech Holdings (TANH) on August 2, 2026?

On August 2, 2026, Yongxin Su was elected as a director and Co-Chief Executive Officer. He was designated a Class III director with a term expiring at the 2027 annual meeting of shareholders or until a successor is elected and qualified.

What is the new role of Pi-Hua Liu at Tantech Holdings (TANH)?

Pi-Hua Liu was elected a director and Co-Chief Financial Officer, filling the vacancy from Weilin Zhang’s resignation. She will serve for the remainder of Zhang’s term, scheduled to expire at the 2027 annual meeting of shareholders.

Are the new Tantech Holdings (TANH) directors considered independent under Nasdaq rules?

The Board determined that Lei Yao and Shipu Huang satisfy the independence requirements of Nasdaq Listing Rule 5605(a)(2), qualifying both as independent directors, with Yao also serving as chair of the nominating committee.

How long will the newly appointed independent directors of Tantech Holdings (TANH) serve?

Lei Yao will serve for the remainder of Hongdao Qian’s term, expiring at the 2026 annual meeting, while Shipu Huang, as a Class I director, has a term expiring at the 2028 annual meeting of shareholders.

 

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

 

FORM 6-K/A

 

REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16

UNDER THE SECURITIES EXCHANGE ACT OF 1934

 

For the month of August 2026

 

Commission File Number: 001-36885

 

TANTECH HOLDINGS LTD

(Translation of registrant’s name into English)

 

No. 10 Cen Shan Road, Shuige Industrial Zone

Lishui City, Zhejiang Province

People’s Republic of China 323000 

(Address of principal executive offices)

 

Indicate by check mark whether the registrant files or will file annual reports under cover Form 20-F or Form 40-F.

 

Form 20-F ☒     Form 40-F ☐

 

 

 

 

EXPLANATORY NOTE

 

This Amendment No. 1 to Current Report on Form 6-K/A is being filed to amend the Current Report on Form 6-K of Tantech Holdings Ltd (the “Company”) filed on August 5, 2026 solely to correct certain inadvertent typographical errors. Specifically, the name of Ms. Pi-Hua Liu was incorrectly stated as “Bihua Liu,” and a reference to “her successor” in the description of Mr. Lei Yao’s appointment was corrected to “his successor.” No other changes have been made to the original Form 6-K.

 

Change of Directors

 

Effective August 2, 2026, Mr. Weilin Zhang resigned as a director of the board of directors (the “Board”) of the Company. The resignation of Mr. Zhang was not a result of any disagreement with the Company on any matter related to the operations, policies, or practices of the Company.

 

Effective August 2, 2026, Mr. Hongdao Qian resigned as an independent director and the chair of the nominating committee of the Board of the Company. The resignation of Mr. Qian was not a result of any disagreement with the Company on any matter related to the operations, policies, or practices of the Company.

 

Effective August 2, 2026, Mr. Yongxin Su was elected as a director and the Co-Chief Executive Officer by the remaining members of the Board. Mr. Su was designated as a Class III director and will serve a term expiring at the 2027 annual meeting of shareholders or until his successor is duly elected and qualified.

 

Effective August 2, 2026, Ms. Pi-Hua Liu was elected as a director and the Co-Chief Financial Officer by the remaining members of the Board to fill the vacancy resulting from the resignation of Mr. Zhang. Ms. Liu will serve for the remainder of Mr. Zhang's term, which is scheduled to expire at the Company's 2027 annual meeting of shareholders, or until her successor is duly elected and qualified.

 

Effective August 2, 2026, Mr. Lei Yao was elected as an independent director and the chair of the nominating committee of the Board of the Company by the remaining members of the Board to fill the vacancy resulting from the resignation of Mr. Qian. Mr. Yao will serve for the remainder of Mr. Qian's term, which is scheduled to expire at the Company's 2026 annual meeting of shareholders, or until his successor is duly elected and qualified. The Board has determined that Mr. Yao satisfies the independence requirements of Nasdaq Listing Rule 5605(a)(2) and qualifies as an independent director.

 

Effective August 2, 2026, Mr. Shipu Huang was elected as an independent director by the remaining members of the Board. Mr. Huang was designated as a Class I director and will serve a term expiring at the 2028 annual meeting of shareholders or until his successor is duly elected and qualified. The Board has determined that Mr. Huang satisfies the independence requirements of Nasdaq Listing Rule 5605(a)(2) and qualifies as an independent director.

 

Mr. Yongxin Su is an experienced technology professional specializing in artificial intelligence, high-performance computing, and intelligent computing platform development. Since August 2023, he has been serving as the Technical Director of Shenzhen Huazi Supercomputing Technology Co., Ltd. From July 2020 to July 2023, Mr. Su served as an Algorithm Engineer at Shenzhen Jiexi Technology Co., Ltd., where he was responsible for the company's technology R&D system development and product technology planning. Mr. Su holds a bachelor’s degree in Information Security from Tianjin University of Technology.

 

Ms. Pi-Hua Liu is a finance professional with extensive experience in corporate financial management spanning over two decades. She currently serves as the Head of Dalun Enterprise, a position she has held since February 2026. From October 2022 to August 2024, Ms. Liu served as the Chief Financial Officer of Yingke Co., Ltd. Prior to that, from October 1997 to September 2022, she served as the Chief Financial Officer of Santongjin Co., Ltd. Ms. Liu holds a bachelor’s degree in Accounting from Chongyou College of Business Management.

 

Mr. Lei Yao is a seasoned financial services professional with extensive experience in banking and business management. He currently serves as the Chairman of Weihai Qianhao Ocean Technology Co., Ltd., a position he has held since September 2025. Since May 2021, Mr. Yao has also been serving as a Director and Chief Executive Officer of Dalian GuangXuYuan Sea Delicacies Co., Ltd. From June 2014 to November 2022, he served as a Senior Client Manager at the Agricultural Bank of China Zhongshan Sub-branch. From February 2009 to June 2014, Mr. Yao served as Branch President of the Agricultural Bank of China City Plaza Sub-branch. From September 2006 to February 2009, he served as Branch President of the Agricultural Bank of China Dalian Tianjin Street Sub-branch. Mr. Yao holds an associate degree in Finance from the Agricultural Bank of China Financial Cadre Management Institute.

 

Mr. Huang Shipu is a technology management professional with experience in IT services and corporate operations. From January 2020 to March 2026, he served as the General Manager of Chengdu Dinggu Technology Co., Ltd. In this position, he was responsible for the company's strategic planning, daily operations, and team management, driving business expansion in the IT services sector and improving operational efficiency. Mr. Huang holds an associate's degree in Engineering from Chongqing Information Technology College.

 

 
2

 

 

SIGNATURE

 

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.

 

 

Tantech Holdings Ltd

 

 

 

 

 

Date: August 7, 2026

By:

/s/ Zheyuan Liu

 

 

 

Zheyuan Liu

 

 

 

Chief Executive Officer

 

 

 
3