J-Star Holding (YMAT) appoints Sam Van CEO as Chiang stays Chair

Rhea-AI Filing Summary

J-Star Holding Co., Ltd. reported a leadership change, with Mr. Jing-Bin Chiang resigning as Chief Executive Officer effective October 1, 2025. He will continue to serve as Chairman of the Board, keeping him involved in the company’s strategic direction.

On the same date, the board appointed Sam Van as the new Chief Executive Officer. Van brings extensive capital markets and advisory experience, including senior roles at Freedom Holding Corp’s U.S. markets division, the New York Stock Exchange, and Deltec Investment Adviser Limited, as well as multiple board positions at other companies.

J-Star entered into an employment agreement with Van dated September 15, 2025, which is filed as Exhibit 10.1, and also issued a press release about his appointment, filed as Exhibit 99.1.

Insights

Corporate governance analyst

J-Star shifts day-to-day leadership while retaining board continuity.

The company is transitioning operational leadership from long-time leader Jing-Bin Chiang to Sam Van as Chief Executive Officer, effective October 1, 2025. Chiang remains Chairman, which helps preserve continuity over strategy and oversight despite the CEO change.

Van’s background spans advisory, asset management, and exchange regulation, including senior roles at Freedom U.S. Markets, the New York Stock Exchange, and Deltec Investment Adviser Limited. His multiple directorships suggest broad governance and capital markets experience, which may shape how J-Star approaches financing and growth.

The agreement with Van, dated September 15, 2025 and filed as Exhibit 10.1, will define his compensation and incentives. Future disclosures in company filings may clarify how his appointment influences strategic priorities and any performance targets set by the board.

Form 6-K: How Foreign Companies Report to the SEC →

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 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 September 2025

Commission File Number: 001-42767

J-Star Holding Co., Ltd.

(Registrant’s Name)

7/F-1, No. 633, Sec. 2, Taiwan Blvd.,

Xitun District, Taichung City 407,

Taiwan (R.O.C.)

(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 ☐

Departure of Certain Officers; Appointment of Certain Officers

On October 1, 2025, Mr. Jing-Bin Chiang (“Mr. Chiang”) resigned as the Chief Executive Officer of J-Star Holding Co., Ltd (the “Company” or “J-Star”), effective immediately. Mr. Chiang will remain as the Chairman of the Board of Directors.

On October 1, 2025, Mr. Sam Van (“Mr. Van”) was appointed as the Chief Executive Officer of the Company.

The biography for Mr. Van is set forth below:

Sam Van is our Chief Executive Officer of the Company. Since September 2025, Mr. Van has been serving as the Director of Picard Medical, Inc. Mr. Van has been the founder and CEO of SRO Partners since June, 2024. He served as the Head of Advisory Services and Senior Vice President for Freedom U.S. Markets, a dividing of Freedom Holding Corp (Nasdaq: FRHC) from October 2023 to May 2024,and as president and a director of Deltec Investment Adviser Limited from March 2017 to September 2023. Earlier in his career, Mr. Van held senior roles at the New York Stock Exchange, including Director of International Listings, where he originated over 60 listings, and as a Senior Examiner in NYSE Regulation. He has also served as a director and as audit committee chair and a member of the nominating committee of Reed’s Inc. (OTC: REED) since October 2024, as a director of Relm Insurance Limited (Bermuda) since January 2019 and as a director for Phoenix Motor, Inc. from June 2022 to May 2024. He also serves as a Senior Board Advisor at RKtech, a prominent international software company in Vietnam. Mr. Van began his career as an examiner with FINRA. He holds an MBA from Cornell University’s Johnson School of Business and a BS in Finance from St. John’s University.

Mr. Van has entered into an employment agreement with the Company, which is filed herewith as Exhibits 10.1, should be reviewed in its entirety for additional information.

A copy of the Company’s press release announcing Mr. Van’s appointment is attached hereto as Exhibit 99.1.

The foregoing description of the Agreement does not purport to be complete and is qualified in its entirety by reference to the full text actual Agreement, which is attached as Exhibit 10.1 to this Current Report and incorporated herein by reference.

Financial Statements and Exhibits.

The following exhibits are being filed herewith:

Exhibit No.		Description
10.1		Employment Agreement between the Registrant and Mr. Van dated September 15, 2025.
99.1		Press release issued on September 22, 2025

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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.

	J-Star Holding Co., Ltd.
	By:	/s/ Jing-Bin Chiang
	Name:	Jing-Bin Chiang
	Title:	Chief Executive Officer
Date: September 22, 2025

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FAQ

What leadership change did J-Star Holding Co., Ltd. (YMAT) announce in this 6-K?

J-Star announced a CEO transition. Jing-Bin Chiang resigned as Chief Executive Officer effective October 1, 2025, while remaining Chairman of the Board. Sam Van was appointed as the new CEO on the same date, providing continuity with refreshed operational leadership.

Will Jing-Bin Chiang remain involved with J-Star Holding Co., Ltd. (YMAT) after resigning as CEO?

Yes, Chiang remains Chairman of the Board. Although he resigned as Chief Executive Officer effective October 1, 2025, he continues as Chairman, allowing him to stay engaged in high-level oversight and strategic decision-making at J-Star Holding Co., Ltd.

Who is the new CEO of J-Star Holding Co., Ltd. (YMAT) and when did he assume the role?

Sam Van was appointed Chief Executive Officer. He became CEO of J-Star Holding Co., Ltd. effective October 1, 2025. His background includes senior roles at Freedom U.S. Markets, the New York Stock Exchange, Deltec Investment Adviser Limited, and multiple corporate directorships.

What prior experience does J-Star Holding Co., Ltd. (YMAT) CEO Sam Van have?

Sam Van brings extensive capital markets experience. He has served as founder and CEO of SRO Partners, Head of Advisory Services at Freedom U.S. Markets, president and director of Deltec Investment Adviser Limited, held senior NYSE roles, and sits on several corporate boards.

Did J-Star Holding Co., Ltd. (YMAT) sign an employment agreement with new CEO Sam Van?

Yes, J-Star entered into an employment agreement. The agreement between the company and Sam Van is dated September 15, 2025 and filed as Exhibit 10.1. It sets out key terms of his employment and is incorporated by reference in the report.

How did J-Star Holding Co., Ltd. (YMAT) communicate the appointment of CEO Sam Van?

The company issued a press release. J-Star attached a press release announcing Sam Van’s appointment as Chief Executive Officer as Exhibit 99.1. This press release accompanies the employment agreement, which is filed as Exhibit 10.1 in the same report.