YMAT

6-K - J-Star Holding Co., Ltd. (0001875016) (Filer)

TAICHUNG CITY, Taiwan, April 01, 2026 (GLOBE NEWSWIRE) -- J-Star Holding Co., Ltd. (NASDAQ:YMAT) ("J-Star" or the "Company"), a leading provider of innovative carbon fiber and composite solutions serving diverse applications including personal sports equipment, healthcare products, automobile parts, resin systems, and research and development services, today announced that Jonathan Chiang has been reappointed Chief Executive Officer, effective March 31, 2026. Mr. Chiang succeeds Sam Van, who will continue to support the Company as an advisor to the Board and management team. The Board of Directors determined that Mr. Chiang's return as CEO will provide experienced leadership and continuit

3 - J-Star Holding Co., Ltd. (0001875016) (Issuer)

3 - J-Star Holding Co., Ltd. (0001875016) (Issuer)

3 - J-Star Holding Co., Ltd. (0001875016) (Issuer)

3 - J-Star Holding Co., Ltd. (0001875016) (Issuer)

3 - J-Star Holding Co., Ltd. (0001875016) (Issuer)

3 - J-Star Holding Co., Ltd. (0001875016) (Issuer)

3 - J-Star Holding Co., Ltd. (0001875016) (Issuer)

6-K - J-Star Holding Co., Ltd. (0001875016) (Filer)

TAICHUNG CITY, Taiwan, Feb. 23, 2026 (GLOBE NEWSWIRE) -- J-Star Holding Co., Ltd. (NASDAQ:YMAT) ("J-Star" or the "Company"), a leading provider of innovative carbon fiber and composite solutions serving diverse applications including personal sports equipment, healthcare products, automobile parts, resin systems, and research and development services, today announced that it has entered into an exclusive global distribution agreement with Patriot Green Energy Technology ("PSSB"). PSSB is a leading industry developer and manufacturer of next-generation solid state battery technology for high-performance and defense applications with a large minority ownership by Industrial Technology Resea

6-K - J-Star Holding Co., Ltd. (0001875016) (Filer)

TAICHUNG CITY, Taiwan, Jan. 22, 2026 (GLOBE NEWSWIRE) -- J-Star Holding Co., Ltd. (NASDAQ:YMAT) ("J-Star" or the "Company"), a leading provider of innovative carbon fiber and composite solutions serving diverse applications including personal sports equipment, healthcare products, automobile parts, resin systems, and research and development services, today announced that the Company has filed formal complaints against PwC with the American Institute of Certified Public Accountants ("AICPA") and the Public Company Accounting Oversight Board ("PCAOB") regarding PwC's misrepresentations during the Company's NASDAQ IPO process. The AICPA complaint is currently under investigation. As the Co

6-K - J-Star Holding Co., Ltd. (0001875016) (Filer)

TAICHUNG CITY, Taiwan, Jan. 14, 2026 (GLOBE NEWSWIRE) -- J-Star Holding Co., Ltd. (NASDAQ:YMAT) ("J-Star" or the "Company"), a leading provider of innovative carbon fiber and composite solutions serving diverse applications including personal sports equipment, healthcare products, automobile parts, resin systems, and research and development services, today announced that the Company has signed a memorandum of understanding, or MOU, with Patriot Technology Responsibilities (PSSB), a provider of industrial solutions including a proprietary and patented, next-generation solid-state battery. J-Star intends to work with PSSB to utilize high-ion conductivity resins to develop advanced, lightwe

S-8 - J-Star Holding Co., Ltd. (0001875016) (Filer)

8-A12B/A - J-Star Holding Co., Ltd. (0001875016) (Filer)

6-K - J-Star Holding Co., Ltd. (0001875016) (Filer)

TAICHUNG CITY, Taiwan, Jan. 06, 2026 (GLOBE NEWSWIRE) -- J-Star Holding Co., Ltd. (NASDAQ:YMAT) ("J-Star" or the "Company"), a leading provider of innovative carbon fiber and composite solutions serving diverse applications including personal sports equipment, healthcare products, automobile parts, resin systems, and research and development services, today announced a strategic plan to substantially exit its China operations and reallocate resources toward expansion in the United States, automation-driven manufacturing, and innovation-led growth. This decision reflects J-Star's proactive response to increasing geopolitical uncertainty, evolving regulatory and policy dynamics in China, an

6-K - J-Star Holding Co., Ltd. (0001875016) (Filer)

TAICHUNG CITY, Taiwan, Dec. 23, 2025 (GLOBE NEWSWIRE) -- J-Star Holding Co., Ltd. (NASDAQ:YMAT) ("J-Star" or the "Company"), a leading provider of innovative carbon fiber and composite solutions serving diverse applications including personal sports equipment, healthcare products, automobile parts, resin systems, and research and development services, today announced that its premium urban mobility brand, LITZMO, has unveiled what is believed to be one of the world's first carbon fiber fat-tire electric assist bicycles, ER‑01. The ER-01 joins a growing line-up of LITZMO e-bikes, including the EM-05, EM-05 Pro, EM-05 EVO and EV-01. Designed to redefine urban mobility, ER‑01 combines lightw

6-K - J-Star Holding Co., Ltd. (0001875016) (Filer)

TAICHUNG CITY, Taiwan, Dec. 18, 2025 (GLOBE NEWSWIRE) -- J-Star Holding Co., Ltd. (NASDAQ:YMAT) ("J-Star" or the "Company"), a leading provider of innovative carbon fiber and composite solutions across a wide range of applications including personal sports equipment, healthcare products, automobile parts, resin systems, and research and development services, today announced its unaudited financial results for the six months ended June 30, 2025 ("First Half 2025"). Financial and Business Highlights Revenue increased 30.7% to $10.6 million compared to $8.1 million for the same period last yearGross margin of 26.9% compared to 30.2% for the same period last yearDelivered net operating profi

6-K - J-Star Holding Co., Ltd. (0001875016) (Filer)

6-K - J-Star Holding Co., Ltd. (0001875016) (Filer)