TAICHUNG CITY, Taiwan, July 31, 2025 (GLOBE NEWSWIRE) -- J-Star Holding Co., Ltd. (“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 the closing of its previously announced initial public offering of an aggregate 1,250,000 ordinary shares of the Company (the “Offering”) at a price ...