J-Star Holding Co Ltd is a Taiwan-based company primarily engaged in the development and commercialization of carbon fiber composite materials made from carbon fiber and resin, as well as resin system technologies. The Company designs and manufactures a variety of lightweight, high-performance carbon fiber composite products, including key structural components for electric and sports bicycles, racquets, automotive parts, and healthcare products. The Company primarily focuses on the sports equipment industry and prioritizes the commercialization of its technology in the electric bicycle market. The Company's main businesses include the sale of bicycle parts for sports bicycles and electric bicycles, the sale of racquets for tennis, badminton, squash, and beach tennis, and the sale of other products, primarily including automotive structural components, other sports equipment, and healthcare products.