Topkey Corporation produces, processes, sells, and trades in sporting products worldwide. The company operates through Sporting Products, Aviation and Medical Products, and Other segments. It offers glass and carbon fiber products, composite materials, glass products, vehicle and composite components, water gages, and HRNTs, as well as helmets. The company also provides agency services; designs, develops, manufactures, and sells precision molds; processes plastic and rubber products, lenses, and building insulations, as well as engages in international investment and trade activities. In addition, it provides medical products; thermoplastic resin and fiber reinforced thermoplastic products; aviation composite components; bike knee and neck brace components; tennis rackets; and carbon bicycle frame sets and other accessories. Topkey Corporation was incorporated in 1980 and is based in Taichung, Taiwan.