Chia Chang Co. Ltd. engages in the design and manufacture of precision molds for optoelectronics, information technology and communication application industry. Its business activities include the stamping of metal components and manufacture, processing & trading of metal spare parts and molds. Its products include optical information electronic components, metal stamping bezels, metal stamping back covers, inverters, shielding, lamp covers, plates, and brackets. The company was founded by Tsang Hai Chen on September 9, 1985 and is headquartered in Taoyuan, Taiwan.