Chao-Yii Industrial Co., Ltd., specializes in aluminum alloy casting and metal processing. Headquartered in Anding District, Tainan City, the company offers a wide range of services including aluminum alloy casting, precision machining, welding, and liquid coating. Its clients span industries such as semiconductors, optoelectronics, and precision equipment, including major international corporations like Japan’s Sumitomo Heavy Industries, U.S.-based Viasat, and national research institutes. Chao-Yii also independently designs and manufactures key components for film-blowing machines, such as air rings and die heads, widely recognized for their quality and reliability.