Chunghwa Precision Test Tech. Co., Ltd., together with its subsidiaries, engages in the testing of semiconductor components in Taiwan and internationally. The company is involved in the design, processing, assembly, production, and sale of printed circuit boards and related consultation services; and markets electronic products. It also offers probe cards for use in wafer testing, as well as to examine wafer yields after production; load boards that are interface for yield testing after IC packaging during the back-end process of semiconductor manufacturing; and probing needles, which transmit signals to the substrate and the probe cards. In addition, the company maintains and sells electronic parts and machinery processed products; invests in, retails, and wholesales electronic materials; manufactures smart equipment; sells smart factory software and hardware system integration; and provides technical consulting services. Chunghwa Precision Test Tech. Co., Ltd. was incorporated in 2005 and is based in Taoyuan City, Taiwan.