ShunSin Technology Holdings Limited engages in the assembly, testing, and sale of various integrated circuits related to semiconductors in Mainland China, the United States, Taiwan, Malaysia, Singapore, Ireland, and internationally. The company's products include system in package module, including 2G/2.5G/3G/4G front end and power Amplifier (PA), multi-mode multi band power amplifier, WiFi front end, mobile WiFi, and antenna switch modules; passive optical components; optical transceivers; thick film integrated circuit; and MEMS modules and sensors, such as accelerometers, gyroscopes, G-sensors, pressure and gesture sensors, light and proximity sensors, BAW filters, and TOF sensors. It offers engineering services, such as assembly and testing. The company was formerly known as Amtec Holdings Limited and changed its name to ShunSin Technology Holdings Limited in August 2013. The company was incorporated in 2008 and is based in Zhongshan, China. ShunSin Technology Holdings Limited is a subsidiary of Foxconn (Far East) Limited.