tcst tech co., ltd. is an advanced manufacturer of high technology components. Our headquarters is located in Zhongshan District of Taipei City, and our Plant I&II were respectively set up in Shanshang Town and Xinshi Town of Tainan County. Our main products are quartz components, such as quartz crystals, quartz filters and quartz resonators and LED precision ceramic substrates, lamp modules and the packaging of applied products. In addition, we are the first professional designer and manufacturer of quartz crystals in Taiwan. Our main objective is "to pursue customer satisfaction". Our never-ending efforts are to enhance product quality, reduce production cost and shorten product delivery time. Till now, we have built a good relationship with our customers who are the leading and large manufacturers both at home and abroad and received their trust and recognition. As we look