Siward Crystal Technology Co., Ltd. engages in the manufacturing of crystal and oscillators. Its products range from synthetic quartz to module. The company offers product mix, such as tuning fork, crystals, X'tal series, OSC series, TCXO series, VCXO series and VCTCXO series. It products are widely used in Mobile Communication?Tablet PC?GPS?Computer Clocks?DSC and AV Machine industry. Siward Crystal Technology was founded by Tseng Ying Tang on January 26, 1988 and is headquartered in Taichung, Taiwan.