Founded in 1990, PSA is one of the few passive component manufacturers in China that can supply ceramic powder raw materials and sell laminated ceramic capacitors at the same time, and it is the only manufacturer that has the ability to vertically integrate raw materials from upstream to passive chip components. In 2005, PSA made a strategic alliance with Huaxin Group, and in 2008, it officially merged Hongda Electronics, extending the sales range from dielectric porcelain powder, semiconducting ceramic capacitor tiles, laminated ceramic capacitors, chip resistors to diodes and coils, becoming the only passive component supplier that can provide all special capacitors, inductors and resistors in China.