In 1990, Kingtronics established its first factory to produce trimming potentiometers. In 1999, Kingtronics built a new factory in Zhao Qing, Guangdong. Now, with around 850 workers, Kingtronics produces trimming potentiometers, aluminum electrolytic capacitors (snap-in, SMD, radial type), dipped and SMD tantalum capacitors, radial and axial multilayer ceramic capacitors, diodes, transistors, and bridge rectifiers. All of Kingtronics' products are RoHS compliant and meet Reach standards.