Ya Yuan Zhu

Changzhou Tonghui Electronic Co., Ltd. engages in the manufacture, research and development of electronic measurement instruments. Its products include electronic component parameter test instrument, winding component test instrument, cable harness test instrument, electrical safety test instrument, resistance test instrument, power electronic testing instrument, data acquisition/recorder, digit multimeter, and other instruments, as well as accessories and software products. The company was founded on April 29, 1994 and is headquartered in Changzhou, China.

Terrence Energy Co., Ltd. engages in the research and development, production, and sale of natural gas gathering systems. Its products include wellhead gathering and transportation skid-mounted equipment, city gas transmission and distribution equipment, gas turbine power generation supporting station equipment, valves, intelligent monitoring type gas pressure regulating devices, and remote pressure flow control systems. The company was founded on January 12, 1997 and is headquartered in Changzhou, China.