China Zhenhua Electronics Group Yuguang Electric Co.,Ltd(State-run Factory 771), a wholly-owned subsidiary of Zhenhua Technology Co., LTD. (Stock code: 000733), is a professional company specializing in the development, production and sales of vacuum arc extinguishing chamber in China. The company is located in Guiyang national high-tech Development Zone. At present, Yuguang Company produces more than 200 series of vacuum arc extinguishing chamber products in 5 categories, and has the annual production capacity of 280,000 vacuum arc extinguishing chamber. The products are exported to the United States, Russia, Germany, Japan, India, South Korea, Taiwan and other countries and regions. And is the first company with 120kA high current generator protection and 126kV high voltage class vacuum arc extinguishing chamber production and research and development technology, production scale and research and development level in China is among the best. The company has a sound management system, has passed ISO9001:2000, ISO14001:2004 and OHSAS18001:2001 system certification, as well as nuclear power product supplier qualification certification. It has been awarded the title of "National contract-abiding and creditworthy Unit" by the State Administration for Industry and Commerce for many years in a row, and won the title of "Guizhou Famous Brand Products" for more than 10 years in a row. In 2014, Yuguang trademark and picture won the title of China Well-known trademark. The company is gradually increasing the technical transformation efforts, the company will be the most competitive vacuum arc extinguishing chamber production base.