Jiangxi QOCI Electric Co., Ltd. is a national high-tech enterprise established in 2002, specializing in the research and development, production, and sales of porcelain and glass insulators for power transmission and distribution.
We are a qualified supplier for both State Grid Corporation of China and China Southern Power Grid — the two largest grid operators in the country — and our products cover voltage ratings from 10 kV to 1000 kV, with mechanical strength classes ranging from 40 kN to 840 kN.
Our portfolio includes line post insulators, pin-type, suspension, and cap-and-pin types, both in porcelain and glass, which have been deployed in major projects such as the 110kV Manduo Transmission Project and the 500kV Jinling Transmission Project, serving more than 30 provinces across China. We operate from a 70,000-square-meter facility in Jiangxi Province with a team of 136 employees, including 41 senior engineers, and have maintained annual sales exceeding RMB 400 million over the past two years.
Our manufacturing processes are fully certified under ISO 9001, ISO 14001, ISO 45001, and ISO 50001, and we are recognized by China's Ministry of Industry and Information Technology as a Green Manufacturing Factory. We have also developed the industry's first intelligent production line for UHV insulators through our partnerships with leading universities. In short, we are a proven, reliable partner for high-voltage insulation solutions — from standard distribution lines to ultra-high-voltage transmission projects — and we are here to support your grid infrastructure needs with quality products and on-time delivery.
