SUFA Technology Industrial Company, a subsidiary of China National Nuclear Corporation (CNNC), has established itself as the world’s leading reference for nuclear-grade valves manufactured in China. Headquartered in Suzhou, Jiangsu Province, the company has been operating since 1952 and was the first Chinese valve manufacturer to obtain API certification, back in 1982. Since then, its qualification journey has never slowed.
The product that has most recently caught the industry’s attention is an engineering prototype of a pilot-operated safety valve with stabilizer, jointly developed by the China Nuclear Power Research & Design Institute and SUFA. The prototype successfully completed seismic identification testing. It also passed on-site review by the Nuclear & Radiation Safety Centre of the National Nuclear Safety Administration and the Nuclear Equipment Safety & Reliability Centre of the Institute of Mechanical Sciences. Two independent validations — not just one. Valves of this type are installed in the reactor’s primary circuit and play a critical role in ensuring safe plant operation.
SUFA is the first state-controlled company listed on a stock exchange in China’s nuclear valve industry, having been traded on the Shenzhen Stock Exchange since 1997. Its product portfolio spans gate valves, globe valves, check valves, ball valves, butterfly valves, and control valves, all compliant with API 6A, 6D, and 600 standards, along with CE, DNV, BV, and ABS certifications. A comprehensive catalogue that meets the demands of major nuclear construction sites across China, where dozens of new units are set to come online in the coming years.
SUFA operates within the context of one of the world’s most ambitious national nuclear programs. China currently has more reactors under construction than any other country, and the domestic supply chain is under pressure to keep pace. Primary circuit valves rank among the most complex nuclear-class components to manufacture: materials must withstand extreme temperatures and pressures, qualification processes take years, and full traceability of every single component is legally mandatory. SUFA was the first Chinese valve manufacturer to obtain API certification in 1982, and received both DNV ISO 9001:2000 international quality certification and CE certification in 2001. That early-mover advantage has translated into a competitive edge that endures to this day.
The ranking of China’s five leading manual valve manufacturers for 2026 — published by EINPresswire and picked up by numerous trade publications — places SUFA at the top, ahead of other players based in Suzhou and various industrial provinces. Pressure-sealed gate and globe valves designed to meet nuclear qualification standards form the backbone of its production. These are components that leave no room for error and must demonstrate reliability over decades, not just years.
What emerges is a picture of an industrial supply chain growing in lockstep with Chinese nuclear expansion. If Beijing maintains its planned construction pace — and so far it has — demand for nuclear-qualified valves will rise steadily throughout the decade. SUFA and its peers are well positioned to evolve into global suppliers, not merely domestic ones. The technology is there. The certifications are in place. The next step is breaking into international construction projects, where major contracts today are still awarded predominantly to European and North American manufacturers.
