Beijing Zhongke Sanhuan High-Tech Co., Ltd. (hereinafter referred to as "Zhongke Sanhuan") is mainly composed of Beijing Sanhuan New Materials High-Tech Co., Ltd. (now renamed "Beijing Sanhuan Holdings Co., Ltd.") affiliated to the Chinese Academy of Sciences. A company established by the promoter on July 23, 1999, and was listed on the Shenzhen Stock Exchange of China on April 20, 2000 with the stock code 000970. Zhongke Sanhuan continues the main business of Sanhuan Company, engaged in the research and development, production and sales of magnetic materials and their application products.

Zhongke Three Ring Xia Na four sintered NdFeB permanent magnet manufacturers: Ningbo Koningda, Tianjin Sanhuan Lexi (joint venture with Taiwan all metal), Beijing Sanhuan Wakehua (joint venture with Germany vacuum smelting), Zhaoqing Three Ring Jingyu and a manufacturer of bonded NdFeB permanent magnets——Shanghai Sanhuan (joint venture with Japan Seiko Epson); it has a sintered sintered NdFeB permanent magnets——Hita Metal Three Ring Magnetic Materials (Nantong) Co., Ltd. The company (joint venture with Hitachi Metal), a soft ferriter manufacturer—— Nanjing Jinning Sanhuan Fuji Electric (joint venture with Japan Fuji Electric and Nanjing Jinning Electronics Group) and an amorphous soft tape manufacturer—— Tianjin San Huanona Technology Co., Ltd. Zhongke Sanhuan's main product neodymium iron boron is widely used in energy, transportation, machinery, information, home appliances, consumer electronics and other aspects. Especially in recent years, the rapid development of the global energy-saving and environmental protection industry has promoted the hybrid vehicles, electric vehicles, Applications in emerging fields such as energy-saving home appliances, robots, and wind power generation.

Zhongke Sanhuan has obtained a patent license for Hitachi Metal Neodymium-FeB, and its patented products are sold all over the world through Beijing Zhongke Sanhuan International Trading Company under the "SANMAG®" trademark.

Zhongke Sanhuan focuses on the raw material guarantee of the neodymium iron boron industry chain, and closely cooperates with my country's main rare earth raw material production areas in the upstream industries, and participates in two upstream raw material companies to ensure the stable supply of rare earth raw materials.

With rich rare earth resources, strong R&D strength, solid industrial foundation, pragmatic work style, tenacious pioneering spirit and unique innovative concepts, Zhongke Third Ring and Ring Road is becoming the world's advanced supplier of magnetic materials and devices.