MAINRICH is a high-tech enterprise specializing in the development and production of magnetic materials and products. Established in Hong Kong in 1995, the market has undergone continuous exploration and development. In order to better serve the market, production plants were built in Zhongshan, Shunde, and Shanxi, Guangdong, and R&D centers were built in Shenyang from 1995 to 2010. The total area of the plants was 120000 square meters, with 18 automatic production lines, supporting all processes and equipment such as vacuum rapid solidification, hydrogen treatment, steam flow grinding, magnetic field forming, and vacuum sintering.