Dalian Yishun Precision Manufacturing Co., Ltd. was established in 2005. It is a high-tech enterprise specializing in the research and development, design, manufacturing, sales and service of wind power supporting products. The company's products mainly include slip ring brush holders, yaw current collector rings, pitch slip rings, grounding devices, brushes, etc. The power of the series products covers 0.75MW-16MW and are widely used in inland, plateau, coastal, and marine. More than 2,000 wind farms provide services to more than 90% of customers in the industry. The company has won wide recognition of customers with its reliable and stable products, and at the same time provides comprehensive solutions to customers. It has been linked to Goldwind Technology, Mingyang Intelligence, Vision Energy, Chongqing Haicheng, Shanghai Electric, Sany Group, Zhejiang Yunda, and Zhong Che Yongji, China Shipbuilding Corporation, Siemens and other well-known domestic and foreign companies have reached in-depth strategic cooperation.

With technological innovation as the core culture, the company has successfully applied for 42 national patents, including 4 invention patents and 38 utility model patents, and has been authorized by the state. With the continuous pursuit of product upgrades, the company has built its own laboratory and passed the CNAS certification in 2019.