Zhejiang Mingrui Auto Parts Co., LTD. (hereinafter referred to as Mingrui) was established in 2005. The company mainly engaged in parking air conditioning, parking heater, car refrigerator, car water dispenser and other car electrical products. As of March 2023, Mingrui has applied for 59 patents, including 3 invention licenses, 14 invention announcements, 29 utility models, 13 designs, and 7 software Copyrights. Mingrui auto Parts currently has 110 employees, brings together technical talents in automotive electronic control, mechanical structure manufacturing, mechatronics and other professional fields, and is equipped with various advanced test instruments and equipment, which provides a solid equipment foundation and technical support for the development of products. In 2022, the total investment in research and development will reach 5 million yuan.

Mingrui new "annual output of 100,000 sets of parking air conditioning and 200,000 sets of parking heater" project is Ruian city Finance Bureau investment project. From January to December 2022, the output value reached nearly 86 million yuan. In 2023, Mingrui expands the production scale, highlights the scale efficiency, invests nearly 10 million yuan of funds to transform and upgrade the automatic assembly line, large-tonnage injection molding machine, new mold and other aspects, and the economic indicators of Huihai Electric will achieve substantial growth, and it is expected that the annual sales revenue can reach 100 million yuan, and the tax revenue can reach nearly 8 million yuan.