Founded in 1996, it is a well-known extrusion mold brand, mainly engaged in the R&D and production of chemical building materials molds and equipment/semiconductor plastic packaging molds and equipment/smart grid automation and industrial/power automation products

Wenyi Sanjia Technology Co., Ltd. (hereinafter referred to as Wenyi Technology) was established in May 2000 with a registered capital of 158.43 million yuan and was listed on the Shanghai Stock Exchange in January 2002 (stock code: 600520). In June 2016, Anhui Ruizhen Commercial Management Co., Ltd. acquired Tongling Sanjia Electronics (Group) Co., Ltd. and became the actual controller of Zhongfa Technology. The company has a total of 810 employees, two holding subsidiaries, five wholly-owned subsidiaries and two professional factories, the main business is: semiconductor packaging sector, products include semiconductor plastic packaging molds and equipment; Extrusion mold and equipment sector, products include extrusion molds, extruders and auxiliary machines, etc.; LED plate, products include LED brackets, dispensing machines, etc.; precision parts sector, products include belt conveyor roller bearing seats, seals and auto parts, etc.; In the energy-saving and environmental protection building materials sector, the products are mainly plastic steel and aluminum alloy doors and windows. The company is a national high-tech enterprise, a national intellectual property demonstration enterprise, a national enterprise intellectual property pilot unit, an independent innovation brand demonstration enterprise in Anhui Province, and one of the top 100 invention patent enterprises in Anhui Province. The company has a provincial postdoctoral research station, a provincial IC plastic packaging equipment engineering technology research center, a provincial technology center and a provincial industrial design center, integrated circuit packaging and testing equipment in Anhui Province Key Laboratory, the company's projects have undertaken major national science and technology projects and Anhui Province major science and technology projects, many times won the Anhui Provincial Science and Technology Award, Tongling City Science and Technology Progress Award, the company uses ERP management system, through the ISO9001:2000 quality management system certification. The company has established a comprehensive strategic cooperation agreement with the University of Science and Technology of China, and has carried out industry-university-research cooperation with the Hefei Branch of the Chinese Academy of Sciences, Hefei University of Technology, Wuhan University of Technology, Zhengzhou University, etc.