Founded in 1995, the Chongqing Zonsen Power Parts Division is located in Zonsen Industrial Park in Chongqing's Banan District. It is a professional manufacturing company focusing on aluminum alloy casting and processing, with casting and machining facilities covering approximately 27,000 square meters. The division houses over 40 die-casting machines ranging from 280 tons to 3,000 tons, including leading brands like Buhler, Toshiba, Yizumi, and LK, with an annual casting output of nearly 20,000 tons. The machining facility covers 30,000 square meters and has over 600 pieces of equipment, including more than 400 machining centers, with 20 flexible machining and specialized production lines, as well as fully automated robotic production lines, including five fully automated flexible manufacturing units located in Chengdu and Chongqing, with an additional plant in Chengdu.

Chongqing Meixin Yishen Machinery Co., Ltd., founded in 1994 and officially established on June 29, 2012, successfully completed its IPO on the Beijing Stock Exchange on November 8, 2023, with stock code 873833 and a registered capital of 82.36 million yuan. Currently, it employs over 1,200 people and specializes in the R&D, production, and sales of internal combustion engine crankshafts, refrigeration and air compressor crankshafts, and related products. Known internationally, it is one of the renowned precision crankshaft manufacturing bases.
The headquarters, located in Chongqing’s Fuling High-tech Zone, spans 170,000 square meters (about 255 acres) and includes two subsidiaries, one branch, and three manufacturing bases. In 2018, the company’s overseas factory in Mexico officially commenced production.
The company has established comprehensive quality, environmental, occupational health safety, energy management systems and obtained certifications such as IATF 16949:2016, ISO 14001:2015, ISO 45001:2018, ISO 50001:2018, industrialization & informationization integration certification, and advanced AEO certification. It has also been recognized as a national “Little Giant” for specialization, refinement, and novelty, a “National Green Factory,” a “Chongqing Technology Innovation Demonstration Enterprise,” a “Chongqing Enterprise Technology Center,” a “Chongqing Digital Workshop,” an “Outstanding Private Enterprise in Chongqing,” and a “Chongqing Fuling District Science and Technology Innovation Work ‘Advanced Collective.’”
The company adheres to the “Science + Technology” and “Green +” development strategies to achieve the goal of “Digital Empowerment, Quality Improvement, and Efficiency Enhancement.” It has made digital transformation a core part of its strategy, and through continuous exploration and innovation, has successively implemented OA, PLM, APS, ERP, SRM, and MES systems, achieving integrated operation among these systems.
Committed to technological innovation, the company has continuously strengthened its R&D team and increased investment in R&D. Its technical center has been recognized as a “Chongqing Enterprise Technology Center,” with over 80 crankshaft experts. The company holds 78 independent patents, including three invention patents and 75 utility model patents.
Its products are directly exported to the United States, Europe, Japan, Thailand, and other countries, with exports accounting for over 50% of sales. It has become a strategic partner to renowned global enterprises, including U.S.-based Copeland, Briggs & Stratton, Honda, as well as Chinese companies Zonsen Power, Kohler Engines, Runtong Power, Loncin General, and Chunfeng Power. The company is dedicated to its mission of becoming an “Expert in Precision Machinery Manufacturing” and is committed to becoming a respected supplier worldwide.