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SAIC Motor Corporation Limited (SAIC, formerly Shanghai Automotive Industry Corporation) is a Chinese state-owned automotive design and manufacturing company headquartered in Shanghai, with multinational operations. A Fortune Global 100 company and one of the "Big Four" state-owned Chinese automakers the company had the largest production volume of any Chinese automaker in 2014 making more than 4.5 million vehicles. Its manufacturing mix is not wholly consumer offerings, however, with as many as one million SAIC passenger vehicles being commercial vans.

SAIC traces its origins to the early years of the Chinese automobile industry in the 1940s, and SAIC was one of the few carmakers in Mao's China, making the Shanghai SH760. Currently, it participates in the oldest surviving sino-foreign car making joint venture, with Volkswagen, and in addition has had a joint venture and 40% shares of General Motors since 1998. SAIC products sell under a variety of brand names, including those of its joint venture partners.

Shanghai Sunwin Bus Corporation (SUNWIN) is a wholly owned subsidiary of SAIC MOTOR, with the total investment of 2250 Million RMB and registered capital of 1271.16 Million RMB The registered address of SUNWIN is 18 Guangzhong Rd. Minhang District, Shanghai, China.

SUNWIN plant area is 140,000 square meters including a construction area of ​​over 60,000 square meters, chassis workshop, body workshop, painting workshop, general assembly workshop and vehicle inspection line. Sunwin has the annual production capacity of 2000 complete buses and 3000 chassis, formed new energy vehicle-oriented product line. Energy category covers fuel cell, full electric, hybrid, and traditional diesel bus, bus length covers eight meters to eighteen meters, vehicle application including city bus, shuttle bus and coach.