Jiangnan Shipyard
As one of the main industrial centers of China, Shanghai plays a key role in domestic manufacturing and heavy industry. Several industrial zones—including Shanghai Hongqiao Economic and Technological Development Zone, Jinqiao Export Economic Processing Zone, Minhang Economic and Technological Development Zone, and Shanghai Caohejing High-Tech Development Zone—are backbones of Shanghai's secondary sector. Shanghai is home to China's largest steelmaker Baosteel Group, China's largest shipbuilding base Hudong-Zhonghua Shipbuilding Group, and one of China's oldest shipbuilders, the Jiangnan Shipyard. Auto manufacturing is another important industry. The Shanghai-based SAIC Motor is one of the three largest automotive corporations in China, and has strategic partnerships with Volkswagen and General Motors.