Gui Mao Han

Shanghai Matsuo Steel Structure Co., Ltd. is a Chinese company that manufactures and supplies bridge steel structures. The private company is based in Fengxian, China.

Shenzhen Chiwan Petroleum Supply Base Co. provides logistics services for petroleum and natural gas exploration, exploitation and production operators. The company was founded on February 10, 1984 and is headquartered in Shenzhen, China.

Shenzhen Chiwan Sembawang Engineering Co., Ltd. engages in the production and operation of steel structure products used in marine engineering, land industry, and civil engineering; as well as the provision of after-sales services of its own products. It also engages in the acquisition and export of non-quota licenses and non-proprietary goods. The company was founded on July 2, 1994 and is headquartered in Shenzhen, China.

China Nanshan Development (Group) Inc. engages in logistics, industrial and urban development, financial services, asset management, and other fields. The company was founded on September 28, 1982 and is headquartered in Shenzhen, China.

Chixiao Enterprise Co., Ltd. is an investment holding company, which engages in property leasing, economic information consultation, domestic trade, as well as the import and export of goods and technology. The company was founded on April 28, 2006 and is headquartered in Shenzhen, China.