Delong Holdings Limited, an investment holding company, manufactures and sells hot-rolled steel coils and billets in the People’s Republic of China. Its hot-rolled steel coils are used in infrastructure, pipe-making, and machinery industries. The company is also involved in procurement and sale of iron ore; financial leasing; coal gas recycling; and design, development, manufacture, and sale of large diameter steel mill rollers and cast steel articles. In addition, it trades in steel and steel related products, limestone, and lime; provides technology development, advisory, and related investments services; and invests in resource related projects. Further, the company provides assets management; undertakes research and development on nanocalcium carbonate; and constructs and operates petrol gas stations. The company is headquartered in Beijing, the People’s Republic of China. Delong Holdings Limited operates as a subsidiary of Best Grace Holdings Limited.