Kingdream Public Limited Company is principally engaged in the manufacture and distribution of petroleum drilling and mining equipment. The Company provides drill bits, such as roller bits and diamond bits, which are applied in mining, exploration and drilling for petroleum, as well as spare parts for petroleum machinery, fine chemical products and compressed natural gas (CNG), among others. The Company distributes its products in domestic and overseas markets. As of December 31, 2010, the Company had six subsidiaries and affiliates, which involved in investment management, export and import trading, as well as manufacture and distribution of petroleum machinery, drilling tools and fine chemical products