Tongyi is a corporation with business scopes of production, trade, transportation and storage, with main products covering liquid petroleum gas, paraffin wax, fuel oil, benzene and other chemical products. The annual amount sales of liquid petroleum gas amounts to 200,000 tons, paraffin wax up to 31,000 tons. The annual sales income has achieved RMB 1.5 billion in 2005. The customer network has covered most part of China and overseas.