China Longyuan invested in and operated 3 thermal power enterprises including Jiangyin Sulong Heat and Power Generating Co., Ltd. and Nantong Tianshenggang Power Generating Company, with the installed capacity totaling 2,875 MW. Of them, in the case of the profit level leading the comparable enterprises of the same kind, Jiangyin Sulong Heat and Power Generating Co., Ltd. is the first who has achieved ultra-low emission. Its emission of 3 major pollutants such as sulfur dioxide, nitrogen oxides and smoke dust is less than that in the emission standard for natural gas power generation, which plays an important demonstrative role in the environment improvement.