Huaneng Power International, Inc. estimated that the net profit attributable to the shareholders of the company for the year ended December 31, 2017 would decrease by RMB 6,500 million to RMB 7,400 million, representing a decrease of 74% to 84% compared to the unrestated amount of the corresponding period last year; and decrease by RMB 8,100 million to RMB 9,000 million, representing a decrease of 78% to 86% compared to the restated amount of the corresponding period last year. The main reason attributable to the decrease in the Company's operating results for the period: due to the significant increase in coal price compared to last year, the profitability of the coal-fired generating units of the Company has severely decreased.