Huaneng Power International Inc., was incorporated in the People's Republic of Chinaon 30 June 1994. The Company and its subsidiaries are engaged in the generation and sale of electric power to the respective regional or provincial grid companies in the PRC and in Singapore. It conducts its business in Singapore through SinoSing Power Pte Ltd. ("SinoSing Power") and its subsidiaries. It is engaged in developing, constructing, operating and managing power plants throughout China. Its domestic power plants are located in 19 provinces, provincial-level municipalities and autonomous regions. As of March 31, 2014, it had controlling generating capacity of 66,795 MW, and a total generating capacity of 59,993 MW on an equity basis. The reportable segments of the Company are the PRC power segment, Singapore segment and all other segments (mainly including port and transportation operations). The Company is subject to the PRC Environmental Protection Law.