October 14, 2008

Huaneng Power International, Inc. Approval Obtained on the Project at Huaneng Jinling Power Plant Phase II

BEIJING, Oct. 14 /Xinhua-PRNewswire-FirstCall/ -- Huaneng Power International, Inc. (the "Company") (NYSE: HNP; HKEx: 902; SSE: 600011) today announces that the project of 1 x 1,000MW domestic ultra-supercritical coal- fired generating unit at Huaneng Jinling Power Plant Phase II has recently been approved by the National Development and Reform Commission.

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The project at Huaneng Jinling Power Plant Phase II will concurrently install high-performance electrostatic precipitators, flue-gas desulphurisation and denitrification facilities and flue-gas continuous emission monitoring system. Various emission indices at the power plant will satisfy the environmental protection requirements of the State.

The total investment amount of the project is estimated to be approximately RMB5.16 billion, of which 20% is equity capital to be funded by the Company, Jiangsu Guoxin Asset Management Group Company Limited and Nanjing Municipal Investment Company in the respective proportions of 60%, 30% and 10%. The remaining investment will be funded by bank loans.

Huaneng Power International, Inc. has a total generation capacity of 37,593MW on an equity basis and a controlling installed generation capacity of 40,989MW. The Company wholly owns sixteen operating power plants, an operating power company, and has controlling interests in thirteen operating power companies and minority interests in five operating power companies. Currently, it is one of the largest listed power producers in China.

   For enquiries, please contact:     Ms. Meng Jing or Ms. Zhao Lin    Huaneng Power International, Inc.    Tel:   +86-10-6649-1856 or +86-10-6649-1866    Fax:   +86-10-6649-1860    Email: [email protected]     Ms. Carrie Lam or Mr. Karl Cheung    Rikes Hill & Knowlton Limited    Tel: +852-2520-2201    Fax: +852-2520-2241  

Huaneng Power International, Inc.

CONTACT: Ms. Meng Jing or Ms. Zhao Lin of Huaneng Power International,Inc., +86-10-6649-1856 or +86-10-6649-1866, fax +86-10-6649-1860,[email protected]; Ms. Carrie Lam or Mr. Karl Cheung of Rikes Hill & Knowlton,+852-2520-2201, fax +852-2520-2241, for Huaneng Power International, Inc.

Web site: http://www.xprn.com/xprn/sa/200705141256.JPG