Huaneng Power International (SHA:600011, HKG:0902) posted first-quarter net profit attributable to shareholders of 4.97 billion yuan, up 8.2% from the previous year.
Earnings per share rose 8.0% year over year to 0.27 yuan, according to a filing with the Shanghai bourse.
The electric power company's revenue was down 7.7% to 60.3 billion yuan.
Shares of Huaneng Power International were down 1% in recent trade.