PR Newswire | Apr 27, 2021 10:35AM EDT

04/27 09:34 CDT

Huaneng Power International, Inc. Announcement on Filing of Form 20-F BEIJING, April 27, 2021

BEIJING, April 27, 2021 /PRNewswire/ -- Huaneng Power International, Inc. ("the Company") (NYSE: HNP; HKEx: 902; SSE: 600011) today announced that it filed its annual report on Form 20-F for the fiscal year ended December 31, 2020 with the Securities and Exchange Commission on April 20, 2021 and has uploaded such annual report on Form 20-F to the Company's website at http://www.hpi.com.cn on April 26, 2021. The Company will provide a hard copy of the annual report containing its audited consolidated financial statements, free of charge, to its shareholders and ADS holders upon request.

About Huaneng Power International, Inc.

Huaneng Power International, Inc. is one of China's largest listed power producers with controlled generation capacity of 113,805 MW and equity-based generation capacity of 99,570 MW. The power plants of the Company are located in 26 provinces, autonomous regions and municipalities in China. The Company also has a wholly-owned power company in Singapore, and an invested power company in Pakistan.

For enquiries, please contact:

Huaneng Power International, Inc.Ms. ZHU Tao / Ms. ZHAO Lin / Mr. CHEN ZheluTel: (8610) 6608 6750 / 6322 6596 / 6322 6554Fax: (8610) 6322 6888 Email: zqb@hpi.com.cn

Wonderful Sky Financial Group LimitedMs. Peri Yang / Mr. Ken YuTel: (852) 3641 1332 Fax: (852) 3102 0210Email: hpi@wsfg.hk

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SOURCE Huaneng Power International, Inc.