[This Form 6-K consists of: ANNOUNCEMENT ON THE INCREASE IN SHAREHOLDINGS OF THE COMPANY BY CONTROLLING SHAREHOLDER Company Huaneng International Treasury Company Huaneng Group Recently, Huaneng Power International, Inc. (“ I. THE INCREASE IN THE SHAREHOLDINGS Treasury Company recently increased its ]

[This Form 6-K consists of: Monthly Return of Equity Issuer on Movements in Securities For the month ended (dd/mm/yyyy) : 30/04/2020 To : Hong Kong Exchanges and Clearing Limited Name of Issuer Huaneng Power International, Inc. (A Sino-foreign joint stock limited company incorporated in the People's ]

[This Form 6-K consists of: 1. 2. 3. an announcement regarding receipt of the results compensation amount of the Regitrant; Document 1 THIS CIRCULAR IS IMPORTANT AND REQUIRES YOUR IMMEDIATE ATTENTION If you are in any doubt If you have sold or transferred PROPOSAL ON ELECTION OF NEW SESSION OF THE BO]

[This Form 6-K consists of: NOTICE OF 2019 ANNUAL GENERAL MEETING NOTICE IS HEREBY GIVEN Annual General Meeting General Meeting Company ORDINARY RESOLUTIONS 1. To consider and approve the working report from the Board of Directors of the Company for 2019 2. To consider and approve the working report ]