[This Form 6-K consists of: 1. 2. 3. NOTICE OF 2013 FIRST EXTRAORDINARY GENERAL MEETING NOTICE IS HEREBY GIVEN that the 2013 First Extraordinary General Meeting (the "Extraordinary General Meeting") of Huaneng Power International, Inc. (the "Company") will be held at 9:00 a.m. on 12 March 2013 at Huaneng Building, 6 Fuxingmennei Street, Xicheng District, Beijing, The People’s Republic of]