[This Form 6-K consists of: 1. a i r of ; and 2. an announcement on connected transaction regarding Qinling Company; Document 1 (Stock Code: 902) 2012 Interim Results Announcement Consolidated operating revenue: RMB67.180 billion Profit attributable to equity holders of the Company: RMB2.122 billion Earnings per share: RMB0.15 The Board of Directors (the “Board”) of Huaneng Power International, Inc.]