HNP [HUANENG POWER INTERNATIONAL] 6-K: (Original Filing)
[This Form 6-K consists of: HUANENG POWER INTERNATIONAL, INC. By Huang Chaoquan Company Secretary Monthly Return of Equity Issuer on Movements in Securities For the month ended (dd/mm/yyyy) : 30/06/2017 To : Hong Kong Exchanges and Clearing Limited Name of Issuer Huaneng Power International, Inc]