HNP [HUANENG POWER INTERNATIONAL] SC 13G/A: (Original Filing)
[SCHEDULE 13G 02 (Amendment No. HUANENG POWER INTERNATIONAL, INC. (Name of Issuer) Overseas Listed Shares with Par Value of RMB1.00 Per Share Y3744A105 May 31, 2018 x o o * The remainder of this cover page shall be filled out for a reporting person’s initial filing on this form with respect to the su]