FORM 6-K


SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549


Report of Foreign Private Issuer
Pursuant to Rule 13a-16 or 15d-16 of
The Securities Exchange Act of 1934


 For the month of September 2017

(Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.)
Form 20-F     X   Form 40-F _____

(Indicate by check mark whether the registrant by furnishing the information contained in this form is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934. )
Yes ____No   X

(If "Yes" is marked, indicate below the file number assigned to registrant in connection with Rule 12g3-2(b): 82-__________. )
N/A

Huaneng Power International, Inc.
Huaneng Building,
6 Fuxingmennei Street,
Xicheng District,
Beijing, 100031 PRC




This Form 6-K consists of:

An announcement regarding Monthly Return of Equity Issuer on Movements in Securities of Huaneng Power International, Inc. (the Registrant”), submitted by the Registrant on September 1, 2017.



 
Monthly Return of Equity Issuer on Movements in Securities

For the month ended (dd/mm/yyyy) :
31/08/2017
 

To : Hong Kong Exchanges and Clearing Limited


Name of Issuer
Huaneng Power International, Inc
 
Date Submitted
01/09/2017
   

I. Movements in Authorised Share Capital

1. Ordinary Shares
(1) Stock code :
902
Description :
“H” share listed in H.K.
“ADR” listed in N.Y.
 
       
 
No. of ordinary shares
Par value
(RMB)
Authorised share capital
(RMB)
Balance at close of preceding month
4,700,383,440
 
1.00
 
4,700,383,440
 
Increase/(decrease)
0
     
0
 
             
Balance at close of the month
4,700,383,440
 
1.00
 
4,700,383,440
 
 
 
(2) Stock code :
600011
Description :
“A” share listed in Shanghai
 
       
 
No. of ordinary shares
Par value
(RMB)
Authorised share capital
(RMB)
Balance at close of preceding month
10,500,000,000
 
1.00
 
10,500,000,000
 
Increase/(decrease)
0
     
0
 
             
Balance at close of the month
10,500,000,000
 
1.00
 
10,500,000,000
 
 


2. Preference Shares
  Stock code :
N/A
Description :
   
       
 
No. of
preference shares
Par value
(State currency)
Authorised share capital
(State currency)
Balance at close of preceding month
           
Increase/(decrease)
           
             
Balance at close of the month
           
         

3. Other Classes of Shares
  Stock code :
N/A
Description :
   
       
 
No. of other
classes of shares
Par value
(State currency)
Authorised share capital
(State currency)
Balance at close of preceding month
           
Increase/(decrease)
           
             
Balance at close of the month
           
         

Total authorised share capital at the end of the month (RMB) :
15,200,383,440
 





II. Movements in Issued Share Capital
 
No. of ordinary shares
 
No of preference shares
 
No. of other classes of shares
 
(1)
 
(2)
Balance at close of preceding month
4,700,383,440
 
10,500,000,000
 
N/A
 
N/A
 
Increase/ (decrease) during the month
0
 
0
         
Balance at close of the month
4,700,383,440
 
10,500,000,000
         
   
 
III. Details of Movements in Issued Share Capital

Share Options (under Share Option Schemes of the Issuer): N/A
Particulars of share option scheme
including EGM approval date
(dd/mm/yyyy) and class of shares issuable
Movement during the month
No. of new shares of issuer issued during the month pursuant thereto
 
No. of new shares of issuer which may be issued pursuant thereto as at close of the month
 
Granted
Exercised
Cancelled
Lapsed
 
1.
                       
                           
                           
                           
 
  (    /    /        )
                       
 
shares
                       
 
(Note 1)
                       
                           
 
2.
                       
                           
                           
                           
 
  (    /    /        )
                       
 
shares
                       
 
(Note 1)
                       
                           
 
3.
                       
                           
                           
                           
 
  (    /    /        )
                       
 
shares
                       
 
(Note 1)
                       
         
Total A.   (Ordinary shares)
       
             
(Preference shares)
       
             
(Other class)
       
Total funds raised during the month from exercise of options (State currency)
   
       

Warrants to Issue Shares of the Issuer which are to be Listed: N/A
Description of warrants
(Date of expiry - dd/mm/yyyy)
Currency of nominal value
Nominal value at close of preceding month
Exercised during the month
Nominal value at close of the month
No. of new shares of issuer issued during the month pursuant thereto
No. of new shares of issuer which may be issued pursuant thereto as at close of the month
 
1.
                         
                             
                             
 
(      /     /            )
         
Stock code (if listed)
   
Class of shares issuable (Note 1)
   
Subscription price
   
EGM approval date
(if applicable)
(dd/mm/yyyy)
(    /    /        )
 
 
2.
                         
                             
                             
 
(      /     /            )
       
Stock code (if listed)
   
Class of shares issuable (Note 1)
   
Subscription price
   
EGM approval date
(if applicable)
(dd/mm/yyyy)
(    /    /        )
 
 
3.
                         
                             
                             
 
(      /     /            )
       
Stock code (if listed)
   
Class of shares issuable (Note 1)
   
Subscription price
   
EGM approval date
(if applicable)
(dd/mm/yyyy)
(    /    /        )
 
 
4.
                         
                             
                             
 
(      /     /            )
       
Stock code (if listed)
   
Class of shares issuable (Note 1)
   
Subscription price
   
EGM approval date
(if applicable)
(dd/mm/yyyy)
(    /    /        )
 
       
 
Total B.      (Ordinary shares)
     
   
(Preference shares)
     
   
(Other class)
     
       

Convertibles (i.e. Convertible into Shares of the Issuer which are to be Listed): N/A
Class and description
Currency of amount outstanding
Amount at close of preceding month
Converted during the month
Amount at close of the month
No. of new shares of issuer issued during the month pursuant thereto
 
No. of new shares of issuer which may be issued pursuant thereto as at close of the month
 
 
1.
                         
                             
                             
                             
Stock code (if listed)
     
Class of shares issuable (Note 1)
   
Subscription price
   
EGM approval date
(if applicable)
(dd/mm/yyyy))
(    /    /        )
 
 
2.
                         
                             
                             
                             
Stock code (if listed)
     
Class of shares issuable (Note 1)
   
Subscription price
   
EGM approval date
(if applicable)
(dd/mm/yyyy)
(    /    /        )
 
 
3.
                         
                             
                             
                             
Stock code (if listed)
     
Class of shares issuable (Note 1)
   
Subscription price
   
EGM approval date
(if applicable)
(dd/mm/yyyy)
(    /    /        )
 
 
4.
                         
                             
                             
                             
Stock code (if listed)
     
Class of shares issuable (Note 1)
   
Subscription price
   
EGM approval date
(if applicable)
(dd/mm/yyyy)
(    /    /        )
 
 
Total C.  (Ordinary shares)
     
   
(Preference shares)
     
   
(Other class)
     
     


Any other Agreements or Arrangements to Issue Shares of the Issuer which are to be Listed, including Options (other than under Share Option Schemes): N/A
Full particulars including EGM approval date (dd/mm/yyyy),
if applicable, and class of shares issuable:
No. of new shares of issuer issued during the month pursuant thereto
 
No. of new shares of issuer which may be issued pursuant thereto as at close of the month
 
1.
       
         
         
 
(    /    /        )
     
 
Ordinary shares (Note 1)
     
         
2.
       
         
         
 
(    /    /        )
     
 
Ordinary shares (Note 1)
     
         
3.
       
         
         
 
(    /    /        )
     
 
Ordinary shares (Note 1)
     
         
 
Total D.     (Ordinary shares)
     
 
(Preference shares)
     
 
(Other class)
     
       



Other Movements in Issued Share Capital: N/A
 
Type of Issue
       
No. of new shares of issuer issued during the month pursuant thereto
No. of new shares of issuer which may be issued pursuant thereto as at close of the month
1.          Rights issue
At price :
State currency
   
 
Class of shares issuable (Note 1)
 
Issue and allotment date : (dd/mm/yyyy)
 
EGM approval date:
(dd/mm/yyyy)
 
 
________
 
 
(   /   /       )
 
 
(   /   /       )
         
 
                       
2.          Open offer
At price :
State currency
   
 
Class of shares issuable (Note 1)
 
Issue and allotment date : (dd/mm/yyyy)
 
EGM approval date:
(dd/mm/yyyy)
 
 
________
 
 
(   /   /       )
 
 
(   /   /       )
         
 
                       
3.          Placing
At price :
State currency
   
 
Class of shares issuable (Note 1)
 
Issue and allotment date : (dd/mm/yyyy)
 
EGM approval date:
(dd/mm/yyyy)
 
 
________
 
 
(   /   /       )
 
 
(   /   /       )
         
 
                       
4.          Bonus issue
       
 
Class of shares issuable (Note 1)
 
Issue and allotment date : (dd/mm/yyyy)
 
EGM approval date:
(dd/mm/yyyy)
 
 
________
 
 
(   /   /       )
 
 
(   /   /       )
         
 


 
Type of Issue
       
No. of new shares of issuer issued during the month pursuant thereto
No. of new shares of issuer which may be issued pursuant thereto as at close of the month
5.          Scrip dividend
At price :
State currency
   
 
Class of shares issuable (Note 1)
 
Issue and allotment date : (dd/mm/yyyy)
 
EGM approval date:
(dd/mm/yyyy)
 
 
________
 
 
(   /   /       )
 
 
(   /   /       )
         
 
 
                       
6.          Repurchase of shares
       
 
Class of shares repurchased (Note 1)
 
Cancellation date : (dd/mm/yyyy)
 
EGM approval date:
(dd/mm/yyyy)
 
 
________
 
 
(   /   /       )
 
 
(   /   /       )
         
                       
7.          Redemption of shares
       
 
Class of shares redeemed (Note 1)
 
Redemption date : (dd/mm/yyyy)
 
EGM approval date:
(dd/mm/yyyy)
 
 
________
 
 
(   /   /       )
 
 
(   /   /       )
         
                       
8.          Consideration issue
At price :
State currency
   
 
Class of shares issuable (Note 1)
 
Issue and allotment date : (dd/mm/yyyy)
 
EGM approval date:
(dd/mm/yyyy)
 
 
________
 
 
(   /   /       )
 
 
(   /   /       )
         
 


 
Type of Issue
       
No. of new shares of issuer issued during the month pursuant thereto
No. of new shares of issuer which may be issued pursuant thereto as at close of the month
9.          Capital reorganisation
       
 
Class of shares issuable (Note 1)
 
Issue and allotment date : (dd/mm/yyyy)
 
EGM approval date:
(dd/mm/yyyy)
 
 
________
 
 
(   /   /       )
 
 
(   /   /       )
         
                       
10.          Other
(Please specify)
At price :
State currency
   
 
Class of shares issuable (Note 1)
 
Issue and allotment date : (dd/mm/yyyy)
 
EGM approval date:
(dd/mm/yyyy)
 
________
 
 
(   /   /       )
 
 
(   /   /       )
         
 
     
   
Total E.   (Ordinary shares)
     
   
(Preference shares)
     
   
(Other class)
     
 


 
Total increase / (decrease) in ordinary shares during the month (i.e. Total of A to E):          (1)
0
(2)
0
Total increase / (decrease) in preference shares during the month (i.e. Total of A to E):
N/A
Total increase / (decrease) in other classes of shares during the month (i.e. Total of A to E):
N/A
(These figures should be the same as the relevant figures under II above (“Movements in Issued Share Capital”).)


Remarks (if any):
 
 
 
 
 
 
 
 
 
 
 

Submitted by:
Huang Chaoquan
 
     
Title:
Secretary of the Board of Directors
 
 
(Director, Secretary or other duly authorised officer)
 

 

Notes :

1.
State the class of shares (e.g. ordinary, preference or other).

2.
If there is insufficient space, please append the prescribed continuation sheet.




SIGNATURE


Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the under-signed, thereunto duly authorized.

HUANENG POWER INTERNATIONAL, INC.

By  /s/ Huang Chaoquan


Name:
Huang Chaoquan
Title:
Company Secretary

Date:     September 4, 2017