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 May 2018

(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:

Three announcements regarding issue of super short-term debentures and mid-term debentures of Huaneng Power International, Inc. (the Registrant”), made by the Registrant on May 5, 2018.







Hong Kong Exchanges and Clearing Limited and The Stock Exchange of Hong Kong Limited take no responsibility for the contents of this announcement, make no representation as to its accuracy or completeness and expressly disclaim any liability whatsoever for any loss howsoever arising from or in reliance upon the whole or any part of the contents of this announcement.
 

(Stock  Code: 902)

OVERSEAS REGULATORY ANNOUNCEMENT

ISSUE OF SUPER SHORT-TERM DEBENTURES

This announcement is made pursuant to Rule 13.10B of the Rules Governing the Listing of Securities on The Stock Exchange of Hong Kong Limited (the “Listing Rules”).

As resolved at the 2016 annual general meeting of Huaneng Power International, Inc. (the “Company”) held on 13 June 2017, the Company has been given a mandate to issue super short-term debentures (in either one or multiple tranches on rolling basis) with a principal amount of up to RMB32 billion (which means that the outstanding principal balance of the super short-term debentures in issue shall not exceed RMB32 billion at any time within the period as prescribed therein) in the PRC within 24 months from the date on which the shareholders’ approval was obtained.

The Company has recently completed the issue of the fifth tranche of the Company’s super short-term debentures for 2018 (the “Debentures”). The total issuing amount was RMB2.5 billion with a maturity period of 180 days whereas the unit face value is RMB100 and the interest rate is 4.25%.

Bank of Beijing Co., Ltd. acts as the lead underwriter to form the underwriting syndicate for the Debentures, which were placed through book-building and issued in the domestic bond market among banks. The proceeds from the Debentures will be used to supplement the working capital of the headquarters of  the Company, adjust debts structure and repay the debt financing instruments due.

The relevant documents in respect of the Debentures are posted on China Money and Shanghai Clearing House at websites of www.chinamoney.com.cn and  www.shclearing.com, respectively.


The Debentures do not constitute any transaction under Chapter 14 and Chapter 14A of the Listing   Rules.

 
By  Order  of  the Board
Huaneng  Power  International, Inc.
Huang  Chaoquan
Company  Secretary
 


As at the date of this announcement, the directors of the Company are:


Cao Peixi (Executive Director)
Liu Guoyue (Executive Director)
Huang Jian (Non-executive  Director)
Wang Yongxiang (Non-executive Director)
Mi Dabin (Non-executive Director)
Guo Hongbo (Non-executive Director)
Cheng Heng (Non-executive Director)
Lin Chong  (Non-executive Director)
 
Yue Heng (Independent Non-executive Director)
Xu Mengzhou (Independent Non-executive Director)
Liu Jizhen (Independent Non-executive Director)
Xu Haifeng (Independent Non-executive Director)
Zhang Xianzhi (Independent Non-executive Director)
 
 
 


Beijing, the PRC
5 May 2018




Hong Kong Exchanges and Clearing Limited and The Stock Exchange of Hong Kong Limited take no responsibility for the contents of this announcement, make no representation as to its accuracy or completeness and expressly disclaim any liability whatsoever for any loss howsoever arising from or in reliance upon the whole or any part of the contents of this announcement.


(Stock  Code: 902)

OVERSEAS REGULATORY ANNOUNCEMENT
 
ISSUE OF SUPER SHORT-TERM DEBENTURES
 
This announcement is made pursuant to Rule 13.10B of the Rules Governing the Listing of Securities on The Stock Exchange of Hong Kong Limited (the “Listing Rules”).

As resolved at the 2016 annual general meeting of Huaneng Power International, Inc. (the “Company”) held on 13 June 2017, the Company has been given a mandate to issue super short-term debentures (in either one or multiple tranches on rolling basis) with a principal amount of up to RMB32 billion (which means that the outstanding principal balance of the super short-term debentures in issue shall not exceed RMB32 billion at any time within the period as prescribed therein) in the PRC within 24 months from the date on which the shareholders’ approval was obtained.

The Company has recently completed the issue of the sixth tranche of the Company’s super short-term debentures for 2018 (the “Debentures”). The total issuing amount was RMB4 billion with a maturity period of 150 days whereas the unit face value is RMB100 and the interest rate is 4.08%.

Bank of China Limited acts as the lead underwriter to form the underwriting syndicate for the Debentures, which were placed through book-building and issued in the domestic bond market among banks. The proceeds from the Debentures will be used to supplement the working capital of the headquarters of the Company, adjust debts structure and repay the debt financing instruments due.

The relevant documents in respect of the Debentures are posted on Money and Shanghai Clearing House at websites of www.chinamoney.com.cn and  www.shclearing.com, respectively.


The Debentures do not constitute any transaction under Chapter 14 and Chapter 14A of the Listing Rules.


 
By Order of the Board
Huaneng Power International, Inc.
Huang Chaoquan
Company Secretary
 


As at the date of this announcement, the directors of the Company are:


Cao Peixi (Executive Director)
Liu Guoyue (Executive Director)
Huang Jian (Non-executive Director)
Wang Yongxiang (Non-executive Director)
Mi Dabin (Non-executive Director)
Guo Hongbo (Non-executive Director)
Cheng Heng (Non-executive Director)
Lin Chong (Non-executive Director)
 
Yue Heng (Independent Non-executive Director)
Xu Mengzhou (Independent Non-executive Director)
Liu Jizhen (Independent Non-executive Director)
Xu Haifeng (Independent Non-executive Director)
Zhang Xianzhi (Independent Non-executive Director)
 
 


Beijing, the PRC
5 May 2018
 


Hong Kong Exchanges and Clearing Limited and The Stock Exchange of Hong Kong Limited take no responsibility for the contents of this announcement, make no representation as to its accuracy or completeness and expressly disclaim any liability whatsoever for any loss howsoever arising from or in reliance upon the whole or any part of the contents of this announcement.


(Stock Code: 902)

OVERSEAS REGULATORY ANNOUNCEMENT

ISSUE OF MID-TERM NOTES

This announcement is made pursuant to Rule 13.10B of the Rules Governing the Listing of Securities on The Stock Exchange of Hong Kong Limited (the “Listing Rules”).

As resolved at the 2016 annual general meeting  of  Huaneng  Power  International, Inc. (the “Company”) held on 13 June 2017, the Company has been given a mandate to issue domestic and/or overseas debt financing instruments (in either one or multiple tranches on a rolling basis) with a principal amount of up to RMB29.3 billion or equivalent in or outside the People’s Republic of China, such instruments including but not limited to corporate bonds and enterprise bonds in the domestic market, mid-term notes in the interbank bond market, offshore RMB denominated bonds, overseas USD denominated bonds and bonds denominated in other foreign currencies in the overseas market.

The Company has recently completed the issue of the first tranche of the Company’s mid-term notes for 2018 (the “Mid-Term Notes”). The total issuing amount was RMB3 billion with a maturity period of 3 years whereas the unit face value is RMB100 and the coupon rate is 4.80%.

Agricultural Bank of China Limited acts as the lead underwriter to form the underwriting syndicate for the Mid-Term Notes, which were placed through book-building and issued in the domestic bond market among banks. The proceeds from the Mid-Term Notes will be used to supplement the working capital of the headquarters of the Company, adjust debts structure and repay the debt financing instruments due.

The relevant documents in respect of the Mid-Term Notes are posted on China Money and Shanghai Clearing  House at websites of www.chinamoney.com.cn and www.shclearing.com, respectively.


The Mid-Term Notes do not constitute any transaction under Chapter 14 and Chapter 14A of the Listing Rules.

 
By Order of the Board
Huaneng Power International, Inc.
Huang Chaoquan
Company Secretary



As at the date of this announcement, the directors of the Company are:


Cao Peixi (Executive Director)
Liu Guoyue (Executive Director)
Huang Jian (Non-executive Director)
Wang Yongxiang (Non-executive Director)
Mi Dabin (Non-executive Director)
Guo Hongbo (Non-executive Director)
Cheng Heng (Non-executive Director)
Lin Chong (Non-executive Director)
 
Yue Heng (Independent Non-executive Director)
Xu Mengzhou (Independent Non-executive Director)
Liu Jizhen (Independent Non-executive Director)
Xu Haifeng (Independent Non-executive Director)
Zhang Xianzhi (Independent Non-executive Director)
 


Beijing, the PRC
5 May 2018










 

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:     May 5, 2018