Overseas Regulatory Announcement

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.

                DATANG INTERNATIONAL POWER GENERATION CO., LTD.

   (a sino-foreign joint stock limited company incorporated in the People's
                              Republic of China)

                              (Stock Code: 00991)

                       OVERSEAS REGULATORY ANNOUNCEMENT

                          INDICATIVE ANNOUNCEMENT ON
                      THE LISTING OF THE TRADEABLE SHARES
                           WITH SELLING RESTRICTIONS

Special Notice:

The board of directors (the "Board") and all directors (the "Directors") of the
Company warrant that there are no false representations and misleading
statements contained in, or material omissions from, this announcement, and
severally and jointly accept the responsibility for the truthfulness, accuracy
and completeness of the contents of this announcement.

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

Notice on important information:

The number of tradable restricted shares to be listed this time amounts to
100,000,000 shares.

The date of listing and trading of the tradable restricted shares this time is
30 May 2014.

I.  TYPE OF TRADABLE RESTRICTED SHARES TO BE LISTED THIS TIME

     1. The tradable restricted shares to be listed this round are non-publicly
        issued tradable restricted shares.

     2. The approval status of the non-publicly issued tradable shares with
        selling restrictions:

        (1) The time of approval and share registration of the non-publicly
            issued tradable restricted shares

            Pursuant to the approval document CSRC Permit [2010] No. 1842, i.e.
            "Approval for the Non-public Issuance of Shares of Datang
            International Power Generation Co., Ltd." from China Securities
            Regulatory Commission ("CSRC"), the Company has issued
            1,000,000,000 RMB ordinary shares (A Shares) to nine specific
            investors by way of non-public issue at an issue price of RMB6.74
            per share. The deposit procedures with Shanghai Branch of China
            Securities Depository and Clearing Corporation Limited were
            completed on 30 May 2011. Upon completion of these non-public
            issuance of shares, the total share capital of the Company
            increased to 13,310,037,578 shares. On 1 June 2011, the
            "Announcement on the Results of Non-Public Issuance of Shares and
            Changes of Shareholdings of Datang Power" (Announcement No.
            2011-36) was published by the Company on the China Securities
            Journal, the Shanghai Securities News as well as on the website of
            the Shanghai Stock Exchange and the website of the Company.

        (2) Arrangement for the lock-up period
		
            Pursuant to the relevant requirements under "Measures Governing the
            Issuance of Securities by Listed Companies", the A Shares issued
            under non-public issuance were tradable restricted shares which
            shall not be transferred during the lock-up period. Among which,
            the lock-up period of the shares subscribed by China Datang
            Corporation ("CDC"), the controlling shareholder of the Company,
            was 36 months and the estimated time for listing and trading of
            such shares will be 30 May 2014. The lock-up period of shares
            subscribed by the other eight target subscribers was 12 months and
            the time for listing and trading of such shares was 30 May 2012.

II. CHANGE IN THE NUMBER OF TRADABLE SHARE CAPTIAL OF THE COMPANY TO DATE AFTER
    THE ISSUANCE OF THIS ROUND OF TRADABLE RESTRICTED SHARES
	
    On 30 May 2012, other than the shares subscribed by CDC, the shares
    subscribed by the other eight target subscribers have been released from
    restriction and were available for listing and trading. The total number of
    tradable restricted shares released was 900,000,000 shares, representing
    approximately 6.76% of the total share capital of the Company. To date, the
    total number of tradable shares with selling restrictions of the Company is
    100,000,000 shares, representing approximately 0.75% of the total share
    capital of the Company (for details, please refer to the "Indicative
    Announcement on the Listing of the Tradable Restricted Shares of Datang
    Power" issued by the Company on 21 May 2012).

III. UNDERTAKINGS IN RELATION TO THIS ROUND OF LISTING AND TRADING OF THE
    TRADEABLE SHARES WITH SELLING RESTRICTIONS
	
    During this round of non-public issuance of shares by the Company, CDC has
    undertaken that: Starting from 30 May 2011, the 100,000,000 A Shares issued
    by the Company by way of non-public issuance and subscribed by CDC would
    not be put to listing and trading for a period of 36 months. As at the date
    of this announcement, CDC has strictly complied with its undertaking.
	
    There is no non-compliance of undertakings by the holders of tradable
    restricted shares applying for listing this round that would affect this
    round of listing and trading of the tradable restricted shares.

IV. APPROPRIATION OF FUNDS BY THE CONTROLLING SHAREHOLDER AND ITS RELATED
    PARITES
	
    There is no appropriation of funds by the controlling shareholder and its
    related parties of the Company.

V.  LISTING AND TRADING OF THE TRADABLE RESTRICTED SHARES THIS TIME

    The number of tradable restricted shares to be listed this time amounts to
    100,000,000 shares;
	
    The date of listing and trading of the tradable restricted shares this time
    is 30 May 2014;
	
    Details on this round of listing of tradable restricted shares:

No.   Name of      Number of    Percentage of     Number of          Remaining
    shareholder     tradable       tradable     shares listed        number of
                   restricted     restricted     this round           tradable
                  shares held    shares held in  (unit: shares)      restricted
                                 the Company's                         shares
                  (unit: shares)  total share                          (unit:
                                   capital (%)                         shares)


1        CDC          100,000,000     0.75          100,000,000               0

   Total              100,000,000     0.75          100,000,000               0

VI. TABLE ILLUSTRATING CHANGE OF SHAREHOLDING STRUCTURE

Unit: Shares                         Before this    Change           After this
                                      round of                        round of
                                      listing                         listing

Tradable         State-owned legal    100,000,000  -100,000,000               0
restricted       person shares
shares with
selling          Total number of      100,000,000  -100,000,000               0
restrictions     tradable shares
                 with selling
                 restrictions

Tradable         A Shares          9,894,360,000    100,000,000   9,994,360,000
non-restricted
shares           H Shares          3,315,677,578              0   3,315,677,578
without selling
restrictions     Total number of  13,210,037,578    100,000,000  13,310,037,578
                 tradable
                 non-restricted
                 shares

Total number                              13,310,037,578
of shares

                                                   By Order of the Board
                                                          Zhou Gang
                                                   Secretary to the Board

Beijing, the PRC, 20 May 2014

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

Chen Jinhang, Hu Shengmu, Wu Jing, Fang Qinghai, Zhou Gang, Li Gengsheng,
Cao Xin, Cai Shuwen, Liu Haixia, Guan Tiangang, Dong Heyi*, Ye Yansheng*,
Li Hengyuan*, Zhao Jie*, Jiang Guohua*

* Independent non-executive Directors