CLP : Notice of Listing of U.S.$300,000,000 2.125 per cent. notes due 2031 to be issued by Castle Peak Power Finance Company Limited under its U.S.$2,000,000,000 Medium Term Note Programme unconditionally and irrevocably guaranteed by Castle Peak Power Company Limited

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.

This announcement is for information purposes only and does not constitute an invitation or offer to acquire, purchase or subscribe for securities.

Notice to Hong Kong investors: The Issuer and the Guarantor (each of as defined as below) confirm that the Notes (as defined below) are intended for purchase by professional investors (as defined in Chapter 37 of the Listing Rules) (as defined below) only and will be listed on The Stock Exchange of Hong Kong Limited on that basis. Accordingly, the Issuer and the Guarantor confirm that the Notes are not appropriate as an investment for retail investors in Hong Kong. Investors should carefully consider the risks involved.

NOTICE OF LISTING ON

THE STOCK EXCHANGE OF HONG KONG LIMITED

CASTLE PEAK POWER FINANCE COMPANY LIMITED

(incorporated with limited liability under the laws of the British Virgin Islands)

(the ''Issuer '')

unconditionally and irrevocably guaranteed by

CASTLE PEAK POWER COMPANY LIMITED

（ 青 山 發 電 有 限 公 司 ）

(incorporated with limited liability under the laws of Hong Kong)

(the ''Guarantor '')

U.S.$300,000,000 2.125 per cent. notes due 2031 (the ''Notes'')

(Stock Code: 40604)

to be issued under the Issuer's

U.S.$2,000,000,000 MEDIUM TERM NOTE PROGRAMME (the ''Programme'')

Joint Lead Managers

AUSTRALIA AND NEW ZEALAND BANKING GROUP LIMITED CRÉDIT AGRICOLE CORPORATE AND INVESTMENT BANK

THE HONGKONG AND SHANGHAI BANKING CORPORATION LIMITED

MIZUHO SECURITIES ASIA LIMITED

Application has been made to The Stock Exchange of Hong Kong Limited (the ''Stock Exchange'') for the listing of, and permission to deal in, the Notes by way of debt issues to professional investors* only as described in both the Offering Circular dated 12 June 2020 prepared in respect of the Programme and the pricing supplement dated 24 February 2021 prepared in respect of the Notes. Permission to deal in the Notes is expected to become effective on 4 March 2021.

* Professional investors shall have the meaning as defined in Chapter 37 of the Rules Governing the Listing of Securities on the Stock Exchange (the ''Listing Rule'').

3 March 2021

As at the date of this notice, the Board of Directors of Castle Peak Power Finance Company Limited comprises Mr. Chiang Tung Keung, Mr. Geert Herman August Peeters and Mr. Liu Mingni, and the Board of Directors of Castle Peak Power Company Limited comprises Mr. William Elkin Mocatta (with Mr. Tong Chi Leung David as his alternate), Mrs. Yuen So Siu Mai Betty, Mr. Richard Kendall Lancaster, Mr. Chiang Tung Keung (with Mr. Law Ka Chun as his alternate), Mr. Yang Hua (with Mr. Su Bingli and Mr. Liu Mingni as his alternates) and Mr. Zhang Tanzhi (with Mr. Su Bingli and Mr. Liu Mingni as his alternates).