Asia Satellite Telecom : AsiaSat 9 Successful Launch

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.

ASIA SATELLITE TELECOMMUNICATIONS HOLDINGS LIMITED

亞 洲 衛 星 控 股 有 限 公 司 *

(Incorporated in Bermuda with limited liability) Stock Code: 1135

ANNOUNCEMENT INSIDE INFORMATION ASIASAT 9 SUCCESSFUL LAUNCH

This announcement is made by Asia Satellite Telecommunications Holdings Limited (the "Company", and together with its subsidiaries, the "Group") pursuant to Rule 13.09(2) of the Rules Governing the Listing of Securities on The Stock Exchange of Hong Kong Limited (the "Listing Rules") and the Inside Information Provisions (as defined in the Listing Rules) under Part XIVA of the Securities and Futures Ordinance (Chapter 571 of the Laws of Hong Kong).

References are made to the announcements of the Company dated 22 June 2012 and 16 December 2013 (together, the "Previous Announcements") in relation to, among other things, (i) the launch services for AsiaSat 9 by ILS International Launch Services, Inc. (ILS) pursuant to the ILS Launch Contract, and (ii) the construction of AsiaSat 9 by Space Systems/Loral, LLC (SSL) pursuant to the Construction Agreement, respectively. Unless otherwise defined, the terms used in this announcement shall have the same meanings as the terms defined in the Previous Announcements.

The Company is pleased to announce AsiaSat 9's successful launch from the Baikonur Cosmodrome in Kazakhstan on 29 September 2017 at 2:52 a.m. Hong Kong time. Asia Satellite Telecommunications Company Limited ("AsiaSat"), an indirect wholly-owned subsidiary of the Company, has acquired the first signals from AsiaSat 9 in Hong Kong

approximately 7 hours and 54 minutes after the launch. Approximately 9 hours and 13 minutes after the launch, AsiaSat 9 successfully separated from the upper stage of the Launch Vehicle. Over the next few days, AsiaSat 9 will move to its operational position, approximately 36,000 kilometers above the equator where it will undergo in-orbit testing before coming into commercial use.

AsiaSat 9 is constructed by SSL, with an operational life over 15 years and is to replace AsiaSat 4 at orbital location of 122 degrees East with multiple C, Ku and Ka-band payloads, and provides coverage over the Asia-Pacific region.

Shareholders of the Company and potential investors are advised to take caution when dealing in the shares of the Company.

By order of the Board of

Asia Satellite Telecommunications Holdings Limited Sue YEUNG

Company Secretary

Hong Kong, 29 September 2017

As at the date of this announcement, the Board comprises 11 directors. The Executive Director is Mr. Andrew G. JORDAN. The Non-executive Directors are Mr. JU Wei Min (Chairman), Mr. Gregory M. ZELUCK (Deputy Chairman), Mr. LUO Ning, Mr. Peter JACKSON, Mr. Julius M. GENACHOWSKI and Mr. Herman CHANG Hsiuguo. The Independent Non-executive Directors are Mr. Marcel R. FENEZ, Mr. Stephen LEE Hoi Yin, Mr. Steven R. LEONARD and Ms. Maura WONG Hung Hung. The Alternate Director is Mr. CHONG Chi Yeung (alternate to Mr. LUO Ning).

* For identification purpose only