China Unicom Hong Kong : Announcement in Relation to Mixed Ownership Reform and Resumption of trading

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.

中國聯合網絡通信(香港)股份有限公司

(Incorporated in Hong Kong with limited liability)

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

We refer to the announcements issued by the Company on 10 October 2016, 30 November 2016, 5 April 2017, 24 July 2017 and 9 August 2017 stating that its ultimate parent company, China United Network Communications Group Company Limited may involve China United Network Communications Limited, the controlling shareholder of the Company (the "Unicom A Share Company"), as a platform for contemplating, developing and progressing significant matters relating to the mixed ownership reform, and which may potentially involve a change in the shareholding structure of the Unicom A Share Company.

We also refer to the announcement issued by the Company on 16 August 2017 (the "Announcement") in relation to the mixed ownership reform plan being implemented by Unicom A Share Company (the "Mixed Ownership Reform Plan").

On 20 August 2017, Unicom A Share Company published an announcement (the "Announcement of Unicom A Share Company") in relation to the Mixed Ownership Reform Plan on the website of Shanghai Stock Exchange (www.sse.com.cn). The Company confirms that, the information in relation to the Mixed Ownership Reform Plan disclosed in the Announcement of the Company dated 16 August 2017, including the identities of the investors, their respective shareholding in Unicom A Share Company and the total funds to be raised by Unicom A Share Company, are consistent with the contents of the Announcement of Unicom A Share Company.

The Company sets out again the list of the strategic investors in Unicom A Share Company in this announcement, which are consistent with those disclosed in the Announcement of the Company dated 16 August 2017, for the information of the shareholders and investors of the Company.

• 中國人壽 (中國人壽保險股份有限公司, China Life Insurance Company Limited),

• 騰訊信達 (深圳市騰訊信達有限合夥企業（有限合夥）, Shenzhen Tencent Cinda Limited Partnership),

   百度鵬寰 (寧波梅山保稅港區百度鵬寰投資合夥企業（有限合夥）, Ningbo Meishan

  Free Trade Port Area Baidu Peng Huan Investment LLP),

   京東三弘 (宿遷京東三弘企業管理中心（有限合夥）, Suqian Jingdong Sanhong Management Limited Partnership),

• 阿里創投 (杭州阿里創業投資有限公司, Hangzhou Ali Venture Capital Co., Ltd.),

• 蘇寧雲商 (蘇寧雲商集團股份有限公司, Suning Commerce Group Co., Ltd.),

   光啟互聯 ( 深圳光啟互聯技術投資合夥企業（ 有限合夥）, Shenzhen Kuangchi Connection Technology Investment Limited Partnership),

   淮海方舟 (深圳淮海方舟信息產業股權投資基金（有限合夥）, Shenzhen Huaihai Ark IT

  Investment Fund LLP), whose investors include, among others, 滴滴出行科技有限公司 (Didi Chuxing Technology Co., Ltd.), 用友網絡科技股份有限公司(Yonyou Software Co., Ltd.), 廣東宜通世紀科技股份有限公司(Guangdong Eastone Century Technology Co., Ltd.) and 前海股權投資基金(有限合夥) (Qianhai Equity Investment Fund LLP),

• 興全基金 (興全基金管理有限公司, Aegon-Industrial Fund Management Co. Ltd.). The asset management schemes used by Aegon-Industrial Fund Management Co. Ltd. to subscribe for the shares of Unicom A Share Company were funded by 上海網宿投資管理

有限公司 (Shanghai Wangsu Investment Management Co., Ltd.) and 中車金證投資有限

公司 (CRRC Financial and Securities Investment Co., Ltd.), which is wholly owned by 中 國中車集團公司(CRRC Group), and

 結構調整基金 (中國國有企業結構調整基金股份有限公司, China Structural Reform Fund Corporation Limited).

As disclosed in the Announcement, Unicom A Share Company also intends to discuss with the Company in relation to a proposed subscription of shares of the Company (the "Shares") either by way of a private placement, or through participation in a rights issue or other means. As at the date of this announcement, the Company has not entered into any agreement in connection with any proposed subscription of the Shares of the Company by Unicom A Share Company. The Company will publish announcement(s) in due course based on the progress of its discussions with Unicom A Share Company in relation to any proposed subscription of Shares of the Company. In the meantime, shareholders and investors in the Company are advised to exercise caution in dealing in the securities of the Company.

Trading in the Shares of the Company has been halted with effect from 9:00 a.m. on 16 August 2017 pending the publication of announcements containing inside information of the Company. The Company has applied to The Stock Exchange of Hong Kong Limited for the resumption of trading in the Shares with effect from 9:00 a.m. on 21 August 2017.

The English translation of the PRC entities and enterprises and PRC laws and regulations in Chinese is included in this announcement for reference only. In the event of any inconsistency, the Chinese name shall prevail.

By order of the Board

Company Secretary

Hong Kong, 20 August 2017

As at the date of this announcement, the board of directors of the Company comprises: