JY GAS LIMITED — Proxy Solicitation & Information Statement 2022

Jun 23, 2022

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(Incorporated in Bermuda with limited liability)

（於百慕達註冊成立之有限公司）

(Stock code 股份代號 : 603)

24 June 2022

Dear Registered Shareholder(s),

China Oil And Gas Group Limited (the “Company”)

• Special General Meeting (“SGM”) of the Company to be held on Friday, 15 July 2022

The SGM of the Company will be held at Suite 1518, 15th Floor, Xinhai International Business Centre, No. 9 Qianshan Road, Xiangzhou District, Zhuhai City, Guangdong Province, China on Friday, 15 July 2022 at 10:30 a.m.. Shareholders have the option of viewing and listening to the SGM through the live webcast.

To access the live webcast at the SGM

If you choose to view and listen to the SGM through the live webcast, from 10:00 a.m. on Friday, 15 July 2022, you can log in to the SGM online platform by visiting the meeting website and entering the following details:

• Meeting website: http://meetings.computershare.com/ChinaOilAndGas_SGM2022

• Username: your 10-digit shareholder reference number starting with “C” (“SRN”) printed under the barcode on the top right corner of this letter

• Password: the five-digit Personal Identification Number (PIN) printed below the SRN

For corporate shareholders who wish to view and listen to the SGM through the live webcast, please call Computershare Hong Kong Investor Services Limited, the Company’s branch share registrar and transfer office in Hong Kong, at its hotline (852) 2862 8555 for arrangement.

By Order of the Board China Oil And Gas Group Limited Chan Yuen Ying, Stella Company Secretary

* For identification purposes only

各位登記股東：

中油燃氣集團有限公司（「公司」）

• 於 2022 年 7 月 15 日（星期五）舉行之公司股東特別大會（「股東特別大會」）

公司之股東特別大會將於 2022 年 7 月 15 日（星期五）上午 10 時 30 分假座中國廣東省珠海市香洲區前山路 9 號心海州中央 商務中心 15 樓 1518 室舉行。股東可選擇透過網絡直播觀看及參與股東特別大會。

以網絡直播觀看及參與股東特別大會

如 閣下選擇以網絡直播觀看股東特別大會，由 2022 年 7 月 15 日（星期五）上午 10 時開始， 閣下可瀏覽會議網站並輸入 以下資料，以登入股東特別大會網上平台：

• 會議網站： http://meetings.computershare.com/ChinaOilAndGas_SGM2022

• • 登入名稱： 印於本信函右上角條碼下，以字母「 C」開始之 閣下的十位數字股東參考編號 • 密碼： 印於股東參考編號下之五位數字個人識別號碼

• 如 閣下為公司股東並欲以透過網絡直播觀看股東特別大會，請致電公司之香港股份過戶登記分處香港中央證券登記有限公 司（電話熱線 (852) 2862 8555）以便作出安排。

承董事會命 中油燃氣集團有限公司 公司秘書 陳婉縈

2022 年 6 月 24 日

* 僅供識別