(Incorporated in the People’s Republic of China as a joint stock limited liability company)
（在中華人民共和國註冊成立的股份有限公司）
（Stock Code 股份代號：2883）
Dear registered shareholder(s),
(Note 1)
Reminder letter regarding the Arrangement of Electronic Dissemination of Corporate Communications
With reference to the notification letter dated 28 February 2024 titled “Arrangement of Electronic Dissemination of Corporate Communications”, China Oilfield
Services Limited (the “Company”) is writing to remind you that the Company has adopted electronic dissemination of corporate communications (the “Corporate
Communications”), which mean any documents issued or to be issued by the Company for the information or action of holders of any of its securities, including
but not limited to (a) the directors’ report, its annual accounts together with a copy of the auditors’ report and, where applicable, its summary financial report; (b)
the interim report and, where applicable, its summary interim report; (c) a notice of meeting; (d) a listing document; (e) a circular and (f) a proxy form.
Please note that both the English and Chinese versions of all future Corporate Communications will be available electronically on the website of the Company at
www.cosl.com.cn and the HKEXnews website at www.hkexnews.hk in place of printed copies.
Solicitation of electronic contact details
The Company have not received your email address for the electronic dissemination of Corporate Communications. To ensure timely receipt of the Actionable
Corporate Communications, the Company recommends you provide your email address by scanning your personalized QR code printed on the enclosed reply form
(the “Reply Form”). Alternatively, you may sign and return the Reply Form to the Company’s Hong Kong share registrar (the “H Share Registrar”), Computershare
Hong Kong Investor Services Limited, at 17M Floor, Hopewell Centre, 183 Queen’s Road East, Wan Chai, Hong Kong.
If the Company does not receive your functional email address, until such time that the functional email address is provided to the H Share Registrar, the
Company will send the Actionable Corporate Communications in printed form in the future (Note 2).
If you want to receive the Corporate Communications in printed form, please complete the enclosed Reply Form and send it to the H Share Registrar or send an
email to chinaoilfieldservices.ecom@computershare.com.hk specifying your name, address and request to receive the Corporate Communications in printed form.
Please note that such instruction shall be valid for one year starting from the receipt date of your instruction and will expire thereafter.
Should you have any queries relating to this letter, please contact the H Share Registrar at (852)2862 8688 during business hours from 9:00 a.m. to 6:00 p.m. (Hong
Kong time), Mondays to Fridays, excluding Hong Kong public holidays.
Yours faithfully,
By order of the Board
China Oilfield Services Limited
Sun Weizhou
Company Secretary
Note 1: This letter is addressed to registered shareholders of the Company who have not yet provided an email address for the timely receipt of Actionable Corporate
Communications. If you are a new registered shareholder, please read the arrangement for the electronic dissemination of corporate communications below and provide
your email address as recommended.
Note 2: Actionable Corporate Communication is any corporate communication that seeks instructions from issuer’s securities holders on how they wish to exercise their rights or
make an election as the issuer’s securities holder.
各位登記股東：
以電子方式發布公司通訊安排的提示信函（附註 1）
根據日期為 2024 年 2 月 28 日有關「以電子方式發布公司通訊之安排」之通知信函所述，中海油田服務股份有限公司（「公司」）謹此提醒 閣下，公
司已採用以電子方式發布公司通訊（「公司通訊」）之安排，該公司通訊是指公司為向其任何證券持有人提供資訊或提醒其採取行動而發布或將要發布
的任何文件，包括但不限於(a) 董事報告、年度帳目以及審計報告副本以及財務報告摘要（如適用）； (b) 中期報告及其中期報告摘要（如適用）； (c)
會議通知； (d) 上市文件； (e) 通函和 (f) 委任表格。
請注意，所有未來公司通訊的英文版和中文版將在公司網站 www.cosl.com.cn 和披露易網站 www.hkexnews.hk 上提供，以代替印刷本。
徵集電子聯絡資料
公司尚未收到 閣下就接收公司通訊提供電子郵件地址。為確保及時收到可供採取行動的公司通訊，公司建議 閣下透過掃描本函隨附之回條（「回
條」）上列印的 閣下專屬二維碼來提供 閣下的電子郵件地址。或者， 閣下也可以簽署回條並交回公司的香港股份過戶登記處（「H 股股份過戶
處」）香港中央證券登記有限公司，地址為香港灣仔皇后大道東 183 號合和中心 17M 樓。
如果公司沒有收到 閣下的有效電子郵件地址，直至 H 股股份過戶處收到 閣下有效的電子郵件地址前，公司未來將以印刷本形式發送可供採取行動
的公司通訊（附註 2） 。
若 閣 下 希 望 收 取 日 後 公 司 通 訊 之 印 刷 本 ， 請 填 妥 隨 附 之 回 條 並 交 予 H 股 股 份 過 戶 處 或 發 送 電 子 郵 件 至
chinaoilfieldservices.ecom@computershare.com.hk，並註明 閣下的姓名、地址以及收取公司通訊印刷版的要求。 請注意，收取日後公司通訊印刷版
之指示由收悉 閣下指示當日起計一年內有效，此後將過期。
如 閣下對本函件有任何疑問，請於辦公時間星期一至五（香港公眾假期除外）上午 9 時正至下午 6 時正（香港時間）期間致電 H 股股份過戶處(852)2862
承董事會命
中海油田服務股份有限公司
孫維洲
公司秘書
謹啟
附註 1: 此函件致尚未提供電子郵件地址以接收可供採取行動的公司通訊之公司登記股東。若閣下為新登記股東，請閱讀以下以電子方式發佈公司通訊的安排，並按建
議提供閣下的電子郵件地址。
附註 2: 可供採取行動的公司通訊指任何涉及要求發行人的證券持有人指示其擬如何行使其有關證券持有人的權利或作出選擇的公司通訊。
CCS4381 COSH
REPLY FORM 回條
To: Computershare Hong Kong Investor Services Limited 致： 香港中央證券登記有限公司
(The “H Share Registrar”) （
「H 股股份過戶處」）
(Please choose ONLY ONE of the options below)
(請從以下選項中只選擇其中一項)
Personalized QR Code
專屬二維碼
Option 1: Provide your email address for receipt of future Actionable Corporate Communications (Note 3) of
the Company via electronic dissemination by scanning your personalized QR code
選項 1： 掃瞄 閣下專屬二維碼提供 閣下之電子郵件地址，以接收公司通過電子方式
發佈可供採取行動的未來公司通訊(附註 3)
You are NOT required to return this Reply Form if you choose Option 1.
如選擇了選項 1， 閣下無須交回本回條。
Option 2: I/we hereby provide my/our email address in writing for receipt of future Actionable Corporate Communications (Note 3) of the following listed company
(the “Company”) via electronic dissemination
選項 2： 本人/吾等現以書面提供本人/吾等之電子郵件地址，以確保收到以下上市公司（「公司」）通過電子方式發佈可供採取行動的未來公司通訊(附註 3)
Name of Securities holder(s) 證券持有人姓名 : Name of the listed company 上市公司名稱 :
China Oilfield Services Limited
中海油田服務股份有限公司
Email address 電郵地址: (Notes 3 / 附註 3)
Option 3: I/we hereby request for receipt of Corporate Communications* in printed form and noted that this instruction shall be valid for one year unless being revoked or
superseded (whichever is earlier) starting from the receipt date of the instruction and will expire thereafter. (Note 5) (Please mark “” in the below box if applicable)
選項 3： 本人/吾等現要求收取公司通訊*印刷版，並已知悉本指示自收取指示之日起計一年內有效，除非被撤銷或取代（以較早者為準），此後將過期。(附註 5) （如適用，
請在以下方格內劃上「」號）
□
English Version 英文版 □ Chinese Version 中文版 □ English and Chinese Version 英文版及中文版
(Notes 1)
Signature(s): Contact number: Date:
簽名： (附註 1) 聯絡電話號碼： 日期：
Notes 附註：
請清楚填妥 閣下之所有資料。如屬聯名股東，則本回條須由所有聯名股東聯合簽署，方為有效。
任何回條若未有簽署或在其他方面填寫不正確，則本回條將會作廢。
is any corporate communication that seeks instructions from issuer’s securities holders on how they wish to exercise their ri ghts or make an election as the issuer’s securities holder.
如公司沒有收到 閣下的有效電子郵件地址， 閣下將無法收到有關發佈可供採取行動的公司通訊的通知。可供採取行動的公司通訊指任何涉及要求發行人的證券持有人指示其擬如何行使其有關 證券持有人的權利
或作出選擇的公司通訊。
如 閣下通過二維碼、電郵、回條及/或其他方式提供多於一個的電子郵件地址，只有 閣下最後提供的電子郵件地址將會被用於登記。
如 閣下在選項 3 方格內劃上「」號，將不會有電子郵件地址被登記，只有公司通訊*的印刷版會被收取。
為免存疑，在本回條上的任何額外指示，公司將不予處理。
* Unless otherwise specified, Corporate Communications refer to any documents issued or to be issued by the Company for the information or action of holders of any of its securities, including but not limited to the annual
report, interim report, notice of meeting, circular and proxy form.
除非另有註明，公司通訊乃指公司已發出或將予發出以供其任何證券的持有人參照或採取行動的任何文件，其中包括但不限於年報、中期報告、會議通告、通函及代表委任表格。
PERSONAL INFORMATION COLLECTION STATEMENT
收集個人資料聲明
(i) “Personal Data” in this statement has the same meaning as “personal data” in the Personal Data (Privacy) Ordinance, Chapter 48 6 of the Laws of Hong Kong (“PDPO”).
本聲明中所指的「個人資料」與香港法例第 486 章《個人資料（私隱）條例》（「《私隱條例》」）中「個人資料」的涵義相同。
(ii) Your Personal Data provided in this Reply Form will be used in connection with, including but not limited to, the Company’s electronic dissemination of Corporate Communications and to liaise with you on other matters
relating to your holdings in the Company. Your supply of Personal Data to the Company is on a voluntary basis. In case of a failure to provide sufficient information, the Company may not be able to process your instruction
and/or request as stated in this Reply Form.
閣下於本回條所提供的個人資料將用於(包括但不限於)有關公司以電子方式發布公司通訊及就 閣下持有的公司證券有關的其他事宜上與 閣下聯絡。 閣下是自願向本公司提供個人資料。若 閣下未能提供足夠資料，
本公司可能無法處理 閣下在本回條上所述的指示及/或要求。
(iii) Your Personal Data may be disclosed or transferred by the Company to its subsidiaries, the H Share Registrar, and/or other companies or bodies for any of the stated purposes, or when it is required to do so by law and
will be retained for such period as may be necessary for our verification and record purposes.
公司可就任何所說明的用途或在法例規定的情況下，將 閣下的個人資料披露或轉移給公司的附屬公司、H 股股份過戶處、及/或其他公司或團體，並將在適當期間保留該等個人資料作核實及紀錄用途。
(iv) You have the right to request access to and/or correction of your Personal Data in accordance with the provisions of the PDPO. Any such request for access to and/or correction of your Personal Data
should be in writing, by mail to the Hong Kong Privacy Officer of the H Share Registrar at 17M Floor, Hopewell Centre, 183 Queen’s Road East, Wanchai, Hong Kong or by email at
PrivacyOfficer@computershare.com.hk.
閣下有權根據《私隱條例》的條文查閱及/或修改 閣下的個人資料。任何該等查閱及/或修改個人資料的要求均須以書面方式郵寄至 H 股股份過戶處（地址為香港灣仔皇后大道東 183 號合和中心 17M 樓）向香港隱
私主任提出，或發送電郵至 PrivacyOfficer@computershare.com.hk。
Mailing Label 郵 寄 標 籤
Please cut the mailing label and stick it on an envelope to return this form to us.
Computershare Hong Kong Investor Services Limited No postage is necessary if posted in Hong Kong.
香港中央證券登記有限公司
Freepost No. 簡便回郵號碼：37 當 閣下寄回此回條時，請將郵寄標籤剪貼於信封上。
Hong Kong 香港 如在本港投寄， 閣下無需支付郵費或貼上郵票。
