中海油服:中海油服H股公告:非登记股东之提示信函及回条-以电子方式发布公司通讯安排的提示信函

(Incorporated in the People’s Republic of China as a joint stock limited liability company)
（在中华人民共和国注册成立的股份有限公司）
（Stock Code 股份代号：2883）
16 April 2025
Dear non-registered shareholder(s),
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.
The Company have not received your functional email address from the Intermediaries. As a non-registered shareholder, to ensure timely
receipt of theActionableCorporateCommunicationsfromtheCompanypursuant to theListing Rules,youshould liaisewithyourbank(s),
broker(s), custodian(s), nominee(s) or HKSCC Nominees Limited through which your Shares are held (collectively, the “Intermediaries”)
and provide your email address to your Intermediaries.
If the Company does not receive your functional email address from the Intermediaries, until such time that the functional email address
is provided to the Intermediaries, you will need to proactively check the Company’s website and the HKExnews website to keep up with
the publication of Corporate Communications.
If you want to receive the Corporate Communications in printed form, please complete and return the enclosed 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 or send an email to chinaoilfieldservices.ecom@computershare.com.hk specifying your name,
address and request to receive the Corporate Communications in printed form.
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
各位非登记股东：
以电子方式发布公司通讯安排的提示信函
根据日期为 2024 年 2 月 28 日有关「以电子方式发布公司通讯之安排」之通知信函所述，中海油田服务股份有限公司（「公司」）谨
此提醒 阁下，公司已采用以电子方式发布公司通讯（「公司通讯」）之安排，该公司通讯是指公司为向其任何证券持有人提供资讯或提醒其采取行动而发布或将要发布的任何文件，包括但不限於(a) 董事报告、年度帐目以及审计报告副本以及财务报告摘要（如适
用）； (b) 中期报告及其中期报告摘要（如适用）； (c) 会议通知； (d) 上市文件； (e) 通函和 (f) 委任表格。
请注意，所有未来公司通讯的英文版和中文版将在公司网站 www.cosl.com.cn 和披露易网站 www.hkexnews.hk 上提供，以代替印刷本。公司尚未有从中介公司收到 阁下就接收公司通讯提供电子邮件地址。作为非登记股东，为确保根据《上市规则》及时收到可供采取行动的公司通讯， 阁下应联络代 阁下持有股份的银行、经纪、托管商、代理人或香港中央结算（代理人）有限公司（统称「中介公司」），并向 阁下的中介公司提供 阁下的电子邮件地址。
如果公司没有从中介公司收到 阁下的有效电子邮件地址，直至中介公司收到 阁下有效的电子邮件地址前， 阁下将需要主动查看公司网站和披露易网站以留意公司通讯的发布。
若 阁下希望收取公司通讯之印刷本，请填妥本函随附之回条并交回公司的香港股份过户登记处（「H 股股份过户处」）香港中央证
券 登 记 有 限 公 司 ， 地 址 为 香 港 湾 仔 皇 后 大 道 东 183 号 合 和 中 心 17M 楼 或 发 送 电 子 邮 件 至
chinaoilfieldservices.ecom@computershare.com.hk，并注明 阁下的姓名、地址以及收取公司通讯印刷版的要求。
如 阁下对本函件有任何疑问，请於办公时间星期一至五（香港公众假期除外）上午 9 时正至下午 6 时正（香港时间）期间致电 H 股
股份过户处(852)2862 8688 查询。
承董事会命
中海油田服务股份有限公司
孙维洲