证券代码：601808 证券简称：中海油服 公告编号：临2025-018 中海油田服务股份有限公司 关于召开 2025 年半年度业绩说明会的公告 特别提示 本公司董事会及全体董事保证本公告内容不存在任何虚假记载、误导性陈述或者重 大遗漏，并对其内容的真实性、准确性和完整性承担法律责任。 重要内容提示： 会议召开时间：2025年8月27日（星期三）10:00-11:00 会议召开地点：香港中区法院道太古广场港岛香格里拉酒店5楼香岛殿C 会议召开方式：现场结合电话会议 电话会议拨入号码： 如投资者决定通过电话参加会议，请联系SPRG_COSL@sprg.com.hk或致电(852) 2864 4890、（852）2114 2825、（852）2864 4894获取电话会议拨入密码。 投资者可于2025年8月21日（星期四）23:59前将相关问题通过电子邮件的形式发 送至中海油田服务股份有限公司（下称"本公司"或"公司"）投资者关系邮箱： cosl@cosl.com.cn。本公司将于2025年半年度业绩说明会（以下简称"本次业绩 说明会"）上对投资者普遍关注的问题进行回答。 会，就投资者普遍关心的问题进行交流。 一 ...

Company Overview - China Oilfield Services Limited (COSL) is a major integrated oilfield service provider globally, offering services across all stages of offshore oil and gas exploration, development, and production [1] - COSL's business is divided into four main categories: geophysical exploration services, drilling services, oilfield technical services, and marine services [1] Stock Performance - On August 14, the Shanghai Composite Index fell by 0.46%, closing at 3666.44 points, while the Hang Seng Index decreased by 0.37%, closing at 25519.32 points [1] - COSL's A-shares closed at 13.87 yuan, down by 1.0%, and its H-shares closed at 7.19 Hong Kong dollars, down by 0.28% [1] - The A/H premium for COSL reached 111.03%, ranking it 20th among AH shares in terms of premium rate [1] Listing Information - COSL was publicly listed on the Hong Kong Stock Exchange on November 20, 2002, under the stock code 2883 [1] - The company began trading in the U.S. over-the-counter market as American Depositary Receipts (ADRs) on March 26, 2004, with the stock code CHOLY [1] - COSL's A-shares were listed on the Shanghai Stock Exchange on September 28, 2007, under the stock code 601808 [1]

香港交易及結算所有限公司及香港聯合交易所有限公司對本公告的內容概不負責，對其 準確性或完整性亦不發表任何聲明，並明確表示，概不對因本公告全部或任何部分內容 而產生或因倚賴該等內容而引致的任何損失承擔任何責任。 2883 孫維洲 公司秘書 二零二五年八月十四日 - 1 - 中海油田服務股份有限公司（「本公司」）擬於2025年8月26日在香港聯合交易所有限公司網 站(https://www.hkexnews.hk)公佈本公司2025年中期業績公告。為了便於廣大投資者更全 面深入地了解本公司2025年中期業績和經營情況，本公司擬於2025年8月27日（星期三） 10:00-11:00召開業績說明會（「本次業績說明會」），就投資者普遍關心的問題進行交流。 本公司董事長兼首席執行官趙順強先生，副總裁兼公司秘書孫維洲先生，首席財務官郄 佶先生及一名獨立非執行董事將出席本次業績說明會（如有特殊情況，參會人員可能調 整）。 本次業績說明會召開後，本公司將通過本公司網站(https://www.cosl.com.cn)「投資者關係」 專欄分享本次業績說明會的有關資料，向投資者介紹本次業績說明會的有關情況。 承董事會命 本次業績 ...

Market Overview - The oil service engineering sector experienced a decline of 1.49% on August 14, with Renji Co. leading the drop [1] - The Shanghai Composite Index closed at 3666.44, down 0.46%, while the Shenzhen Component Index closed at 11451.43, down 0.87% [1] Stock Performance - Notable stock performances included: - Bomaike (603727) rose by 3.39% to a closing price of 14.66 [1] - Other companies such as CNOOC Engineering (600583) and China Oil Engineering (600339) saw declines of 0.52% and 2.52%, respectively [1] - The trading volume and turnover for selected stocks were significant, with CNOOC Development (600968) recording a turnover of 3.45 billion yuan [1] Capital Flow - The oil service engineering sector saw a net outflow of 182 million yuan from main funds, while retail investors contributed a net inflow of 171 million yuan [2] - Specific stock capital flows included: - CNOOC Development (600968) had a main fund net inflow of 28.04 million yuan, but a net outflow from retail investors of 6.38 million yuan [2] - Bomaike (603727) experienced a main fund net inflow of 16.58 million yuan, with retail investors showing a net outflow of 19.67 million yuan [2] - The overall trend indicates a mixed sentiment among different investor types within the sector [2]

Group 1 - The Shanghai Composite Index rose by 0.48% to close at 3683.46 points, while the Hang Seng Index increased by 2.58% to 25613.67 points [1] - China Oilfield Services Limited (COSL) has an AH premium of 112.57%, ranking 19th among AH stocks in terms of premium rate [1] - COSL's A-shares closed at 14.01 yuan, remaining flat, while its H-shares closed at 7.21 Hong Kong dollars, up by 0.14% [1] Group 2 - COSL is recognized as a large-scale integrated oilfield service provider globally, offering services across all stages of offshore oil and gas exploration, development, and production [1] - The company's business is divided into four main categories: geophysical exploration services, drilling services, oilfield technical services, and marine services [1] - COSL was publicly listed on the Hong Kong Stock Exchange on November 20, 2002, and began trading on the Shanghai Stock Exchange on September 28, 2007 [1]

Market Performance - On August 13, the oil service engineering sector rose by 0.75% compared to the previous trading day, with CNOOC Development leading the gains [1] - The Shanghai Composite Index closed at 3683.46, up 0.48%, while the Shenzhen Component Index closed at 11551.36, up 1.76% [1] Individual Stock Performance - CNOOC Development (600968) closed at 4.15, with a gain of 3.23% and a trading volume of 1.7567 million shares, amounting to a transaction value of 730 million yuan [1] - Other notable stocks included PetroChina Oilfield Services (600871) with a closing price of 2.05, up 0.99%, and Zhongman Petroleum (619609) at 19.79, up 0.61% [1] - Conversely, stocks like Renji Co. (002629) and Zhongyou Engineering (600339) saw slight declines of 0.27% and 0.28%, respectively [1] Capital Flow Analysis - The oil service engineering sector experienced a net outflow of 122 million yuan from institutional investors, while retail investors saw a net inflow of 207 million yuan [2] - The overall capital flow indicates a mixed sentiment, with institutional investors pulling back while retail investors increased their positions [2] Detailed Capital Flow for Key Stocks - CNOOC Development had a net inflow of 49.2 million yuan from institutional investors, while retail investors contributed a net inflow of 6.55 million yuan [3] - In contrast, stocks like Renji Co. and Zhongyou Engineering faced net outflows from both institutional and retail investors, indicating weaker demand [3] - The data suggests that while some stocks are attracting retail interest, institutional investors are more cautious, leading to varied performance across the sector [3]

Company Overview - China Oilfield Services Limited (COSL) is a major integrated oilfield service provider globally, offering services across all stages of offshore oil and gas exploration, development, and production [1] - COSL's business is divided into four main categories: geophysical exploration services, drilling services, oilfield technical services, and marine services [1] Stock Performance - On August 12, the Shanghai Composite Index rose by 0.5%, closing at 3665.92 points, while the Hang Seng Index increased by 0.25%, closing at 24969.68 points [1] - COSL's A-shares closed at 14.01 yuan, with an increase of 0.79%, while its H-shares closed at 7.2 Hong Kong dollars, up by 1.84% [1] A/H Share Premium - COSL's A/H share premium reached 112.43%, ranking it 22nd among A/H shares in terms of premium rate [1][2]

Group 1 - The combustible ice concept index declined by 0.10% as of the market close on August 11, ranking among the top decliners in the concept sector [1] - Within the combustible ice sector, major decliners included Guangzhou Development, Nanjing Steel, and Sinopec, while notable gainers were Deshi Co., Haimer Technology, and Petrochemical Machinery, with increases of 1.71%, 0.94%, and 0.86% respectively [1] - The net inflow of main funds into the combustible ice concept was 2.42 million yuan, with five stocks experiencing net outflows, led by Sinopec with a net outflow of 24.15 million yuan [2] Group 2 - The top gainers in the market included PEEK materials with a rise of 5.99%, MicroLED concept at 3.32%, and Tianjin Free Trade Zone at 3.27%, while the combustible ice concept was down by 0.10% [2] - The main funds' net inflow leaders included Guangzhou Development, Petrochemical Oil Service, and Petrochemical Machinery, with net inflows of 39.55 million yuan, 11.29 million yuan, and 9.63 million yuan respectively [2] - The outflow list for the combustible ice concept included Sinopec, with a decline of 1.05% and a turnover rate of 0.13%, followed by other companies like China International Marine Containers and Potential Energy Holdings [2]

Group 1 - The Shanghai Composite Index rose by 0.34% to close at 3647.55 points, while the Hang Seng Index increased by 0.19% to 24906.81 points [1] - China Oilfield Services Limited (COSL) has an AH premium of 114.89%, ranking 21st among AH shares [1] - COSL's A-shares closed at 13.9 yuan, down 0.79%, and H-shares closed at 7.07 HKD, down 0.28% [1] Group 2 - COSL is a major integrated oilfield service provider globally, offering services across all stages of offshore oil and gas exploration, development, and production [1] - The company's business is divided into four main categories: geophysical exploration services, drilling services, oilfield technical services, and marine services [1] - COSL was publicly listed on the Hong Kong Stock Exchange on November 20, 2002, and has been trading in the U.S. OTC market since March 26, 2004, and on the Shanghai Stock Exchange since September 28, 2007 [1]

Oil Market Overview - Brent and WTI crude oil futures averaged $67.4 and $64.9 per barrel respectively, down $4.2 and $3.6 from the previous week [2] - Total U.S. crude oil inventory stands at 830 million barrels, with commercial inventory at 420 million barrels, strategic inventory at 400 million barrels, and Cushing inventory at 20 million barrels, showing changes of -2.79 million, -3.03 million, +0.23 million, and +0.45 million barrels respectively [2] - U.S. crude oil production is at 13.28 million barrels per day, a decrease of 30,000 barrels per day from the previous week [2] - U.S. refinery crude oil processing volume is 17.12 million barrels per day, an increase of 210,000 barrels per day, with a refinery utilization rate of 96.9%, up 1.5 percentage points [2] Refined Products - Average prices for gasoline, diesel, and jet fuel in the U.S. are $88, $96, and $89 per barrel respectively, down $3.9, $5.2, and $5.1 from the previous week [3] - U.S. gasoline, diesel, and jet fuel inventories are at 230 million, 110 million, and 40 million barrels respectively, with changes of -1.32 million, -0.57 million, and +0.97 million barrels [4] - Production of gasoline, diesel, and jet fuel in the U.S. is at 980,000, 511,000, and 198,000 barrels per day respectively, with changes of -24, -10, and +11 thousand barrels per day [5] - Consumption of gasoline, diesel, and jet fuel in the U.S. is at 904,000, 372,000, and 171,000 barrels per day respectively, with changes of -11, +12, and -39 thousand barrels per day [6] Trade Dynamics - U.S. gasoline imports, exports, and net exports are 120,000, 950,000, and 820,000 barrels per day respectively, with changes of +1, +6, and +5 thousand barrels per day [6] - U.S. diesel imports, exports, and net exports are 80,000, 1.55 million, and 1.47 million barrels per day respectively, with changes of -15, +23, and +38 thousand barrels per day [6] - U.S. jet fuel imports, exports, and net exports are 0, 140,000, and 140,000 barrels per day respectively, with changes of -6, 0, and +6 thousand barrels per day [6] Related Companies - Recommended companies include China National Offshore Oil Corporation (CNOOC), China Petroleum & Chemical Corporation (Sinopec), and China National Petroleum Corporation (PetroChina) [6]