Group 1 - The core point of the news is the performance and financial details of Sinopec Oilfield Service Corporation, which saw a stock price increase of 5.26% to 2.20 CNY per share, with a trading volume of 335 million CNY and a market capitalization of 41.706 billion CNY [1] - Sinopec Oilfield Service Corporation was established on November 21, 1994, and listed on April 11, 1995. The company specializes in engineering and technical services for oil and gas exploration and development [1] - The revenue composition of Sinopec Oilfield Service includes drilling (49.10%), engineering construction (23.37%), special downhole operations (13.87%), geophysics (4.89%), logging (4.67%), and other services (2.99% and 1.11% for supplementary) [1] Group 2 - From the perspective of major circulating shareholders, Southern Fund's Southern CSI 500 ETF (510500) increased its holdings by 8.3067 million shares in the second quarter, bringing its total to 60.7072 million shares, which accounts for 0.32% of circulating shares [2] - The estimated floating profit from this investment is approximately 6.6778 million CNY [2] - The Southern CSI 500 ETF was established on February 6, 2013, with a current scale of 113.438 billion CNY. It has achieved a year-to-date return of 25.22% and a one-year return of 27.01% [2]

Core Insights - The article highlights the top and bottom AH share premium rates, with Northeast Electric (00042) leading at 918.87% and Ningde Times (03750) at -17.09% [1][2] Summary by Category Top AH Share Premium Rates - Northeast Electric (00042) has a premium rate of 918.87% with a deviation value of 109.61% [2] - Hongye Futures (03678) follows with a premium rate of 246.28% and a deviation value of 16.95% [2] - Zhejiang Shibao (01057) ranks third with a premium rate of 241.04% and a deviation value of 19.03% [2] Bottom AH Share Premium Rates - Ningde Times (03750) has the lowest premium rate at -17.09% with a deviation value of -2.80% [2] - Heng Rui Pharmaceutical (01276) has a premium rate of -1.38% and a deviation value of 1.69% [2] - China Merchants Bank (03968) has a premium rate of 0.51% with a deviation value of -4.32% [2] Top AH Share Deviation Values - Northeast Electric (00042) leads with a deviation value of 109.61% [2] - Changfei Optical Fiber (06869) has a deviation value of 31.51% [2] - Shandong Molong (00568) follows with a deviation value of 26.68% [2] Bottom AH Share Deviation Values - Shanghai Electric (02727) has the lowest deviation value at -25.42% [3] - China National Foreign Trade Transportation Group (00598) has a deviation value of -16.00% [3] - COSCO Shipping Energy Transportation (01138) has a deviation value of -14.18% [3]

中石化石油工程技术服务股份有限公司 关于召开 2025 年第三季度业绩说明会的公告 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： 投资者可于 2025 年 10 月 29 日（星期三）16:00 前登录上证路演中心网站首 页点击"提问预征集"栏目或通过公司邮箱 ir.ssc@sinopec.com 进行提问。公 司将在说明会上对投资者普遍关注的问题进行回答。 中石化石油工程技术服务股份有限公司（以下简称"公司"）拟于 2025 年 10 月 29 日发布公司 2025 年第三季度报告，为便于广大投资者更全面深入地了 解公司 2025 年第三季度经营成果、财务状况，公司计划于 2025 年 10 月 30 日（星 期四）16:00-17:00 举行 2025 年第三季度业绩说明会，就投资者关心的问题进 行交流。 一、 说明会类型 证券代码：600871 证券简称：石化油服 公告编号：2025-033 （一） 会议召开时间：2025 年 10 月 30 日（星期四）16:00-17:00 （二） 会议召开地点：上 ...

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，概不會因本公告全部或任何部份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。 中石化石油工程技術服務股份有限公司 （在中華人民共和國註冊成立之股份有限公司） （股份代號：1033） 沈澤宏 公司秘書 2025年10月15日 於本公告日期，本公司現任董事為吳柏志先生 # 、張建闊先生 # 、章麗莉女士 + 、杜 坤先生 + 、鄭衛軍先生 * 、王鵬程先生 * 、劉江寧女士 * # 執行董事 海外監管公告 此海外監管公告乃根據香港聯合交易所有限公司證券上市規則第 13.10B 條作 出。 茲載列中石化石油工程技術服務股份有限公司在上海證券交易所網站刊登的以 下資料全文，僅供參考。 承董事會命 + 非執行董事 * 獨立非執行董事 证券代码：600871 证券简称：石化油服 公告编号：2025-033 中石化石油工程技术服务股份有限公司 关于召开 2025 年第三季度业绩说明会的公告 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 ...

Core Viewpoint - Recent trading activity shows a decrease in southbound capital holdings in Sinopec Oilfield Service Corporation (01033.HK), with a net reduction of 770,000 shares on October 13, 2025, despite an overall net increase in the past five trading days [1][2]. Group 1: Trading Activity - On October 13, 2025, southbound capital reduced its holdings by 770,000 shares, representing a decrease of 0.10% [2]. - In the last five trading days, there were four days of net increases, totaling 9,484,000 shares [1]. - Over the past 20 trading days, there were nine days of net reductions, amounting to 7,722,000 shares [1]. Group 2: Current Holdings - As of now, southbound capital holds 795 million shares of Sinopec Oilfield Service, which constitutes 14.69% of the company's total issued ordinary shares [1][2]. Group 3: Company Overview - Sinopec Oilfield Service Corporation is engaged in providing comprehensive oil and gas engineering and technical services, operating through five divisions [2]. - The Geophysical Engineering Division offers land and marine geophysical exploration and development technical services [2]. - The Drilling Engineering Division provides design, construction, technical services, and drilling equipment for land and marine drilling [2]. - The Logging Engineering Division conducts engineering contracting and technical services for data collection, monitoring, transmission, processing, and evaluation of oil and gas wells [2]. - The Downhole Operations Engineering Division offers petroleum engineering technical services and construction [2]. - The Engineering Construction Division provides feasibility studies, design, procurement, and construction for land and marine oilfield projects [2].

Core Viewpoint - The stock of Sinopec Oilfield Service Corporation has experienced fluctuations, with a recent decline of 2.33% and a market capitalization of 39.81 billion yuan, while showing a year-to-date increase of 2.94% [1] Financial Performance - For the first half of 2025, Sinopec Oilfield Service achieved a revenue of 37.05 billion yuan, reflecting a year-on-year growth of 0.62%, and a net profit attributable to shareholders of 492 million yuan, which is an increase of 8.95% [2] - The company has distributed a total of 2.08 billion yuan in dividends since its A-share listing, with no dividends paid in the last three years [3] Shareholder Information - As of September 20, 2025, the number of shareholders for Sinopec Oilfield Service decreased by 17.02% to 107,600, with an average of 0 circulating shares per shareholder [2] - The top ten circulating shareholders include Southern CSI 500 ETF, which increased its holdings by 8.31 million shares, while Hong Kong Central Clearing Limited reduced its holdings by 1.33 million shares [3] Stock Performance - The stock price of Sinopec Oilfield Service has shown a slight increase over various time frames: 1.94% over the last five trading days, 3.45% over the last 20 days, and 4.48% over the last 60 days [1]

Core Viewpoint - Ultra High Molecular Weight Polyethylene (UHMWPE) is a critical material in various high-performance applications, particularly in the fields of lithium battery separators and high-strength fibers, driven by the rapid growth of the global electric vehicle industry and geopolitical changes [3][10]. Group 1: Overview of UHMWPE - UHMWPE is a linear thermoplastic engineering plastic with a molecular weight exceeding 1.5 million, known for its exceptional mechanical properties and chemical stability [6][9]. - The material exhibits superior impact resistance, wear resistance, and self-lubrication compared to other engineering plastics [6][7]. Group 2: Global Supply and Demand Analysis - In 2023, global UHMWPE production capacity reached approximately 490,000 tons per year, with Asia accounting for 55.1% of this capacity [11]. - The global demand for UHMWPE has been growing at an annual rate of over 10%, with consumption in 2023 estimated at 486,000 tons, translating to a market size of approximately $7.3 billion [13][15]. Group 3: Domestic Supply and Demand Analysis - As of 2023, China's UHMWPE production capacity is approximately 211,000 tons per year, with a significant focus on lithium battery separators and fiber materials [17][18]. - The apparent consumption of UHMWPE in China for 2023 is estimated at 432,000 tons, with nearly half used for lithium battery separators, reflecting the rapid growth of the electric vehicle sector [21][23]. Group 4: Technological Advances in UHMWPE - The production of UHMWPE primarily utilizes liquid phase slurry polymerization technology, with the Hostalen process being the most widely adopted globally [31][35]. - Recent advancements include the development of continuous loop slurry processes, which have filled a gap in domestic production capabilities [37]. Group 5: Applications of UHMWPE - UHMWPE is increasingly used in lithium battery separators, with a projected consumption of 249,000 tons in 2023, expected to grow at an annual rate of 18% over the next three years [15][23]. - The fiber segment, known for its high strength and corrosion resistance, is projected to see a consumption of 102,000 tons in 2023, with a growth rate of around 10% [15][23]. Group 6: Investment Logic Analysis - The UHMWPE industry presents high growth potential, with significant opportunities in high-end applications such as lithium battery separators and medical-grade materials, where domestic production currently lags behind imports [61][62]. - Investment opportunities are concentrated in high-performance catalysts, specialized resins, and innovative processing technologies that can enhance production efficiency and product quality [62][63].

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，概不會因本公告全部或任何部份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。 中石化石油工程技術服務股份有限公司 承董事會命 沈澤宏 公司秘書 中石化石油工程技術服務股份有限公司 中國.北京 二零二五年十月十日 於本公告日期，本公司現任董事為吳柏志先生 # 、張建闊先生 # 、章麗莉女士 + 、杜坤先生 + 、鄭 衛軍先生 * 、王鵬程先生 * 、劉江寧女士 * （在中華人民共和國註冊成立之股份有限公司） （證券代號：1033） 關於召開董事會會議的通知 中石化石油工程技術服務股份有限公司（「本公司」）董事會（「董事 會」）謹此公佈，本公司將於二零二五年十月二十八日（星期二）召開 董事會會議，藉以（其中包括）審議及批准本公司及其附屬公司截至二 零二五年九月三十日止九個月之未經審計季度業績及其發佈並處理任 何其他事務（如有）。 # 執行董事 + 非執行董事 * 獨立非執行董事 ...

格隆汇10月10日丨中石化油服(01033.HK)公布，公司将于2025年10月28日(星期二)召开董事会会议，藉 以(其中包括)审议及批准公司及其附属公司截至2025年9月30日止九个月的未经审计季度业绩及其发布 并处理任何其他事务(如有)。 ...

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，概不會因本公告全部或任何部份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。 中石化石油工程技術服務股份有限公司 （在中華人民共和國註冊成立之股份有限公司） （證券代號：1033） 關於召開董事會會議的通知 中石化石油工程技術服務股份有限公司（「本公司」）董事會（「董事 會」）謹此公佈，本公司將於二零二五年十月二十八日（星期二）召開 董事會會議，藉以（其中包括）審議及批准本公司及其附屬公司截至二 零二五年九月三十日止九個月之未經審計季度業績及其發佈並處理任 何其他事務（如有）。 沈澤宏 公司秘書 中石化石油工程技術服務股份有限公司 中國.北京 二零二五年十月十日 於本公告日期，本公司現任董事為吳柏志先生 # 、張建闊先生 # 、章麗莉女士 + 、杜坤先生 + 、鄭 衛軍先生 * 、王鵬程先生 * 、劉江寧女士 * # 執行董事 + 非執行董事 * 獨立非執行董事 承董事會命 ...