Group 1 - The core point of the article highlights the recent trading activity of Sinopec Oilfield Service Corporation (01033.HK), indicating a reduction in holdings by southbound funds on December 3, with a decrease of 3.528 million shares, representing a 0.40% change [1][2] - Over the past five trading days, there were three days of net increases in holdings by southbound funds, totaling an increase of 14.316 million shares [1] - In the last 20 trading days, there were 12 days of net increases, with a cumulative increase of 49.032 million shares, indicating a generally positive trend in investor sentiment towards the company [1] Group 2 - As of December 3, southbound funds hold a total of 875 million shares of Sinopec Oilfield Service, which accounts for 16.15% of the company's total issued ordinary shares [1] - The company operates in five segments, including geophysical engineering, drilling engineering, logging engineering, downhole operations, and engineering construction, providing comprehensive oil and gas engineering and technical services [2]

声明：市场有风险，投资需谨慎。本文为AI基于第三方数据生成，仅供参考，不构成个人投资建议。 国家知识产权局信息显示，中石化石油工程技术服务有限公司取得一项名为"一种基于锂皂石-氧化石墨 烯复合材料的钻井液封堵剂及其制备方法及应用"的专利，授权公告号CN 117431046 B，申请日期为 2022年7月。 天眼查资料显示，中石化石油工程技术服务有限公司，成立于2012年，位于北京市，是一家以从事研究 和试验发展为主的企业。企业注册资本400000万人民币。通过天眼查大数据分析，中石化石油工程技术 服务有限公司共对外投资了1家企业，参与招投标项目31次，专利信息2507条，此外企业还拥有行政许 可4个。 来源：市场资讯 ...

中石化石油工程技术服务股份有限公司 二○二五年第一次临时股东会会议资料 二○二五年十二月 目 录 | 序号 | 文件名称 | 页码 | | --- | --- | --- | | 1 | 2025 年第一次临时股东会议程 | 1 | | 2 | 关于修订《公司章程》及其附件暨取消监事会的议案 | 3 | | 3 | 关于公司使用公积金弥补亏损的议案 | 6 | | 4 | 关于选举王敏生先生为公司第十一届董事会非执行 | 9 | | | 董事的议案 | | 中石化石油工程技术服务股份有限公司 2025 年第一次临时股东会议程 二○二五年十二月十八日 召开方式：现场投票和网络投票（A 股股东适用）相结 合 现场会议召开日期及时间：2025 年 12 月 18 日 9 点 30 分 网络投票日期及时间：2025 年 12 月 18 日。采用上海 证券交易所网络投票系统，通过交易系统投票平台的投票时 间 为 股 东 会 召 开 当 日 的 交 易 时 间 段 ， 即 9:15-9:25 ， 9:30-11:30，13:00-15:00；通过互联网投票平台的投票时 间为股东会召开当日的 9:15-15:00。 现场会 ...

Core Insights - The oil service engineering sector experienced a slight increase of 0.13% on December 2, with Haiyou Development leading the gains [1] - The Shanghai Composite Index closed at 3897.71, down 0.42%, while the Shenzhen Component Index closed at 13056.7, down 0.68% [1] Stock Performance - Haiyou Development (600968) closed at 3.86, up 1.58% with a trading volume of 596,000 shares and a transaction value of 228 million yuan [1] - Haiyou Engineering (600583) closed at 5.54, up 1.28% with a trading volume of 441,300 shares and a transaction value of 244 million yuan [1] - Other notable stocks include: - Dongsi Thought (601808) at 14.41, up 0.84% [1] - Zhongyou Engineering (600339) at 3.40, unchanged [1] - Beiken Energy (002828) at 12.18, down 0.49% [1] - Shihua Oil Service (600871) at 2.33, down 0.85% [1] - Tongyuan Petroleum (300164) at 6.05, down 1.31% [1] - Huibo Yin (002554) at 3.55, down 1.66% [1] - Zhongman Petroleum (603619) at 22.24, down 1.94% [1] - Bomai Ke (603727) at 15.35, down 2.17% [1] Capital Flow - The oil service engineering sector saw a net outflow of 210 million yuan from institutional investors, while retail investors contributed a net inflow of 248 million yuan [2][3] - Key stocks with significant capital flow include: - Tongyuan Petroleum (300164) with a net outflow of 40.06 million yuan from institutional investors [3] - Renji Co. (002629) with a net outflow of 33.28 million yuan from institutional investors [3] - Zhongman Petroleum (603619) with a net outflow of 26.94 million yuan from institutional investors [3] - Huibo Yin (002554) with a net outflow of 21.44 million yuan from institutional investors [3] - Haiyou Engineering (600583) with a net outflow of 20.98 million yuan from institutional investors [3]

中石化华东石油工程有限公司，成立于2012年，位于南京市，是一家以从事土木工程建筑业为主的企 业。企业注册资本86429.68万人民币。通过天眼查大数据分析，中石化华东石油工程有限公司共对外投 资了3家企业，参与招投标项目2405次，财产线索方面有商标信息1条，专利信息282条，此外企业还拥 有行政许可52个。 声明：市场有风险，投资需谨慎。本文为AI基于第三方数据生成，仅供参考，不构成个人投资建议。 来源：市场资讯 国家知识产权局信息显示，中石化石油工程技术服务股份有限公司、中石化华东石油工程有限公司取得 一项名为"页岩油气水平井防埋钻进管柱及多掉块地层解卡工艺"的专利，授权公告号CN119957080B， 申请日期为2023年11月。 天眼查资料显示，中石化石油工程技术服务股份有限公司，成立于1994年，位于北京市，是一家以从事 开采专业及辅助性活动为主的企业。企业注册资本1898434.0033万人民币。通过天眼查大数据分析，中 石化石油工程技术服务股份有限公司共对外投资了14家企业，参与招投标项目153次，财产线索方面有 商标信息1条，专利信息5000条，此外企业还拥有行政许可2个。 ...

Core Insights - The oil service engineering sector experienced a rise of 1.78% on December 1, with Keli Co., Ltd. leading the gains [1] - The Shanghai Composite Index closed at 3914.01, up 0.65%, while the Shenzhen Component Index closed at 13146.72, up 1.25% [1] Stock Performance - Keli Co., Ltd. (code: 920088) closed at 32.01, with a gain of 6.17% and a trading volume of 39,200 shares, amounting to a transaction value of 123 million yuan [1] - Tongyuan Petroleum (code: 300164) closed at 6.13, up 5.69%, with a trading volume of 1,137,300 shares and a transaction value of 687 million yuan [1] - Zhun Oil Co., Ltd. (code: 002207) closed at 8.68, increasing by 4.20%, with a trading volume of 320,300 shares and a transaction value of 277 million yuan [1] - Other notable performers include Shihua Oil Service (code: 600871) with a 3.07% increase and a closing price of 2.35, and Tian Sihua (code: 601808) with a 2.29% increase, closing at 14.29 [1] Fund Flow Analysis - The oil service engineering sector saw a net outflow of 113 million yuan from institutional investors, while retail investors contributed a net inflow of 168 million yuan [2] - Keli Co., Ltd. had a net inflow of 11.38 million yuan from institutional investors, representing 9.25% of its total trading volume [3] - Other companies like Haiyou Development (code: 600968) and Tongyuan Petroleum experienced mixed fund flows, with Haiyou Development seeing a net inflow of 10.62 million yuan from institutional investors [3]

呈交日期: 2025年12月1日 I. 法定/註冊股本變動 股份發行人及根據《上市規則》第十九B章上市的香港預託證券發行人的證券變動月報表 截至月份: 2025年11月30日 狀態: 新提交 致：香港交易及結算所有限公司 公司名稱: 中石化石油工程技術服務股份有限公司 | 1. 股份分類 | 普通股 | 股份類別 | A | | | 於香港聯交所上市 (註1) | | 否 | | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 證券代號 (如上市) | 600871 | 說明 | 於上海證券交易所 | | | | | | | | | | 法定/註冊股份數目 | | | 面值 | | | 法定/註冊股本 | | | 上月底結存 | | | 13,569,378,551 | RMB | | | 1 RMB | | 13,569,378,551 | | 增加 / 減少 (-) | | | | | | | RMB | | | | 本月底結存 | | | 13,569,378,551 | RMB | | | 1 RMB | | 13,569 ...

Market Overview - The oil service engineering sector increased by 0.47% on November 28, with Beiken Energy leading the gains [1] - The Shanghai Composite Index closed at 3888.6, up 0.34%, while the Shenzhen Component Index closed at 12984.08, up 0.85% [1] Stock Performance - Beiken Energy (002828) closed at 12.21, up 5.35% with a trading volume of 395,000 shares and a turnover of 477 million yuan [1] - Huibo Yin (002554) closed at 3.66, up 5.17% with a trading volume of 454,800 shares and a turnover of 164 million yuan [1] - Zhun Oil Co. (002207) closed at 8.33, up 4.52% with a trading volume of 294,100 shares and a turnover of 242 million yuan [1] - Tongyuan Petroleum (300164) closed at 5.80, up 4.13% with a trading volume of 713,900 shares and a turnover of 410 million yuan [1] - Other notable performers include Keli Co. (920088) and Qian Neng Heng Xin (300191), with increases of 2.20% and 1.86% respectively [1] Capital Flow - The oil service engineering sector saw a net inflow of 91.91 million yuan from institutional investors, while retail investors experienced a net outflow of 74.93 million yuan [2] - The overall capital flow indicates a mixed sentiment, with institutional investors showing confidence while retail investors withdrew funds [2] Individual Stock Capital Flow - Tongyuan Petroleum (300164) had a net outflow of 32.24 million yuan from institutional investors, indicating a lack of confidence [3] - Zhun Oil Co. (002207) experienced a net inflow of 17.01 million yuan from institutional investors, suggesting positive sentiment [3] - Beiken Energy (002828) saw a net inflow of 12.63 million yuan from institutional investors, reflecting strong interest [3]

Group 1 - The core point of the article is that China Petroleum & Chemical Corporation (Sinopec) and its subsidiary, Sinopec Yizheng Chemical Fiber Company, have been granted a patent for a short-process reaction device and method for producing polyester for bottles, with the patent number CN 116459747 B and application date of January 2022 [1] Group 2 - China Petroleum & Chemical Corporation was established in 2000 and is based in Beijing, primarily engaged in oil and gas extraction [1] - The registered capital of China Petroleum & Chemical Corporation is approximately 121.74 billion RMB [1] - The company has invested in 268 enterprises and participated in 5,000 bidding projects, with 45 trademark records and 5,000 patent records [1] - Additionally, the company holds 41 administrative licenses [1]

Core Viewpoint - Yizheng Chemical Fiber has received two awards for its technological innovations in PBT and biodegradable polyester, highlighting its contributions to reducing plastic pollution and promoting green agricultural development [1] Group 1: Technological Innovations - The project on PBT and biodegradable high-performance polyester plays a significant role in reducing plastic pollution and advancing green agricultural development [1] - The PBT-based products were showcased at the Beijing Winter Olympics in 2022, supporting the "Green Olympics" initiative [1] - In 2024, the promotion of biodegradable PBT products is set to expand in regions such as Inner Mongolia and Liaoning [1] Group 2: Product Applications - The development of aramid fiber blended flame-retardant and anti-static clothing represents a new application of aramid fibers in protective gear [1] - The flame-retardant clothing, branded as Yites, has achieved industrial production and is being sold to multiple enterprises, noted for its excellent protection and comfort [1]