Core Insights - The article highlights the top and bottom AH premium rates for various stocks, indicating significant discrepancies between H-shares and A-shares [1][2][3] Group 1: Top AH Premium Rates - Northeast Electric (00042) leads with a premium rate of 847.37%, followed by Sinopec Oilfield Service (01033) at 270.27% and Hongye Futures (03678) at 269.94% [1][2] - Zhejiang Shibao (01057) and Fudan Zhangjiang (01349) also show high premium rates of 263.16% and 250.00% respectively [2] Group 2: Bottom AH Premium Rates - The lowest premium rates are observed in CATL (03750) at -4.68%, China Merchants Bank (03968) at -1.05%, and Heng Rui Medicine (01276) at 4.32% [1][2] - Other companies like WuXi AppTec (02359) and Midea Group (00300) also show modest premium rates of 5.49% and 5.97% respectively [2] Group 3: Top AH Deviation Values - Guanghe Tong (00638) has the highest deviation value at 32.28%, followed by Beijing Jingcheng Machinery Electric (00187) at 21.40% and Fudan Zhangjiang (01349) at 17.42% [1][3] - Nanjing Panda Electronics (00553) also shows a significant deviation value of 17.34% [3] Group 4: Bottom AH Deviation Values - The lowest deviation values are recorded for Zhongwei New Materials (02579) at -23.92%, Longpan Technology (02465) at -15.25%, and Anhui Wanshan Expressway (00995) at -12.36% [1][3] - Other companies like Ganfeng Lithium (01772) and China Life (02628) also show negative deviation values of -11.85% and -9.94% respectively [3]

Core Viewpoint - The company is focusing on expanding its capabilities in new energy sectors such as CCUS and hydrogen energy, while also achieving significant growth in overseas contracts and maintaining a strong position in domestic operations. Group 1: New Energy Development - The company is leading in technology services for CCUS and hydrogen pipeline construction, with plans to accelerate the development of new energy technologies [1] - It has successfully established a complete technology chain for CO2 capture, transportation, and storage, achieving a scale-up from 100,000 tons to 1 million tons [1] - The company has built the first supercritical CO2 transportation pipeline in China, contributing to an increase in oil production by over 3 million tons [1] Group 2: Overseas Business Growth - In the first three quarters, the company signed new overseas contracts worth 26.3 billion yuan, a year-on-year increase of 62%, primarily from Saudi Aramco and Kuwait KOC [2] - The company is transitioning towards high-end and diversified services, with a focus on integrated drilling and technical services [2] - The company has become the only contractor in Kuwait with integrated drilling service capabilities, enhancing its competitive edge [2] Group 3: Domestic Operations - Despite potential stabilization in capital expenditures from major oil companies, the company aims to enhance technology support and optimize cooperation models in domestic projects [3] - The company is focusing on key technologies such as deep acoustic detection and automated drilling rigs to improve operational efficiency [3] - The company plans to use its reserve fund to cover losses, becoming the first central enterprise listed company to disclose such a plan, which will be reviewed in December [3] Group 4: Marine Oilfield Engineering - The company has a complete marine oilfield engineering industry chain, with new contracts signed in the first three quarters amounting to 4.78 billion yuan, a 46% increase year-on-year [4] - Revenue from marine oilfield services reached 2.94 billion yuan, reflecting a 10% growth [4] - The company is expanding its service offerings to include integrated services for exploration, drilling, and operation maintenance in offshore wind power projects [5]

Core Insights - The article highlights the top and bottom AH premium rates for various stocks, indicating significant discrepancies between H-shares and A-shares [1] Group 1: Top AH Premium Rates - Northeast Electric (00042) leads with a premium rate of 918.87%, followed by Sinopec Oilfield Service (01033) at 304.05% and Hongye Futures (03678) at 298.14% [1] - The top three stocks with the highest deviation values are Northeast Electric (72.50%), Beijing Jingcheng Machinery Electric (00187) (65.68%), and Sinopec Oilfield Service (51.01%) [1] Group 2: Bottom AH Premium Rates - The stocks with the lowest AH premium rates include CATL (03750) at 0.74%, China Merchants Bank (03968) at 0.92%, and Midea Group (00300) at 6.26% [1] - The bottom three stocks with the lowest deviation values are China Eastern Airlines (00670) (-6.33%), Jiangsu Ninghu Expressway (00177) (-6.04%), and Anhui Wanan Expressway (00995) (-5.20%) [1] Group 3: Additional Insights on Premium and Deviation - The article provides a detailed table of the top ten and bottom ten AH stocks based on premium rates and deviation values, showcasing the significant differences in market valuation between H-shares and A-shares [1][2] - The premium rates and deviation values are calculated based on the current rates compared to the average rates over the past 30 days, indicating potential investment opportunities or risks [2]

Core Insights - Southbound funds increased their holdings in Sinopec Oilfield Service Corporation (01033.HK) by 19.078 million shares on November 20, 2025, representing a 2.35% increase in total holdings [1][2] - Over the past five trading days, there were three days of net reductions in holdings, totaling a decrease of 11.06 million shares [1][2] - In the last 20 trading days, there were 11 days of net increases, with a total net increase of 8.042 million shares [1][2] - As of now, southbound funds hold 831 million shares of Sinopec Oilfield Service, accounting for 15.34% of the company's total issued ordinary shares [1][2] Company Overview - Sinopec Oilfield Service Corporation is engaged in providing comprehensive oil and gas engineering and technical services in China [2] - The company operates through five divisions: - Geophysical Engineering Division, which offers land and marine geophysical exploration and development technical services - Drilling Engineering Division, which provides land and marine drilling design, construction, technical services, and drilling equipment - Logging Engineering Division, which conducts engineering contracting and technical services for collecting, monitoring, transmitting, processing, interpreting, and evaluating wellbore oil, gas, geological, and engineering information - Downhole Operations Engineering Division, which offers petroleum engineering technical services and construction - Engineering Construction Division, which provides feasibility studies, design, procurement, and construction for land and marine oilfield projects [2]

Core Insights - The article highlights the top and bottom AH share premium rates as of November 20, with Northeast Electric (00042) leading at 847.37% and Ningde Times (03750) at -3.01% [1][2] Premium Rate Rankings - The top three AH share premium rates are: - Northeast Electric (00042): 847.37% - Zhejiang Shibao (01057): 283.92% - Hongye Futures (03678): 283.88% [2] - The bottom three AH share premium rates are: - Ningde Times (03750): -3.01% - China Merchants Bank (03968): -0.06% - WuXi AppTec (02359): 4.92% [2] Deviation Value Rankings - The highest deviation values are: - Beijing Jingdian (00187): 45.70% - Zhejiang Shibao (01057): 37.82% - Sinopec Oilfield Service (01033): 32.35% [1][2] - The lowest deviation values are: - China Eastern Airlines (00670): -13.61% - Ganfeng Lithium (01772): -12.40% - China Life (02628): -11.44% [1][3]

Core Insights - The article highlights the top and bottom AH share premium rates as of November 19, with Northeast Electric (00042) leading at 847.37% and CATL (03750) at -8.50% [1][2]. Premium Rate Rankings - The top three AH share premium rates are: - Northeast Electric (00042): 847.37% - Hongye Futures (03678): 281.60% - Sinopec Oilfield Service (01033): 278.48% [2] - The bottom three AH share premium rates are: - CATL (03750): -8.50% - China Merchants Bank (03968): 0.33% - Heng Rui Medicine (01276): 3.61% [2] Deviation Value Rankings - The highest deviation values are: - Hongye Futures (03678): 31.12% - Sinopec Oilfield Service (01033): 29.24% - Zhejiang Shibao (01057): 28.97% [1][2] - The lowest deviation values are: - Ganfeng Lithium (01772): -15.34% - COSCO Shipping Energy (01138): -11.82% - China Eastern Airlines (00670): -11.38% [1][3]

Core Insights - The article highlights the top and bottom AH share premium rates as of November 18, with Northeast Electric (00042) leading at 847.37% and Ningde Times (03750) at -7.82% [1][2][3] Top AH Share Premium Rates - Northeast Electric (00042) has a premium rate of 847.37% with H-share priced at 0.285 HKD and A-share at 2.25 CNY [2] - Sinopec Oilfield Service (01033) follows with a premium rate of 296.15%, H-share at 0.780 HKD and A-share at 2.58 CNY [2] - Hongye Futures (03678) ranks third with a premium rate of 275.07%, H-share at 3.490 HKD and A-share at 10.93 CNY [2] Bottom AH Share Premium Rates - Ningde Times (03750) shows a negative premium rate of -7.82%, with H-share at 504.000 HKD and A-share at 387.89 CNY [3] - China Merchants Bank (03968) has a premium rate of -0.08%, H-share at 51.400 HKD and A-share at 42.88 CNY [3] - Heng Rui Pharmaceutical (01276) has a premium rate of 4.52%, with H-share at 70.800 HKD and A-share at 61.78 CNY [3] Top AH Share Deviation Values - Sinopec Oilfield Service (01033) leads in deviation value at 49.38% [1][4] - Zhejiang Shibao (01057) follows with a deviation value of 31.62% [1][4] - Beijing Jingcheng Machinery Electric (00187) has a deviation value of 28.48% [1][4] Bottom AH Share Deviation Values - Ganfeng Lithium (01772) has the lowest deviation value at -13.86% [1][5] - China Life (02628) follows with -12.23% [1][5] - CNOOC Services (02883) has a deviation value of -11.47% [1][5]

Core Insights - The oil service engineering sector experienced a decline of 1.87% on November 18, with PetroChina Oilfield Services leading the drop [1] - The Shanghai Composite Index closed at 3939.81, down 0.81%, while the Shenzhen Component Index closed at 13080.49, down 0.92% [1] Stock Performance - Zhongman Petroleum (603619) closed at 24.93, up 3.40% with a trading volume of 204,600 shares and a transaction value of 508 million yuan [1] - Potential Energy (300191) closed at 20.71, up 0.05% with a trading volume of 85,200 shares and a transaction value of 176 million yuan [1] - Other notable declines include PetroChina Oilfield Services (600871) down 4.26% and Tongyuan Petroleum (300164) down 3.73% [2] Capital Flow - The oil service engineering sector saw a net outflow of 136 million yuan from institutional investors, while retail investors had a net inflow of 184 million yuan [2] - Major stocks like Zhongman Petroleum and Renji Co. experienced mixed capital flows, with Zhongman Petroleum seeing a net inflow of 33.83 million yuan from institutional investors [3]

Group 1 - The core point of the article highlights the decline in the stock price of Sinopec Oilfield Service Corporation, which fell by 5.04% to 2.45 CNY per share, with a trading volume of 421 million CNY and a turnover rate of 1.24%, resulting in a total market capitalization of 46.445 billion CNY [1] - Sinopec Oilfield Service Corporation, established on November 21, 1994, and listed on April 11, 1995, is primarily engaged in engineering and technical services for oil and gas exploration and development [1] - The company's main business revenue composition 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 the top ten circulating shareholders, Southern Fund's Southern CSI 500 ETF (510500) reduced its holdings by 1.4285 million shares in the third quarter, now holding 59.2787 million shares, which accounts for 0.31% of the circulating shares [2] - The estimated floating loss for the Southern CSI 500 ETF today is approximately 7.7062 million CNY [2] - The Southern CSI 500 ETF, established on February 6, 2013, has a current scale of 140.098 billion CNY, with a year-to-date return of 28.29% and a one-year return of 23.95%, ranking 1783 out of 4212 and 1902 out of 3956 respectively [2]

Core Insights - The article highlights the top and bottom AH share premium rates, indicating significant discrepancies in market valuations between H-shares and A-shares for various companies [1][2][3]. Group 1: Top AH Share Premium Rates - Northeast Electric (00042) leads with a premium rate of 815.25%, followed by Hongye Futures (03678) at 277.62% and Sinopec Oilfield Service (01033) at 276.83% [1][2]. - The premium rates for the top three companies indicate a strong market preference for their H-shares compared to A-shares [2]. Group 2: Bottom AH Share Premium Rates - Contemporary Amperex Technology (03750) has the lowest premium rate at -7.20%, with China Merchants Bank (03968) at -0.80% and Heng Rui Medicine (01276) at 4.11% [1][3]. - The negative premium for Contemporary Amperex Technology suggests a potential undervaluation of its H-shares relative to A-shares [3]. Group 3: Premium Deviation Values - Zhongwei New Materials (02579) has the highest deviation value at 77.12%, indicating a significant difference from its historical average premium rate [1][4]. - The lowest deviation values are seen in Northeast Electric (00042) at -22.71%, suggesting a consistent underperformance compared to its historical premium [1][5].