Group 1 - The article highlights the top three companies with the highest AH premium rates: Northeast Electric (00042) at 831.03%, Beijing Jingcheng Machinery Electric (00187) at 291.45%, and Sinopec Oilfield Service (01033) at 288.17% [1] - The bottom three companies with the lowest AH premium rates are Contemporary Amperex Technology (03750) at -12.59%, WuXi AppTec (02359) at -4.58%, and China Merchants Bank (03968) at -4.48% [1] - The article provides a detailed ranking of the top ten and bottom ten AH stocks based on their premium rates and deviation values, indicating significant disparities in market valuations between H-shares and A-shares [1][2] Group 2 - The deviation values for the top three companies are Beijing Jingcheng Machinery Electric (00187) at 27.77%, Jinju Group (02009) at 19.35%, and Kai Sheng New Energy (01108) at 16.80% [1] - The bottom three companies with the most negative deviation values are Junda Co., Ltd. (02865) at -60.53%, Chenming Paper (01812) at -32.02%, and CNOOC Services (02883) at -31.42% [1][2] - The article emphasizes that the deviation value represents the difference between the current premium rate and the average premium rate over the past 30 days, providing insights into market trends [2]