海南板块低开高走，海南矿业、海马汽车双双涨停

Group 1 - Hainan sector opened lower but rebounded, with Hainan Mining and Haima Automobile both hitting the daily limit up [1] - Hainan Airlines Group rose over 8%, indicating strong performance in the sector [1] - Other stocks such as Caesar Travel, Ronniu Mountain, Shennong Seed Industry, Hainan Pharmaceutical, Hainan Ruize, Hainan Rubber, and Kangzhi Pharmaceutical also experienced gains [1]