A股化学制药板块触底反弹，向日葵涨20%涨停

Group 1 - The A-share chemical pharmaceutical sector experienced a rebound, with notable stock performances [1] - Sunflower stock surged by 20% and hit the daily limit, indicating strong market interest [1] - Other companies such as Duoyi Pharmaceutical and Huahai Pharmaceutical saw increases of over 13% and 9% respectively, reflecting a positive trend in the sector [1]