晶华新材公告，董事及高管白秋美拟减持不超过1,607,560股，占总股本0.5549%；郑章勤拟减持不超过99,110股，占总股本0.0342%；尹力拟减持不超过56,500股，占总股本0.0195%；潘晓婵拟减持不超过62,800股，占总股本0.0217%。