正海磁材：减持计划期限届满，公司董事、副总裁、财务总监兼董事会秘书高波和董事、副总裁史丙强未减持公司股份

Group 1 - The company Zhenghai Magnetic Materials announced that as of the date of the announcement, its directors and executives did not reduce their shareholdings during the planned reduction period, and the reduction plan has now expired [1] - The industry is experiencing challenges with rising raw material costs, such as silver, leading to decision-making difficulties for companies [1] - Some solar energy companies are rushing to export products ahead of the April 1 deadline, indicating a competitive market environment [1]