华润材料：非独立董事张应中辞职

Core Points - The company announced the resignation of non-independent director Zhang Yingzhong and vice president Wang Yuhang due to work arrangements [1] - Both Zhang Yingzhong and Wang Yuhang will no longer hold any positions within the company or its subsidiaries after their resignations [1] - As of the announcement date, neither Zhang Yingzhong nor Wang Yuhang held any shares in the company [1]