清新环境：董事张爱民因工作变动辞职

Core Points - The company announced that board member Zhang Aimin submitted a written resignation due to work changes [1] - Zhang Aimin will no longer hold any position within the company, and his resignation will not reduce the number of board members below the legal minimum [1] - The company will expedite the process of selecting a new board member to fill the vacancy left by Zhang Aimin [1] - Zhang Aimin did not hold any shares in the company and there are no outstanding commitments from him [1] - The company expressed gratitude for Zhang Aimin's contributions [1]