氯碱化工：第十一届董事会第二十一次会议决议公告

Group 1 - The core viewpoint of the article is that Chlor-Alkali Chemical has approved several significant proposals during its board meeting, including investments in advanced materials and a comprehensive utilization project for waste salt [2] - The company has approved an investment in the Guangxi Huayi Chlor-Alkali Chemical Co., Ltd. for the advanced materials supporting waste salt comprehensive utilization project [2] - The board also approved the preparation of the "14th Five-Year" industrial planning [2] - Additionally, the company has agreed to sign a steam supply contract [2]