中材节能：关于所属子公司签署经营合同的公告

Group 1 - The core point of the article is that Zhongcai Energy has signed a comprehensive utilization project contract for the Dahu Shao Mine in Xianning, with a total contract value of RMB 347,166,400.00 (including tax) [2][3] Group 2 - The contract was signed between Wuhan Building Materials Industry Design and Research Institute Co., Ltd., a subsidiary of Zhongcai Energy, and Xianning High-tech Mining Co., Ltd. [2] - The project involves the comprehensive utilization of white marble resources in the Xianning region [2]