In order to improve the operational efficiency of China's coal listed companies and promote high-quality and sustainable development of the coal industry,the DEA-BCC-I model was used to analyze and evaluate the operational efficiency of 32 coal listed companies in 2022.Research shows that the average comprehensive technical efficiency of 32 coal listed companies is 0.521,which is relatively low overall.Only five companies,such as Lu'an Huanneng,Shaanxi Coking,Haohua Energy,Shaanxi Coal Industry and Baofeng Energy,are effective in DEA.The low level of technology is the main factor for ineffective business efficiency,while the scale of investment is the secondary factor.Redundancy analysis indicates that there is a situation of resource redundancy in the remaining 27 coal listed companies with DEA ineffective.It is recommended to take targeted measures such as strengthening technological innovation capabilities,optimizing enterprise business scale,improving the matching degree of investment factors,and deepening enterprise cooperation to improve enterprise operational efficiency.
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