1Research on prediction of thermal coal price based on exponential smoothing methodFu Jia6-122Current situation and future prospects of "replacement of coal consumption reduction in key areas"Zang Yuanfeng, Wang Qiang13-203Research on coal-based low carbon technology based on multi-dimensional perspectiveHan Yun, Wang Yun21-254Exploring the clean and efficient production and utilization of coal——Based on the "Blue Sky Project" of Yankuang GroupHan Kaipei, Li Ya, Xu Meng26-305Energy security evaluation of China's economically developed provinces——Taking Guangdong and Fujian provinces as an exampleLi Bingchuan31-356Operation risk identification and control of coal enterprises based on AHPYao Guangyao, He Xiao36-407Mid-term evaluation and countermeasures for the 13th Five-Year plan of the coal industrySong Xiaobo, Song Xiaofeng41-468Research on the development model and implementation way of Yankuang Group logistics industryJia Mingxian, Wang Xingwen, Wang Cizheng47-529Research on the policy of coal clean utilization in ChinaYang Junjun, Qin Rongjun53-5710Analysis on the factors of coal loss in transit port and countermeasuresLi Haozhi58-6111Research on performance evaluation of coal enterprises based on EVAGao Qiaoli62-6612Research on the joint management of production cost and sales system in coal enterprisesZhang Keli, Zhang Shaolong67-7213Research on the implementation of project department management in Yanmei Mining CompanyLYU Li, Hou Hua, Mu Hongyang, Xu Zhongqin73-7714Analysis of the impact of supply side reform on financial pressure of listed coal enterprisesWu Fangfang78-8315The conception of improving the environmental cost accounting of coal enterprises under the background of new eraLi Xiulan84-87 