On November 29th, the leaders of Tengzhou Tiangong Machinery Co., Ltd. visited China Coal Group, and both sides conducted in-depth discussion on the intention of cooperation, and finally signed a joint manufacturing agreement, marking the strategic cooperation between the two enterprises in the field of manufacturing formally reached. The leaders of China Coal Group, such as the chairman of the board of directors, Mr. Qu Qing, the general manager, Mr. Han Yong, the general manager of information technology of China Coal Group, and Mr. Li Zhenbo, the general manager of Zhongyun Group, were warmly received by the company.