Shaanxi coal is one level higher than Shaanxi drum.

Shaanxi Blower (Group) Co., Ltd. (hereinafter referred to as "Shaanxi Drum") was founded on 1968, completed and put into operation on 1975, and was transformed from Shaanxi Blower Factory into Shaanxi Blower (Group) Co., Ltd. on 1996. Shaanxi Coal Chemical Group Co., Ltd. (hereinafter referred to as "Shaanxi Coal") is a large-scale energy and chemical enterprise established by Shaanxi provincial government to promote the sustainable development of coal industry and build a strong economic province in the west. Established in 2004, it is a department-level unit. Therefore, Shaanxi coal is a higher level than Shaanxi drum.