Changsha Institute of Mining and Metallurgy (hereafter referred to as CRIMM) has been the leading comprehensive institution in China since establishment in 1955. CRIMM is also the technical backstopping institute of National Institute of Multipurpose Utilization of Mineral Resources, National Inspection Center of Drill Tools, and Quality Inspection Center of Civil Explosive Device and Metallurgical auxiliary Material.CRIMM currently has over 3,000 employees, of who 2 are academician from the Chinese Academy of Engineering; 1 is an academician of foreign nationality with Slovak Academy of Engineering; 31 enjoy the government special subsidy that State Department distributes; 5 are Doctoral Student Tutors; 54 are Master's Tutors; 64 are professorate Senior Engineers; 268 are Senior Engineers; 14 have doctor