Benefit s of British Columbia s Mining Supply Chain 11 iT o t em s da t a se t included the cumula tiv e self r eport ed pr ocur ement spend fr om British Columbia s 17 mines and tw o smelt er s in the 2018 c alendar y e ar The final da t a se t w as check ed and v erified b y the oper a tions All number s ar e appr o xima t e Mor e inf orma tion on the me thodolog y c an be f ound a t miningbc c a me t hodol og y P articip a ting BC M ines S mel t ers B rucejack C ent err a C onuma C oal 3 oper ations C opper M ountain Gibr altar H ighland V alle y C opper M yr a F alls N e w A ft on R ed C hris Silv ertip T eck C oal 5 oper ations Rio T int o Alcan T r ail M etal S melt er O per ations