Ann: ARL SMM and MC to form a JV to develop KNP Goongarrie Hub, page-189

Apologies All, really stupid question which I should have asked prior to making a significant investment into ARL
ARL keeps advising
"The Kalgoorlie project boasts a significant resource of 854 million tonnes (mt) at 0.71% nickel and 0.045% cobalt for 6.1mt of contained nickel and 386,000t of contained cobalt."
However it advises it will be producing 30k tonnes of nickel and 2k of Cobalt per year for 40+ years.
30000 x 40 = 1,200,000 tonnes
2000 x 40 = 80,000 tonnes

where is the other 4.9m tonnes Nickel and 306,000 tonnes Cobalt? or at these rates its a 200 yr + mine

thanks