RESOURCES & RESERVES

McDermitt Mineral Resource - Lithium

Cut-off Grade    (ppm Li) Indicated Resource Inferred Resource Indicated & Inferred Resource
Tonnage (Mt) Li Grade (ppm) LCE      (Mt) Tonnage (Mt) Li Grade (ppm) LCE      (Mt) Tonnage (Mt) Li Grade (ppm) LCE      (Mt)
500 283 1,340 2.0 2,020 1,130 12.1 2,300 1,150 14.1
1,000 233 1,430 1.8 1,200 1,300 8.3 1,430 1,320 10.1
1,500 73 1,910 0.7 240 1,750 2.2 313 1,790 3.0
1,750 44 2,110 0.5 85 2,000 0.9 129 2,040 1.4
2,000 23 2,310 0.3 34 2,200 0.4 57 2,240 0.7

* as of 8 April 2021

Prospect Ridge Mineral Resource - Magnesite

Cut-off Grade
(% MgO)
Inferred Resource
Tonnage (Mt) MgO
(%)
SiO2
(%)
Fe2O3
(%)
CaO
(%)
36 37 41.1 5.9 1.7 2.9
38 32 41.7 5.4 1.6 2.8
40 25 42.4 4.8 1.4 2.6
42 15 43.3 4.2 1.3 2.2
44 3 44.5 3.0 1.0 1.9

*as of 10 October 2017