Mineral Resource Table

Stratigraphy Volume
(106 m3)
Total
Porosity
(%)
Brine
Volume
(106 m3)
Specific
Yield
(%)
Drainable
Brine
Volume
(106 m3)
K
Grade
(mg/L)
K
Mass
(Mt)
SO4
Grade
(mg/L)
SO4
Mass
(Mt)
Equivalent
SOP Grade
(K2 SO4)
(kg/m3)
Drainable
Brine SOP
Mass
(Mt)
Total Brine
SOP Mass
(Mt)
Lake THROSSELL INDICATED MINERAL RESOURCE
Surficial Aquifer 1,008 0.40 403 0.17 170 4,985 0.8 22,125 3.8 11.1 1.9 4.5
Total Indicated Resource 1,008 403 170 4,985 0.8 22,125 3.8 11.1 1.9 4.5
LAKE THROSSELL INFERRED MINERAL RESOURCE
Surficial Aquifer 3,074 0.43 1,313 0.10 310 4,605 1.4 21,910 6.8 10.3 3.2 13.5
Confining Layer 8,793 0.45 3,957 0.04 350 4,595 1.6 23,140 8.1 10.3 3.6 40.6
Basal Aquifer 4,446 0.37 1,659 0.12 545 4,640 2.5 23,350 12.7 10.3 5.6 17.2
Total Inferred Resource 16,313 6,929 1,205 4,620 5.6 22,920 9.8 10.3 12.4 71.2
Total Mineral Resource 17,321 7,332 1,375 4,665 6.4 22,822 13.6 21.4 14.3 75.7
LAKE RASON INFERRED MINERAL RESOURCE
Surficial 3,060 0.40 1220 0.10 306 2,290 0.7 21,400 6.5 5.1 1.6 6.2
Crete 5,020 0.38 1910 0.07 351 2,330 0.8 20,900 7.4 5.2 1.8 9.9
Mixed 230 0.30 70 0.10 23 2,390 0.1 21,900 0.5 5.3 0.1 0.4
Basal Sand 1,020 0.30 310 0.21 214 2,390 0.5 22,600 4.8 5.3 1.1 1.6
Saprolite 2,800 0.20 560 0.03 84 2,210 0.2 21,000 1.8 4.9 0.4 2.8
Saprock 9,310 0.10 930 0.02 186 2,050 0.4 21,000 3.9 4.6 0.9 4.3
Total 21,400 4,990 1,160 2,280 2.7 21,400 24.9 5.1 5.9 25.2
TOTAL MINERAL RESOURCE 38,721 12,322 2,535 3,574 22,171 26.5 20.2 100.9
LAKE THROSSELL EXPLORATION TARGET (in addition)
Lower Estimate 5,807 0.05 288 4,081 1.2 9.1 2.6
Upper Estimate 10,925 0.09 945 4,466 4.2 10.0 9.4

Note: Errors may be present due to rounding, approximately 1.2Mt of Drainable SOP Mass is present in Exploration License Application E38/3437. Approximately 2.86Mt of the Drainable SOP Mass is present in Exploration License Applications E38/3544, E38/3483, E38/3458, and E38/3537. Total porosity and total brine SOP mass is provided to compare the total SOP tonnes with the drainable Resources. As can be seen, the total brine volume of 102.53Mt is significantly higher than reported drainable brine volume of 20.19Mt. The drainable brine volume represents the amount of SOP that can be abstracted from the deposit under normal pumping conditions. For economic production, the drainable brine volume is the most important volume because only a proportion of the total brine present can be typically abstracted from the deposit. The potential quantity and grade of the Exploration Target is conceptual in nature. There has been insufficient exploration in these areas to estimate a Mineral Resource. It is uncertain if further exploration will result in the estimation of a Mineral Resource.