Page 304 - Annual Report 2020

Other Assets

Mineral Resources
As at 30 June 2020 As at 30 June 2019
Measured Resources Indicated Resources Inferred Resources Total Resources Total Resources
BHP
Commodity Ore % K 2 O % Insol. % MgO % K 2 O % Insol. % MgO % K 2 O % Insol. % MgO % K 2 O % Insol. % MgO Interest % K 2 O % Insol. % MgO
Deposit Type Mt Mt Mt Mt % Mt
Potash Project
Jansen (1) (2) (3) (4) (5) LPL 5,230 25.6 7.7 0.08 – – – – 1,280 25.6 7.7 0.08 6,510 25.6 7.7 0.08 100 6,510 25.6 7.7 0.08
(1) The Mineral Resources are stated for the Lower Patience Lake (LPL) potash unit. A seam thickness of 3.96m from the top of 406 clay seam was applied.
(2) 25.6%K 2 O grade is equivalent to 40.5%KCl content using the mineralogical conversion factor of 1.583.
(3) %MgO is used as a measure of carnallite (KCl.MgCl 2 .6H 2 O) content where per cent carnallite equivalent = %MgO x 6.8918.
(4) Measured Resources grade has been assigned to Inferred Resources.
(5) Tonnages are reported on an in situ moisture content basis, estimated to be 0.3%.
Mineral Resources
As at 30 June 2020 As at 30 June 2019
Measured Indicated Inferred
Resources Resources Resources Total Resources BHP Total Resources
Commodity Interest
Deposit (1) Ore Type Mt %Ni Mt %Ni Mt %Ni Mt %Ni % Mt %Ni
Nickel West Operations
Leinster (2) OC 3.0 1.1 8.0 1.0 0.70 1.2 12 1.1 100 9.3 1.4
Disseminated Sulphide 2.4 0.69 77 0.53 88 0.52 167 0.53 168 0.52
UG 16 2.0 12 2.0 4.3 1.9 32 2.0 31 2.1
Oxide − − − − 5.3 1.8 5.3 1.8 5.3 1.8
SP − − 0.89 0.75 − − 0.89 0.75 1.4 1.0
SP Oxidised − − − − 1.9 1.7 1.9 1.7 1.9 1.7
Mt Keith (3) Disseminated Sulphide 133 0.54 67 0.52 24 0.52 224 0.53 100 225 0.53
SP 7.1 0.58 − − − − 7.1 0.58 8.4 0.48
Cliffs Disseminated Sulphide − − 6.6 0.87 1.7 1.0 8.3 0.90 100 8.6 0.92
Massive Sulphide 0.94 3.6 1.1 3.7 0.53 3.7 2.6 3.7 2.5 3.8
Yakabindie Disseminated Sulphide 148 0.59 108 0.63 169 0.62 425 0.61 100 439 0.61
Venus (4) Disseminated Sulphide 1.2 1.7 5.8 1.7 1.1 1.4 8.1 1.7 100 6.5 1.8
Massive Sulphide 0.058 6.2 0.75 6.4 0.28 6.1 1.1 6.3 1.5 6.2
Nickel West Project
Jericho Disseminated Sulphide − − − − 31 0.59 31 0.59 50 31 0.59

Ore Reserves
As at 30 June 2020 As at 30 June 2019
Proved Probable
Reserves Reserves Total Reserves Reserve BHP Total Reserves Reserve
Commodity Life Interest Life
Deposit (1) (5) (6) (7) (8) Ore Type Mt %Ni Mt %Ni Mt %Ni (years) % Mt %Ni (years)
Nickel West Operations
Leinster (9) (10) OC 3.5 0.74 1.8 0.66 5.3 0.72 8.0 100 4.1 0.84 11
SP − − 0.89 0.75 0.89 0.75 − −
UG − − 5.1 1.6 5.1 1.6 5.3 1.6
Mt Keith (11) OC 65 0.57 19 0.55 84 0.57 15 100 88 0.57 12
SP 6.2 0.58 0.90 0.45 7.1 0.58 8.4 0.48
Cliffs (12) UG 0.10 1.9 1.0 2.0 1.1 2.0 4.0 100 0.45 2.0 0.9
Yakabindie (13) OC 119 0.56 44 0.61 163 0.57 15 100 150 0.57 15
Venus (14) UG − − 9.3 1.5 9.3 1.5 13 100 2.1 2.7 7.0

302 BHP Annual Report 2020