28 October 2022Lady Colleen grade increases by 200%Highlights:•...

28 October 2022
Lady Colleen grade increases by 200%

Highlights:
• Lady Colleen Mineral Resource updated to include estimates for potential on-site heap
leach and toll sulphide treatment.

o Low calcium leach feed at a 0.3% Cu cut-off
▪ Measured Mineral Resource 0.1 Mt @ 0.8% Cu
▪ Indicated Mineral Resource 0.1 Mt @ 1.0% Cu
▪ Total Mineral Resource 0.2 Mt @ 0.9% Cu

o Float sulphide feed at a 0.7% Cu cut-off
▪ Measured Mineral Resource 0.5 Mt @ 1.8% Cu
▪ Indicated Mineral Resource 1.8 Mt @ 2.0% Cu
▪ Inferred Mineral Resource 0.3 Mt @ 1.6% Cu
▪ Total Mineral Resource 2.6 Mt @ 2.0% Cu

o Combined Total
▪ Measured Mineral Resource 0.6 Mt @ 1.6% Cu
▪ Indicated Mineral Resource 1.9 Mt @ 2.0% Cu
▪ Inferred Mineral Resource 0.3 Mt @ 1.6% Cu
▪ Total Mineral Resource 2.8 Mt @ 1.9% Cu

• The update includes:
o 18 new Austral drill holes completed 2022 and
o Improved geological understanding of lithology and faulting
• The Mineral Resource is restricted to an optimised pit shell to only report material which
has potential for economic extraction. Though a reduction from the previous CST (2013)
unrestricted report, the update provides a slight improvement in tonnes and grades for
like areas along with an improvement in classification category.
• The Mineral Resource provides a basis for metallurgical sample select and the planned
scoping study.