Investor Presentaiton
Organic Growth - Simberi sulphide
Sulphide
Oxide
Oxide
Sulphide
St Barbara
LIMITED
Oxide
Simberi - Sorowar pit - 13 Aug 2015 (oxide ore being
mined, exposing the sulphide wall behind)
Simberi schematic cross section - oxide mining is a pre-strip for sulphide mining
Sulphide mining at Simberi potentially extends life
based on existing reserve, open at depth¹
Simberi oxide mine life ~3 years¹
Oxide mining pre-strips for sulphide mining
Current Mining lovel
Oxide Pit Design
Sulphide Pit Design
St Barbara
Simberi Operations
Sulphide
Transition
Oxide
> Reserves of 19.9 Mt @ 2.0 g/t Au for 1.3 Moz²
contained gold with further drilling planned.
Schematic showing a theoretical oxide/sulphide pit design
> Processing options being considered, favouring a low capex flotation circuit, with
export of a concentrate
1.
Refer ASX announcement 20 October 2015 "Quarterly Report Q1 September 2015"
2.
22 / Asia Investor Relations Roadshow / March 2016
Refer ASX announcement released 25 August 2015 titled 'Ore Reserves and Mineral
Resources Statements 30 June 2015'.View entire presentation