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Investor Presentaiton

Developments at Gwalia in FY15 > New absorption chiller plant utilises waste heat from power plant > Deep HV Cable drop to 1,400 mbs > New mining techniques improve production and efficiency Ore Pass system: increases efficiency of trucking and bogging Stopes on level available to be exploited via ore pass 6 1 St Barbara LIMITED Upgraded Cooling System 5 3 8 1420 MM Underground waste storage: allows greater proportion of trucking to surface to be for ore. Paste filled stope Continuous bogging of stopes to ore pass, with daily rate of ore pass evacuation exceeding potential rate of filling Loading of trucks at base of ore pass decoupled from stope bogging activity on the level above 14 Asia Investor Relations Roadshow / March 2016 Paste filled section 1500 1460 Paste plug Waste fill
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