OZ Minerals September 2009 Quarterly Report

15 Oct 2009

Summary

Production from Prominent Hill up on previous quarter and on schedule to meet original guidance for the year.
2009 guidance range narrowed to 85,000 tonnes to 90,000 tonnes for copper production, US70c/lb to US75c/lb for cash costs; gold production unchanged.
Misfire events and geotechnical issues restricted ore mining in parts of the pit during the period.
Unplanned plant shut-downs impacted mill production but issues were resolved by the end of the period.
Underground feasibility studies continue and are now due for completion in the first quarter of 2010.
Regional exploration at Prominent Hill returns iron-oxide copper-gold-style alteration in some holes.
Exploration in Cambodia is proceeding towards an initial gold Resource.

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