operating update post flooding events

Operating Update – Post Flooding Events

• Interim mining operations, pit water pump outs and transition towards
recommencement of full mining activities are all proceeding in line with the details
of the ASX announcement of 20 February 2014.
Garden Well
• All external flood bunds have been reinstated and bolstered as required.
• Pump out of the Garden Well pit (north stages 1-3) by expert contractor
commenced a week ago and is ramping up to full pumping capacity in the next few
days. Pump out progressing in line with details given in previous announcement.
• Mining in the southern part of the pit (stage 4) has recommenced and is expected
to return to full day and night shift mining today. Grade control and blasting have
recommenced. Minimal ore supply has been generated to date but will increase
over the coming week.
• The mill has been running since the flood at approximately 5 million tonnes per
annum, treating ore from ROM stockpiles.
Rosemont
• All external flood bunds have been reinstated and bolstered as required.
Abandonment bunds will be raised when mining commences to provide suitable
waste rock.
• Pump out of the Rosemont North open pit has been completed with only small
areas of standing water now required to be removed. The level of sediment on the
pit floor is estimated at approximately 100mm, which is in line with the Company’s
pre-pump out expectations.
• Mining options for the silt and the first 2 metre ore flitch in the Rosemont North Pit
are being assessed at present and mining will commence as soon as practicable.
• Mining of waste in the Rosemont Main pit commenced a week ago and is
expected to ramp up to full day and night shift mining in several days. Mining of
ore in the Main Pit is expected to commence in around 2 weeks once sufficient
grade control drilling and assay analysis is completed.
• The mill has been running since the flood at approximately 1.6 million tonnes per
annum, treating ore from ROM stockpiles.