A known issue?

Something for our dubious Board to consider in front of next AGM:

Geotechnical

Peter O’Bryan and Associates (“PBA”) carried out a feasibility level geotechnical investigation and assessment of the Smarts deposit in May 2014. PBA recommended slope parameters to be applied to the Smarts pit designs. Since mining commenced Troy has flattened the slope angle of the overburden sand due to high saturation levels and slumping in the sand. PBA identified a number of risk factors which need to be monitored as the pits are developed. Generally the Smarts pits are performing reasonably well. There has been a localised bench failure in the eastern wall of Smarts 2 pit which may have been due to an unfavourable structure in the oxidized material. Troy indicated that a small cutback may be required to stabilise the wall prior to Smarts 2 being deepened. PBA is providing ongoing external review and will visit site shortly. There has been no specific geotechnical assessment of the Hicks open pits. The slope parameters in Smarts were applied to the comparable various rock types in the Hicks 3 pit. The pit wall conditions at Hicks 3 are reasonable with some minor bench scale failures. BDA considers geotechnical assessment is required before Hicks Cutback is developed.

http://www.troyres.com.au/images/Reports/BDA_Report_ExecSummary.pdf