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Update on Merger with Polymetals - Notice of Meeting

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BDO CORPORATE FINANCE (WA) PTY LTD<br />

<strong>Polymetals</strong> Mining Limited and Southern Cross Goldfields Limited<br />

Technical Specialist's Report<br />

Case 1, ore producti<strong>on</strong>, is primarily based <strong>on</strong> the feasibility study scenario using Ore Reserves, and that part<br />

<strong>of</strong> Mineral Resources included in the mine plan provided. AMC added additi<strong>on</strong>al ore to the producti<strong>on</strong> case<br />

in years 5 and 6 <strong>of</strong> the schedule based <strong>on</strong> the likelihood <strong>of</strong> c<strong>on</strong>versi<strong>on</strong> <strong>of</strong> near mine Mineral Resources to<br />

Ore Reserves and explorati<strong>on</strong> success also c<strong>on</strong>tributing to additi<strong>on</strong>al ore Reserves.<br />

Case 2, ore producti<strong>on</strong>, includes that scheduled in Case 1, <strong>with</strong> the additi<strong>on</strong> <strong>of</strong> two years producti<strong>on</strong><br />

simulated to reflect the likely c<strong>on</strong>versi<strong>on</strong> <strong>of</strong> additi<strong>on</strong>al Mineral Resources to Ore Reserves and likely success<br />

<strong>with</strong> explorati<strong>on</strong> in the Marda regi<strong>on</strong>. AMC has included additi<strong>on</strong>al producti<strong>on</strong> to extend the mine life for two<br />

years to reflect further explorati<strong>on</strong> success.<br />

The two producti<strong>on</strong> cases are designed to provide a lower and upper range <strong>of</strong> likely outcomes for the Marda<br />

Project.<br />

AMC believes that the two producti<strong>on</strong> cases described appropriately provide a value <strong>on</strong> the Mineral<br />

Resources and explorati<strong>on</strong> potential for the greater Marda Gold project.<br />

Marda Case 1 (Feasibility Case)<br />

Key aspects <strong>of</strong> AMC's case 1 model are:<br />

• The mine schedule and processing schedule are essentially based <strong>on</strong> the 5 year LOM plan provided in<br />

the feasibility study <strong>with</strong> a limited amount <strong>of</strong> ore added to end <strong>of</strong> the mine life.<br />

• Project development commences in May 2014.<br />

• Operating and capital costs are based <strong>on</strong> those provided in the feasibility study.<br />

• Average unit mining costs <strong>of</strong> $3.24/t <strong>of</strong> material moved are used.<br />

• Average processing costs <strong>of</strong> $30.21/t ore processed are assumed.<br />

• Total ore processed is 2.7 Mt at a head grade <strong>of</strong> 2.3 g/t.<br />

• AMC adjusted the head grade to reflect a lower grade <strong>of</strong> diluting material than that assumed in the<br />

feasibility study based <strong>on</strong> the AMC review <strong>of</strong> the Resource model, this had the effect <strong>of</strong> lowering the<br />

head grade from 2.36 g/t to 2.31 g/t over the life <strong>of</strong> the project.<br />

• AMC adjusted the metallurgical recovery for the project in the first three years from 95% to 94%<br />

compared to the feasibility study based <strong>on</strong> our review <strong>of</strong> the test work..<br />

• Total gold producti<strong>on</strong> <strong>of</strong> 190 koz <strong>of</strong> gold.<br />

• Initial capital expenditure <strong>of</strong> $38.2M based <strong>on</strong> the feasibility study. This capital is principally associated<br />

<strong>with</strong> site establishment and relocati<strong>on</strong> and refurbishment <strong>of</strong> the processing facilities and camp from<br />

Sandst<strong>on</strong>e to Marda.<br />

• Closure costs increased by $1.2M compared to the feasibility study to <strong>of</strong>fset the assumed residual<br />

value <strong>of</strong> the mining equipment.<br />

Marda Case 2 (Feasibility Case Plus Additi<strong>on</strong>al Inventory)<br />

Key aspects <strong>of</strong> AMC's case 2 model are:<br />

• Assumpti<strong>on</strong>s as in case 1 for the first 4 years <strong>of</strong> producti<strong>on</strong>.<br />

• An additi<strong>on</strong>al 1 milli<strong>on</strong> t<strong>on</strong>nes <strong>of</strong> ore at a grade 2.31 g/t is added to the end <strong>of</strong> the mine life. AMC has<br />

assumed that operating costs are the same as those incurred in year 2014 for the extensi<strong>on</strong> period.<br />

The head grade is based <strong>on</strong> the project average. The 1 Mt represents 50% <strong>of</strong> the Marda Inferred<br />

Resource c<strong>on</strong>verting to Ore Reserves. The average project head grade has been applied.<br />

• Processing recoveries are assumed to be 92% in the extensi<strong>on</strong> years to reflect a lower c<strong>on</strong>fidence in<br />

the recovery characteristics for this material.<br />

• Total gold producti<strong>on</strong> <strong>of</strong> 246 koz <strong>of</strong> gold.<br />

• A higher capital expenditure over the extensi<strong>on</strong> period is assumed compared to case 1 due to costs<br />

that would be associated <strong>with</strong> starting or extending open pits.<br />

40

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