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Saturday, December 22, 2012 11:35:51 AM
Here is an example, in the DD done on valuation of SRGE the guy doing always uses 100% recovery - in the Mexican operation of GC they have a combined recovery of 67%.
70% of silver production is a by-product of some other type of mining. There isn't nuggets or veins of silver and it is separated using electrolysis or a chemical process from gold, copper or zinc. The recovery of Silver is substantially lower than gold and is in the 20% range when mined with Gold.
Another item that is never taken into account with the pro-SRGE DD and that is the all-in cost is between $800 and $900.
With GC the cash costs are $847 - they were paid $1547/oz as this is cash costs and not all in costs they received about $700/oz. So the blue-sky picture painted by the Pro-SRGE DD/Valuation is completely wrong.
Here is a breakdown of the Goldcorp gold mine (largest in Mexico)
Gold produced (oz) 254,100
Gold sold (oz) 233,400
Ore milled/processed (t) 42,125,200
Gold grade (g/t) 0.37
Gold recovery (%) 61%
By-product cash costs(US$/oz) ($847)
Realized gold price (US$/oz) $1,576
Throughput (tpd) 86,110
Mining costs per tonne mined (US$/t moved) $1.56
Processing costs per tonne milled (US$/t milled) $8.32
Earnings from operations $376,000,000
If you look at Stervc's Valuation you can see how it is for fictional reading only and not based on facts:
Proven (Measured) and Probable (Indicated) Ore Reserves and Inferred Ore Reserves for the SRGE Cinco Minas property from the resource estimate done by Behre Dolbear de Mexico:
Measured/Indicated Gold = 89,100 oz
Measured/Indicated Silver = 12,500,000 oz
Gold = approximately $1,700.00+ per ounce as of 12/17/2012
http://www.kitco.com/charts/livegold.html
Measured/Indicated Gold = $1,700.00 oz x 89,100 oz of gold
Measured/Indicated Gold = $151,470,000
Silver = approximately $32.00+ per ounce as of 12/17/2012
http://www.kitco.com/charts/livesilver.html
Measured/Indicated Silver = $32.00 oz x 12,500,000 oz of silver
Measured/Indicated Silver = $400,000,000
Total Measured/Indicated Gold & Silver = $551,470,000
The key differences between a scoping study and a feasibility study have to do with:
1. scoping study is limited to early stage projects
2. a scoping study, with strict disclosure requirements, may use inferred resources. A feasibility study would be restricted to Proven and Probable reserves plus Measured and Indicated resources.
Mexico might be a force in the mining industry but SRGE will not be.
IG
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