Ann: Storm Copper Project Preliminary Economic Study, page-45

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Sandun

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06/03/25

18:33

Post #: 78164114
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Originally posted by plough: ↑

So cc 10 Mt of ore to be mined at a strip ratio of 4.4
that is 55 MT of ore and waste

and yet they show the cyclone pit alone is :
"The Cyclone deposit area extends over an east-west length of 1.45 km (464,295 – 465,745 mE) and north-south length of 625 m (8,173,995 – 8,174,620 mN) and spans a vertical distance of 125 m (157.5 – 282.5 mRL)

lets say the average length is 800 meters and the average width is 475 meters from half way down the pit in depth
and the pit is 125 deep
800M * 475 M * 125 M is 47.5 M cubic meters * guessing SG 2.9 so 137M tonnes

137-10= = 127 tonnes of waste = 12.7:1 strip ratio if all the ore was just in Cyclone and does not include the waste in the other pits - just my quick calculations and may be far out

But Really find it hard to see how the strip ratio they state is only 4.4 total .
Would be nice to see a rebuttle to prove me wrong , can anyone provide it ?

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Welcome back plough
With new information in announcement are you sticking with your original estimate from October of 15/1 stripping ratio and $700m Capex?

AW1 Price at posting: 4.5¢ Sentiment: Buy Disclosure: Held
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