Ann: Investor Webinar Presentation, page-75

Tritton already has 10 years worth of resources Loc (as opposed to reserves).

According to Romano (Katana Asset Management) At 250,000 tonnes of contained copper, this equates to more than 10 years at the current production rate. At the current high copper price, we would expect a solid and ongoing conversion of resources into reserves. But there is an even more important point. Reserve definition drilling requires a much higher level of saturation. Most mines of this nature drill the ore body to sustain mine plans (only) several years out. As the mine goes deeper, infill drilling of known resources will continue to add to reserves. The best demonstration of this is to review past reserve statements. In 2013, total Copper reserves were 126,000 tonnes. Since then the Tritton mine has produced nearly 190,000 tonnes and counting.

This is exactly how Cracow (AIS's other mine) is being run too. AIS has a habit of drilling the ore body to sustain mine plans only. This keeps the cost down to have more $$ for the M&A warchest.

Tell you what, with drilling cost so high. It is a good time to own a drilling company. Something about selling shovels during the gold rush back in the day comes to mind.