The Florence Copper site hosts a shallowly buried porphyry copper deposit with probable reserves of 340 million tons grading 0.358% TCu (at a 0.05% total copper cutoff) containing 2.42 billion pounds of copper.
| CLASS | MILLION TONS | %TCU COPPER | MILLION POUNDS COPPER | |
| RESERVES | PROBABLE | 340 | 0.36 | 2,420 |
| RESOURCES | MEASURED | 296 | 0.36 | 2,100 |
| INDICATED | 133 | 0.28 | 741 | |
| M & I | 429 | 0.33 | 2,841 | |
| INFERRED | 93 | 0.27 | 496 | |
Based on 577,317 feet of drilling in 502 holes
Mineral Reserves and Mineral Resources at a 0.05% TCu cutoff
QP for the 2011 resource estimate is Russell White, RM-SME, RG
QP for the 2013 reserve estimate is Michael Young, RM-SME, Haley & Aldrich
Mineral reserves are contained within the measured and indicated mineral resources. Mineral resources that are not mineral reserves do not have demonstrated economic viability
