Resources and Reserves

Resources for the Ochoa deposit have been declared in the October 2016 NI43-101 Technical Report and re-estimated, along with a reserve estimation, in the internal March 2017 Feasibility Report. Resources and reserves are summarized below for the targeted “Poly2” domain:

Distribution of Ochoa Resources and Reserves
Poly2 Ore thickness distribution
Resources
Classification Tonnage (Mt) Volume (Mcu yd) Polyhalite Grade (%) Thickness (ft)
Measured167.071.389.84.6
Indicated223.995.687.84.5
Measured and Indicated 390.9 166.9 88.7 4.6
Inferred66.528.487.64.4
Reserves
Classification Tonnage (Mt)

Volume

(M cu yd)

Polyhalite Grade (%) Thickness (ft)
Proven46.820.089.15.4
Probable24.410.487.25.4
Proven and Probable 71.3 30.4 88.4 5.4

Highlights

  • Large, High-Grade Reserve Base of a Unique Mineral: global polyhalite reserves are scarce or difficult to develop; there are few competing producers and no producing competitors in the Americas
  • Proven and probable reserves totaling 71.3 million tons: average polyhalite grade of 88.4%
  • 391 million tons of Measured & Indicated Resources: significant reserve expansion potential