In 2015, Tetra Tech completed NI 43-101 compliant Mineral Resource and Mineral Reserve Estimates:

2015 Mineral Resource Estimate
Measured & Indicated 5.64Mt @ 1.01% Ni
Inferred 0.36Mt @ 0.84% Ni
Total 6.08Mt @ 1.01% Ni

 

2015 Mineral Reserve Estimate
Proven 4.1Mt @ 0.96% Ni           571,000 tonnes contained nickel