Nickel Sulphides

* Effective date of resource estimate February 15th 2018. All resources reported at a 0.83% NiEq cut-off. No modifying factors have been applied to the estimates. Tonnage estimates are rounded to the nearest 1,000 tonnes. Metallurgical recovery factored into the reporting cut-off. Where used in the Mineral Resource Estimate, NiEq% = Ni%+ Cu% x $3.00/$8.00 + Co% x $12.00/$8.00 + Pt [g/t]/31.103 x $1,300/$8.00/22.04 + Pd [g/t]/31.103 x $700/$8.00/22.04 + Au [g/t]/31.103 x $1,200/$8.00/22.04.  For further information, please see the technical report entitled “NI 43-101 Technical Report Updated Preliminary Economic Assessment (PEA) of the Tamarack North Project – Tamarack, Minnesota” with an effective date of March 12, 2020.

** Nickel Feature Article: Nickel Mine Grade Decline, AME Group, 2020 Forecast