Investor Presentaiton

2 Milestone Phase 1: Strong Project Fundamentals Attractive capital cost and production profile leads to a defensive cost position relative to peers and robust Phase 1 economics Strong free cash flow generation Consistent cash flow generation at steady state Initial capital cost Low capex, with over C$200m already spent C$40+ million annual after-tax cash flow > C$200 million MOP annual production Clear path to larger scale production 146ktpa (Phase 1) 150ktpa to 450ktpa (Phase 2) *Operational Cost estimate as per N143-101 Report Operating cost C$91/t Operating cost Freight OPEX Western Potash Corp. 7

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