Investor Presentaiton

■ Millions tonnes MOP production 6 Plan for Expansion: Clear Path to 300ktpa+ Production Western Potash has a clear path to 300ktpa+ MOP production through a staged modular growth approach Phase 1 will prove mining approach and generate significant cash flow Phase 2 is a duplication of Phase 1, representing a near-term path to 300ktpa MOP production 1.4 1.2 0.8 0.6 0.4 0.2 1 0 Timeline from today Phase 2 mirrors Phase 1, simplifying expansion Phase 2: 2025 (up to 300 ktpa) Phase 1: 2023 (146ktpa) Source: December 23, 2021, March NI-43-101 Report, company estimates Phase 3 & 4: 2028+ (1.4Mtpa/each) 15

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