Investor Presentaiton

APPENDIX ANTIMONY - A DISRUPTIVE BATTERY METAL The Anode of the Future · 51 Sb Antimony 121.76 · • · Antimony is a a liquid metal battery that can be used as the cathode in batteries SUMMIT SM MINERALS LTD Affordable grid-scale storage systems for solar and wind - can rebalance unbalanced passive energy systems Less than one-third the cost of the lithium, nickel, manganese and cobalt in the most common lithium-ion cells Not temperature sensitive, over-charge and over-discharge tolerant, no cooling or fire suppression required and safe. Minimal memory fade + minimal deleterious elements + no moving parts = minimal battery degradation = no augmentation = long-battery life (20+ years) Ambri Antimony Batteries • • . • Ambri Inc., an MIT-spinoff long-duration is a highly innovative battery energy storage system company Ambri batteries use a solid Antimony cathode, a molten salt electrolyte and liquid calcium alloy anode Secured US$144 million (AU$195 million) in funding to advance calcium-antimony liquid metal battery chemistry Notable Ambri investors include Bill Gates 21

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