POLY4: A SUSTAINABLE PRODUCT

IDENTIFIED DEMAND BASED ON SUBSTITUTION Market attractiveness by nutrient 10 More attractive Less attractive Low-CI K₂O MgO Anglo American S Low-CI K₂O MgO S Low-CI K₂O MgO S Sharing incentives with established players Low-CI K₂O Low-Cl K₂O MgO S Low-Cl K₂O MgO S MgO S >10Mtpa offtake agreements Weighted ave price ~$140/t11 Based on January 2019 prices. Indicative weighted average FOB price for POLY4 under the offtake agreements outlined in Sirius Minerals' May 2019 prospectus. This figure is not a forecast of future pricing and future pricing could be materially different 14

View entire presentation