Sustainability Report 2021

FY21 Exploration Summary FRASER RANGE Ni, Cu, Co IGO various interest levels up to 100% Targeting magmatic nickel-copper-cobalt deposits in the Albany Fraser Orogen. Activities included: • Diamond drilling of specific targets • Air core drilling follow-up of regional air core anomalies; and • Continuation of geophysics program. PATERSON Cu, Co, Au IGO earning up to 70% Targeting sediment-hosted copper-cobalt and copper-gold deposits in a highly prolific mineral province. Activities included: • Diamond drilling of specific targets • Air core drilling of mineralised trends; and • Regional soil geochemical surveys. KIMBERLEY Ni, Cu, Co IGO earning up to 85%, extensive IGO 100% tenements Targeting magmatic nickel-copper-cobalt deposits along the Halls Creek and Wunaamin-Miliwundi Ranges. Activities included: • Airborne magnetic and radiometric survey • Diamond drilling of specific targets; and • Down-hole EM surveys. LAKE MACKAY Cu, Au, Ni, Co IGO earning up to 70% Targeting copper-gold deposits in an unexplored emerging mineral province. Activities included: • Reverse circulation drilling and diamond drilling of targets and prospects • Regional soil geochemical sampling; and • Down-hole EM surveys. COPPER COAST Cu IGO 100% Targeting sediment-hosted copper mineralisation in the Adelaide Rift basin and onto the Stuart Shelf. Activities included: • Diamond stratigraphic drilling of conceptual target areas; and • Ground gravity and magneto-telluric geophysical surveys. RAPTOR Ni, Cu, Co IGO 100% Targeting nickel-copper deposits along the Willowra Gravity Ridge in the Northern Territory. Activities were limited to the completion of an aeromagnetic-radiometric survey, with most tenements still in application. FRONTIER Cu IGO 51%, earning up to 80% Targeting sediment-hosted copper deposits in a geological setting analogous to the Central African Copper Belt. No work programs were possible in FY21 due to COVID-19 related travel restrictions. DE BEERS DATABASE IGO 100% Analysis of unique heavy mineral concentrate samples for project and target generation across Western Australia and Australia. IGO SUSTAINABILITY REPORT 2021— 13