Sustainability Report 2021

Stakeholder A person or group that is influenced by, or can influence, an organisation. Sustainable development Development that meets the needs of the present without compromising the ability of future generations to meet their own needs. Sustainable development typically encompasses the three dimensions of economic, environmental and social. It refers to broader environmental and societal interests, rather than to the interests of specific organisations. SWIS South West Interconnected System of Western Australia. SWIS is an electricity provider sourcing energy from a wide range of sources, including wind farms, solar and other renewables. t Metric tonnes TCFD Taskforce on Climate-related Financial Disclosures Tropicana Operation Tropicana Gold Mine, divested by IGO in May 2021 TRIFR Total reportable injury frequency rate Many companies, including IGO, differentiate between total recordable injuries and total reportable injuries and the associated frequency rates. In Western Australia, total reportable injuries are defined by law, in that they include lost time injuries and reportable restricted work injuries. The frequency rate is calculated by the number of lost time and restricted work injuries / total hours worked (manhours) x 1,000,000 TSF Tailings storage facility Waste rock The sub-grade rock displaced during underground or surface mining operations Water consumption Defined in the GRI Reporting Standards as the sum of all water that has been withdrawn and incorporated into products, used in the production of crops or generated as waste, has evaporated, transpired, or been consumed by humans or livestock, or is polluted to the point of being unusable by other users, and is therefore not released back to surface water, groundwater, seawater, or a third party over the course of the reporting period. For IGO, this includes total water in product, water in paste holdup, water in tailings, decant water recycled, and evaporation and other losses. Water discharge Defined in the GRI Reporting Standards as the sum of effluents, used water, and unused water released to surface water, groundwater, seawater, or a third party, for which the organisation has no further use, over the course of the reporting period. For the IGO, this includes water discharged to licenced irrigation area. Water withdrawal Defined in the GRI Reporting Standards as the sum of all water drawn from surface water, groundwater, seawater, or a third party for any use over the course of the reporting period. For IGO, this includes groundwater from production bores, mine seepage, ore moisture and precipitation. Workers’ compensation Payments required by law to be made to an employee who is injured or disabled in relation to work. IGO SUSTAINABILITY REPORT 2021— 125