Sustainability Report 2021

MEASURING OUR PERFORMANCE Sustainability Indicators & Targets Progress FY21 FY20 Read More Environmental impact management Reducing our exploration impacts and maintaining progressive rehabilitation commitments Pages 74-77 Reducing our operational impacts – the land management impacts associated with Nova Operation are minimal Pages 74-77 Water use The impacts associated with IGO’s water consumption are minimal. We undertook a significant program of work in FY21 to improve the accuracy of our Nova Operation water balance Pages 79-80 Mineral residue management Effective management of tailings storage facilities and waste rock Page 78 Zero significant discharges to land and water 1 There were zero significant discharges to land, water bodies, water courses or groundwater in FY21 Page 103 Zero significant environmental incidents 1 There were zero significant environmental incidents in FY21 Page 103 1. A significant event resulting from IGO operated activities is one with a severity of consequence rating of ‘significant’ and above, based on our internal risk assessment model (tiered from one to five by increasing severity), as defined in our Common Management System Standard 3 – Risk Management. Target met/acceptable performance Target on track/adequate performance Target not met/we need to do better Future target Environment Each Standard has been developed to meet industry best practice and is based on relevant Australian and internationally accepted standards. These include the Leading Practice Sustainability Development Program for the Mining Industry (Australian Department of Industry, Innovation and Science), and publications produced by the Minerals Council of Australia, and the International Council on Mining and Metals (ICMM). The Standards were benchmarked against our peers and incorporated feedback from both our workforce and our host communities. Key to maintaining our social licence to operate is complying with all relevant regulations and conditions on our mining tenure. We maintain and update a Group-level obligations register which is used to systematically capture the environmental conditions associated with our tenements, obligations arising from environmental approvals and other public commitments. APPROACH TO IMPACT MANAGEMENT At IGO, we are committed to safeguarding the environment and take a precautionary approach to environmental management. We acknowledge that our activities have the potential to adversely impact on the environment and are committed to mitigating these impacts by integrating environmental considerations into all stages of our activities. We are careful to ensure that both science and stakeholder feedback informs our approach to impact mitigation. While IGO’s environmental impacts are relatively minor, we have an ongoing commitment to make a real but proportionate contribution to addressing global environmental challenges, such as global warming, biodiversity loss, deforestation, water pollution, soil degradation and waste management. Land clearing and rehabilitation Currently IGO’s single largest environmental impact is land clearing. Given the current technologies required for exploration, IGO, like other explorers, must physically explore ‘on the ground’ and use on-ground electromagnetic surveys, seismic surveys, surface soil sampling and drilling tools. Invariably this requires the creation of cleared tracks for the passage of vehicles. While the need for these tracks is temporary, vegetation is removed. In total, IGO manages 3.98M ha of land (IGO landholdings by mineral tenement, page 12), of which approximately 1,130ha have been disturbed by our operations or activities. Land clearing is a fundamental pressure on the environment. It causes the loss, fragmentation and degradation of native habitats and ecosystems; it impacts soils through erosion and loss of propagule and nutrients; and 74 —IGO SUSTAINABILITY REPORT 2021