Sustainability Report 2021

GREENHOUSE GAS EMISSIONS BY OPERATION (TONNES CO2 EQUIVALENT) FY21 FY20 Scope 1 Scope 2 Total Scope 1 Scope 2 Total Nova Operation 62,347 N/A 1 62,347 62,273 N/A 1 62,949 Exploration projects 989.6 39.5 1,029 1,263 50 280 Corporate office N/A 2 98.5 98.5 N/A 2 123 123 Total 63,337 138 63,475 63,536 3 173 63,709 3 1. There were no Scope 2 emissions generated from the Nova Operation in FY21 or FY20. 2. There were no Scope 1 emissions generated from the corporate office in FY21 or FY20. 3. The FY20 Scope 1 emissions changed slightly from what was reported in the 2020 Sustainability Report (63,179t CO 2 -e), due to updated guidance received by the Clean Energy Regulator after the public release of the report. Environment Read more – page 72 OPERATIONAL ENVIRONMENT PROFILE FY21 FY20 Significant environmental incidents - - Value of fines and prosecutions - environment (A$) 110,143 1 - DMIRS Improvement notices received - environment - - DMIRS Prohibition notices received - environment - - Total water consumption (megalitres) 2,256.12 2,110.82 Total water withdrawal (megalitres) 1,136.62 1,332.43 Total water discharge (megalitres) 51.69 43.11 Water recycled in process (megalitres) 1,077.42 877.90 Waste rock (tonnes) 165,787 187,153 Tailings (dry tonnes) 1,414,966 1,293,793 Materials to on-site landfill (tonnes) 1,044 908 Materials recycled off-site (tonnes) 566 1,040 1. IGO was subject to a penalty of A$110,143 for a breach of our exploration tenement conditions. Read more page 86. LAND DISTURBANCE AND REHABILITATION (HECTARES) FY21 FY20 FY19 FY18 FY17 Land disturbance 139 122 387 817 90 Rehabilitation 687 577 171 5 41 IGO SUSTAINABILITY REPORT 2021— 103