2021 Annual Report

Nova Operation NICKEL-COPPER-COBALT Operations Nova continued to deliver outstanding operational performance in FY21, with production exceeding guidance for all metals. LOCATION & HISTORY The Nova Operation is located in the Great Western Woodlands, approximately 140km by road east northeast of Norseman in Western Australia. The Ngadju are the Traditional Owners and custodians of this area and their native title was recognised by the Federal Court on 21 November 2014. The Nova deposit was discovered in July 2012, with development of the current operation commencing in January 2015. Following a successful construction and commissioning phase, the Operation commenced commercial production in July 2017, and reached its nameplate production rate in the September 2017 quarter. STRONG PERFORMANCE IN FY21 Nova continued to deliver outstanding operational performance in FY21, with production exceeding guidance for all metals, while cash costs of A$1.85 per payable pound of nickel confirmed the Operation’s position as the lowest cost nickel producer in Australia. Mining performance continued to be excellent, with mined grades remaining higher than reserve grade as we continued to prioritise high grade stopes. To provide an opportunity to increase mining rates in the future, a workstream focused on optimisation of the paste fill system was successfully completed. Completion of this program will remove a key constraint to increasing mining and processing rates in the future. 16 — IGO ANNUAL REPORT 2021