2021 Annual Report

Glossary FORWARD-LOOKING STATEMENTS This document may include Forward-looking statements. Forward-looking statements include, but are not limited to, statements concerning IGO’s planned production and planned exploration program and other statements that are not historical facts. When used in this document, the words such as “could”, “plan”, “estimate”, “expect”, “intend”, “may”, “potential”, “should” and similar expressions are Forward-looking statements. Although IGO believes that its expectations reflected in these forward-looking statements are reasonable, such statements involve risks and uncertainties and no assurance can b given that actual results will be consistent with these Forward-looking statements. CASH COSTS All cash costs quoted include royalties and are net of by-product credits unless otherwise stated. CURRENCY All currency amounts in this report are Australian Dollars unless otherwise stated. ALL-IN SUSTAINING COSTS (AISC) PER OUNCE OF GOLD SOLD IGO reports All-in Sustaining Costs (AISC) per ounce of gold sold in AUD for its 30% interest in the Tropicana Gold Mine using the World Gold Council guidelines for AISC. The World Gold Council guidelines publication was released via press release on 27 June 2013 and is available from the World Gold Council’s website. IGO ANNUAL REPORT 2021 — 141