Investor Presentaiton

2021 INVESTOR DAY Maintenance and Renewals Strategy and Budget (MRSB) Constructive engagement provides benefits for both Network and Customers AURIZON. Key Benefits of MRSB Engagement Customers ✓ Visibility of future asset requirements and cost drivers Ability to influence asset management strategy for each Coal System Increased Network accountability to deliver planned maintenance and renewal activity Annual MRSB Approvals Process 30 November Network submits initial Draft MRSB for each Coal System to Rail Industry Group (RIG)1 1 January RIG Feedback provided to Network 21 January Network submits Final Draft MRSB to RIG Aurizon Network Flexibility to adjust costs based on asset need during regulatory period Annual process reducing potential forecast risk Customer pre-endorsement of renewal spend 14 February RIG advises End User voting outcome (Special Majority required) If an MRSB is not approved, RIG may propose an alternative budget Network may either accept the alternative or submit a proposal to the QCA for determination Outcome incorporated in annual Reference Tariff review process 1. RIG forum comprised of End Users, Access Seekers and Railway Operators (voting in each system restricted to End Users only) 56

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