SPOIL REPORT AUGUST 2023 – JANUARY 2024

The strategy for the management of spoil aims to prioritise the reuse and placement of materials, based on its generating source and classification, consistent with the requirements of the Infrastructure Approval and the objectives and commitments from the Environmental Impact Statement (EIS) and Response to Submission (RTS): • Beneficial reuse of non-reactive spoil within permanent infrastructure. [...] • describe the measures that would be implemented to comply with the spoil management requirements in condition 4 and the design objectives GF01 spoil emplacement is being constructed in accordance in Table 2 of the COA; with the design which meets the Design Objectives in schedule 3 condition 6 of the Infrastructure Approval. [...] Once the • include a topsoil strategy outlining measures the measures that would Rehabilitation Management Plan is approved, the final landform, be implemented to ensure the surface pf the emplacement areas will be including PCT and topsoil quantities will be reviewed for suitable to sustain the target PCTs in the long term, having regard to the implementation. [...] Check any changes to the Tantangara design against Tantangara design is criteria and objectives in the design for the final modified, and this results in emplacement area, the Rehabilitation Management The Tantangara PSE design is currently being changes to the landform’s Plan, and the Recreation Management Plan. [...] The outcomes will be used to better understand the reactivity of sulphides in excavated rocks, the release rates of contaminants, and the water quality evolution in response to long- term oxidation and weathering that may affect the Placement of spoil at Tantangara PSE has not yet Neutral mine drainage design of the final landforms and the quality of commenced.