Project Proposal description The Proposal is to construct and operate an open cut gold mine approximately 275 km southeast of Perth and 37 km northeast of Katanning, WA. The total disturbance proposed is up to 68.78 hectares (ha), which includes the disturbance of 58.39 ha of native vegetation over a 10-year life of mine. The annual total pit dewatering volume is estimated to be 0.4 gigalitres per year (GL/yr) with a maximum of 0.5 GL/yr. Proposal Content Document Proposal Content Document - April 2026.pdf (PDF, 851.86 KB) Assessment Number 2564 Region Perth Referred under EP Act s38 Industry sector Gold Last updated April 20, 2026 1. Referral Comment on this referral Katanning Gold Project Referral documentation Appendix A_s38 Referral Form.pdf (PDF, 434 KB) Appendix AA_GHG Assessment Technical Report 2025.pdf (PDF, 580.49 KB) Appendix B_Proposal Content Document.pdf (PDF, 255.05 KB) Appendix BB_Bennelongia Subterranean Fauna Report 2025.pdf (PDF, 5.28 MB) Appendix C_Open Pit Definitive Feasibility Study Report.pdf (PDF, 11.06 MB) Appendix D_Traffic Impact Assessment Report 2025.pdf (PDF, 9.76 MB) Appendix E_SRK Material Characterisation Report 2025.pdf (PDF, 1.08 MB) Appendix F_Stakeholder Engagement Management Plan.pdf (PDF, 2 MB) Appendix G_Simply Stakeholders - Stakeholder Register.pdf (PDF, 259.63 KB) Appendix H__KGP Community Survey Results.pdf (PDF, 332.02 KB) Appendix I_Corporate Community Engagement Policy.pdf (PDF, 229.89 KB) Appendix J_Hydrobiology Waterway Monitoring Plan 2025.pdf (PDF, 5.18 MB) Appendix K_Mattiske Flora and Vegetation Report_2025.pdf (PDF, 7.37 MB) Appendix L_Talis TEC Summary Memo_2025.pdf (PDF, 4.41 MB) Appendix M_Targeted flora survey for Roycea pycnophylloides 2025.pdf (PDF, 3.61 MB) Appendix O_Stantec Terrestrial Fauna Monitoring and Management Plan 2025.pdf (PDF, 4.09 MB) Appendix P_Section 18 Consent.pdf (PDF, 161.24 KB) Appendix Q_Terra Rosa 2011 Site Avoidance Report Jinkas Hill Prospect Area.pdf (PDF, 2.27 MB) Appendix R_Terra Rosa 2015 Heritage Survey Jinkas Hill.pdf (PDF, 7.02 MB) Appendix S_Terra Rosa 2019 Cultural Salvage Outcomes Jinkas Hill.pdf (PDF, 519.04 KB) Appendix T_Environmental Noise Assesment 2025.pdf (PDF, 5.37 MB) Appendix U_Visual Impact Assessment Report 2025.pdf (PDF, 6.38 MB) Appendix V_KGP Sub-Surface Materials Characterisation Report 2025.pdf (PDF, 11.27 MB) Appendix W_Landloch Baseline Soil Assessment 2024.pdf (PDF, 10.13 MB) Appendix X_Pre-Feasability Study_Characterisation of Waste Rock 2022.pdf (PDF, 1.67 MB) Appendix Y - Site Based Environmental Management Plan.pdf (PDF, 16.03 MB) Appendix Z_Air Quality Report 2025.pdf (PDF, 14.24 MB) Appendix N1_TE Fauna Report - no figures no appendices - REDACTED.pdf (PDF, 12.96 MB) Appendix N2_TE Fauna Report - no figures no appendices.pdf (PDF, 17.13 MB) Appendix N3_TE Fauna Report_Figures.pdf (PDF, 20.09 MB) Appendix N4_TE Fauna Report_Figures_REDACTED.pdf (PDF, 15.39 MB) Appendix CC1 Ausgold Hydrogeological Report 2025.pdf (PDF, 82.25 MB) Appendix CC_2_Ausgold Integrated Hydrogeological Report 2025.pdf (PDF, 97.11 MB) TE23003 - Ausgold s38 Referral_Supporting Doc_1.0_Signed_FIGURES ONLY.pdf (PDF, 67.57 MB) 2. Decision on whether to assess this proposal Chair's Determination Assess - Additional Assessment Information (public review) Extract of determination Katanning Gold Project (PDF, 169 KB) Preliminary Environmental Factors Air Quality Flora and Vegetation Inland Waters Social Surroundings Terrestrial Fauna Date published Tuesday, 23 December, 2025 3. Assessment Change to proposal during assessment under s. 43A s. 43A notice s. 43A Notice - 200426.pdf (PDF, 1011.87 KB) Date of approval s. 43A Mon, 20/04/2026 - 12:00
