Supporting Technical Assessments

Approved by: Process Manager Approval Date: 16/12/2021 Next Review: 16/122023 OceanaGold Waihi Document ID: WAI-250-PLN-003 Page 24 of 44 Hazardous Substances Management Plan 15 APPENDICES Note: Information required by the Compliance Certifier for renewal of the Location Compliance Certificate is also included as appendices. 15.1 Supporting Documents The following Standard Operating Procedures, Management Plans and Site Standards are managed electronically on the OGNZL intranet document control centre and/or equivalent contractor document control systems: Document Name Type Owner Department General Safety General Induction Induction OGNZL HSE Job Hazard Analysis Standard OGNZL HSE Waihi Risk Management Standard Standard OGNZL HSE Waihi Risk Register Register OGNZL HSE Processing Waihi Cyanide Management Plant Plan OGNZL Processing Radiation Safety Plan for Industrial Gauging Plan OGNZL Processing Bulk Sodium Cyanide Transport Delivery and Unloading SOP OGNZL Processing Bulk Cyanide Delivery Checklist Checklist OGNZL Processing Sodium Cyanide Transport Delivery Unloading and Mixing Security SOP OGNZL Processing Hydrochloric Acid Product Delivery SOP OGNZL Processing Hydrogen Peroxide Product Deliver SOP OGNZL Processing Liquid Oxygen Product Delivery SOP OGNZL Processing Carbon Dioxide Product Delivery SOP OGNZL Processing Radiation Safety Plan for Industrial Gauging SOP OGNZL Processing Sodium Hydroxide Product Delivery SOP OGNZL Processing Sulphuric Acid Product Delivery SOP OGNZL Processing Ferric Chloride Product Delivery SOP OGNZL Processing WTP Reagent Dosing SOP OGNZL Processing Process Plant LPG Delivery SOP OGNZL Processing

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