Supporting Technical Assessments

Waihi Emergency Principal Control Plan Approved by: General Manager/SSE Approval Date: 26/03/2021 Next Review:26/03/2022 OceanaGold Waihi WAI-250-PLN-001 Page 49 of 124 Terms Definition Debrief A critical examination of an operation done to evaluate actions for documentation and future improvements. EMCP Emergency Action Control Plan Emergency An emergency is an unexpected event or series of circumstances that may endanger the health and safety of people and/or impact on the environment and/or cause damage or loss of equipment and production. Emergency Coordination Centre (ECC) A regional level CC that coordinates the regional response and provides support to local level responses. Emergency Operations Centre (EOC) A local level CC that coordinates the local response and provides support to incident level response activities. Event Realization of a hazard External Audit An audit in which the lead auditor, at the least, has no constant operational ties to the mine FRR Fatal Risk Register is a broad brush risk assessment of all existing principal and major hazards and mitigating controls at the Macraes Operation Haul Road A purpose built road designed and constructed to carry heavy loads Hazard A source or a situation with a potential for harm in terms of human injury or ill health, damage to property, damage to the environment, or a combination of these Heavy Mobile Equipment Those vehicles used in the process of moving coal or overburden and/or the construction and maintenance of mine infrastructure. Includes haulers, low loaders, graders, water trucks, dozers and front end loaders ICP See Incident Control Point. Pronounced I-C-P. ICT see Information Communications Technology Impact Analysis An analysis of the hazards and environment, that aims to determine the most likely and the most dangerous scenarios for the hazard(s) to progress. These are critical in forming a proactive Action Plan and response. IMT See Incident Management Team. Pronounced I-M-T. Incident (1) An occurrence that needs a response from one or more agencies. It may or may not be an emergency. (2) The first official level of agency response (see ‘incident level response’). Incident Action Plan (IAP) See Incident Action Plan Incident Control Point (ICP) Single location where an Incident Controller and members of their IMT coordinate and manage response operations at an incident level response. Incident Level Response The first official level of agency response, carried out by first responders. Response personnel conduct physical actions such as clearing obstructed roads, treating casualties, fighting fires, conducting rescues, and delivering welfare services. They are supported and/or coordinated by the higher response levels. Incident Management Team (IMT) The group of incident management personnel that supports the Controller. Includes the Controller, the managers of Planning,

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