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 11 of 124 Scope This plan applies to all personnel and activities and applies to all persons in any capacity accessing the Waihi Mining Operation. This plan has been reviewed and authorised by the Site Senior Executive (SSE) after consultation with local emergency service providers. It has been developed with consideration of the limitations of Site emergency response capabilities and the identified potential need to use local emergency service providers to assist. • the scope of the mine EMP includes immediate response to and management of incidents on mine property • On site co-ordination of emergency services and other response specialists • The establishment of a system that enables all persons at the mine to be promptly located • The provision of adequate rescue equipment, and • That an adequate number of persons trained in the use of rescue equipment are available either on site or on call. This Plan will be reviewed by the following agencies to facilitate the best possible response and outcomes: • NZ Police (As changes arise) • FENZ (As changes arise) • St Johns Ambulance (As changes arise) • New Zealand Mines Rescue Service (As per legislative requirement) • WorkSafe New Zealand (As requested and as per legislative requirement) Definition of an 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, community and/or cause damage or loss of equipment and production. An emergency requires immediate actions to be taken to minimize adverse effects. Coordinated Incident Management System (CIMS) 1.4.1 A Common / Modular Framework Waihi Operation has incorporated the CIMS model in this plan to establish a modular and scalable framework for consistent response to any level – from a single agency response to a larger, multiagency response that may require co-ordination at the community or incident level or higher. CIMS enables agencies to plan for, train and conduct responses in a consistent manner, without being prescriptive. The purpose of CIMS is to achieve effective coordinated incident management across responding agencies by: • establishing common structures, functions and terminology used by agencies in incident management, yet within a framework that is flexible, modular and scalable so that it can be tailored to circumstances specific to any level or type of incident; and • Enabling agencies to develop their own processes, procedures and training for the execution of CIMS. • For the purposes of CIMS, an emergency is defined as a situation that poses an immediate risk to life, health, property, or the environment that requires a coordinated response. The components of emergency management are referred to as the ‘4Rs’. They are: • Risk reduction; • Readiness (to respond); • Response; and • Recovery. CIMS is applied during response, and therefore must be factored into readiness.

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