Approved by: Process Manager Approval Date: 16/12/2021 Next Review: 16/122023 OceanaGold Waihi Document ID: WAI-250-PLN-003 Page 6 of 44 Hazardous Substances Management Plan 1 PURPOSE To identify, analyse and ensure systems are established and maintained to minimise risk of adverse health effects to all employees and contractors, due to exposure to hazardous substances and dangerous goods produced or used at Waihi Operations-controlled site and to comply with OceanaGold Corporate Environment Hazardous Materials and Chemical Substances standard. 2 SCOPE This Plan applies to all requirements and activities associated with Hazardous Material and Chemical Substances at Waihi Operations except for: • Class 1 Hazardous Substances (Explosives - these are covered in the Explosives Principal Hazard Management Plan), • Class 7 Radioactive Substances – covered in the Radiation Safety Plan and is managed by its own Act Radiation Protection Act. 3 LEGAL REQUIREMENTS Relevant Acts Hazardous Substances and New Organisms Act 1996 – and amendments Health and Safety at Work Act 2015 Relevant Regulations Health and Safety at Work (Hazardous Substances) Regulations 2017 Hazardous Substances and New Organisms (Personnel Qualifications) Regulations 2001 Hazardous Substances (Forms and Information) Regulations 2001 Stationary Tanks Connected to a Generator Set) Amendment Safe Work Instrument 2019 Health and Safety at Work (Hazardous Substances – Specification of Design Standards for Low-Pressure Fire Extinguishers) Safe Work Instrument 2019 Health and Safety at Work (Hazardous Substances – Specification of Design Standards for Refillable Cylinders) Amendment Safe Work Instrument 2019 Health and Safety at Work (General Risk and Workplace Management) Regulations 2016 Health and Safety at Work (Mining Operations and Quarrying Operations) Regulations 2016 4 MANAGEMENT SYSTEMS 4.1 HSEC Management System OGNZL’s mining activities, by their nature, have the potential to impact the health and safety of people, the environment and communities. These impacts must be identified, evaluated and managed to minimise the risks. The OceanaGold Heath Integrated Management System (IMS), Safety, Environment and Community performance standards are an integral part of OGNZL’s business and provide the basis for a HSEC management system. The implementation and maintenance of the management system provides the means to manage and minimise risks, comply with legislation and OceanaGold Standards, and provides the framework for continuous improvement in Health, Safety, Environment and Community management and performance. The management system follows a hierarchical structure where documents must meet and support the requirements of those of higher levels (see Figure 1). The scope of the management system covers all activities undertaken by OceanaGold employees and contractors that have the potential to affect Health, Safety, Environmental and Community performance. The IMS and HSEC performance Standards apply to all operations and facilities, including the entire lifecycle of operations, from exploration through to operation and closure, until lease relinquishment occurs.
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