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 22 of 44 Hazardous Substances Management Plan Term/Word Meaning Hazardous Substance Is the legal term for substances regulated by New Zealand’s Hazardous Substances and New Organisms Act 1996 (HSNO Act). Means, unless expressly provided otherwise by regulations, any substance a) With one or more of the following intrinsic properties: i. Explosiveness ii. Flammability iii. A capacity to oxidise iv. Corrosiveness v. Toxicity (including chronic toxicity) vi. Eco toxicity, with or without bioaccumulation, or; b) Which on contact with air or water (other than air or water where the temperature or pressure has been artificially increased or decreased) generates a substance with any 1 or more or the properties specified in paragraph (a). Health & Safety at Work Hazardous Substances Regulations 2017 In these regulations, unless the context otherwise requires, hazardous substances- a) has the same meanings as in section 2(1) of the HSNO Act, as that meaning is modified by sub clause (2); but b) does not include food, but includes a food additive and c) does not include medicine, but includes new medicine that is treated as hazardous under the HSNO Act and d) does not include a psychoactive substance that is treated as not hazardous under the HSNO Act. In this regulation – adopted joint food standard has the same meaning as in section 397 of the Food Act adopted joint food standard has the same meaning as in section 397 of the Food Act 2014 food— a) has the same meaning as in section 9 of the Food Act 2014; but b) does not include a food additive food additive means a substance that— (a) is identified in an adopted joint food standard as a substance intended to be mixed with or added to any food or drink; and (b) has not been so mixed or added HSMP Hazardous Substances Management Plan. Internal audit An audit conducted by mine personnel. Label A set of information on a container which: a) identifies the substance in the container; b) identifies whether the substance is hazardous; and c) provides basic information about the safe use and handling of the substance. Person in Charge The person who is in control of the place where hazardous substances are present e.g. Department Manager. Risk The risk of injury or illness to a person or damage to equipment arising out of a hazard. RA (Risk Assessment) A Risk Assessment is the process of determining the likelihood and consequence of a specific negative event (or risk). Risk Phrase These are the risk definitions used in the ChemAlert system

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