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RMI Environmental Social and Governance (ESG) Standard for Mineral Supply Chains 

The Responsible Minerals Initiative (RMI) is a membership organisation that encourages the responsible sourcing of minerals globally.

The RMI's Environmental, Social & Governance (ESG) Standard provides a set of criteria for facility level assessment, applicable to mineral processors, smelters and refiners, including those integrated with mine sites. It significantly extends the RMI’s scope, as the organisation had previously been focused on adherence to the OECD Due Diligence Guidance for Responsible Supply Chains of Minerals from Conflict-Affected and High-Risk Areas.

The RMI’s ESG Standard includes environmental criteria, occupational health and safety provisions, social obligations and governance requirements.

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ISO/TS 22451:2021 – Recycling of rare earth elements — Methods for the measurement of Rare Earth Elements in Industrial Waste and End-of-life Products

ISO is a non-governmental international standard-setting organization with a membership of 167 national standards bodies. It establishes best practices in a very wide range of activities and is not limited to mineral supply chains.

ISO/TS 22451 provides measurement methods for quantifying rare earth elements (REEs) in industrial wastes and end-of-life products in solid, solid-liquid mixture or liquid forms. It provides an overview of sample preparation and measurement of REEs in industrial waste and end-of-life products.

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