15 August 2025

The Evolution of Mineral Resources & Mineral Reserves within CIM

In an industry built on precision, trust, and foresight, the integrity of mineral resource and reserve reporting is crucial. It shapes investment decisions, project development, and ultimately defines the credibility of the entire mining sector.

CIM recently reclassified some of its committees as sub-sections of its societies to recognize this critical foundation and enhance its effectiveness. A key change was the evolution of the Geological Society of CIM into the Mineral Resources, Mineral Reserves Society (MRMRS). This new society now incorporates the Mineral Resources and Mineral Reserves (MRMR) Committee, which is well known for its role in establishing industry guidelines and standards.

The technical intricacies of mineral resource and reserve estimations are a specialized domain, often not comprehensively covered in traditional university curriculum. This creates a significant knowledge gap, making it challenging for young professionals to enter and excel in this "high-profile activity," as noted by Garth Kirkham, a respected figure in the industry – past CIM president, co-chair of the MRMR Committee, and chairperson of CRIRSCO.

The newly formed MRMRS is ready to directly address this need. The society plans to serve as the hub for advanced training and professional development in this vital area, nurturing the next generation of expert talent essential for the industry's future.

Beyond technical excellence, the MRMRS is committed to a broader, more inclusive dialogue. As Kirkham emphasized, this new CIM society is actively seeking to engage a wider audience, embracing diverse generations and disciplines. The executive welcomes social scientists and environmentalists alongside traditional geoscientists and engineers.

This approach is not just about expanding reach; it's about enriching the conversation. A larger audience will ensure that the development of mineral resources is viewed through a lens that considers societal impact, environmental stewardship, and technological innovation. This forward-thinking perspective was vividly apparent at the MRMR 2024 conference, which attracted participants from all backgrounds including AI groups, underscoring the society's dedication to pioneering advancements.

Public Comment Period is Open

CIM has opened a public comment period for proposed changes to its 2014 Definition Standards for Mineral Resources and Mineral Reserves. These proposed updates, which were requested by the Canadian Securities Administrators (CSA) to modernize mineral disclosure requirements, include new definitions for "exploration target," "scoping study," and "life of mine plan". Once finalized, these new definitions will be incorporated into National Instrument 43-101 – Standards of Disclosure for Mineral Projects (NI 43-101).

CIM is inviting all stakeholders, including investors and regulators, to provide feedback on these drafts by September 19, 2025.

The work that MRMRS does directly integrates into the regulatory framework that safeguards investor confidence and market integrity. This ongoing commitment to refining and modernizing industry standards is a testament to CIM's dedication to transparency, accountability, and continuous improvement. An evolving MRMRS ensures that Canada remains at the forefront of responsible and innovative mineral resource development, fostering a future where trust and excellence are inextricably linked.

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