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Cut-Off Grade Methodology And Best Practices

By Gary Poxleitner

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Cut-Off Grade Methodology And Best Practices | SRK Consulting

PUBLICATION INFO

May 2018
CIM
Presentation

Mining operations strategically look at maximizing profitability and cash flow to support a productive and safe mine, but often spend less time and effort on determining the preferred cut off grade that will form the basis of a sustainable mine. The selection of a cut-off grade should consider the overall strategic corporate objectives, which may include maximizing NPV, reserve basis, upfront cashflow, and sustainability of cost fluctuations. It should also consider blending geography and the spatial variation of the grade distribution in the deposit. This paper is based on several actual operating and green field mines that have embraced a different path than common cut off approaches to determine the preferred cut off grade for their mines.

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Author

Gary Poxleitner | Principal Mining Engineer | Sudbury, Canada

Gary Poxleitner

Principal Mining Engineer

Gary Poxleitner has 30 years of operational, engineering, management, and consulting experience in the mining industry. He is an underground mining specialist with expertise in the areas of technical support, mergers and acquisitions, due diligence, audits, mine cost estimation, mine process optimization and operational improvement.

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