EVALUATION

GEM is specialized on the technical-economical evaluation of mine plans. For assessing these projects, we implement leading methodologies and tools.

The Evaluation Area transforms the complexity of mining projects into clear, well-founded decisions. Our mission is to quantify risks and uncertainties, measure the true economic value of copper projects, assess the level of operational confidence, and provide tools that allow executives and planners to make strategic decisions with certainty.

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RISK ANALYSIS AND MANAGEMENT STUDIES

We conduct Risk Analysis and Management studies applied to projects and operations, incorporating advanced methodologies such as probabilistic simulation, sensitivity analysis, and Value-at-Risk (VaR) metrics. These studies identify critical variables—mining productivity, water availability, logistics costs, market prices—and show how their variability impacts key profitability indicators (NPV, IRR, payback).

 

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MINE-SERVICE RISK PLANNER

Through our proprietary integrated planning model (Mine-Service Risk Planner), we evaluate the robustness of production and service plans under risk scenarios. The methodology links schedules, risks, and production plans, identifying “levers” and “triggers” that ensure compliance with production and financial commitments. This approach has been successfully applied in copper operations in Chile and Peru, detecting compliance biases and optimizing strategies for critical services.

 

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ECONOMIC EVALUATION

We also build Economic Evaluation models from scratch for Scoping/PEA, Pre-feasibility, Feasibility, and Investment stages. We develop end-to-end models that integrate mine, plant, and logistics, considering market, tax, and contractual assumptions, and generating key metrics such as NPV, IRR, payback, and Value-at-Risk. Our added value lies in ensuring consistency between operational assumptions and financial results.

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REAL OPTIONS

We develop evaluations based on a Real Options approach, integrating operational flexibility as a strategic asset. This approach allows us to assess expansion decisions, mine-plant sequencing adjustments, or the convenience of deferring investments, quantifying how flexibility reduces risk exposure and increases the expected value of the project.

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DUE DILIGENGE

Finally, we conduct technical-economic Due Diligence, combining technical, financial, and risk reviews for investors and mining companies. Our value lies in transforming data and uncertain scenarios into clear decision criteria, building stakeholder confidence and ensuring projects are robust in the face of market volatility.

The result is an area that not only evaluates projects, but also enables our clients to make decisions with certainty, strengthen the resilience of their projects, and secure their long-term competitiveness.

 

OUR EXPERIENCE

The most important evaluation projects developed by GEM are:

  • Risk Management and evaluation models for several of the main operations of copper, gold and non-metallic extraction in Chile
  • Evaluation, Risk Analysis and Real Options projects for the copper mining industry. The assessed projects have ranged from early stages to feasibility stages and have been developed for some of the main mining companies in the world.
  • Risk Analysis for long, mid and short term mine plans for the biggest producers of gold, copper and non-metallic resources in Chile.
  • Economic and Risk Evaluation of an important open pit and underground operation placed in northern Chile.
  • Evaluation and Risk Evaluation of the replacement process of loading equipment for an operation that produces copper oxides.
  • Social evaluation of projects in stages of prefeasibility and feasibility in the copper mining industry in Chile.
  • Due Diligences for projects that consider the acquisition of others in the copper mining industry in Chile.