Mining engineering
GMT integrates geological, geotechnical and operational inputs to deliver end-to-end mine planning, from early evaluations to detailed designs that are practical, efficient and value-focused.
Mine planning
Mining studies and evaluation
We conduct mining studies at all levels – scoping, pre-feasibility, and bankable feasibility – providing mine designs, production plans, and cost forecasts that investors and stakeholders can rely on. Our extensive experience ranges from initial options studies through detailed engineering and capital upgrade planning. We use robust financial modeling and risk assessment (including scenario analysis and Monte Carlo simulations) to support sound decision-making.
Study development. Preparation of scoping to feasibility studies with designs, schedules and cost frameworks that guide investment decisions.
Option analysis. Assessment of multiple development pathways using technical, financial and operational criteria to refine project direction.
Risk evaluation. Application of scenario analysis and probabilistic methods to quantify uncertainty and strengthen decision confidence.
Caving studies
Cave mining
GMT delivers integrated block caving development assessments from concept through feasibility, grounded in direct operational experience and senior technical judgement. Our work combines geology, geomechanics, mine design and risk to determine technical viability, execution risk and long-term value of proposed caving developments. We focus on decisions that materially affect cave performance, safety and production reliability.
Study development. Integrated block caving assessment - concept to feasibility stage.
Numerical modelling. Cave propagation, fragmentation and cave flow.
Cave optimization. Cave footprint and height of draw.
Mine planning
Mine design
GMT develops open pit and underground mine designs tailored to each deposit and project context. For open pits, designs include pit shells, phases and slope configurations that balance value and geotechnical risk. For underground mines, we match mining methods and layouts to safety, productivity and long-term operating requirements. All designs integrate geotechnical conditions, ventilation, material handling and infrastructure from the outset to ensure practical and defensible execution.
Mine configuration.Definition of pit and underground layouts that balance value, safety and operating constraints.
Method selection. Evaluation of mining methods and access strategies aligned with deposit characteristics and project objectives.
Integrated design inputs. Coordination of geotechnical, ventilation and material handling requirements to support reliable execution.
Mine planning
Planning and scheduling
GMT develops practical mine plans and schedules that reflect the project’s objectives, constraints and operating context. We define mining sequences, phase or stope timing, equipment needs and workforce requirements to create schedules that are achievable and aligned with processing capacity and blending targets. Critical path elements are identified early, with contingency strategies incorporated to reduce execution risk and maintain production reliability over the life of the mine.
Sequence optimisation. Development of phased or stope-based sequences that balance productivity and operational constraints.
Operational alignment. Integration of processing capacity, equipment demands and workforce needs into practical schedules.
Risk-managed delivery. Identification of critical path items and implementation of contingencies to maintain schedule stability.
Operational efficiency
Equipment and optimisation
GMT supports clients in selecting equipment and technologies that match the requirements of their mining operation. Fleet configuration and haulage optimisation are evaluated to minimise unit costs while maintaining reliable production. Where beneficial, we assess readiness for emerging technologies including automation and continuous mining systems. Our team also reviews active operations to identify productivity gains, cost reductions and bottleneck removal, delivering measurable improvements through mine-to-mill optimisation and targeted operational refinement.
Fleet configuration. Assessment of equipment options and haulage strategies to reduce unit costs and improve productivity.
Operational improvement. Identification of bottlenecks and efficiency gains through focused operational and mine-to-mill reviews.
Technology readiness. Evaluation of automation and advanced mining technologies suited to the operation’s context and scale.
Independent review
Due dilligence
GMT conducts independent due diligence and technical reviews for investors, lenders and owners assessing mining projects worldwide. Our work evaluates mine plans, reserve estimates, production reconciliations and execution strategies to identify risks, validate assumptions and quantify upside potential. Reviews span acquisitions, joint ventures and project financing across multiple commodities.
Project evaluation. Assessment of mine plans, reserves and execution strategies to identify risks and opportunities.
Acquisition support. Independent reviews for mergers, acquisitions and joint ventures across global commodity sectors.
Lender oversight. Monitoring of construction progress and project performance to support financing and investment decisions.
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