Consulting and Feasibility Studies

Consulting and Feasibility Studies

Capabilities

Scoping-level technical and economic evaluationto determine project viability. Order-of-magnitude capital and operating cost estimates, preliminary flowsheet selection, and sensitivity analysis.

Intermediate-level studies with defined flowsheets, equipment lists, general arrangement layouts, Class IV/V capital estimates, and operating cost models. Sufficient for NI 43-101, JORC, or S-K 1300 mineral reserve statements.

Definitive studies with confirmed flowsheets, detailed engineering basis, Class III capital estimates, and operating cost projections suitable for project financing and construction decisions.

Independent metallurgical and engineering review for mergers, acquisitions, and project financing. Assessment of testwork adequacy, flowsheet risk, capital cost accuracy, and operational readiness.

Comparative evaluation of alternative process routes, technologies, or equipment configurations. NPV, IRR, and payback analysis for decision support.

Licensed Professional Engineers (PE) and Qualified Persons (QP) for metallurgical sections of NI 43-101 technical reports and JORC-compliant studies.

Integration of metallurgical testwork with geological models to define geometallurgical domains, predict plant performance by ore type, and optimize mine-to-mill
scheduling.

Evaluation of concentrate, precipitate, and final product quality against market specifications and offtake requirements. Penalty element analysis and product
optimization.

Development of factored, semi-detailed, and detailed capital cost estimates. Operating cost models based on reagent consumption, energy, labor, and maintenance from testwork and benchmarking data.

Identification and quantification of metallurgical, engineering, construction, and operational risks. Mitigation strategies and contingency planning.

Independent technical advice from exploration through bankable feasibility
— backed by our own testwork.

RDi’s 10,000+ square-foot metallurgical testing laboratory in Wheat Ridge, Colorado provides independent, confidential testwork for the global mining and minerals industry. We design every program around your specific orebody, project stage, and economic objectives — delivering the data you need for engineering studies, feasibility reports, and plant design.

Project Stages We Support

Stage RDi/MTS Role
Exploration Sample preparation, assay, initial metallurgical characterization
Scoping / PEA Bench-scale testwork, preliminary flowsheet, order-of-magnitude costs
Pre-Feasibility Locked-cycle testing, variability programs, PFS-level engineering
Bankable Feasibility Confirmatory testwork, detailed engineering basis
FEED / Detailed Design Process design criteria, P&IDs, equipment datasheets, cost estimates
Construction Design-build execution through McCarl’s LLC
Commissioning Startup support, performance testing, optimization
Operations Plant audits, debottlenecking, ongoing technical support

Who This is For

  • Mining companies at any project stage from grassroots exploration to operating plant optimization
  • Private equity and institutional investors evaluating mining project investments
  • Banks and lenders requiring independent technical review for project finance
  • EPCs and developers seeking integrated testwork + engineering for fast-track projects

All Services

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