JORC and NI 43-101 estimates of economic brine resources for planning and development

Unlike traditional mineral resources that occur as solid deposits, mineral-enriched brine resources reside within porous- and fractured-rock aquifers. Estimating the mineral resources and reserves in a brine deposit presents technical challenges; this process requires understanding not only the spatial and temporal variability of brine densities and concentrations but also the variability of flow characteristics in the host aquifer. Since 2009, M&A has helped clients develop sound mining plans by exploring, characterizing, quantifying, and developing their mineral reserves.


  • More than 25 lithium brine resource/reserve projects including 12 completed projects
  • Providing hydrogeologic services for major lithium mining clients and projects including Galaxy Resources Inc. Sal de Vida Project; Eramine Salar de Centenario Project; Rincon Lithium Salar de Rincon Project; SQM Salar de Atacama Project; and Millenial Lithium Corp. Pastos Grande Project


  • Planning and supervising brine resource exploration and development
  • Conducting 3D geologic modeling and flow and transport groundwater modeling
  • Estimating lithium and potassium brine resources and reserves
  • Conducting field and modeling investigations to define drainable resources and economically extractable reserves
  • Conducting geostatistical evaluation of hydraulic parameters and assays
  • Developing variable density groundwater flow models to predict how mineral concentrations change with pumping
  • Designing wellfields, trenches, and extraction systems
  • Predicting sustainable production rates
  • Exploring and assessing freshwater resources required for mineral processing
  • Providing expert review and assessment of technical reports and site conditions
  • Preparing technical reports by Qualified Persons in compliance with Canadian National Instrument (NI) 43-101 and Australasian Joint Ore Reserves Committee (JORC) requirements

To learn more, contact Chris Cottingham at 971.227.2256 or for South America, Mike Rosko at 520.599.9333