Mineral and metals services

General Control offer services in the field of inspection of metals and minerals. Technicians are involved throughout the chain from extraction to loading / unloading of goods.


Our qualitative expertise covers sampling, measurement and technical inspections.


Our skills cover the following areas:

Marine services

  • Supervision of marine loading and discharge operations
  • Displacement / deadweight surveys to determine the weight of product loaded / discharged
  • Vessel cleanliness inspections prior to loading


Sampling and weight control

  • Sampling for quality, moisture determination in accordance with national and international standards, or other mutually agreed methods
  • Weight control can be undertaken by draft survey, static scale or belt scale. Our inspectors review all weighing procedures and ensure weight determination is undertaken using the most accurate methods available


Stockpile Inventory services

  • Inventory control using aerial photography for large uncovered piles, and conventional land survey for covered piles
  • Volumetric determinations using the latest software, and density are combined to produce tonnage
  • Stockpile inventory can be supplemented with sampling for proximate or ultimate analysis