Independent Mineral Inspection, Sampling & Assay Services
TerraAssay provides independent mineral inspection, representative sampling, laboratory analysis and trade assurance services for mining, processing, export and international commodity transactions.
Precision in Minerals. Confidence in Trade.
Reliable data for high-value mineral decisions.
TerraAssay is an independent mineral inspection and assay services company established to support reliable trade, fair settlement and technical confidence across the minerals and metals supply chain.
We serve mining companies, mineral processors, exporters, buyers, commodity traders, banks, logistics companies and project investors who require accurate sampling, professional inspection and clear laboratory reporting before making commercial decisions.
From mine site to warehouse, port and final delivery, TerraAssay helps reduce uncertainty by providing structured inspection, controlled sampling, sample preparation, assay coordination and technical reporting.
A full chain of independent services for the metals and minerals trade.
Mineral & Metal Assay
Chemical and physical testing support for ores, concentrates and industrial minerals, including grade verification, impurity checks and commercial quality assessment.
Representative Sampling
Controlled sampling procedures for stockpiles, bags, containers, trucks, warehouses and export cargoes to support reliable and traceable analysis.
Sample Preparation
Drying, crushing, splitting, pulverizing and homogenization support to prepare samples for accurate and repeatable laboratory analysis.
Pre-Shipment Inspection
Independent verification of mineral cargo before export, including packaging condition, cargo identity, sampling, weighing supervision and shipment documentation support.
Loading & Discharge Supervision
Inspection and supervision during container loading, warehouse dispatch, port operations and discharge activities to reduce quantity and quality disputes.
Trade Assurance Reporting
Clear inspection and assay reports designed to support commercial contracts, buyer-seller settlement, bank documentation and international mineral trade decisions.
Built for Reliable Mineral Trade
From mine site to processing plant, warehouse, port and final destination, TerraAssay supports mineral transactions with independent field inspection, controlled sampling, laboratory analysis support and clear reporting.
Our objective is to help sellers, buyers, financiers and logistics partners make decisions based on reliable technical evidence.
Inspection & assay across the mineral spectrum.
TerraAssay provides inspection and assay support for a wide range of mineral commodities, with sampling and analytical protocols tuned to each commodity's contract terms.
Five commitments behind every assignment.
Independent approach
We operate with impartial procedures designed to support transparent trade between sellers, buyers and third parties.
Mineral-focused expertise
Our services are designed specifically for ores, concentrates, processed minerals and export cargoes.
Traceable sampling
We emphasize representative sampling, sample identification, chain of custody and controlled sample preparation.
Commercially useful reporting
Our reports are structured to support trade settlement, buyer approval, export documentation and quality verification.
International mindset
TerraAssay is built to serve African mining operations and international mineral buyers with globally understandable documentation.
Building on internationally recognized principles.
TerraAssay is developing its technical systems, documentation procedures and laboratory quality framework in line with internationally recognized testing, inspection and quality management principles.
Our long-term objective is to build a mineral testing and inspection platform aligned with ISO/IEC 17025 laboratory competence principles and international best practices for mineral sampling, preparation, testing and reporting.
Read our quality approach →Need Independent Mineral Inspection, Sampling or Assay Support?
Contact TerraAssay for professional support with mineral testing, cargo inspection, pre-shipment verification, loading supervision and trade assurance reporting.