Quality Assurance
Quality You Can Trust
Every lot we ship is independently sampled, tested and certified - so what arrives at your plant is exactly what you contracted.
Testing Process
Independent by Design
Quality disputes destroy trading relationships. That is why CriticalOre's quality system is built around independence: our own XRF screening is always confirmed by an accredited third-party laboratory before a Certificate of Analysis is issued.
Buyers receive the full analytical picture - grade, impurities, moisture and, where relevant, radiological data - before the vessel sails. Sealed umpire samples are retained for every lot, and umpire analysis terms are standard in our contracts.
Sampling Process
Representative Every Time
- 1Incremental sampling across the full lot per ISO / JIS standards
- 2Mechanical division to laboratory sample size
- 3Three-way split: buyer sample, seller sample, sealed umpire sample
- 4Chain-of-custody documentation from pile to laboratory
Laboratory Testing
What We Test on Every Lot
XRF Analysis
Rapid X-ray fluorescence screening for elemental profile at origin - every incoming lot.
ICP-MS / ICP-OES
Independent laboratory confirmation of grade and trace elements, down to ppm levels.
Moisture Determination
Certified moisture content per lot - critical for weight settlement and safe carriage (TML).
Particle Size Analysis
Sieve and PSD analysis matched to buyer processing requirements.
Radiation Screening
Gamma spectrometry and activity concentration testing for NORM materials like monazite.
Certification
Documents That Travel With Your Cargo
Standard document set for every shipment - additional certifications on request.
SGS Inspection
Tested & Verified
Independent third-party inspection, sampling and analysis by SGS or equivalent international surveyors at load port.
Certificate of Analysis (COA)
Per-Lot Assay
Laboratory assay certificate detailing elemental composition, moisture and grade for every shipped lot.
MSDS / SDS
Safety Data
Material Safety Data Sheet covering handling, storage, transport classification and emergency measures.
Certificate of Origin
Verified Provenance
Chamber-of-commerce certified origin documentation, supporting customs clearance and preferential tariffs.
Packing List
Shipment Detail
Itemized packing list with bag/drum counts, gross and net weights, seal and container numbers.
Commercial Invoice
Trade Document
Commercial invoice aligned with contract terms, incoterms and letter-of-credit requirements.
Quality Workflow
From Lot to Loaded Container
- 1
Lot Formation
Material staged and homogenized at origin
- 2
Sampling
Representative increments per international standards
- 3
Lab Analysis
XRF screen + independent ICP confirmation
- 4
COA Issued
Certificate of Analysis released to buyer
- 5
Inspection
Optional SGS / third-party witness
- 6
Sealed & Shipped
Container sealed with retained umpire samples
Download a Sample COA
See exactly what documentation you will receive with every shipment.
Ready to Source High-Quality Critical Minerals?
Contact our team today for a competitive quote and reliable supply solutions.