Coltan / Tantalite
Responsible sourcing, origin transparency and lot-based assay documentation for columbite-tantalite concentrates.
Commercial configuration
Applications
Electronic capacitors, superalloys, specialty metallurgy and high-performance applications.
Raw / semi-processed
Hand-selected ore, concentrate and enriched product subject to contract.
MOQ
Commercial lots after sample/trial approval; final MOQ depends on source and assay.
Parameters to define in the RFQ
| Parameter | Typical target / format | Verification |
|---|---|---|
| Ta₂O₅ | Lot dependent; commercial content quoted | XRF/ICP report |
| Nb₂O₅ | Lot dependent | Assay report |
| Sn | Can be reported as associated element | Assay report |
| U / Th | Buyer and transport limits | Radiological checks may apply |
| Origin / chain | Source and route declaration | Responsible sourcing file |
Sampling method, test basis (ADB/ARB/dry basis where relevant), lab method and acceptance tolerances should be stated in the commercial contract.
Lot documentation and shipment file
Producer or agreed laboratory analysis.
Provided when applicable to the product form and regulation.
Certificate of origin / origin declarations as required.
SGS / Intertek or another mutually agreed inspector can be specified in the contract.
Request a Fast RFQ
Share product, target specification, quantity, delivery port and Incoterm. The offer structure can then be matched to the correct source and logistics model.