Our Products
Coltan
Columbite-Tantalite — 30–65% Ta₂O₅
The Technology Metal Powering the Digital World
Coltan — short for columbite-tantalite — is one of the world's most strategically critical technology minerals. It is the primary ore from which tantalum is extracted, and tantalum is essential for manufacturing the miniaturised capacitors found in virtually every smartphone, laptop, tablet and digital device on the planet.
Zambia's geological formations host significant coltan deposits that are structurally distinct from the conflict-affected regions of Central Africa. Somika Commodities Limited is committed to supplying fully certified, conflict-free Zambian coltan to international buyers who require rigorous supply chain transparency and OECD due diligence compliance.
The global coltan market faces persistent supply chain integrity challenges — and Somika Commodities Limited addresses this with a fully transparent, documented supply chain from mine site to export port. We provide SEC Section 1502 Conflict Minerals compliance documentation, OECD due diligence reports and independent third-party audits.
Our coltan is supplied to tantalum processors, semiconductor manufacturers, aerospace component producers and specialty chemical companies worldwide.
Product Specifications
| Product | Coltan Concentrate |
| Content | 30–65% Ta₂O₅ |
| Nb₂O₅ | Varies by grade |
| Form | Concentrate |
| Origin | Zambia |
| Compliance | OECD / SEC 1502 |
| Certification | Conflict-Free |
Request Pricing
Get certified conflict-free coltan pricing and compliance documentation.
Contact Trading DeskKey Applications
- Smartphone & PC Capacitors
- Aerospace Components
- Semiconductor Manufacturing
- Medical Implants
- High-Temperature Superalloys