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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.

30–65%
Ta₂O₅ Content
OECD
Due Diligence
CFM
Conflict Free

Product Specifications

ProductColtan Concentrate
Content30–65% Ta₂O₅
Nb₂O₅Varies by grade
FormConcentrate
OriginZambia
ComplianceOECD / SEC 1502
CertificationConflict-Free

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Key Applications

  • Smartphone & PC Capacitors
  • Aerospace Components
  • Semiconductor Manufacturing
  • Medical Implants
  • High-Temperature Superalloys