Sastron supplies gold doré (85–95% Au), tin concentrate (64–68% Sn) and columbite-tantalite (36–47% Nb₂O₅) from Nigeria.
It is a NEPC registered exporter that supplies these three commodities sourced from Nigeria's established mineral-producing regions. All products are subject to in-house quality verification before export. Detailed analysis reports, weight certificates and chain of custody documentation are provided with every shipment.
Gold Doré
Gold doré bars produced from responsibly sourced Nigerian gold, purchased from licensed artisanal miners and cooperatives. Gold is melted in-house using induction furnaces and cast into doré bars — the internationally accepted feedstock form for gold refineries.
Specifications
All specifications subject to batch verification. Independent assay available at buyer request.
Tin concentrate sourced from the Jos Plateau tin belt — one of Nigeria's most commercially significant mineral export streams. The Jos Plateau has been a centre of tin production for over a century.
Specifications
All specifications subject to batch verification. Independent assay available at buyer request.
Columbite-tantalite is the primary ore of niobium (Nb) and a source of tantalum (Ta). Nigeria, and Plateau State in particular, holds significant columbite deposits. Niobium is designated a Critical Raw Material by the European Union and a Critical Mineral by the United States government.
Specifications
All specifications subject to batch verification. Independent assay available at buyer request.
Single initial transaction to evaluate quality, documentation and capability.
Spot Transaction
Individual purchase on agreed terms — no long-term commitment.
Container Programme
Regular containerised shipments on agreed schedule on the time.
Short-Term Agreement
3–12 month supply agreement with agreed schedules and specifications.
Offtake Agreement
Volume commitment over agreed period guaranteed as always.
Strategic Supply Partnership
Multi-commodity, long-term commercial and strategic collaboration.
Pricing referenced to international benchmarks: London Metal Exchange (tin), international gold spot price, prevailing market rates (columbite-tantalite).
Sastron and Company Ltd is a licensed Nigerian precious metals and strategic minerals company supplying Gold Doré, Tin Concentrate and Columbite–Tantalite to international refiners, processors and commodity buyers through transparent documentation and dependable export logistics.
Jos, Plateau State — Headquarters Industrial Layout, Jos South LGA, Plateau State, Nigeria
+234 XXX XXX XXXX
exports@sastron.com.ng
DISCLAIMER
Product specifications, grades and supply volumes are indicative and subject to batch verification, commercial agreement and availability. Sastron and Company Ltd does not engage in the purchase of minerals from unlicensed sources. All transactions are subject to applicable Nigerian laws, internal compliance procedures and commercial agreement.