Traga Nexus Ltd

From African Earth to Global Vault

A four-stage, fully documented process — engineered for trust.

Stage 1

Mining

Artisanal & small-scale African sourcing

Our supply begins in licensed artisanal and small-scale mining (ASM) zones across the DRC, Kenya and Tanzania. We work exclusively with cooperatives that hold valid mining permits, allowing us to verify chain of custody from the very first gram extracted. Miners use traditional methods — sluicing, panning, hand-crushing — supplemented in some sites by semi-mechanised crushers and ball mills.

Licensed cooperative miners only
Site visits & documented chain of custody
Fair, transparent prices paid at source
No conflict-zone or unverifiable material

Stage 2

Refining

Removing impurities to lift purity

Once received at our processing facility, raw gold is cleaned and refined to remove base metals such as copper, iron and silver. We use chemical and pyrometallurgical methods consistent with international best practice. Refining raises typical purity from the 88–94% range of raw material into the 96–99%+ range required for export-grade dore.

Pyrometallurgical & chemical refining
Recovery of silver byproducts where present
Safe handling — no mercury-based amalgamation

Stage 3

Assaying

Independent lab verification

Before any consignment leaves our facility, samples are sent to independent assay laboratories for verification. Fire assay remains the gold standard for fineness determination, complemented by XRF analysis for fast field checks. Every bar and pouch ships with an assay certificate that states verified weight and fineness in parts per thousand.

Fire assay (the international gold-standard test)
XRF cross-checks for rapid verification
Independent third-party laboratories
Assay certificates supplied with every order

Stage 4

Smelting

Cast, stamped & ready for export

Verified gold is melted in an induction furnace and cast into dore bars of standard weights. Each bar is stamped with a unique serial number, our refiner mark, weight and fineness. Bars are then vacuum-sealed and packed alongside their export documentation for secure onward shipment.

Induction-furnace smelting
Serial-numbered, stamped dore bars
Vacuum-sealed packaging for shipment
Final QC inspection before dispatch

Quality Assurance

Verified. Twice.

Every consignment is tested at our facility and again by an independent laboratory before shipment. Buyers receive original assay certificates and may request additional independent verification at destination at their cost — we welcome it.