Explore the gold mining supply chain, from extraction to end use, and understand the importance of traceability and responsible sourcing in the gold trade.
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This article is part of our complete guide to Gold Mining & Extraction. Explore the full series for everything from the extraction process to the future of mining in Africa.
Gold's journey from the ground to a finished product — jewelry, a bar in a vault, or an electronic component — passes through many hands. Understanding this supply chain matters not just for industry professionals, but for anyone who wants to know where their gold actually comes from.
The chain begins at the mine site, whether an industrial operation or an artisanal, small-scale one. This is where raw gold-bearing ore is extracted, following the extraction process covered in detail in our step-by-step extraction guide.
Extracted ore is processed on-site or at nearby facilities to separate gold from surrounding material, producing raw gold or doré — a semi-pure gold-silver alloy still requiring further refining.
Raw gold and doré often pass through local traders and aggregators, particularly in regions with significant artisanal and small-scale mining. This stage is critical for traceability: it's where informal, small-batch gold gets consolidated and, ideally, documented before entering formal trade channels.
Refiners process raw gold and doré into high-purity gold — typically 99.5% or higher — through smelting and chemical refining. This is also where formal certification and assaying take place, establishing verified purity levels.
Refined gold moves into international markets through export processes governed by customs regulations, trade agreements, and compliance requirements — including anti-money laundering standards designed to prevent illicitly sourced gold from entering legitimate markets.
From here, gold splits into its various end markets: investment (bars, coins, bullion), jewelry manufacturing, electronics, and industrial applications — each with its own quality and certification requirements.
The further gold travels from its point of extraction without clear documentation, the harder it becomes to verify its origin and the conditions under which it was mined. This is exactly why responsible sourcing has become such a central issue in the gold trade — buyers increasingly want to know not just that gold is pure, but that its supply chain reflects ethical, transparent practices from mine to market.
At Serengeti Gold Online, we work to shorten and clarify this chain wherever possible — sourcing directly from mining partners across East Africa and maintaining documentation and quality control at every stage, so buyers get both transparency and confidence in what they're purchasing.
Continue exploring the series: see how this connects to the extraction stage in The Gold Extraction Process (Step-by-Step), or explore the regional angle in our guide to East Africa's Gold and Global Supply Chains. Return to the Gold Mining & Extraction hub for the complete guide.
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