Metal starts as rock that no one has found yet. Exploration and drilling turn it into a known deposit. The deposit is then financed, built, equipped and mined, and its concentrate is smelted and refined into metal.

Each stage is handled by its own industry, with its own listed companies. The section below explains what each step does, with a recent example from each.

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What Each Step Does

Find. Exploration starts with drilling. Contractors bring up rock samples so geologists can test what is in the ground and how much of it there is. Major Drilling, whose principal source of revenue is contract drilling, reported more rigs in the field in the quarter ended July 31, citing demand from senior miners and juniors.

Fund. A mine needs money long before it sells any metal. Royalty and streaming companies provide part of it, in return for a share of the mine's future output or revenue. In one recent deal, Triple Flag agreed to provide US$440 million for a share of the Ravenswood mine's gold, and the release states the money will be used for debt reduction.

Build. Engineering firms turn a deposit into a working mine. They carry out the studies, design the processing plant and manage construction. Fluor said on November 6 that it had won two copper mining projects in Chile.

Equip. Equipment makers supply the drill rigs, loaders and trucks that move the rock, and keep them running with parts, service and upgrades. Epiroc said mining customers made up 83% of its orders in the third quarter, and that service growth was driven by mid-life upgrades of machines already in use.

Mine. Miners dig the ore, then crush and process it, usually into a concentrate. Output depends on ore grade, maintenance and conditions at the site. BHP said on October 20 that its copper production was lower in the quarter, citing planned grade declines, scheduled maintenance and severe weather in Chile.

Refine. Smelters and refiners turn concentrate into pure metal, and miners pay them a fee per ton for the work. The 2026 benchmark fee for copper concentrate was set at $0 per ton, down from $21.25, Reuters reported. For zinc, Korea Zinc's fee for smelting Teck's concentrate was $85 a ton in 2026, Bloomberg reported.

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Where the Steps Overlap

The six steps are not always run by separate companies. Boliden, one of the Refine examples, lists seven mines alongside five smelters on its operations page, so it covers both the Mine and Refine steps.

The 30 companies in the graphic are a selection. Each step includes many other listed and private firms, and the order within each row does not reflect size or importance.