Every Chain Has the Same Skeleton
Copper, lithium and neodymium look nothing alike chemically. Their supply chains have identical structure — six stages, and only which one is hard differs.
Ore to Vehicle · Part 1 — The Template · Chapter 1 · 17 min read
Part 1 — The Template
One verb, performed at different scales
Copper, lithium and neodymium look nothing alike chemically. Their supply chains have identical structure.
Every material in an electric car starts as rock at a few parts per million and ends as a metal at four nines. A copper mine moves about 500 tonnes of rock to deliver one tonne of metal. A lithium brine operation evaporates water for eighteen months. A rare earth plant runs hundreds of solvent-extraction stages to tell apart two elements that differ in ionic radius by one per cent.
The whole industry is one verb — concentrate — performed at different scales and with different chemistry.
6
Stages in every chain
500 t
Rock per tonne of copper
0.5 → 99.99 %
Copper’s climb, in six operations
~75 %
Of silver produced by mines not seeking it
1.1 — The grade ladder
Silver starts eight orders of magnitude below copper and finishes at the same purity. The distance travelled is the industry.
1.2 — The six stages
What differs between materials is only which stage is hard. For copper it is stage 1, because grades are falling. For lithium it is stage 3, because conversion chemistry is fiddly and slow. For rare earths it is stage 4, because separating chemically identical elements takes a plant the size of a refinery. For graphite it is stage 5, because rounding a flake wastes two-thirds of it.
1.3 — The vocabulary that makes any chain readable
| Term | What it means, and why it matters |
|---|---|
| Ore grade | The mass fraction of the target metal in the rock as mined. Copper porphyry is 0.3–1.0 % Cu; spodumene is 1–2 % Li₂O, which is only 0.5–0.9 % lithium. Grade sets everything downstream — how much rock you move, how much energy you spend, how much waste you generate. |
| Cut-off grade | The grade below which processing a tonne costs more than the metal in it is worth. It moves with metal price, so a mine’s reserves change when the price changes without a single new discovery. |
| Strip ratio | Tonnes of waste rock removed per tonne of ore. An open-pit copper mine runs 2:1 to 5:1. Combined with grade, this is where the 500-tonnes figure comes from. |
| Recovery | The percentage of contained metal that survives a stage. Flotation recovers 85–92 % of copper; spheroidisation of graphite recovers 30–40 %. Losses compound multiplicatively down the chain. |
| Concentrate | The upgraded mineral product a mine ships — not metal. Copper concentrate is 25–30 % Cu; the other 70 % is iron, sulfur and rock the smelter must deal with. This is what moves in bulk carriers and what is actually traded. |
| Midstream | Everything between the mine and the component: smelting, refining, chemical conversion, precursor and material manufacture. This is where concentration of control actually sits, and it is the least visible part of the chain. |
1.4 — Byproduct versus primary
Whether a metal is the reason the mine exists, or something recovered alongside. Cobalt is a byproduct of copper and nickel. Most silver is a byproduct of lead, zinc, copper and gold.
In plain English
A byproduct’s supply does not respond to its own price. If the silver price doubles, a lead-zinc mine does not mine more, because its economics are set by lead and zinc. That breaks the normal assumption that high prices bring new supply, and it means demand shocks resolve through price and inventory rather than through new production.
1.5 — Mining is distributed; the midstream is not
Important
The single most useful idea in this series. Countries argue about mines because mines are visible, big and politically legible. But the leverage sits two stages later, in refineries and chemical plants that nobody photographs.
Technical framing
That pattern repeats for every material here without exception: copper mined in Chile and refined in China, lithium mined in Australia and converted in China, graphite mined anywhere and made into anode almost exclusively in China. Chapter 11 plots it, and every material sits above the diagonal.
Quick check: test yourself
1.A mine announces its reserves have grown 20 per cent with no new drilling. How?
Show answer
2.Why does a copper mine ship concentrate rather than copper?
Show answer
3.Cobalt prices triple. What happens to cobalt supply?
Show answer
Chapter summary
- ✓Every chain in this series is the same operation — concentration — repeated until the material is pure enough to use.
- ✓Six stages: extract, concentrate, convert, refine, material, assemble. Value per tonne rises at each step and tonnage falls.
- ✓What differs between materials is only which stage is hard: mining for copper, conversion for lithium, separation for rare earths, spheroidisation for graphite.
- ✓Byproduct metals have price-inelastic supply, which breaks the normal assumption that high prices bring new production.
- ✓Mining is distributed and the midstream is not. The leverage sits two stages after the mine, which is the finding that repeats for every material.
Frequently asked questions
What are the six stages every material supply chain follows?+
Extract — move rock at 0.1 to 2 per cent target content. Concentrate — physical separation to 20 to 60 per cent. Convert — smelt or leach to 60 to 99 per cent. Refine — electrolytic or solvent methods to 99.9 to 99.99 per cent. Material — compound and shape to battery or magnet grade. Assemble — cell, motor, vehicle. Value per tonne rises at every step and tonnage handled falls at every step. Recycling re-enters at stage 2 or 3, at a far higher grade than any ore.
What is the difference between ore grade and cut-off grade?+
Ore grade is the mass fraction of the target metal in the rock as mined — copper porphyry runs 0.3 to 1.0 per cent, spodumene 1 to 2 per cent Li₂O which is only 0.5 to 0.9 per cent lithium. Cut-off grade is the grade below which processing a tonne costs more than the metal in it is worth. Because cut-off moves with metal price, a mine’s reserves change when the price changes without a single new discovery.
Why does byproduct status break normal commodity economics?+
Because a byproduct’s supply does not respond to its own price. Cobalt is a byproduct of copper and nickel; roughly three-quarters of silver comes from mines looking for lead, zinc, copper or gold. If the silver price doubles, a lead-zinc mine does not mine more, because its economics are set by lead and zinc. Demand shocks therefore resolve through price and inventory rather than through new production — the opposite of how commodity markets are usually taught.
Why does the midstream matter more than mining?+
Because mining is distributed and the midstream is not. Countries argue about mines because mines are visible, big and politically legible, but the leverage sits two stages later in refineries and chemical plants that nobody photographs. That pattern repeats for every material in this series: copper mined in Chile and refined in China, lithium mined in Australia and converted in China, graphite mined anywhere and made into anode almost exclusively in China.
Reviewed by
Ore to Vehicle is an original educational series on the battery and EV materials supply chain. Country shares, grades, prices and policy status are approximate, drawn from public reporting as of mid-2026, and move year to year — treat them as orders of magnitude rather than as a ledger, and verify before relying on them commercially.