Priced by the Kilogram for a Reason
Every industrial metal on this site — copper, aluminium, zinc, lead, nickel, tin and more — displays its price per kilogram rather than per gram, because that's the scale these markets actually trade at. Nobody buys a gram of copper; a construction project or a cable manufacturer is buying tonnes. That unit difference isn't cosmetic — it reflects a genuinely different kind of buyer than gold or silver see: industrial procurement teams hedging real physical demand, not individual savers or investors.
Copper: The Economy's Own Thermometer
Copper is sometimes called "Dr. Copper" because its price is considered a genuine read on global economic health — it goes into virtually everything being built or electrified: wiring, motors, plumbing, and now EVs and grid infrastructure at a scale traditional combustion-engine cars never needed. When copper demand is strong, it's usually a sign construction and manufacturing are genuinely humming, not just that traders are speculating — which is exactly why economists watch it the way they watch shipping volumes or freight rates.
Aluminium: Cheap Per Kilogram, Energy-Hungry to Make
Aluminium looks inexpensive next to copper, but producing it is one of the most energy-intensive processes in metals — smelting bauxite-derived alumina into metal (the Hall-Héroult process) consumes roughly 13-15 megawatt-hours of electricity per tonne. That means aluminium's price is unusually sensitive to energy costs specifically, not just metal supply and demand — a spike in electricity prices in a major smelting region can move aluminium even when nothing about physical metal availability has changed.
Zinc, Lead, Nickel: The Metals Behind the Metals You See
Zinc's largest single use is galvanizing — coating steel to stop it rusting, which quietly ties its demand to the entire construction and automotive steel supply chain rather than to zinc itself being visible anywhere. Lead is dominated by one unglamorous but massive use: lead-acid batteries, still the standard for vehicle starter batteries worldwide despite the EV shift in the rest of the car. Nickel splits between traditional stainless steel demand and the newer, fast-growing pull from EV battery cathodes — which is why nickel news increasingly reads like battery-supply-chain news rather than classic industrial-metals news.
