China makes more than half the world's steel.

Share of world crude steel production, 1990 to 2026. China (bottom) still makes more than half, though its share is easing off the 2020 peak as India, now the clear number two, keeps rising.
- Decades of building cities, railways and factories created vast domestic demand, and the mills were built to match it.
- State support kept capacity expanding even when prices fell, so output held high while rivals elsewhere shut furnaces.
- Cheap energy and a complete supply chain, from iron ore handling to finished product, made Chinese steel hard to undercut.
The metal backbone of every building, car and bridge is made in one country. Industrial power now has a single postcode, and that is leverage in any trade fight.