Baiyin

Baiyin is one of the few cities whose origin story is written into its name: it was built for metal, and it is still learning what comes after the mine. The city has about 328,300 residents, sits 1,723 metres above sea level, and lies on the upper Yellow River in central Gansu. Officially, Baiyin is still remembered as China's "Copper City," a classic resource-based industrial base. The deeper story is that Baiyin's current strategy is not to escape metals, but to climb higher up the value chain before depletion turns into urban senescence.

Baiyin's own official history says the city was founded because of the mine and the enterprise around it. Local reporting on its industrial transition says 2024 industrial output passed more than CNY100 billion ($13.8 billion), while the city has built 12 key industrial chains and 42 subchains around nonferrous metals, new materials, chemicals, and equipment manufacturing. A new 200,000-tonne high-conductivity materials project captures the logic. Baiyin is trying to move from ore and basic smelting into copper rods, cables, and strategic materials that fit electric grids, electronics, and newer energy systems.

That matters because resource cities usually die by staying too loyal to their first metabolism. Baiyin is using the opposite playbook. It is reallocating capital, industrial land, and technical skill toward products that still depend on its metallurgical inheritance but generate more value per tonne. The mine made the city. The challenge now is to make the mine's descendants more important than the mine itself.

This is path dependence under active niche construction, reinforced by resource allocation. Baiyin cannot pretend its mining past never happened, so it is rebuilding industrial habitat around the capabilities that past created. The biological parallel is the earthworm. Earthworms do not erase dead material; they digest it into a richer substrate that supports new growth. Baiyin is trying to do the same with a copper boomtown's exhausted legacy.