The US Has More Copper Than China But No Way to Refine All of It

The US Has More Copper Than China But No Way to Refine All of It
Freeport-McMoRan Inc.’s only US copper smelter—a hulking metal-processing facility at the edge of an old Arizona mining town—spits neon flames from its furnace like an industrial volcano. Here, hundreds of employees work around the clock to transform vats of concentrated molten metal into neat, purified slabs, which are then shipped to a refinery in El Paso, Texas, the next step... ...

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