A metal once used primarily as a coloring agent in ceramics is now a sought-after commodity for the U.S. military, which wants to add up to $500 million worth of cobalt to defense stockpiles.

Cobalt is one of the world’s best battery materials, but geopolitically, it’s less than ideal. The world’s largest reserves are in the Democratic Republic of the Congo, where mining has long been ...

There’s been an era-defining race underway between two types of batteries used in electric vehicles: lithium batteries that use cobalt, and ones that use iron phosphate. Cobalt, a metal with a ...

US Defense Department to Buy Cobalt for up to $500 Million (Reuters) -The U.S. is seeking to procure cobalt worth up to $500 million for defense stockpiles amid the country's move to boost its ...