How the U.S. Is Trying to Challenge China's Cobalt Chokehold

Talks over mining company Chemaf in Congo are part of a push by the Biden administration to secure global supplies of a metal used in everything from jet fighters and drones to electric-vehicle batteries.

Talks over mining company Chemaf in Congo are part of a push by the Biden administration to secure global supplies of a metal used in everything from jet fighters and drones to electric-vehicle batteries.