Mining companies (such as Canadian FirstCobalt) are looking at sites in Idaho, Montana and Alaska in search of cobalt, a key component of lithium ion batteries used in electronic devices and electric cars (consumption of which is expected to rise 8%-10% per year).
The DRC (capital city Kinshasa) is currently the largest producer of cobalt. Australia is the other big producer.
Having new sources of the mineral will diversify cobalt consumers' geopolitical risk. There is currently research (e.g. at UCB) into batteries that do not require large amounts of cobalt (Materials Science and Engineering).
The Cobalt Institute exists to promote sustainable and responsible use of cobalt.