“Southern Congo sits atop an estimated 3.4 million metric tons of cobalt, almost half the world’s known supply. In recent decades, hundreds of thousands of Congolese have moved to the formerly remote area. Kolwezi now has more than half a million residents. Many Congolese have taken jobs at industrial mines in the region; others have become “artisanal diggers,” or creuseurs. Some creuseurs secure permits to work freelance at officially licensed pits, but many more sneak onto the sites at night or dig their own holes and tunnels, risking cave-ins and other dangers in pursuit of buried treasure.” The New Yorker: The Dark Side of Congo’s Cobalt Rush. “Cell phones and electric cars rely on the mineral, causing a boom in demand. Locals are hunting for this buried treasureā€”but are getting almost none of the profit.”