Challenger Exploration Limited explores for gold and copper deposits. It owns the rights to earn a 75% interest in the Hualilan gold/silver project in Argentina; and 100% interest in the El Guayabo breccia and porphyry gold/copper project in Ecuador. The company was formerly known as Challenger Energy Limited and changed its name to Challenger Exploration Limited in May 2019. Challenger Exploration Limited is based in Sydney, Australia.