RareX Limited explores for and develops mineral properties in Australia. The company primarily explores for nickel, cobalt, copper, gold, and rare earths deposits. Its flagship project is the 100% owned Cummins Range Rare Earths project located in the East Kimbley region of Western Australia. The company was formerly known as Sagon Resources Limited and changed its name to RareX Limited in December 2019. RareX Limited was incorporated in 2003 and is based in Subiaco, Australia.