Twenty Seven Co. Limited explores for uranium, base metals, and other minerals in South Australia. It owns a 100% interests in the Muckanippie project, the Whymlet project, the Sheoak Hill project, and the Lock project in Gawler Craton and Eyre Peninsula. The company was formerly known as UraniumSA Limited and changed its name to Twenty Seven Co. Limited in July 2018. Twenty Seven Co. Limited was incorporated in 2006 and is based in Adelaide, Australia.