Calidus Resources Limited engages in the exploration and exploitation of gold minerals in Australia. It holds interests in the Warrawoona gold project covering an area of approximately 780 square kilometers located in the East Pilbara district of the Pilbara Goldfield in Western Australia; and the Blue Spec project situated in the Pilbara Goldfield in Western Australia. Calidus Resources Limited was incorporated in 1986 and is headquartered in West Perth, Australia.