Alpha HPA Ltd, formerly Collerina Cobalt Limited is engaged in delivering High Purity Alumina (HPA). The Company has interests in exploration projects in Indonesia and Australia. The Company operates in two geographical segments, which include minerals exploration in Indonesia. Its focus is on cobalt, nickel copper and gold projects. The Company holds interest in the Wonogiri project, which covers an area of approximately 3,928 hectares and is located in central Java. The Company's Gorontalo Properties consists of four copper and gold tenements located in northern Sulawesi, which include Tapadaa, Toluludu, Biyonga and Tahele. The Company's Collerina project is located approximately 40 kilometers south of Nyngan in central New South Wales, covering an area of approximately 150 square kilometers within the Fifield Platinum Province. The tenement contains the Homeville nickel-cobalt deposit.