Horizonte Minerals Plc, together with its subsidiaries, engages in the exploration and development of mineral projects in Brazil. The company primarily explores for nickel deposits, as well as cobalt deposits. It holds 100% interest in the Araguaia ferronickel project and Serra do Tapa nickel project located in the State of Para; and the Vermelho Nickel-Cobalt project in the eastern part of the Carajás mining district. Horizonte Minerals Plc was incorporated in 2006 and is headquartered in London, the United Kingdom.