 Today the biggest iron ore deposit in Africa and the third largest in the world, African Minerals Tonkolili Project, are found in the hills around Bumbuna, Mabonto and Bendugu.Agriculture also plays a significant role in the economy, the biggest bio energy company in Africa, Addax Petroleum, operates mostly in Mar in constituency 60.There is also a significant agricultural activity at the Magbass sugar production facility and refinery run by Complant, a Chinese construction engineering firm.