The raw materials are transported by barge to Alunorte in Barcarena. Hydro holds a 5 percent share of MRN, in addition to a 40 percent offtake agreement. MRN began extracting bauxite in 1979.
Mineração Rio do Norte
The mining company Mineração Rio do Norte (MRN) in Trombetas has annual production capacity of 18 million metric tons of bauxite and has nearly 1,300 permanent employees