The Chilean operations of BHP, the world's largest mining company by market capitalisation. BHP operates the Escondida copper mine in the Atacama Desert (the world's largest copper mine) and the Spence copper mine in the Antofagasta Region. The in-house legal team in Santiago handles mining concession contracts, environmental compliance under Chile's Ley de Bases del Medio Ambiente, labour relations in mining operations, indigenous community engagement (consulta indigena under ILO Convention 169), and international arbitration.