The new port will transport minerals, food, and other materials. MPX is currently awaiting approval of the Castilla project, a $4.4 billion coal-fired thermal plant to be built in the same region.
However, a ruling by the Chilean Supreme Court in November has delayed the approval of the project over environmental issues concerning soil use.
According to Reuters, MPX says the ruling will not affect construction of the new port.
MPX is controlled by Eike Batista, Brazil's richest man. In November of this year, his company LLX announced expansions to build The Acu Superport, one of the largest ports in the world.