Local firm CKC said a connection with the Rancagua-Santiago train service is being considered.
Bolivia is studying financial proposals from both Switzerland-Austria and Spain for its share of the megaproject.
The concessionaire will have to demolish existing installations used for grain storage and build a docking area, a container yard, a parking area for trucks and a refrigeration area.
The head of the country's infrastructure agency said most projects in the program are awaiting the receipt of funds despite having closed financing.
The loans were paid off with the proceeds of the bonds that were issued to finance the airport construction.
The project in the southern Brazilian state will cost around US$11mn.