Due to the increase in traffic at the Chilean port due to a strike at Valparaíso, the head of the project said the large scale port will boost rail transport.
The incoming Brazil government will offer the concessions in packages, according to a newspaper.
The French firm is also studying other projects in Chile, which could entail electric buses or other rail links depending on demand.
In her inauguration speech and at a subsequent event, mayor Claudia Sheinbaum outlined a raft of plans and projects.
The country's transport ministry will present its first "macro zonal" rail plan next year, which will focus on the northernmost regions.