The contract, one of the largest of its kind awarded in the country this year, involves widening a stretch of the Panamerican highway and operating and maintaining it.
Panama Canal Authority officials met with lawmakers from the public infrastructure commission to explore projects being managed by the authority, among them the Corozal port initiative.
The country would take part in the initiative with a rail line between the city of Carmelo Peralta and the Bolivian town of Robore.
Authorities are seeking a contractor to modernize all 23 stations of the Belgrano Norte railway.
The Mexican state earmarks more than US$52mn of the total for under-construction line No. 3 of capital Monterrey's metro system.
President Horacio Cartes cuts ribbon on new facility at INC's Villeta plant, which is expected to drive down costs.
The two new allocations made to the ministry's budget are for a combined total of US$88.9mn.