The Palmillas-Apaseo highway, also known as the Querétaro Macrolibramiento bypass, will serve to reduce traffic congestion and benefit activities in Mexico's industrial Bajío region.
JBS chairman Joesley Batista admitted to paying off public officials in Brazil but said the company's international expansion had not included such practices.
The projects outlines by the Neuquén government include development of a cargo terminal at the Neuquén city airport, irrigation works, a trans-Andean railway and a duty-free trade zone.
The tender is to carry out feasibility studies for the project to upgrade and expand La Aurora airport, the capital's main international gateway, which is located in capital Guatemala City.
Lenin Moreno, who will replace President Rafael Correa on May 24, faces major challenges after being accused of electoral fraud during last month's elections.
The president of construction promotion association Grupo Construya said that activity in the sector dropped 12% last year, while this year there is a clear recovery.
The ministers of public works, economy and transport said the US$500mn initiative was strategically important for the development of the country.
The mayor of the Colombian capital announced that the soil studies are the last step necessary to prepare the tender bases. Works are expected to begin next year.
The compensation amount included in the plea bargain proposal has not been disclosed.
Local environmental groups had voiced their concern about the potential health effects that construction of the plant could bring to area residents.