The tender will take place on November 7.
Reaffirming what he announced in December, AMLO told a press conference that the decision to exclude international investors was a matter of national sovereignty.
Two gas to power projects for a combined 1GW are behind schedule, according to the government.
The standard classifies which materials require special handling, such as construction and drilling waste that is not contaminated by hazardous materials.
The goal was to seek more competitive prices and diversify natural gas supply sources.
The agreement with UK-based TechnipFMC involves the supply of around 12,000t of seamless steel rigid line pipe.
Mapping, rapprochement and sensitization work was carried out for seven months with around 1,000 people, including authorities, fishing associations, grassroots associations, neighborhood councils, tour operators and the general public.