General Motors M5: Silao Plant Expansion Project
general motors m5 silao

The firm General Motors de México S.A. de C.V., is the Mexican automotive branch of the American company General Motors with almost 90 years of presence in Mexico.

Project Specifications

Currently, in our country, there are 4 automotive production plants located in Toluca (Estado de México), Ramos Arizpe (Coahuila), San Luis Potosí (S.L.P.), and Silao (Guanajuato).

Hermosillo has worked, in partnership with Barton Malow International, on the construction of 4 projects for General Motors:

  • DDCT Expansion – San Luis Potosí Complex (2012)
  • GFX Expansion – San Luis Potosí Complex (2014)
  • M5 Productivity Improvement – Silao Complex (2015)
  • GEM – San Luis Potosí Complex (2017)

Solutions and development

In 2015 and 2016 we executed the M5 Productivity Improvement project in Silao, Guanajuato. The scope of this project was the construction of the main substation, high-voltage line, stamping warehouse, body shop, and CUC. CMM, Conveyor, infrastructure, and the support-service building for collaborators that included offices and a cafeteria. The goal was to increase the vehicle’s production at the plant.

Special production pits were built in the stamping facility to support the stamping machines. The foundation slab was 1.20 meters thick in an area of approximately 2,500 m2. The walls were 7 meters high and 60 centimeters thick. The pit cap slab had variable thicknesses with different metallic embeddings. Both, the bases of the stamping machinery and the embedded ones were built under special requirements, and precision topography was used to meet the tolerances specified in the project. 

With more than 150,000 m2 (1,614,000 SF) of surface, the project was built under a LEAN Construction methodology, for the optimization of resources and having zero waste. On the other hand, our construction team was recognized by General Motors for completing 1,000,000 work hours without accidents. This was a great achievement for us, as it demonstrates the success of our “zero tolerance for incidents” program, one that guarantees the safety and protection of all employees and subcontractors.


We are proud of having worked with outstanding teams from Barton Malow, and General Motors, to run these projects smoothly. Our priority will always be to seek a cordial, transparent, win-win, and long-term relationship between all parties involved.

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