From 2017 to 2019, TMB supervised the construction of Alstom trains for the Lima Metro.
The manufacturing supervision of the rolling stock to boost the fleet on Lima Metro's Line 1 was part of a more global project to expand the infrastructure and rolling stock for Lima Metro Line 1. TMB exclusively supervised the manufacture of the 20 additional trains comprising 6 carriages each. The main tasks can be summarised in three phases:
- Phase 1 Factory inspection and testing
- Phase 2 Inspection and testing in Lima
- Phase 3 Guarantee follow-up
To do this, TMB sent its own staff to the builder's factory and to the Lima Metro facilities.