Martifer Metallic Constructions is responsible for the supply, manufacture and assembly of around 1,300 tons of metallic structure for the stadium's south rostrum and for the east and west corners. With this intervention, the south tribune will seat 8 000 fans instead of the current 3 500.

This is a remodeling and expansion project for the Saint-Symphorien stadium that will globally increase the stadium's capacity by 4 440 seats: from 25,600 to 30,000 seats.