CSG - ELA-4 construction site for Ariane 6

The ELA-4 (French: l'Ensemble de Lancement Ariane 4) launch site is currently undergoing construction and is intended as the future launch site for the Ariane 6 launch vehicle.
Both the launch pad itself and the BAL (Fench: Bâtiment d’Assemblage Lanceur) - the launcher assembly building are being worked on for use with Ariane 6.
Learn more about Ariane 6.