He served as the chief executive officer of Lafarge from 2006 to 2015, when it merged with Holcim to become LafargeHolcim.
[1][2] Lafont joined Lafarge as an auditor in the finance department in 1983,[1][2] He subsequently worked in Germany and Turkey.
[2] Additionally, he cut costs by 60% within the first year, notably by divesting from its roof-manufacturing subsidiary.
[7][8] Lafont serves on the boards of directors of Électricité de France and ArcelorMittal.
[1] He is also the chairman of the Fondation nationale pour l'enseignement de la gestion.