In 1981 , he became plant manager in Le Puy - en - Velay , France .
After graduation in 1978 , Ghosn spent 18 years at Michelin , Europe 's largest tire maker , initially training and working in several plants in France and Germany .
In 1981 , Ghosn became plant manager in Le Puy - en - Velay , France .
After graduation in 1978 , Ghosn spent 18 years at Michelin , Europe 's largest tire maker , initially training and working in several plants in France and Germany .