While maintaining his roles at Renault , Ghosn joined Nissan as its chief operating officer ( COO ) in June 1999 , became its president in June 2000 .
While maintaining his roles at Renault , Ghosn was named chief executive officer ( CEO ) in June 2001 .
While maintaining his roles at Renault , Ghosn joined Nissan as its chief operating officer ( COO ) in June 1999 , became its president in June 2000 , and was named chief executive officer ( CEO ) in June 2001 .