KEY POINTS
  • Renault-Nissan executives planned secret Carlos Ghosn payout in 2010.
  • Ghosn is still in custody In Japan over separate allegations related to his pay.
  • Renault has cited the arrest of Carlos Ghosn in Tokyo last month as a "significant risk" to the car makers' partnership.
Nissan's former chairman Carlos Ghosn.

Senior executives at Renault-Nissan worked on a plan as far back as 2010 to pay Chairman Carlos Ghosn part of his salary without having to publicly disclose the amount, according to an email seen by CNBC.

In the text, Ghosn's alleged accomplice and former Nissan Director Greg Kelly asked Renault's then general secretary, Mouna Sepehri, to weigh up the legal risks of such an action. Sepehri is now executive vice president at Renault and a permanent member of the Renault-Nissan Alliance Board.