De Pouzilhac has told Havas staff in an email that he intends to stay on and run the company, and that he will endeavour to keep Bollore in check.
He vowed: "I will put all my heart and all my energy into continuing the company's recovery."
De Pouzilhac had been at the forefront of a push to get Havas shareholders to block Bollore's request for four seats on the board of the company, and it had been widely expected that Bollore's victory on Thursday would trigger De Pouzilhac's resignation.
Bollore, Havas' biggest shareholder, hardly gave De Pouzilhac a ringing endorsement after the annual general meeting in Paris, saying that although he hoped he would stay on, Havas would keep going without De Pouzilhac.
"I do not want him to leave, but if he should leave, Havas will continue," Bollore said.
Since then Bollore has sought to allay fears that the company would be broken up and sold off, saying that it was not his intention to do so.
Furthermore, Bollore Investissement has struck a deal with another major Havas shareholder, Sebastian Holdings, which it said would provide long-term stability to allow Havas to develop.
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