PSG president Nasser Al-Khelaifi insists Kylian Mbappe will not be sold and will not be leaving on a free.
The French star is being linked with a Paris exit as his contract at the Parc des Princes winds down.
Mbappe will soon enter the final 12 months of his deal and the Ligue 1 giants are looking to tie him down to fresh terms.
“I will be very clear: Kylian Mbappé is going to stay at PSG,” he told L’Equipe .
“We will never sell him, and he will never leave for free.”
PSG were handed a boost in recent months when Neymar signed an extended deal.
The Brazilian has long been linked with a return to Spain having left Barcelona for a world record fee back in 2017.
He and Mbappe moved to the Parc des Princes in the same summer and have helped PSG continue their dominance, although the Champions League still eludes them.
Al-Khelaifi remains confident that Mbappe is committed to the club’s vision and is pleased with how negotiations are going.
He added: “It was not difficult to reach an agreement with Neymar. It only took so long because of the health crisis. I never had doubts.
“All I can say is that things are going well [with Mbappe]. I hope we can reach an agreement. This is Paris, this is his country.
“He has a mission, not only to be a footballer, but to promote Ligue 1, his country and its capital.”
Mbappe, who has scored 42 times for PSG in his four seasons, said earlier this season that he was taking his time over his decision.
“I am very happy here. I have always been very happy,” he said. “The supporters and the club have always helped me and for that alone I will always be grateful.
“But I want to think about what I want to do in the coming years, where I want to be. That’s what I am reflecting on.”