Despite the 23-year old being in negotiations with the Rossoneri, the reigning Ligue 1 champions have made it clear that their star man will not leave cheaply
The Brazilian centre-back became the second most expensive defender in history when he joined Paris Saint-Germain earlier in July, and Nicollin wants the Rossoneri to cough up the same amount for the Frenchman, even though his contract expires at the end of the current campaign.
And when asked if la Paillade would indirectly receive some of the capital club's money, Nicollin was resolute.
"I don't care about PSG's money. [Milan] have to give us the same sum PSG gave them for Thiago Silva. Yanga-Mbiwa won leave. That's clear," he told France Football.
"There are advanced negotiations between the player and Milan, but for any sale I must agree to it. And since I do not agree, nothing will happen. He will remain here.
"I'm not chasing a player to replace him, so he will stay here for another year, even if it takes him to the end of his contract."
Yanga-Mbiwa was one of the key figures in Montpellier's successful assault on Ligue 1 last season, and it now looks likely that he will line up for the club again when they kick off their new campaign against Toulouse on August 10.