Thiaw is currently on his way to Tyneside, where he will undergo a medical examination before finalizing the transfer from Milan.
In a recent interview with Sky Italia, Thiaw expressed his happiness with the choice of joining Newcastle and his readiness to play in the Premier League.
Newcastle manager Eddie Howe has been working behind the scenes to take the club forward, including plans for the stadium and training ground.
However, Howe also acknowledged that transfer decisions can be a slow process, taking time to finalize.