According to Sky Sport Italia, the versatile and pacey forward has attracted attention from within Serie A and across the Alps.
He had an impressive debut Serie A season, scoring four goals and providing six assists in 38 games, not missing a single match.
Kouamé can play as a centre-forward, on the right or left wing of attack.
That kind of versatility attracted Sassuolo, who play 4-3-3 with Coach Roberto De Zerbi and just sold Kevin-Prince Boateng to Fiorentina.
Lille are also interested, while Kouame had been linked with Bologna and Torino earlier in the summer.