The powerful forward has been strongly linked with Chelsea, but the Portuguese club's supremo says that the Blues have not come knocking
The Brazil international's future at the Estadio do Dragao has been a fervent source of conjecture in recent weeks, with the 25-year-old non-committal over where he will ply his trade next season.
Chelsea are understood to be tracking the powerful forward, but the Porto supremo has underlined that he has yet to hear from the Champions League holders.
"According to the newspapers, Hulk would be long gone now, but what I can guarantee today is that Porto have not yet received any offers for him," Da Costa told Antena 1.
Hulk, who arrived at Porto in 2008, has a €100 million buy-out clause attached to his contract with the Portuguese champions, which expires in 2016.