Koumas insists he wants to stay at the Hawthorns and help Albion make a quick return to the Premiership.
He said: "Regarding the speculation surrounding me, all I can say is that I'm not looking to leave as I am under contract.
"If another club comes in for me and Albion decide to sell me, then there is nothing that I can do about that.
"Of course, I want to play in the Premiership again after getting a taste of it. But I'll be doing it by getting Albion promoted if I can. We want to bounce straight back from Division One."