Klopp has been linked with a move to Stamford Bridge.
Zorc told the London Evening Standard: “It is not worth Chelsea ringing us. There is no chance at all, at least until 2016.
“Even if they offered compensation the answer would still be no. Even though we are not a bank with too much money, we don’t need it. That’s our situation. He’s priceless. We are committed to each other — we gave our word.
“He won’t stop his work here just because Chelsea offer him a lot of money — that is not the way he thinks.
“Before he was at Dortmund, he was at Mainz for seven years. It is not the most attractive club in the world but he stuck to it because he has a long-term view and likes to develop and create an era.”