OCZ explains

Some day ago overclockers.com reported OCZ didn’t put silver in their colling paste, which had according to advertising, a very high silver percentage.
Today they published a statement where they explain how it happened. It’s not OCZ themselves that produce the cooling paste, they buy it from another company that appearantly messed up.
Everyone that has bought the OCZ-paste can send the tube to them and they will get a discount on OCZ-memories, an OCZ-tshirt, a Dominator 2 heat sink or new tube of cooling paste that comes from Arctic Silver.