See the PBS press-release to find out that PBS has signed an agreement with China Unionpay (CUP), China’s largest card company. China Unionpay is the issuer of the CUP card, which is found in the pockets of 1.3 billion Chinese, making it the equivalent of Denmark’s Dankort. The agreement means that Danish, Swedish, Norwegian and Icelandic merchants who have entered into an agreement with PBS on the acceptance of international cards will be able to accept the CUP card in future. (..) From the autumn 2007, Chinese cardholders will be able to use their CUP card in over 30,000 shops in Denmark, Sweden, Norway and Iceland that have entered into an agreement with PBS on the acceptance of international cards.
I recall that China Unionpay also had an agreement in the Netherlands with Paysquare, as apart of the move where CUP extends its international network of countries and merchants which accept the CUP card. A logical move given the expected increase of Chinese tourists to Europe.