This paper aims at the issues of electronic trading in copyright objects and its impacts and implications for government information. The copyright trading platform for government added-information identifies some specific functions and elements of trading models that have been proposed. New mapping elements of content description, rights description and trading description are being developed whereby rights in digital works can be traded electronically. For government information that are dependent on dissemination and publishing of copyright objects, the developments of protocol and digital object identifier also have substantial implications, which are suggested in this paper. Its purpose is to identify implications for information society in general, and for government information market in particular, on the one hand, to exploit the opportunities of Digital contents and cultural creation industry created by new technologies.