In fact, all cities hosting Olympic events will do the same. The Shanghai Foreign Economic Relations and Trade Commission said it will postpone approval of notification letters needed for business visas until mid-September for all but essential travel, ruling out visits for market research, training or to carry out inspections. Some, albeit limited leeway exists. Foreigners can apply for business visas for "urgent" matters but the Chinese counterpart inviting them will need to give detailed supporting documentation.



More information and the full text here http://www.nextstepshanghai.com/blog/?p=98