I have several friends living in Hanoi, Vietnam who all bought airplane ticket to go to Shanghai for 5 days (from May 29th to June 2nd) for Expo 2010. All the non-French friends got tourist visas with no problem from the Chinese Embassy in Hanoi, but the Embassy made many demands upon the French (e.g. need a Chinese copy of confirmation of every hotel they will stay in; need a letter translated into Chinese proving they are working in Vietnam; etc..) and would not accept any of their applications. Is there any way they could get a visa on arrival to go to Shanghai? Many thanks for any light you can shed on this problem.