I'm going to Shanghai for seightseeing. I'm staying 7 days, and after that I'm going to Taiwan. I'm staying there 4 days. After that I'm going back to Shanghai, because my flight back to Brazil departs from there. Do I need another visa?? My visa is just for a single entry.
My flight back to Shangai arrives at 3PM and I'm leaving in the day after at 4PM.