Hello. I am a UK citizen but I hold an E2 Visa to live and work in South Korea (I currently live in South Korea). I have a flight from Bangkok to Seoul which stops over in Shanghai Pudong Airport, during which time I have to transfer to Shanghai Hongqiao Airport for my flight to Seoul. I will therefore have to leave the Pudong airport to travel to the next airport. It will be a one hour journey. Do I have to get a visa for this?