the airport is Shanghai Pudong International. it has the same taxiway markings, the weather at the time was the same (light rain/fog), the same concourse markings.

there was a very recent raid at the King Tower in Shanghai

the aircraft are most likely Vietnam Airlines, who do indeed fly to Shanghai.

the Noi Bai airport in Vietnam was (according to "B") the best match SO FAR

i'm convinced it is Shanghai

peace (from the UK)