I would never attempt to fly the OPs routing & ticket.
I would get a 10 year CN visa for the peace of mind.
If I were going to attempt TVOV and wanted to use the indicated flights, I would be sure to book outbound as a one-way and return on a seperate ticket. Would then eticket a refundable J ticket PVG-SIN on SQ and use this ticket for LAX checkin as proof of eligibility for TWOV. Once in CN, cancel SQ tix for refund and fly AA home.
Last edited by Colin; Apr 17, 2017 at 10:33 pm