Transit Visa in Urumqi, 11hrs 35 mins layover

I have a Philippine passport and I'm on a visit visa in Tbilisi, Georgia. Recently, I booked a ticket from China Southern (Tbilisi-Manila) with stops in Urumqi (more than 11hrs) and Guangzhou (more than 8 hrs). I don't have plans of leaving the airport. Do I still need to have a Transit Visa since I'll be flying with 1 airline?