Moderator, El Al and Marriott Bonvoy, FlyerTalk Evangelist
Join Date: Feb 2005
Location: SIN
Programs: SQ*G, Mar LTT, Hyatt Glb, AA LTG, LY, HH, IC, BA, DL, UA SLV
Posts: 12,018
I think this would be confusing. MFM and HKG are special zones with different visa requirements, currencies, etc. Guandong is part of the same currency, visa, etc zone as PVG and PEK.