OW timetable says PEK-HKG is CX.

I'd also mention my positive experience in dealing with BA directly in Istanbul, recorded here: http://www.flyertalk.com/forum/showthread.php?t=390790. Not terribly expensive to get to from London, not in the "middle east" so you can still do the DXB runs etc., and quite nice people, who returned the right price on xONExs quickly. NB I said directly, not through BA's RTW desk in N. America.