Actually its 2400 something, 460 euro's:

EK056

Wed 05 Aug 09

15:25 Düsseldorf International Airport (DUS) 6hr 30min
23:55 Dubai International Airport (DXB)

EK302

Thu 06 Aug 09

02:50 Dubai International Airport (DXB) 8hr 40min
15:30 Pu Dong Airport (PVG)



EK305

Fri 07 Aug 09

07:15 Pu Dong Airport (PVG) 9hr 20min
12:35 Dubai International Airport (DXB)

EK055

Thu 17 Sep 09

08:40 Dubai International Airport (DXB) 7hr 5min
13:45 Düsseldorf International Airport (DUS)

You need to play a little with the multi city option, what also works is DUS > PVG on for example the 5th of August, return to DXB on the 29th of August and return to DUS on the 30th.

As far as I can see it it works for August & September, just make sure you book at least one stopover in either DXB or PVG. Works for PEK aswell.

Not good for same day return, but if you need to be in china or the UAE for business/tourism anyway, its a good deal