My friendly advice is don't load up until after the 1H announcement on 8/30.
Your 5% dividend expectation isn't something to gloat about. 1H08 earning was warned to be down more than 50%. I'll consider that positive news if it is only down 50%.
BTW 2H07 2600.hk dividend went down to 5.3 cents RMB from 2H06 11.5 cents, and 1H07 15 cents. You'll be lucky to get 4 cents 1H08.
Y08 yield is more likely to be something close to 2% or less, base on the ADR ACH price of 20.