I found Yahoo Finance (China version) is not good enough. For instance, it does not have information for earnings and PE ratio for the stocks, e.g., check out this 600064.SS Nanjing High Tech. I found Sina Finance does a better job. It has these information. You can check out the 600064 here (scroll down, check out 最新简况).
One thing in common is they both offer real time price quote.