Interesting to note that Dingyi shares are up a fair amount in the last few months with the Chairman/majority owner, Li Kwong Yuk doing his first buying on market since October 2011.
http://www.asia-insider-news.com/news/newsDetails/13461
From this report, it states that Chairman Li Kwong Yuk now owns 3.598 billion shares or 108.88%* of the issued capital..
There must be something behind Dingyi's sudden share price increase..