| 报告时间 | 股东名称 | 持股数量(股) | 占总股本比例(%) |
| 2011-06-30 | UBS (LUXEMBOURG) S.A. | 5,371,141 | 0.37 |
| 2011-03-31 | UBS (LUXEMBOURG) S.A. | 5,589,241 | 0.38 |
| 2010-09-30 | UBS (LUXEMBOURG) S.A. | 5,430,841 | 0.37 |
| 2009-12-31 | UBS (LUXEMBOURG) S.A. | 2,420,909 | 0.33 |
| 2009-09-30 | UBS (LUXEMBOURG) S.A. | 2,461,609 | 0.34 |
| 2009-06-30 | UBS (LUXEMBOURG) S.A. | 2,461,609 | 0.34 |