股本结构
单位：万股
| 公告日期 | 2012-01-12 | 2011-06-30 | 2010-06-30 | 2009-06-30 | 2008-07-15 | 2007-05-04 |
|---|---|---|---|---|---|---|
| 证券总股本 | 2237.59 | 2252.98 | 2360.55 | 2407.92 | 2456.26 | 2500.00 |
| 普通股本 | 55939.78 | 56324.48 | 59013.71 | 60197.88 | 61406.40 | 62500.00 |
| 优先股 | 未披露 | 未披露 | 未披露 | 未披露 | 未披露 | 未披露 |
| 其他 | 未披露 | 未披露 | 未披露 | 未披露 | 未披露 | 未披露 |
| 变动日期 | 2012-01-12 | 2010-12-31 | 2009-12-31 | 2008-12-31 | 2007-12-31 | 2006-12-31 |
注释：中概股证券总股本=普通股股本/
存托凭证比例
，当前存托凭证比例为：25
历史变动
| 公告日期 | 变动后普通股本（万股） | 变动后优先股（万股） | 变动原因 | 变动日期 |
|---|---|---|---|---|
| 2012-01-12 | 55939.78 | 未披露 | 定期报告 | 2012-01-12 |
| 2011-06-30 | 56324.48 | 未披露 |
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Share repurchased during the year
|
2010-12-31 |
| 2010-06-30 | 59013.71 | 未披露 |
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from December 31, 2008 to December 31, 2009
Share repurchased during the year
|
2009-12-31 |
| 2009-06-30 | 60197.88 | 未披露 |
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From December 31, 2007 to December 31, 2008
Share repurchased during the year
|
2008-12-31 |
| 2008-07-15 | 61406.40 | 未披露 |
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From December 31, 2006 to December 31, 2007
Share repurchased during the year
|
2007-12-31 |
| 2007-05-04 | 62500.00 | 未披露 |
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From December 31 2005 to December 31, 2006
Issue of new shares, net of related offering costs of RMB 71,534
Conversion of mandatorily redeemable convertible preference shares
|
2006-12-31 |
Share repurchased during the year
from December 31, 2008 to December 31, 2009
Share repurchased during the year
From December 31, 2007 to December 31, 2008
Share repurchased during the year
From December 31, 2006 to December 31, 2007
Share repurchased during the year
From December 31 2005 to December 31, 2006
Issue of new shares, net of related offering costs of RMB 71,534
Conversion of mandatorily redeemable convertible preference shares