股本结构
单位：万股
| 公告日期 | 2019-08-05 | 2018-03-05 | 2018-03-05 | 2010-03-17 | 2009-03-18 | 2008-03-28 |
|---|---|---|---|---|---|---|
| 证券总股本 | 1009.43 | 1009.18 | 1015.36 | 1009.18 | 1009.38 | 1010.83 |
| 普通股本 | 1009.43 | 1009.18 | 1015.36 | 1009.18 | 1009.38 | 1010.83 |
| 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 | 2019-06-30 | 2018-03-01 | 2017-12-31 | 2009-12-31 | 2008-12-31 | 2008-03-28 |
注释：中概股证券总股本=普通股股本/
存托凭证比例
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 |
|---|---|---|---|---|
| 2019-08-05 | 1009.43 | 未披露 |
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from December 31, 2018 to June 30, 2019
Shares Reissued From Treasury Pursuant To Restricted Stock Unit Awards
|
2019-06-30 |
| 2018-03-05 | 1009.18 | 未披露 | 定期报告 | 2018-03-01 |
| 2018-03-05 | 1015.36 | 未披露 | 定期报告 | 2017-12-31 |
| 2010-03-17 | 1009.18 | 未披露 |
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from December 31, 2008 to December 31, 2009
Purchase of Shares for Treasury
|
2009-12-31 |
| 2009-03-18 | 1009.38 | 未披露 |
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from December 31, 2007 to December 31, 2008
Purchase of Shares for Treasury
|
2008-12-31 |
| 2008-03-28 | 1010.83 | 未披露 | 定期报告 | 2008-03-28 |
| 2008-03-28 | 1012.85 | 未披露 |
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from December 31, 2006 to December 31, 2007
Purchase of Shares for Treasury
|
2007-12-31 |
| 2006-03-31 | 1015.36 | 未披露 | 定期报告 | 2005-12-31 |
from December 31, 2018 to June 30, 2019
Shares Reissued From Treasury Pursuant To Restricted Stock Unit Awards
from December 31, 2008 to December 31, 2009
Purchase of Shares for Treasury
from December 31, 2007 to December 31, 2008
Purchase of Shares for Treasury
from December 31, 2006 to December 31, 2007
Purchase of Shares for Treasury