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CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY In Thousands, except Share data, unless otherwise specified | Total USD ($) | Total CNY | Series A preferred shares CNY | Series B preferred shares CNY | Ordinary Shares USD ($) | Ordinary Shares CNY | Ordinary Shares Series A preferred shares CNY | Ordinary Shares Series B preferred shares CNY | Additional Paid-in Capital USD ($) | Additional Paid-in Capital CNY | Additional Paid-in Capital Series A preferred shares CNY | Additional Paid-in Capital Series B preferred shares CNY | Accumulated Other Comprehensive Income (Loss) USD ($) | Accumulated Other Comprehensive Income (Loss) CNY | Accumulated Deficit USD ($) | Accumulated Deficit CNY | Accumulated Deficit Series A preferred shares CNY | Accumulated Deficit Series B preferred shares CNY | Treasury stock CNY | Total USD ($) | Total CNY | Non- controlling interest USD ($) | Non- controlling interest CNY
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Beginning Balance at Dec. 31, 2008 |  | 565,020 |  |  |  | 55 |  |  |  | 1,113,150 |  |  |  | (3,822) |  | (544,363) |  |  |  |  |  |  |
Beginning Balance (in shares) at Dec. 31, 2008 |  |  |  |  |  | 70,428,100 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Comprehensive (loss) income |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net (loss) income |  | 124,827 |  |  |  |  |  |  |  |  |  |  |  |  |  | 124,827 |  |  |  |  |  |  |
Foreign currency translation adjustments |  | (165) |  |  |  |  |  |  |  |  |  |  |  | (165) |  |  |  |  |  |  |  |  |
Total Comprehensive (loss) income |  | 124,662 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Imputed interest on related parties' loan |  | 55 |  |  |  |  |  |  |  | 55 |  |  |  |  |  |  |  |  |  |  |  |  |
Accretion of preferred shares |  |  | (30,050) | (48,359) |  |  |  |  |  |  |  |  |  |  |  |  | (30,050) | (48,359) |  |  |  |  |
Initial public offering of ordinary shares (in shares) |  |  |  |  |  | 36,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Initial public offering of ordinary shares |  | 813,963 |  |  |  | 25 |  |  |  | 813,938 |  |  |  |  |  |  |  |  |  |  |  |  |
Conversion of preferred shares into ordinary shares (in shares) |  |  |  |  |  |  | 17,694,200 | 23,333,200 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Conversion of preferred shares into ordinary shares |  |  | 286,433 | 457,356 |  |  | 12 | 16 |  |  | 286,421 | 457,340 |  |  |  |  |  |  |  |  |  |  |
Share-based compensation |  | 1,006 |  |  |  |  |  |  |  | 1,006 |  |  |  |  |  |  |  |  |  |  |  |  |
Dividends |  | (16,338) |  |  |  |  |  |  |  |  |  |  |  |  |  | (16,338) |  |  |  |  |  |  |
Ending Balance at Dec. 31, 2009 |  | 2,153,748 |  |  |  | 108 |  |  |  | 2,671,910 |  |  |  | (3,987) |  | (514,283) |  |  |  |  | 2,153,748 |  |
Ending Balance (in shares) at Dec. 31, 2009 |  |  |  |  |  | 147,455,500 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Comprehensive (loss) income |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net (loss) income |  | 130,918 |  |  |  |  |  |  |  |  |  |  |  |  |  | 129,400 |  |  |  |  | 129,400 |  | 1,518
Foreign currency translation adjustments |  | (10,848) |  |  |  |  |  |  |  |  |  |  |  | (10,848) |  |  |  |  |  |  | (10,848) |  |
Total Comprehensive (loss) income |  | 120,070 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 118,552 |  | 1,518
Share-based compensation |  | 9,571 |  |  |  |  |  |  |  | 9,571 |  |  |  |  |  |  |  |  |  |  | 9,571 |  |
Share repurchase (in shares) |  |  |  |  |  | (5,101,968) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share repurchase |  | (76,780) |  |  |  | (3) |  |  |  | (76,777) |  |  |  |  |  |  |  |  |  |  | (76,780) |  |
Purchase of CCICC (note 4) |  | 95,226 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 95,226
Ending Balance at Dec. 31, 2010 |  | 2,301,835 |  |  |  | 105 |  |  |  | 2,604,704 |  |  |  | (14,835) |  | (384,883) |  |  |  |  | 2,205,091 |  | 96,744
Ending Balance (in shares) at Dec. 31, 2010 |  |  |  |  |  | 142,353,532 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Comprehensive (loss) income |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net (loss) income | (33,581) | (211,352) |  |  |  |  |  |  |  |  |  |  |  |  |  | (215,003) |  |  |  |  | (215,003) |  | 3,651
Foreign currency translation adjustments |  | (2,760) |  |  |  |  |  |  |  |  |  |  |  | (2,760) |  |  |  |  |  |  | (2,760) |  |
Total Comprehensive (loss) income |  | (214,112) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (217,763) |  | 3,651
Share-based compensation |  | 9,234 |  |  |  |  |  |  |  | 9,234 |  |  |  |  |  |  |  |  |  |  | 9,234 |  |
Share repurchase |  | (6,911) |  |  |  |  |  |  |  | (6,910) |  |  |  |  |  |  |  |  | (1) |  | (6,911) |  |
Dividends |  | (55,151) |  |  |  |  |  |  |  | (55,151) |  |  |  |  |  |  |  |  |  |  | (55,151) |  |
Contributions by non-controlling interest of GZ Proton (note 1) |  | 3,201 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3,201
Ending Balance at Dec. 31, 2011 | $ 323,820 | 2,038,096 |  |  | $ 17 | 105 |  |  | $ 405,452 | 2,551,877 |  |  | $ (2,796) | (17,595) | $ (95,313) | (599,886) |  |  | (1) | $ 307,360 | 1,934,500 | $ 16,460 | 103,596
Ending Balance (in shares) at Dec. 31, 2011 |  |  |  |  | 142,353,532 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

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