| Year | 1995-1996 | 1997-2005 | 2006-2012 | 2013 |
| Proportion of CHANGCHENG shares held by ZHENYE | 8.25% | 8.25% | 7.05% | 7.05% |
| Proportion of ZHENYE shares held by CHANGCHENG | 3.98% | 4.94% | 3.31% | 0.00% |