| Tel：+86-10-8225 0016 |
| Fax：+86-10-8225 4766 |
| E-mail：yasn_intl@163.com |
| Add ：Suite 505, Tower A, North Ring Center, 18 YuMin Road, XiCheng Dist., Beijing 100029, P. R. China |
|
International Department Ruby Yang： +86-10-8225-0016 (ext.638)
E-mail: ruyh_02@sina.com |
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