Thanks for your mail. Chenglei will take AL and International Labor Day from Apr 30 to May 8. Email will not be access.

He Yue will be my backup contact on Apr 30 and May 5 - May 8.

For others, you could get to my manager Huang Yuanjun.

For emergency , pls call my mobile: +86 15021037121.

Thanks

Chenglei