Due to a failure at the server of our email service provider, all of our firm's email addresses (including zbsd@zhongbo-ip.com, patent@zhongbo-ip.com and other mailboxes suffixed with @zhongbo-ip.com) were unable to send and receive emails from 19:30 PM on May 17, 2021 (Monday) to 9:00 AM on May 19, 2021 (Wednesday).

Consequently, though emails sent to our email addresses during this period may not be bounced, we won't be able to receive the emails after the failure was fixed and the email addresses return to normal use.

In light of the situation, for any emails that you sent to our email addresses suffixed with @zhongbo-ip.com during the failure period and for which you have not received a confirmation of receipt, please send them again to the same addresses, so as to avoid delay on certain matters. Thank you very much!

We are deeply sorry for any inconvenience this may cause you.

Beijing ZBSD Patent &Trademark Agent Ltd.

On May 19，2021