Renewal M visa in guangzhou

David, it is possible for you to extend your M type in Guangzhou and you should do it 7 days earlier before it expires.
You should first prepare the required materials: your passport, the application form, a half-length color photo, valid registration form of temporary residence, and an invitation letter of your business partner and Business License of the company.
And then submit the application to the exit and entry administration to apply for the extension.

Thanks Serena. I forgot to precise i am not living in guangzhou but in Shenzhen.. By the way can i apply for extension all though in guangzhou With Temporary résidence in Shenzhen?