Ideally you should only resign once the new WP has been granted, if you have problems with the WP application and you resigned you could be in trouble. Wait until the WP is in your hands and resign that day if you want.... So it's possible for the future company to apply for a working permit, even ...

I am currently on a work permit. I would like to quit my current position and get another company to sponsor my work permit. After I have left the employ of my current company and my work permit application has been made, can I work for the new company before the work permit has been approved? Or ca...