Hello,
I am currently an English teacher in China but have found the experience to be poor with regard to the work standards. I have been offered a different job entirely to which my computing degree applies. I would like to switch but am concerned about what this might involve since the foreign expert certificate I hold is probably (I assume) for teaching only and a handout from the English school stated that if any employee leaves the company the residence permit instantly becomes invalid.Could you confirm this please? Preferably with a source as I am having real troubles finding any solid information with regards to it. One source I read said that the residence permit is not controlled by the company in any way.

What do you recommend I should do?
Thank you in advance.