Dear Sir,
I am from syria and im living in China with my family and I have a company and I changed the old company to a new company, and i have a residence permt in china .. the question is Do I have to change my residence permt by go back to my country to get a new z visa then go back to china or ther any way to change it without leaving china .. if impossible can i apply z visa from thailand or any country close to china .. if ther any way please help me .

Regards.