I have a criminal record in the UK mostly for cannabis will I be refused a work permit for China.

I have a TEFL and a Diploma in Sport Studies what are my best options. I have taught in an International school in Cambodia and have worked with children in sports from age 7 to 16 from all over the world for over 25 years and the majority of them, English was their second language please could you let me know my chances.

Best Regards.

Alan