I got good news. I got a permanent visa in Shenzhen for 5 years of working.

I just try for the heck of it. Ive worked for the same school as an English teacher for 5 years in a row and instead of renewing my typical resident permit z visa type like i did every year before(this would have been my 6th year.) I just applied for a permanent visa in Shenzhen, China and after 14 days i was granted this wonderful card and visa. I did bring all my tax records with me as well. So it os possible. Just try. Im a Shenzhen guy now. AMERICAN by birth.