How to calculate your China Work Visa Ranking

As most foreigners in China know, the work permit scheme has been unified starting April 2017 into a single system instead of the old Work Permit and Foreign Expert Certificate.

In addition, the holders of the new work permit will be classified into three categories: A, B and C so the persistent question I have been asking (and heard very often from others) is “Well, how do I know my ranking?”

I did some search on the web myself and came across multiple sites “claiming” to know but nothing came as extensive as the one that was published by China Briefing here.