Z-visa required for work permit

I am owner and general manager of a WFOE in Shanghai. I live and work in Europe.
My company now wants to start to pay a salary to myself.

Could you please let me know, which kind I need in order to be entitled to officially receive a salary?
- Work permit?
- Visa / type of visa?
Due to business constraints I cannot stay for more than 5 working days at one time! I will continue to live in Europe! In the past I used to enter with F.