Multiple tourist visa to China for UK passport holder

Hi, I like to check if we can apply for a China multiple tourist L. The passport holder is UK passport holder (my boss's son), reside in Singapore but his mother is a China passport holder. They will need to go back China frequently because they have a family in China. I was told multiple is only for business, is that true? I was also told that multiple can be applied under tourist. Please confirm if we can apply tourist multiple entry L for my boss' son and what is the procedure. Please confirm China tourist multiple entry L can be done or cannot be done for UK passport holder Thank you. Appreciate very much for your quick reply.

Best regards'
Ally