As a staff member sent by the finance department to a subsidiary, how to deal with the relationship between superiors and subordinates?

I think you should have an accurate positioning of financial work. First, determine what is within your control. Many financial personnel tend to overstep their authority. As long as you are sure that you are in charge of what you should be in charge of, you don't have to think so much. Accustomed to it, praise both sides. I am in the same situation as you, and this is what I am doing now.