What is the act of dividing the money received from the company?

First of all, Zhang signed an agreement with Company A in good faith, and Company A will fulfill the agreement.

Secondly, it is malicious fraud to sign an agreement for F in the name of Company A, and a lawsuit can be filed.

In addition, how did F sign an agreement in the name of Company A to find out whether shareholder B colluded with F maliciously to commit fraud?

This is my opinion. Specific matters, but also consult a professional legal person.