What's the difference between a company chairman and a board of directors?

Well, after the establishment of the board of directors, the chairman is elected by all the directors, so the chairman is responsible for the daily affairs of the board of directors. The Company Law clearly stipulates the rights and responsibilities of the chairman and the board of directors. Speaking of the difference, the chairman is a person who performs duties on behalf of the board of directors. Generally speaking, the legal representative is the chairman or appointed by the chairman. The board of directors is the superstructure of the whole company, and it is a collective, usually 3-7 people.