1. Different functions and powers: the president is the top manager of the company's management hired or recommended by shareholders, while the chairman directly leads the board of directors or the board of directors in the company.

When a company has no board of directors but only one executive director, the executive director is usually printed as the chairman on the business card. The chairman here is actually a person exercising the power of the board of directors. In fact, the power of the chairman often lies not in the title itself, but in that he is often the major shareholder and actual controller of the company. It is for this reason that the chairman of state-owned enterprises may have little power.

2. Different identities: the chairman is the actual owner of the company, and the main source of income is the operating profit of the company; The president is the actual operator of the company, and the main source of income is the salary agreed upon when signing the contract.

3. Different definitions: the chairman is the organizer of the company's board of directors, usually a person elected by shareholder representatives to represent the interests of shareholders and supervise the daily operation of the company; The president is often the general manager, who is the top manager of the company's management appointed or recommended by shareholders.

4. Different types of companies: Generally speaking, "president" is the most common name in a larger company or several smaller or professional companies under the company, while "general manager" is the most common name in a single company. The title of the chairman has not changed.