Subjects participating in compulsory social insurance are regulated accordingly Point h, Clause 1, Article 2 Social Insurance Law as follows:

Applicable subjects

1. Employees who are Vietnamese citizens are eligible to participate compulsory social insurance, include:

...

h) Business managers and cooperative managers receive salaries;

...

Besides, based on Point dd Clause 1 Article 2 Decree No. 115/2015/ND-CP as follows:

Applicable subjects

1. Employees who are Vietnamese citizens participate compulsory social insurance according to the provisions of this Decree, including:

...

d) Business managers and cooperative managers receive salaries;

...

Additionally, according to Clause 24 Article 4 Enterprise Law, there is an explanation of business managers as follows:

Business managers are private business managers and company managers, including private business owners, general partners, Chairman of the Board of Members, members of the Board of Members, and President of the Company. company, Chairman of the Board of Directors, members of the Board of Directors, Director or General Director and individuals holding other management positions as prescribed in the company's Charter.

Therefore, in case the Chairman of the Board of Directors of a Joint Stock Company is a business manager who receives a monthly salary, he will have to participate in mandatory social insurance.