Article 70 of the Company Law stipulates that the members of the board of supervisors of a wholly state-owned company shall not be less than five, of which the proportion of employees shall not be less than one third, and the specific proportion shall be determined by the company's articles of association.
The members of the board of supervisors are appointed by SASAC, but the employee representatives are elected by the employee congress.
The supervisors appointed by SASAC are both internal and external.
There are no internal and external oversight committees.