What concrete meausures can by achieved by this?
In general, an enterprise with 100 or more employees shall convene an assembly of employee representatives; an enterprise with fewer than 100 employees should convene an assembly of all employees. An assembly of employee representatives (or an assembly of all employees, the “Employee Assembly”) is an organ for employees to exercise their power of democratic governance of the enterprise.
The trade union of an enterprise is the executive organ of its Employee Assembly and is responsible for the daily work of the Employee Assembly. Higher-level trade unions provide guidance and assistance to enterprises (especially those without their own trade unions) in establishing and improving the Employee Assembly system. An Employee Assembly shall be convened at least once a year, and more than two-thirds of the employee representatives must be present at the plenary session of an Employee Assembly. Elections and votes on relevant matters at an Employee Assembly require a majority of all employee representatives.
Most notably, the Revised Company Law stipulates that a company with 300 employees or more shall have employee representatives on its board of directors, unless it already has a board of supervisors with employee supervisor(s) elected by the Employee Assembly.