Is it illegal for employees to take part-time jobs?

Although it is not illegal for employees to work part-time, but it has a serious impact on the completion of their work tasks, or refuses to make corrections after being put forward by the employer, the employer may unilaterally terminate the labor contract without compensation. Laborers engaged in part-time employment may conclude labor contracts with one or more employers; However, the labor contract concluded later does not affect the performance of the labor contract concluded before.