State-Owned Enterprise Management Act Article 35

The director, auditor, trustee, and supervisor of one state-run enterprise shall not concurrently hold the same position in another state-run enterprise, except for the purpose of merger or establishment of holding companies. Under such exceptional circumstances, the director and trustee of one state-run enterprise may concurrently hold the same position in other state-run enterprise, as well as hold the positions of auditor and supervisor. The director, auditor, trustee, and supervisor who hold the same in another state-run enterprise may be elected as the chairperson, vice chairperson of the board, or other equal positions.At least one fifth of the directors, trustees of one state-run enterprise who represent state capital shall be recommended by the relevant labor union.The labor union may replace the recommended directors and trustees who are deemed incompetent.
中文原文 國營事業管理法第35條
國營事業董事、監察人或理、監事,不得兼任其他國營事業董事、監察人或理、監事。
但為推動合併或成立控股公司而兼任者,僅得兼任一職,且擔任董事或理事者不得兼任監察人或監事,反之亦然;並得被選任為董事長、副董事長或相當之職位。
前項董事或理事,其代表政府股份者,應至少有五分之一席次,由國營事業主管機關聘請工會推派之代表擔任。
前項工會推派之代表,有不適任情形者,該國營事業工會得另行推派之。

English translation for reference only; the Chinese text prevails. Not legal advice.