Natural Gas Enterprise Act Article 45

In the event of a natural gas shortage or great fluctuation in prices that might affect the steady supply of domestic natural gas or national security, the central competent authorities may carry out regulatory measures that are mandatory regarding natural gas supply and sell price.The regulations regarding the criteria, timing, procedures, applicable targets, scope, content and methods of the implementation stated in the preceding paragraph shall be prescribed by the central competent authority.
中文原文 天然氣事業法第45條
進口天然氣之氣源不足或價格大幅波動,有影響國內天然氣穩定供應或國家安全之虞時,中央主管機關得實施天然氣供應及價格管制。
前項管制之實施要件、時機、程序、適用對象、範圍、實施內容及方式之辦法,由中央主管機關定之。

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