The Commercial Port Law Article 17

In order to facilitate the import and transportation of bulk cargoes which are essential for public livelihood, or raw materials for industrial needs, the Commercial Port Administrative Authority, Maritime and Port Bureau or the designated agencies shall give priority to those ships carrying said cargoes for berthing, loading or unloading.
中文原文 商港法第17條
商港經營事業機構、航港局或指定機關為配合船舶載運進口大宗民生必需品或工業原料之運輸,應優先指定船席停泊裝卸。

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