Indigenous Peoples Employment Rights Protection Act Article 11

Each level of government, public school and state-run businesses shall contract with indigenous individuals, institutions, legal persons or groups when conducting procurement with an amount less than the amount promulgated by the Government Procurement Law in the aboriginal areas. However, this limit does not apply when aboriginal individuals, institutions, legal persons or groups are unable to be contracted.
中文原文 原住民族工作權保障法第11條
各級政府機關、公立學校及公營事業機構,辦理位於原住民地區未達政府採購法公告金額之採購,應由原住民個人、機構、法人或團體承包。
但原住民個人、機構、法人或團體無法承包者,不在此限。

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