Organizational Act of the National Science and Technology Council Article 6

To meet service needs, the Council may, upon obtaining the consent of the Executive Yuan, send personnel to work abroad, and shall handle relevant matters in accordance with the Organization Act of Diplomatic Missions.When necessary, individuals at junior college or higher-level schools who are qualified professors may be appointed to join the personnel assigned to work at a diplomatic mission overseas referred to in the preceding paragraph and serve as the head of the science and technology division of an overseas agency. The period of appointment of such individuals may not exceed four years, and they shall return to their original post at the end of this period.
中文原文 科技部組織法第6條
本會為應業務需要,得報請行政院核准,派員駐境外辦事,並依駐外機構組織通則規定辦理。
前項駐外人員擔任駐外機構科技單位主管職務,必要時得借調專科以上學校具教授資格者聘任之;聘任期間不得超過四年,期滿應即歸建。

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