Regulations Governing the Establishment, Restructuring, Merger and Discontinuation of Schools and Branch Campuses and Branch Departments at the Senior High School Level or Below Article 35

When a school’s branch campus or branch department is discontinued, students of the discontinued branch campus or branch department may continue their studies at the mother school or another branch campus. When the mother school is discontinued, the school should issue a certificate of transfer to the students and assist them to transfer to another school. The school regulatory authority may also assign students to other schools when necessary.
中文原文 高級中等以下學校及其分校分部設立變更停辦辦法第35條
學校之分校、分部停辦時,分校、分部學生得併入本校或分校就讀;本校停辦時,其學生應由原校發給轉學證明書,轉學他校;必要時,得由各該主管機關分發至其他學校就讀。

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