Labor Standards Act Article 11

No employer shall, even by advance notice to a worker, terminate a labor contract unless one of the following situations arises:1. Where the employer’s business is suspended or has been transferred.2. Where the employer’s business suffers an operating loss, or business contraction.3. Where force majeure necessitates the suspension of business for more than one month.4. Where the change of the nature of business necessitates the reduction of workforce and the terminated employees can not be reassigned to other suitable positions.5. A particular worker is clearly not able to perform satisfactorily the duties required of the position held.
中文原文 勞動基準法第11條
非有左列情事之一者,雇主不得預告勞工終止勞動契約:
一、歇業或轉讓時。
二、虧損或業務緊縮時。
三、不可抗力暫停工作在一個月以上時。
四、業務性質變更,有減少勞工之必要,又無適當工作可供安置時。
五、勞工對於所擔任之工作確不能勝任時。

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