Labor Standards Act Article 12

(Ⅰ)In any of the following situations, an employer may terminate a labor contract without advance notice:1. Where a worker misrepresents any fact at the time of signing of a labor contract in a manner which might mislead his/ her employer and thus caused him/her to sustain damage therefrom.2. Where a worker commits a violent act against or grossly insults the employer, his /her family member or agent of the employer, or a fellow worker.3. Where a worker has been sentenced to temporary imprisonment in a final and conclusive judgment, and is not granted a suspended sentence or permitted to commute the sentence to payment of a fine.4. Where a worker is in serious breach of the labor contract or in serious violation of working rules.5. Where a worker deliberately damages or abuses any machinery, tool, raw materials, product or other property of the employer or deliberately discloses any technical or confidential information of the employer thereby causing damage to the employer.6. Where a worker is, without good cause, absent from work for three consecutive days, or for a total six days in any month.(Ⅱ)Where an employer desires to terminate a labor contract pursuant to Subparagraphs 1 and 2, Subparagraphs 4 to 6 of the preceding Paragraph, he/she shall do so within thirty days from the date he/she becomes aware of the particular situation.
中文原文 勞動基準法第12條
勞工有左列情形之一者,雇主得不經預告終止契約:
一、於訂立勞動契約時為虛偽意思表示,使雇主誤信而有受損害之虞者。
二、對於雇主、雇主家屬、雇主代理人或其他共同工作之勞工,實施暴行或有重大侮辱之行為者。
三、受有期徒刑以上刑之宣告確定,而未諭知緩刑或未准易科罰金者。
四、違反勞動契約或工作規則,情節重大者。
五、故意損耗機器、工具、原料、產品,或其他雇主所有物品,或故意洩漏雇主技術上、營業上之秘密,致雇主受有損害者。
六、無正當理由繼續曠工三日,或一個月內曠工達六日者。
雇主依前項第一款、第二款及第四款至第六款規定終止契約者,應自知悉其情形之日起,三十日內為之。

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