Professional Engineers Act Article 53

If a professional engineer who violates the provisions of Article 8, Paragraph 4 due to the expired professional engineer license without application for renewal practices the profession continually, they shall be subject to a fine between not less than NT$18,000 and not more than NT$90,000, the central competent authority shall order them to reapply for renewal by the specified date. If the professional engineer fails to comply by the specified date and continues to practice the profession, penalties may be imposed on each violation basis.If a professional engineer violates the provisions of Article 9, Paragraph 2, Article 12, Article 14, Paragraph 1, Article 15, Article22, or Article 23, Paragraph 3, the central competent authority shall order them to improve by a specified date. If the improvement is not made by the deadline or if there is a repeated violation, a fine between not less than NT$6,000 and not more than NT$30,000 shall be imposed. If the violation persists even after the fine, subsequent penalties may be imposed on each violation basis.
中文原文 技師法第53條
技師違反第八條第四項規定,執業執照已逾有效期間未申請換發,而繼續執行技師業務者,處新臺幣一萬八千元以上九萬元以下罰鍰,中央主管機關並應命其限期補辦申請;屆期未辦理而繼續執業者,得按次處罰。
技師違反第九條第二項、第十二條、第十四條第一項、第十五條、第二十二條或第二十三條第三項規定,中央主管機關應命其限期改善;屆期未改善或再次違反者,處新臺幣六千元以上三萬元以下罰鍰;經處罰鍰後仍未改善者,得按次處罰。

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