Professional Engineers Act Article 51

If a professional engineer continues to practice the profession during the period of the professional practice suspension or after abolishment of the professional engineer license, the central competent authority shall order them to cease such practice and impose a fine between not less than NT$50,000 and not more than NT$250,000. If the unauthorized practice is not ceased, penalties may be imposed on each violation basis.
中文原文 技師法第51條
技師於受停止業務處分期間或受廢止執業執照處分仍執行技師業務者,中央主管機關應命其停止,並處新臺幣五萬元以上二十五萬元以下罰鍰;其不停止行為者,得按次處罰。

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