Regulations Governing Employment Transfer Procedures and Employment Qualifications for Foreigners Engaging in the Jobs Specified in Subparagraph 8 to 11 of Paragraph 1 of Article 46 of the Employment Service Act Article 14

The Employment Permit period for the employer offering consecutive employment is restricted to three years. However, the Employment Permit period for the employer applying for consecutive employment using the Recruitment Permit is restricted to supplementing the foreigners' remaining employment period of the original Employment Permit.
中文原文 外國人受聘僱從事就業服務法第四十六條第一項第八款至第十一款規定工作之轉換雇主或工作程序準則第14條
接續聘僱之雇主聘僱許可期間最長為三年。
但以遞補招募許可申請接續聘僱者,以補足所聘僱外國人原聘僱許可期間為限。

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