A: According to Article 8 of the “Regulations on the Permission and Administration of the Employment of Foreign Workers” and Article 9 of “The Qualifications and Criteria Standards of the Employment of Foreign Professionals Engaging in Professional Knowledge or Skills for short-term Supplementary Learning Centers”, an employer may apply for an extension within four months prior to expiration by providing the required documents; However, the duration of the previous work permit is less than six months, may apply for an extension after exceeding two-thirds of the duration of the work permit.