According to relevant regulations, Alien Employment Permit that with the validity over one year (validity of one year not included) must be inspected by relevant authorities annually from now on.
Further explanation for annual inspection: The bearer shall apply for annual inspection in 30 days' advance before the expiring date, which is exactly one year after the issuing date or after last annual inspection of Employment Permit. Employment permit will be cancelled automatically if not annually inspected in 3 months after the expiring date. Annual inspection can be applied either through the Internet or in reception centres of relevant authorities.