Where can I renew Shantou's elevator license when it expires?

Shantou's elevator license will be renewed in the online service hall after it expires. According to relevant information, the elevator license should be re-examined in the online service hall three months before it expires. The certificate is valid for six years, and the operation certificate of special personnel is reviewed every three years. Special operations personnel must participate in knowledge updating training for re-examination. After passing the exam, go through the re-examination (replacement) procedures.