Regulations for Motor Vehicle Safety Investigation, Recall /Correction, Supervision and Management(The official Regulations are written in Chinese, this English edition is for your reference only.) Article 18

When implementing the vehicle safety recall and correction, manufacturers, import agents and importers shall use remarkable words “Safety recall and correction” on the apparent location of the publication and informing letters, and at least indicate the information including the names of manufacturers, import agents and importers, address, vehicle brand, vehicle type, safety recall and correction items, safety effect description, contacting unit and toll-free telephone number for inquiry as well as the description that all the recall and correction cost will be covered by manufacturers , import agents and importers.After the informing letters were sent, if the vehicle owners or the addresses of the owners have been changed or the letters have been rejected so that the vehicle owners can not be informed with the recall information, then the vehicle manufacturers, import agents or importers may apply through the professional institution to MOTC. After the application is approved, MOTC shall appoint the vehicle information managing institution to send the recall informing letters to vehicle owners on behalf of vehicle manufacturers, import agents or importers.
中文原文 汽車安全性調查召回改正及監督管理辦法第18條
製造廠、進口商或進口人實施汽車安全性召回改正,應於公告及通知書之內容明顯處,以顯著字體註明「安全性召回改正」之文字,並應至少載明召回改正之製造廠、進口商或進口人名稱、地址、汽車廠牌、車型、安全性召回改正項目、安全影響說明、處理聯絡單位、免付費查詢電話及汽車召回改正費用由製造廠、進口商或進口人負擔等內容說明。
經依前項規定寄發召回改正車主通知書後,如因車主異動、地址變更或郵遞退件等情形,致確實無法通知車主知悉召回改正時,得向專業機構提出申請,並經專業機構審核報經交通部同意後,委託指定之公路監理車籍資料維護機構代為寄發。

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