Regulations Governing Issuance of Certificates of Origin and Certificates of Processing Article 26

Issuing bodies shall keep confidential the information provided by applicants.Starting from the date of issuance, issuing bodies shall retain the written information provided by each applicant for three years in case the TITA needs to access and inspect such information. The information shall be destroyed when the three-year period expires.Starting from the date of issuance, electronic information with regard to Certificates of Origin or Certificates of Processing shall be retained for five years and deleted when the five-year period expires.
中文原文 原產地證明書及加工證明書管理辦法第26條
簽發單位對申請人提供之申請資料,應負保密責任。
申請人提供之書面資料,簽發單位應自簽發之日起保存三年,以供貿易署查核,期滿予以銷毀。
原產地證明書或加工證明書電子資料,應自簽發之日起保存五年,期滿予以銷毀。

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