Regulations for Managing and Reviewing Imported Organic Agricultural Products Article 8

Importers shall preserve records and documents pertaining to the import and sale of organic agricultural products for at least five years.
中文原文 進口有機農產品審查管理辦法第8條
進口業者應就進口及販賣有機農產品相關之紀錄及文件,至少保存五年。

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