Regulations Governing the Determination of Country of Origin of Imported Goods Article 4

The origin of imported goods shall be ruled by the Customs Authorities at the place of importation. In the event of any doubt in the definition of origin of imported goods, the Customs Authorities at the place of importation shall request the obligated tax payer to provide a certificate of origin or samples within a given deadline.The certificate of origin mentioned in the preceding paragraph shall include transaction documents, information related to the raw materials used on production of the imported goods, processing data, or other related information.In the case that the obligated tax payer fails to provide a certificate of origin or samples within the given deadline as set forth in paragraph 1, or the certificate documents or samples provided by the obligated tax payer are insufficient to identify the origin of the imported goods, the Customs Authorities at the place of importation shall request other agencies to assist in the origin identification. Where the other agencies are not able to put forth specific opinions in writing within 20 days after the assistance request from the Customs Authorities at the place of importation, the Customs Authorities at the place of importation is entitled to determine the origin of the imported goods based on the collected data.The other agencies as referred in the preceding paragraph include the Council of Agriculture of the Executive Yuan, the Ministry of Economic Affairs, and other related agencies.
中文原文 進口貨物原產地認定標準第4條
進口貨物原產地由進口地關稅局認定之。
原產地認定有疑義時,進口地關稅局得通知納稅義務人限期提供產地證明文件或樣品。
前項所稱產地證明文件,包括交易文件、產製該貨物之原物料或加工資料或其他相關資料。
納稅義務人未依第一項期限提供產地證明文件或樣品,或所提供證明文件或樣品不足認定原產地,進口地關稅局得請求其他機關協助認定。
其他機關未能自進口地關稅局請求協助日起二十日內提出明確書面意見時,進口地關稅局應就現有查得資料認定貨物原產地。
前項其他機關包括行政院農業委員會、經濟部及其他相關機關。

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