Regulations Governing Export of Commodities Article 13

To meet foreign trade administrative requirements, the TITA may announce in a public notice that certain designated export commodities shall bear the imprint of the Source Identification Code.Before exporting, exporters shall properly declare on export declarations the imprint mark and business code of the mold Source Identification Code (SID code). Where there is no SID code, the exporter shall declare “No SID Code”. This does not apply if the shipment is verified by Customs as “re-exportation”.
中文原文 貨品輸出管理辦法第13條
為貿易管理需要,貿易署得公告指定輸出貨品項目,應壓印來源識別碼。
出口人輸出前項貨品,應於出口報單正確申報來源識別碼模具碼中之壓印標示(IFPI)及事業代碼;無來源識別碼者,應申報「無來源識別碼」。
但經海關查明屬復運出口者,不在此限。

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