關於「Custom tariff code」標籤，搜尋引擎有相關的訊息討論：

(GC451)Tariff Database Search System - 關港貿單一窗口portal.sw.nat.gov.tw › APGQ › LoginFreeTariff System-Customs administrationweb.customs.gov.tw › multiplehtmlClassification of Commodities and Regulationsfbfh.trade.gov.tw › indexEFind my Harmonised System Code - Singapore Customswww