The use of the FTA preference allows qualified U.S. products to be more competitive through reduced or exempt duties (tariffs), although local taxes continue to apply. FTA certificates and certifications are optional and are not required for customs clearance shipments. However, goods shipped without a single one can be considered a standard tariff. So be sure to attach an FTA certificate of origin. For shipments under $2500, the exporter must indicate on an invoice that a product originates in the United States and qualifies for a free trade agreement (e.g.B. NAFTA). Certificates can apply to one or more specific shipments. Certificates issued for several batches contain a range of dates, i.e. the “framework period”, during which the certification is valid. The duration of the package can last a maximum of 365 days. Certificates may either contain products currently being dispatched or contain a list of all authorised products that may be dispatched during the period covered. Upon request, the importer must provide Korea Customs with a written or electronic declaration clarifying that the goods originate in the United States.
U.S. products containing certain non-U.S. products or products of Korean origin are eligible for preferential treatment, and the rules for qualifying these products are explained and analyzed elsewhere in the Rules of Origin document. In some cases, a considerable research effort is required to determine the origin of the components of the manufacture of the goods. At the time of application for a refund, the importer shall be required to provide a written declaration on the originating status of the goods and, if the customs authority so requires, a certificate of origin or any other information certifying that the product is considered to be originating. . . .