Customs Act Article 62
I. In the case where imported goods are returned or exported by transshipment due to a mistake made during loading, excessive unloading or any other special reasons prior to declaration, an application shall be submitted to Customs for approval within fifteen days following the importation date of the transportation carrying such goods; such goods shall be returned in their original form or exported by transshipment within ninety days. In the case in which an application cannot be submitted on time, an application for storage in a bonded factory shall, prior to expiration of the stipulated period, be submitted to Customs in accordance with Article 58.II. If the preceding paragraph is not complied with, the goods shall be sold or disposed of, in accordance with Paragraph 2, Article 73 mutatis mutandis.