Customs Act Article 51

I. When duty-paid imports are found to have been damaged or not conforming to the specifications and quality as stated in the original contract, thereby necessitating compensation or replacement by the exporter, the compensation or replacement shall be exempt from duty on the condition that the situation is reported to Customs within one month following the date of importation of the original goods, and that all relevant documents submitted to Customs have been verified as accurate.II.If the aforementioned goods are either machinery or equipment, the report and application submitted to Customs may be made within three months following the date of installation and test-run.III.The compensation or replacement goods referred to in Paragraph1 shall be imported within six months following the date of receiving the approval notice from Customs. If necessary, an extension, not exceeding six months, may be applied for with Customs before the expiration of such period.