Management Regulations Governing Bonded Business in Technology Industrial Parks Article 31

In the case that business entities sell commodities to export-processing factories of tax credit for export after processing, the buyer and seller shall jointly fill in and sign a declaration and file the declaration with Customs.The tax credit of export processing factories mentioned in the previous paragraph shall be handled in accordance with the Regulations Governing the Offsetting or Refund of Duties and Taxes on the Raw Materials of Export Products, and the date when Customs signed the declaration shall be regarded as the import or export date.The following regulations shall be complied with in returning the commodities specified in the 1st paragraph:1.Buyer and seller shall jointly fill in and sign a declaration in which the number of the original declaration shall be indicated, and enclose the packing list and photocopies of the original declaration, to apply for approval from Customs to undertake the return procedures and enter the returned commodities in the accounts within one year after the commodities were transported outside the Parks. Customs shall notify the taxing authority if the business entities have acquired the export certificate equivalent.2.Customs shall issue duplicates of the declaration for tax refunds after the procedures stated in the preceding subparagraph are completed, for manufacturers that purchased the commodities, to apply for offsetting or refund of duties and taxes.
中文原文 加工出口區保稅業務管理辦法第31條
區內事業之貨品售與稅捐記帳之外銷加工廠再加工外銷者,應由買賣雙方聯名填具報單,向海關申報。
前項外銷加工廠之稅捐記帳,應依照外銷品沖退原料稅辦法之規定辦理,並以海關簽放報單日期視同進出口日期。
第一項貨品發生退貨情事者,應依下列規定辦理:
一、由買賣雙方聯名填具報單,並於報單上註明原報單號碼,檢附裝箱單及原報單影本,於出區後一年內,向海關申請核辦後退貨進廠登帳;已領有視同出口證明者,海關應通知稅捐機關。
二、海關辦理前款手續後,核發退稅用報單副本供原購買廠商辦理沖稅。

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