The Enforcement Rules of the Specifically Selected Goods and Services Tax Act Article 28

When any taxed specifically selected good of Article 2, paragraph 1, subparagraphs 2 to 6 of the Act is for any reason returned after being sold or used, the new good for which it is exchanged shall duly be subject to the specifically selected goods and services tax.
中文原文 特種貨物及勞務稅條例施行細則第28條
本條例第二條第一項第二款至第六款規定之已稅特種貨物經銷售使用後,因故退換之新品,應依法課徵特種貨物及勞務稅。

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