Commodity Tax Act Article 9-1

Within five years from the effective date of this article, any domestic manufacturers or importers may apply for exemption from the commodity tax on the glass used exclusively for photovoltaic modules by submitting a statement promising not to sell or use such products for any other purposes as well as the certificate of usage issued by the competent industry authority.The Executive Yuan shall, in six months before the exemption period expires, decide to extend or terminate the exemption period based on the actual situation.
中文原文 貨物稅條例第9-1條
於本條文生效日起五年內,由國外進口或國內產製專供太陽光電模組用之玻璃,檢具承諾不轉售或移作他用之聲明書及工業主管機關之用途證明文件者,免徵貨物稅。
前項免徵年限屆期前半年,行政院得視實際推展情況決定是否延長免徵年限。

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