Enforcement Rules of Value-added and Non-value-added Business Tax Act Article 14

The business entities which apply for exemption from business tax pursuant to Subparagraph 26 of Paragraph 1 of Article 8 of the Act shall present documents issued by the purchasing unit or the user unit of the Ministry of National Defense, stating the items, specifications, quantities, unit prices, total amount of the sale and the fact that such products conform to Subparagraph 26 of Paragraph 1 of Article 8 of the Act.
中文原文 加值型及非加值型營業稅法施行細則第14條
適用本法第八條第一項第二十六款免徵營業稅之營業人,應檢送國防部採購單位或其指定使用單位填具載有品名、規格、數量、單價、總金額及本產品(器材)符合本法第八條第一項第二十六款規定之證明。

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