Regulations Governing Management of Prepackaged Products Article 6

Multi-piece prepackaged products shall bear the number of the individual prepackaged products and the net content of a single prepackage, or with the total number of the individual prepackaged products and the whole net content. However, it is not necessary to bear the number of the individual prepackaged products if the individual prepackaged products are visible and easy to count from the outer package.
中文原文 定量包裝商品管理辦法第6條
多件包裝商品應標示總件數及單件定量包裝商品之淨含量,或標示總件數及總淨含量。
但外包裝可清楚目視個別商品件數者,得不標示總件數。

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