Fertilizer Management Act Article 17

Fertilizers offered for sale or intended for sale, when displayed or stored, must not be unsealed, repackaged, mixed, diluted, or have their fertilizer labeling altered. But fertilizer manufacturers or importers are exempt from these restrictions while manufacturing, processing, and packaging fertilizers.
中文原文 肥料管理法第17條
販賣或意圖販賣而陳列、貯藏之肥料,不得拆封、分裝、摻雜、稀釋或塗改肥料標示。
但肥料製造業及輸入業者,於製造、加工、分裝肥料時,不在此限。

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