Standards for Establishing Places for Manufacturing, Storing, Processing Public Hazardous Substances and Flammable Pressurized Gases, and Regulations on Safety Control of such Places Article 20

If the quantity of the Six Materials is greater than the control quantity, a storage shall be provided depending on the nature of the materials.
中文原文 公共危險物品及可燃性高壓氣體製造儲存處理場所設置標準暨安全管理辦法第20條
儲存六類物品達管制量以上者,應依其性質設置儲存場所儲存。

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