Standards for Establishing Places for Manufacturing, Storing, Processing Public Hazardous Substances and Flammable Pressurized Gases, and Regulations on Safety Control of such Places Article 76

The operator of liquefied petroleum gases trading place shall mark its trade name and telephone number on the container at where can be easily identified.
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76條
液化石油氣販賣場所之經營者應於容器明顯位置標示可供辨識之商號及電話。

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