As discussed with the Department of Industrial Works (DIW) it has been classified as a hazardous material type 2 as attached1.
According to Hazardous substance Act. B.E.2535, chapter2, section 18 on page 5 of 18 as attached 2, storage and possession must be licensed by the DIW.
However, We had inspected by the DIW last week. We had commanded by the DIW to correct chemical storage.