Aluminum Hydroxide

Aluminum hydroxide (gibbsite/ATH) is a flame retardant filler, antacid active ingredient, and alumina precursor that enters the US under a single tariff line (2818300000), making origin and grade the primary commercial differentiators. Brazil and Germany lead US import supply, with Jamaica, Canada, and Denmark also contributing. The pharmaceutical and food-grade applications of aluminum hydroxide mean that certain end-use formulations may require FDA review, though the bulk industrial chemical itself does not trigger mandatory admissibility inspection at the border.