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3824.92.00.00/Polyglycol Ester of Methylphosphonic Acid Flame Retardant/Germany

Polyglycol Ester of Methylphosphonic Acid Flame Retardant from Germany

This is a specific polyglycol ester of methylphosphonic acid used as a flame retardant additive in polyurethane foams and plastics. It falls under HTS 3824.92.00.00 because it is explicitly classified as polyglycol esters of methylphosphonic acid, a chemical preparation not elsewhere specified. These compounds provide fire resistance by releasing non-flammable gases when exposed to heat.

Duty Rate — Germany → United States

10%

Rate breakdown

9903.05.3910%Section 301 (forced labor) — European Union member state (col1 rate < 10 percent): MFN < 10% → total duty capped at 10%
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Import Tips

• Verify chemical composition via lab analysis to confirm it meets the exact definition of polyglycol esters of methylphosphonic acid

• Include Safety Data Sheets (SDS) and TSCA certification for US EPA compliance, as these are regulated flame retardants

• Avoid misclassification as generic plastic additives under 3824.99; specify phosphonate structure in invoices