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Isopentane Blowing Agent from Mexico

Technical-grade isopentane used industrially as a physical blowing agent for expandable polystyrene (EPS) foam insulation. As a pure saturated acyclic hydrocarbon, it fits HTS 2901.10.30.00 under Chapter 29 definitions. Provides low boiling point for foam expansion.

Duty Rate — Mexico → United States

10%

Rate breakdown

9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico

Import Tips

Certify compliance with TSCA for chemical import notification; label as extremely flammable

Pitfall: incorrect boiling point specs leading to misclassification