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Dinonylnaphthalene Sulfonic Acid from Mexico

Dinonylnaphthalene sulfonic acid serves as extractant in hydrometallurgy and lube oil additives. Sulfonated phenolic derivative containing only sulfo groups, classified HTS 2908.99.1500 when >90% pure.

Duty Rate — Mexico → United States

15.5%

Rate breakdown

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

Import Tips

Acid number 95-105 mg KOH/g specification; stable >6 months certification

Pitfall: Solvent-dissolved forms (50% in kerosene) reclassified to Chapter 38

Dinonylnaphthalene Sulfonic Acid from Mexico — Import Duty Rate | HTS 2908.99.15.00