2620.99.75

Other materials which are residues not advanced in value or condition by any means, and which if containing over 2 percent by weight of copper, lead or zinc are not to be treated for the recovery thereof

Duty rates

General (MFN): Free
Column 2 (non-MFN): Free

“General” applies to imports from most trading partners under normal trade relations. “Special” lists products eligible for reduced or duty-free treatment under programs like GSP, USMCA, CAFTA-DR, or individual free-trade agreements. “Column 2” applies to imports from countries without normal trade relations (currently Cuba and North Korea).

Chapter 26

Ores, slag and ash (Section V — Mineral products)