Willemite Zinc Ore Concentrate from Mexico
Concentrate derived from willemite (Zn2SiO4) ore, a silicate zinc mineral with approximately 45% zinc content post-flotation. Falls under HTS 2608.00.0030 for zinc ores, with zinc content reported statistically. Primarily imported for roasting and leaching in zinc production.
Duty Rate — Mexico → United States
0%
Rate breakdown
9903.05.860%Universal product exemption (U.S. note 52(b))
Import Tips
• Include detailed mineralogical assay confirming zinc as principal metal; label shipments with UN hazard class if applicable
• Avoid bulk packaging without ventilation to prevent moisture-induced reactions
• Comply with EPA import notifications for certain origins