Flue Dust from Copper Smelters with Silver Particles from Mexico
Fine ash and dust captured from copper smelter flue gases, mainly copper with silver content for recovery. Classified in HTS 2620.30.0040 as copper-containing residues per chapter notes, excluding steel industry byproducts. Used as basis for metal compounds.
Duty Rate — Mexico → United States
0%
Rate breakdown
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• Submit particle size and metal assays; note statistical rules for coarse vs fine if applicable analogously
• Ensure not from municipal incinerators to avoid 2621; include smelter source affidavits
• Watch for undervaluation pitfalls; base value on recoverable silver/copper content