Electrolytic Copper Starter Sheets from Mexico
Thin stainless steel-backed copper sheets used to initiate cathode deposition in electrolytic refining cells. Under HTS 7402.00.00.00 as copper anodes for electrolytic refining when considering the deposited copper layer. These starter sheets become perpetual cathodes after initial deposition.
Duty Rate — Mexico → United States
0%
Rate breakdown
9903.05.860%Universal product exemption (U.S. note 52(b))
Import Tips
• Document copper deposition thickness and stainless backing specifications to distinguish from refined copper foils
• Include end-user statements from refineries confirming starter sheet application in electrolytic cells
• Avoid declaring as 'copper sheet' alone; specify refining function to prevent 7409 classification