Miller Process Silver Dore
Partially refined dore from Miller chlorination, impure silver phase. HTS 7106.91.10.20 as unwrought.
Import Duty Rates by Country of Origin
Alternative Classifications
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Import Tips & Compliance
• Chlorine residue declarations required
Related Products under HTS 7106.91.10.20
Gold-Silver Dore Bars
Dore bars are semi-refined bullion containing a mixture of gold and silver, typically produced from mining operations before full separation. Classified under HTS 7106.91.10.20 as unwrought silver dore, where silver is the predominant precious metal by weight per Chapter 71 Note 5 rules. These impure bars require further refining to separate the metals.
Unrefined Silver Dore Ingots
Impure ingots from primary silver mining, assaying 70-80% silver with gold impurities, in unwrought form ready for electrolytic refining. Fits HTS 7106.91.10.20 as dore bullion where silver predominates. Not suitable for fabrication without purification.
Electrowinning Silver Dore Bars
Dore bars from electrowinning cells in silver heap leach operations, impure with 80% Ag and 15% Au. Unwrought form under HTS 7106.91.10.20 due to silver predominance and lack of full refinement. Used by mints and refiners.
Bolivian Potosi Silver Dore
Traditional dore from Potosi mines, high-grade silver (85% Ag) with doré characteristics from amalgamation. Unwrought silver bullion under HTS 7106.91.10.20. Historic import source for U.S. refineries.
Heap Leach Silver Dore Pours
Poured dore from cyanide heap leaching of silver oxides, 72% Ag. Meets unwrought dore criteria for 7106.91.10.20.
Peruvian Silver Dore Bars
Dore from Yanacocha operations, silver-gold mix. Silver dominant for 7106.91.10.20.