Miller Process Silver Dore from Japan
Silver dore bullion produced through the Miller chlorination process, which partially refines gold-bearing silver but leaves an impure silver phase. This unwrought material is in bar form and requires further electrolytic refining, making it classifiable as unwrought silver under tariff item 7106.91.00.
Duty Rate — Japan → Canada
Import Tips
• Provide the CBSA with a complete assay report showing silver, gold, and impurity percentages to support the classification as unwrought silver dore
• Since Miller process dore often contains significant gold, verify that silver predominates by weight to avoid reclassification under gold headings
• Keep records of the refining contract or intended use, as the CBSA may question whether the material is truly unwrought or a semi-manufactured product