Customs Classification: When Harmonized System Codes Shape Profit Margins
报关归类：协调制度编码如何塑造利润空间
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HS Code 8517.12.00 attracted 0% duty in Canada—but 8517.12.10 triggered 6.5% under tariff quota exhaustion, reducing margin by €142,000 on this order.
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Classification isn’t technical taxonomy; it’s commercial negotiation with customs authorities—where product narrative, not just specs, determines duty rate.
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