COMEX期铜相当于伦铜的溢价跌至每吨17美元，特朗普最新关税政策将精炼铜排除在征税范围之外。

Core Viewpoint - The premium of COMEX copper over London copper has decreased to $17 per ton, influenced by Trump's latest tariff policy which excludes refined copper from tariffs [1] Group 1 - COMEX copper is currently trading at a premium of $17 per ton compared to London copper [1] - Trump's recent tariff policy has specifically excluded refined copper from the list of products subject to tariffs [1]