美国宣布将对部分进口铜产品征收50%关税，纽约期铜闪崩→

Core Viewpoint - The U.S. government has announced a 50% tariff on imported copper semi-finished products and high-copper-content derivatives starting August 1, excluding refined copper and major products from this tax, which contradicts market expectations [1][3][6]. Group 1: Tariff Announcement - President Trump signed an announcement on July 30, imposing a 50% tariff on imports of copper semi-finished products such as copper pipes, wires, rods, and sheets, as well as high-copper-content derivatives like fittings, cables, connectors, and electrical components [1][3]. - Refined copper and major products are excluded from the tariff, which was unexpected by the market, as there were anticipations that all imported refined metals would be taxed [1][3][6]. Group 2: Market Reaction - Following the announcement, copper futures on the New York Commodity Exchange experienced a significant drop, with prices falling over 18% at one point, ultimately closing at $4.63 per pound, down approximately 17% [3][5]. - The announcement has been described as unexpectedly disruptive to international markets, indicating a volatile response from traders [3][5]. Group 3: Historical Context - Earlier in the year, Trump hinted at potential copper tariffs, which led to a notable increase in U.S. copper prices compared to global markets, resulting in a surge of copper products entering the U.S. [5][6]. - On July 8, after announcing a 50% tariff on all imported copper, copper futures saw a record single-day increase of 17%, reaching $5.89 per pound, marking the largest single-day price increase since 1989 [5][6]. Group 4: Trade Flow Implications - The exclusion of refined copper from the tariff is expected to further disrupt global copper trade flows, with significant quantities of copper products already shipped to the U.S. potentially being re-exported [6].