50%铜关税引爆套利“狂欢”，全球铜市冰火交织

Group 1: Market Reaction to Tariffs - The U.S. has imposed a 50% tariff on imported copper, causing significant volatility in the global copper market [1] - COMEX copper futures have seen a three-day increase, reaching $5.59 per pound, with a weekly high of $5.89 per pound, marking a historical peak [1] - LME copper futures experienced a weekly decline of approximately 1.2%, closing at $9,734 per ton, rebounding from a low of $9,553 per ton [1] Group 2: Arbitrage Opportunities and Risks - The price difference between COMEX and LME has widened to $2,500 per ton, significantly exceeding the average stable price difference of $300 per ton [2] - Traders are engaging in arbitrage by buying physical copper and shorting LME to lock in profits, leading to a divergence in price movements [2] - There is an expectation that the price difference will continue to expand until the tariff policy is fully implemented, with potential for increased market volatility [2] Group 3: Inventory Changes - As of July 7, COMEX copper inventory reached 221,000 tons, a significant increase from under 100,000 tons in February [3] - In contrast, LME copper inventory has sharply decreased from 270,900 tons to 97,400 tons since mid-February, a decline of over 64% [3] - The increase in COMEX inventory is not keeping pace with the reduction in LME inventory, indicating potential supply chain issues [3] Group 4: Industry Impact and Supply Chain Adjustments - The tariff policy is expected to restructure the global copper supply chain, with potential cost increases in sectors like automotive and renewable energy [4] - Major copper exporting countries like Chile may redirect their supplies to Asian and European markets, affecting global supply-demand balance [4] - The U.S. is projected to significantly increase copper imports, with estimates suggesting a rise to 1.36 million tons for the year, compared to 900,000 tons last year [5] Group 5: Long-term Supply and Demand Outlook - The global supply of refined copper is not currently short, but there are concerns about a weakening supply-demand balance by 2025 [5] - The anticipated influx of copper into the U.S. may lead to increased inventory levels at COMEX, exerting downward pressure on prices [5] - Domestic copper prices may face challenges due to shipping delays if tariffs are implemented as scheduled, limiting price support [5]