分析人士：逐步回归基本面定价

Group 1: Market Changes and Impacts - The U.S. government announced that it will not impose tariffs on imported refined copper and other input materials, leading to a significant drop in COMEX copper prices by over 18% [1][2] - Following the tariff announcement, the price difference between COMEX and LME copper narrowed from $2,700/ton to below $300/ton, indicating a shift in market dynamics [2] - The U.S. copper imports surged by 129% year-on-year in the first half of the year, reaching 860,000 tons, which contributed to the accumulation of COMEX copper inventories [2][3] Group 2: Supply and Demand Dynamics - The current copper market is characterized by weak supply and demand, with domestic refined copper production increasing due to high sulfuric acid prices, while downstream demand remains subdued [4] - The expectation of a supply surplus in the second half of the year suggests that copper prices will face downward pressure, although lower prices may stimulate buying from downstream consumers [5] - The recent decline in U.S. manufacturing PMI and non-farm employment data has raised concerns about a potential economic recession, which could negatively impact copper prices in the short term [4][5]