沪铜日评20250917：铜价或有调整关注美联储9月议息会议点阵图-20250917

1. Report Industry Investment Rating - No information provided 2. Core View of the Report - The price of Shanghai copper may be adjusted due to the uncertainty of the Fed's future interest - rate cut amplitude, the arrival of the traditional consumption peak season, and the high copper price suppressing potential demand [2] 3. Summary by Relevant Catalogs 3.1 Market Data - Shanghai Copper Futures: On September 16, 2025, the closing price of the active contract was 80,880, down 60 from the previous day; the trading volume was 88,548 hands, an increase of 19,677; the open interest was 165,216 hands, a decrease of 14,040; the inventory was 33,692 tons, an increase of 3,049 [2] - Shanghai Copper Basis and Spot Premium/Discount: The Shanghai copper basis was 240 on September 16, 2025, up 240 from the previous day; the SMM 1 electrolytic copper average price was 81,120, up 180 [2] - London Copper: On September 16, 2025, the LME 3 - month copper futures closing price (electronic trading) was 10,117, down 72 from the previous day; the LME copper futures 0 - 3 - month contract spread was - 59.26, up 2.67 [2] - COMEX Copper: On September 16, 2025, the closing price of the active copper futures contract was 4.6991, up 0.05; the total inventory was 312,868, an increase of 2,381 [2] 3.2 Supply - Demand and Inventory Situation - Supply: There are disturbances in the production of many copper mines at home and abroad, leading to a negative China copper concentrate import index and a decrease compared with last week. The supply - demand expectation of scrap copper is tight, and the processing fees of domestic blister copper or anode plates tend to decline. The maintenance capacity of copper smelters in September increases month - on - month. Some small and medium - sized smelters in the Democratic Republic of the Congo cut production in September 2025 due to water - power supply shortages, and the Zambian government plans to restrict the export of sulfuric acid to the Democratic Republic of the Congo [2] - Demand: The expectation of the traditional consumption peak season leads to a recovery in the demand of some copper processing industries, but the high copper price makes downstream enterprises mainly consume existing inventories and only make rigid - demand purchases [2] - Inventory: China's electrolytic copper social inventory increases compared with last week; LME electrolytic copper inventory decreases compared with last week; COMEX copper inventory increases compared with last week [2] 3.3 Trading Strategy - For previous long positions, take profits at high prices or wait for the price to fall before laying out long positions. Pay attention to the support level around 77,000 - 79,000 and the resistance level around 81,000 - 83,000 for Shanghai copper. For London copper, pay attention to the support level around 9,600 - 9,900 and the resistance level around 10,200 - 10,500. For US copper, pay attention to the support level around 4.3 - 4.5 and the resistance level around 4.8 - 5.0 [2]