沪铜日评20250912：美联储降息预期和传统消费旺季支撑铜价-20250912

Group 1: Report Investment Rating - Not provided Group 2: Core Viewpoints - Fed's September rate - cut expectation has risen, and the traditional consumption peak season has led to an initial improvement in new orders for enameled copper wire, which may cause the Shanghai copper price to fluctuate strongly [2] Group 3: Summary by Relevant Catalogs 1. Market Data - Shanghai Copper Futures Active Contract: On September 11, 2025, the closing price was 80,130, up 340 from the previous day; the trading volume was 64,849 lots, down 9,691 lots; the open interest was 174,453 lots, up 2,541 lots; the inventory was 20,028 tons, up 902 tons; the Shanghai copper basis was 45, up 90 [2] - London Copper: On September 11, 2025, the LME 3 - month copper futures closing price (electronic trading) was 10,051.5, up 38.5; the LME copper futures 0 - 3 - month contract spread was - 61.54, down 4.93; the LME copper futures 3 - 15 - month contract spread was - 171.32, down 10.28; the Shanghai - London copper price ratio was 7.9719, up slightly [2] - COMEX Copper: On September 11, 2025, the copper futures active contract closing price was 4.671, up 0.1; the total inventory was 309,834, up 2,138 [2] 2. Important Information - As of September 11, the weekly inventory of copper in mainstream regions in China decreased by 0.26 million tons to 14.43 million tons. Due to delivery demand, the in - transit inventory reached a record high. SMM expects that with continuous arrival of imported goods and weak demand, copper inventory will increase slightly [2] - In 2025, the investment of the State Grid continued to be booming, with a planned total investment of about 825 billion yuan. Stable orders from the State Grid will provide continuous demand support, and the acceleration of project progress in the second half of the year will ensure the stable operation of the wire and cable industry, offsetting the weak demand from downstream industries such as construction [2] 3. Supply - Demand Logic - Supply: Freeport's Indonesian mine had an accident and suspended mining, and there were disruptions in copper mine production at home and abroad. The China copper concentrate import index was negative but higher than last week, leading to a tight supply - demand expectation for domestic copper concentrates, and a decline in domestic processing fees for blister copper or anode plates. The maintenance capacity of copper smelters in September increased month - on - month [2] - Demand: New orders for copper enameled wire showed an initial month - on - month improvement, but high copper prices suppressed downstream purchasing willingness [2] - Inventory: The social inventory of Chinese electrolytic copper decreased slightly compared with last week, but delivery demand increased the in - transit inventory; the inventory of LME electrolytic copper decreased compared with last week, and the inventory of COMEX copper increased [2] 4. Trading Strategy - It is recommended to mainly place long orders after the price drops. Pay attention to the support level around 77,000 - 78,000 and the resistance level around 81,000 - 83,000 for Shanghai copper, the support level around 9,800 - 10,000 and the resistance level around 10,200 - 10,500 for London copper, the support level around 4.0 - 4.3 and the resistance level around 4.7 - 5.0 for US copper [2]