另从需求端看，虽然后期内需预计向好，但外需好转力度较为有限。 2025年国内PP市场呈现单边走势，重心一路下行。卓创资讯数据显示，以华东PP拉丝为例，8月迄今的 均价在7035元／吨，环比上月走低0.92%，创下年内新低。 分析来看，虽8月临近月底有宏观消息释放支撑，但供需基本面仍表现偏弱，尤其下游新单跟进未见好 转，叠加成品库存去化缓慢，导致下游入市采购积极性受阻，市场上行阻力加大，重心再度下滑。 展望后市，传统需求旺季"金九"将至，PP市场需求能否好转，以及市场拐点何时能够到来？ 从PP基本面上分析，后期供应端预计增加，令市场上行阻力加大。这主要体现在，一方面新增产能面 临投放。据卓创资讯调研，目前宁波大榭二期二线45万吨装置已产出合格品，同时二期一线45万吨装 置，计划9月中旬投放。叠加10月中旬广西石化40万吨二期装置计划释放产能，新增产能对后期PP市场 供应冲击预期较强。 另一方面，在既有装置检修方面，上半年PP检修装置集中，但目前来看，存量装置检修力度有所减 弱，新增的计划内检修也有减少的趋势。尤其多数企业在结束上半年大修计划后，下半年多平稳运行。 往后看，随着后续天气转冷，后期装置整体检修力度预 ...

周内开工继续抬升，氧化铝生产利润较好刺激厂家恢复生产，周度库存继续累增。 机构观点汇总： 光大期货：氧化铝基本面支撑减弱，但山西矿权事件、外矿价格坚挺以及氧化铝现货相对抗跌下，短期 限制深跌空间，空头继续压盘仍需更多逻辑支撑。临近金九旺季，资金情绪可能转为谨慎、压盘态势或 趋缓，氧化铝跌幅收敛。 国投安信期货：氧化铝运行产能处于历史高位，行业库存和上期所仓单均持续上升。供应过剩逐渐显 现，各地现货指数阴跌，氧化铝偏弱震荡，3000元位置具备支撑。 本周（8月18日-8月22日）市场上看，氧化铝期货周内开盘报3212元/吨，最高触及3237元/吨，最低下探 至3081元/吨，周度涨跌幅达-2.15%。 消息面回顾： 周四，现货氧化铝全国均价3263元/吨，持平，升水149元/吨。澳洲氧化铝F0B价格370美元/吨，跌1美 元/吨，理论进口窗口关闭。 8月21日，上期所氧化铝期货仓单75953吨，环比上个交易日增加903吨。 截至2025年8月22日当周，氧化铝期货主力合约收于3138元/吨，周K线收阳，持仓量环比上周增持9466 手。 ...

Research Views Copper - Overnight copper prices fluctuated strongly, with the domestic spot import window remaining open. The Fed's July meeting minutes showed internal differences, and the market is awaiting Powell's speech at the Jackson Hole "Global Central Bank Annual Meeting" for signals on the Fed's future interest rate cuts. Domestically, measures are being taken to stabilize the real estate market. LME and Comex inventories increased, while SHFE and BC copper inventories decreased. Seasonal demand is expected to pick up, and the market is in a balanced state awaiting external factors [1]. Aluminum - Alumina, Shanghai aluminum, and aluminum alloy all fluctuated strongly. Alumina's fundamental support weakened, but short - term deep declines are limited. As the "Golden September" peak season approaches, the pressure on the market may ease. Aluminum ingot casting volume increased, and some terminal sectors are stocking up in advance, resulting in an unsmooth inventory build - up. The electrolytic aluminum market is in a time - for - space mode [1][2]. Nickel - LME nickel fell 0.1%, while Shanghai nickel rose 0.15%. LME inventory increased, and domestic SHFE warehouse receipts decreased. Nickel ore premiums declined slightly, and stainless steel raw material prices were divided. The overall fundamentals changed little, and the market is in a volatile state [2]. Daily Data Monitoring Copper - The price of flat - water copper decreased by 340 yuan/ton, and the premium decreased by 15 yuan/ton. LME inventory increased by 1200 tons, and SHFE warehouse receipts decreased by 275 tons. The total weekly inventory increased by 4428 tons, and the social inventory decreased by 0.1 million tons [3]. Lead - The average price of 1 lead decreased by 100 yuan/ton, and the premium increased by 10 yuan/ton. LME inventory decreased by 1850 tons, and SHFE inventory increased by 2510 tons [3]. Aluminum - The Wuxi and Nanhai aluminum prices decreased, and the spot premium increased by 20 yuan/ton. LME inventory remained unchanged, and SHFE warehouse receipts decreased by 2529 tons. The weekly total inventory increased by 7039 tons, and the alumina social inventory increased by 0.4 million tons [4]. Nickel - The price of Jinchuan nickel decreased by 725 yuan/ton. LME inventory increased by 18 tons, and SHFE warehouse receipts decreased by 282 tons. The weekly nickel inventory increased by 768 tons, and the social inventory increased by 1319 tons [4]. Zinc - The主力 settlement price decreased by 0.2%. LME inventory decreased by 950 tons, and the weekly social inventory increased by 0.49 million tons [5]. Tin - The主力 settlement price increased by 0.7%. SHFE inventory decreased by 13 tons, and LME inventory increased by 85 tons [5]. Chart Analysis Spot Premium - Charts show the historical trends of spot premiums for copper, aluminum, nickel, zinc, lead, and tin from 2019 - 2025 [7][9][13]. SHFE Near - Far Month Spread - Charts display the historical trends of the near - far month spreads for copper, aluminum, nickel, zinc, lead, and tin from 2020 - 2025 [14][16][18]. LME Inventory - Charts present the historical trends of LME inventories for copper, aluminum, nickel, zinc, lead, and tin from 2019 - 2025 [20][22][24]. SHFE Inventory - Charts show the historical trends of SHFE inventories for copper, aluminum, nickel, zinc, lead, and tin from 2019 - 2025 [27][29][31]. Social Inventory - Charts illustrate the historical trends of social inventories for copper, aluminum, nickel, zinc, stainless steel, and 300 - series stainless steel from 2019 - 2025 [33][35][37]. Smelting Profit - Charts show the historical trends of copper concentrate index, rough copper processing fee, aluminum smelting profit, nickel - iron smelting cost, zinc smelting profit, and stainless steel 304 smelting profit margin from 2019 - 2025 [40][42][44]. Team Introduction - The research team consists of Zhan Dapeng (Director of Non - ferrous Research at Everbright Futures Research Institute), Wang Heng (Non - ferrous researcher focusing on aluminum and silicon), and Zhu Xi (Non - ferrous researcher focusing on lithium and nickel) [47][48].

Group 1: Report Industry Investment Rating - No relevant content provided Group 2: Core Viewpoints of the Report - Copper: Overnight copper fluctuated higher. US inflation pressure is controllable, strengthening the expectation of a 50 - basis - point interest rate cut in September. There are differences in views on the future of US copper. The domestic "Golden September" peak - season expectation and anti - involution policy expectations support prices, and copper maintains a relative balance between bulls and bears [1]. - Aluminum: Alumina, Shanghai aluminum, and aluminum alloy all fluctuated strongly. In August, the profit in the aluminum industry shifted from upstream to downstream. There are signs of a turn in the supply - demand of electrolytic aluminum, and the aluminum price is in a stage of trading time for space with an expectation of continued recovery. Aluminum alloy is in a tug - of - war between cost and demand, waiting for the peak - season guidance [1][2]. - Nickel: Overnight LME nickel and Shanghai nickel both rose. The overall fundamentals changed little and showed a volatile operation [2]. Group 3: Summary by Relevant Catalogs 1. Research Views - **Copper**: The US 7 - month CPI rose 2.7% year - on - year, core CPI reached 3.1%. The market has different views on US copper due to over - inventory. Domestic factors support prices, and copper is in a balanced state [1]. - **Aluminum**: AO2509 closed at 3287 yuan/ton with a 0.83% increase, AL2509 at 20800 yuan/ton with a 0.68% increase, and AD2511 at 20200 yuan/ton with a 0.55% increase. The SMM alumina price dropped to 3248 yuan/ton. There are changes in the supply - demand and profit distribution of the aluminum industry [1][2]. - **Nickel**: LME nickel rose 0.23% to 15360 dollars/ton, Shanghai nickel rose 0.2% to 122870 yuan/ton. LME inventory increased by 450 tons, and domestic SHFE warehouse receipts decreased by 30 tons. The overall fundamentals are stable [2]. 2. Daily Data Monitoring - **Aluminum**: The spot premium changed from - 50 yuan/ton to - 30 yuan/ton. The total inventory decreased by 3913 tons, and the alumina inventory increased by 3.9 tons [5]. - **Nickel**: The price of Jinchuan nickel increased by 600 yuan/ton. The total nickel inventory increased by 444 tons, and the stainless - steel warehouse receipts decreased by 253 tons [5]. - **Zinc**: The main settlement price decreased by 0.1%, and the social inventory increased by 0.77 tons [6]. - **Tin**: The main settlement price increased by 0.9%, and the LME0 - 3 premium increased by 22.16 dollars/ton [6]. 3. Chart Analysis - **Spot Premium**: Charts show the historical trends of spot premiums for copper, aluminum, nickel, zinc, lead, and tin [8][10][13]. - **SHFE Near - Far Month Spread**: Charts display the historical trends of near - far month spreads for copper, aluminum, nickel, zinc, lead, and tin [16][20][21]. - **LME Inventory**: Charts present the historical trends of LME inventories for copper, aluminum, nickel, zinc, lead, and tin [23][25][27]. - **SHFE Inventory**: Charts show the historical trends of SHFE inventories for copper, aluminum, nickel, zinc, lead, and tin [30][32][34]. - **Social Inventory**: Charts display the historical trends of social inventories for copper, aluminum, nickel, zinc, stainless steel, and 300 - series stainless steel [36][38][40]. - **Smelting Profit**: Charts present the historical trends of the copper concentrate index, rough copper processing fee, aluminum smelting profit, nickel - iron smelting cost, zinc smelting profit, and stainless - steel 304 smelting profit rate [43][45][47]. Group 4: Team Introduction - Zhan Dapeng: The current director of non - ferrous research at Everbright Futures Research Institute, with over a decade of commodity research experience [50]. - Wang Heng: An analyst focusing on aluminum and silicon, providing timely policy interpretations and writing in - depth reports [50]. - Zhu Xi: An analyst focusing on lithium and nickel, focusing on the integration of non - ferrous metals and new energy [51].