有色金属基础周报：国内数据向好，美联储降息希望增大色金属整体偏强震荡-20250811

Report Industry Investment Rating - Not provided in the given content Core Viewpoints of the Report - China's economic data is positive, and there are hopes of a Fed rate cut, leading to a generally strong and volatile trend in non - ferrous metals [1][2] - Different non - ferrous metals have different market performances. For example, copper is expected to maintain a high - level volatile trend, aluminum is in an upward trend with short - term volatility, and zinc has limited upward momentum [2] Summary by Relevant Catalogs Main Variety Views Copper - China's positive economic data, Fed rate - cut expectations, and low inventory provide high - level support for copper prices, but it is in the off - season, and short - term upward driving force is insufficient. It is expected to maintain a volatile trend in the range of 78,000 - 79,500 yuan/ton. Suggested operations are range trading or waiting and seeing [2] Aluminum - The rainy season in Guinea affects bauxite mining and transportation, supporting ore prices. Alumina production capacity and inventory are both increasing. Aluminum prices are in an upward trend but with short - term volatility. It is recommended to go long on dips in August [2] Zinc - Zinc concentrate supply is loose, and domestic demand is weak in the off - season. Zinc prices are expected to have limited upward momentum, with the main contract operating in the range of 22,000 - 23,000 yuan/ton. Suggested operation is range trading [2] Lead - LME and Comex lead inventories have decreased, and domestic supply and demand are basically balanced. Lead prices are expected to maintain a volatile trend, and it is recommended to go long on dips in the range of 16,500 - 17,200 yuan/ton [2] Nickel - In the medium and long term, the nickel industry has an oversupply situation. It is recommended to hold short positions moderately on rallies, with the main contract operating in the range of 118,000 - 124,000 yuan/ton. Stainless steel is recommended for range trading in the range of 12,600 - 13,100 yuan/ton [3] Tin - In the off - season, demand is weak, and prices are volatile. Tin ore supply improvement is limited, and it is recommended for range trading, with the reference range for the Shanghai Tin 09 contract being 255,000 - 275,000 yuan/ton [3] Industrial Silicon - Production and inventory data show mixed trends. It is expected to be weakly volatile, and it is recommended to wait and see. Polysilicon has high risks, and it is also recommended to wait and see [3] Carbonate Lithium - Due to mine - end production disruptions, prices are strong. It is expected that short - term prices will be supported, and it is recommended for cautious trading [3] Non - ferrous Metal Inventory - Different non - ferrous metals have different inventory trends. For example, copper's global inventory has increased week - on - week, while tin's global inventory has decreased week - on - week [7] Macro - economic Data - China's July service industry PMI continued to expand, and exports increased year - on - year. The US service industry PMI was close to stagnation in July [9][11][14] Market Trends and Key Data Tracking - Each non - ferrous metal has corresponding price trend charts and key data tracking, such as copper's LME copper (spot/three - month) premium and discount, Shanghai copper's inter - period spread curve, etc. [30][31]