Group 1: Report Industry Investment Rating - Not mentioned in the provided content Group 2: Core Viewpoints of the Report - The fundamentals of the non - ferrous metals sector are strengthening. It is recommended to have more long - positions in copper and aluminum and short - positions in zinc, nickel, and tin [173][202] - In the second half of 2025, copper and aluminum are expected to be relatively strong, lead to fluctuate, and zinc, nickel, and tin to be weak [173] Group 3: Summary by Directory 01. Review of the Non - Ferrous Metals Sector in the First Half of the Year - Since the beginning of 2025, the trends of CRB metal and the composite index are similar, with narrowing volatility. The domestic and international prices of non - ferrous and precious metals are also similar. After adjusting for exchange rates, the prices of LME copper and SHFE copper show the same trend [7] - The price fluctuations of non - ferrous and precious metals vary. As of June 20, the order from strong to weak is: gold > silver > tin > copper > lead > aluminum > nickel > zinc, with gold rising by 28% and zinc falling by 11.38% [7] - Macroeconomic factors still have a strong impact on prices. The consumption of non - ferrous metals is highly positively correlated with the economic cycle [14][26] - The relationship between overseas inventories of non - ferrous metals and prices is negative. Different metals show different price and inventory change characteristics [34] - There are correlations between the prices of mining ends and the overall metal prices, as well as between processing fees and prices for different metals [60] 02. Outlook on Allocation Strategies - Volatility indicators of gold, aluminum, tin, etc. provide trading opportunities. Different metals have different volatility trends, such as the volatility of COMEX gold falling but remaining at a high level, and the volatility of COMEX silver rising rapidly [74][86] - Through term spreads, it is found that gold and silver may follow macro - logic, while copper, aluminum and other varieties follow fundamental logic. Different metals have different price change rates, positive - spread annualized returns, and logical points [92] - The uncertainty of the US economy and tariff policies has not strongly influenced prices yet. The US economic data shows mixed signals, and tariff policies affect the export of non - ferrous metal - related products [95][107] - The consumption potential of South Asia, Southeast Asia and other regions is being released. Although affected by US tariff policies, some countries in these regions are implementing economic stimulus measures, and the copper consumption in some countries is increasing [115][123] - The domestic demand for non - ferrous metals is distributed in construction, power, transportation, home appliances, etc. Different metals have different end - use distributions [124][125] - In terms of power grid investment, the policy supports the development of the power grid, with increasing investment growth rates. Power investment is inclined towards the power grid, especially the distribution network [127][132] - In terms of durable goods consumption, policies support home appliance replacement and new - energy vehicle sales. The sales of traditional fuel vehicles are declining, while the sales of air - conditioners are expected to maintain growth [139][147] - The real estate market in China is showing signs of stabilization. Although still in a downward trend, the decline rates of investment, construction area, and completion area are narrowing [148] 03. Conclusions and Recommendations - The fundamentals of the non - ferrous metals sector are strengthening. It is recommended to have more long - positions in copper and aluminum and short - positions in zinc, nickel, and tin [173][202] - In the second half of 2025, copper and aluminum are expected to be relatively strong, lead to fluctuate, and zinc, nickel, and tin to be weak. Specific trading ideas and driving logics are provided for each metal [173] - The simulated yield curves of non - ferrous metal prices show different trends for different metals. Copper and aluminum are in a large Back structure, which is beneficial for long - position roll - overs [174][176] - For copper, in 2025, the global copper mine supply shortage is expected to intensify, and the refined copper supply may have a shortage in the second half of the year. The market trading atmosphere is still bullish, and inventories are at a relatively low level [189][192]