库存累积叠加关税预期推迟，铜价短期或迎来高位震荡

Group 1: Lithium Market - Lithium battery demand remains strong despite the off-season, with a reversal in supply and demand for lithium carbonate, leading to an upward price trend [4] - This week, lithium carbonate prices increased by 12.86% to 158,000 CNY/ton, while spodumene concentrate rose by 5.32% to 1,980 USD/ton [4] - The main futures contract for lithium carbonate rose by 1.94% to 146,200 CNY/ton, although there was a limit down on Friday due to increased regulatory scrutiny and profit-taking by speculative funds [4] Group 2: Copper Market - Copper prices may experience high volatility in the short term due to inventory accumulation and delayed tariff expectations, with LME copper down by 0.50% [2] - Significant inventory increases were noted, with LME copper inventory rising by 3.31% to 144,000 tons, and domestic electrolytic copper social inventory up by 17.20% to 321,000 tons [2] - The operating rate for electrolytic copper rods increased by 9.65 percentage points to 57.47%, indicating a potential demand recovery [2] Group 3: Aluminum Market - Aluminum prices are expected to face high volatility due to inventory accumulation, with domestic aluminum inventory increasing by 29.24% to 185,900 tons [3] - The price of alumina fell by 1.12% to 2,655 CNY/ton, while electrolytic aluminum prices rose by 0.83% to 24,200 CNY/ton [3] - The demand for aluminum may increase due to the "aluminum replacing copper" trend in the home appliance sector, driven by high copper prices [3] Group 4: Cobalt Market - The cobalt raw material supply remains tight, with cobalt prices expected to continue rising, as MB cobalt increased by 0.59% to 25.68 USD/pound [5] - The Democratic Republic of Congo has lifted its cobalt export ban, implementing a quota system instead, which may affect the timing of raw material availability in the domestic market [5] - The structural tightness in cobalt raw materials is expected to persist, supporting upward price momentum [5]