商品日报（12月29日）：白银碳酸锂冲高回落 铂钯双双跌停

Group 1: Commodity Market Overview - The domestic commodity futures market showed mixed results on December 29, with iron ore futures rising over 2%, while platinum and palladium contracts hit the daily limit down with a 10% decline [1][4] - The China Securities Commodity Futures Price Index closed at 1591.87 points, down 1.09 points or 0.07% from the previous trading day [1] Group 2: Iron Ore Market Insights - Iron ore futures continued to rise, driven by winter storage and replenishment expectations, with the main contract increasing by 2.58% [2] - Current iron ore supply remains high, and while there is upward pressure from downstream demand, the market is also influenced by high supply from Brazil [2] - The late timing of the Spring Festival has delayed market replenishment, providing some support for iron ore prices in the short term [2] Group 3: Corn Market Dynamics - Corn futures increased by 1.86%, reaching a two-week high, supported by heavy snowfall in Northeast China, which slowed port collection and increased price support from grain holders [3] - The market is optimistic about the future price of Northeast corn, with a focus on the pace of grain sales and potential policy impacts on grain supply [3] Group 4: Precious Metals Volatility - The precious metals market experienced significant volatility, with platinum and palladium contracts dropping to the daily limit down of 10% [4] - Silver prices showed a large intraday fluctuation, with a rise of 0.51% despite a drop from earlier highs, indicating a complex interplay of macroeconomic factors and market sentiment [3][4] Group 5: Lithium Carbonate Market Trends - Lithium carbonate futures hit the daily limit down, closing with a 7.89% decline, as market sentiment cooled and fundamental expectations weakened [5] - Despite the price drop, lithium carbonate production remains high, indicating strong supply-side resilience, while demand from the energy storage sector continues to improve [5]