【期货热点追踪】伦铜、上期所铜期货价格齐跌，铜库存连续四天上升，特朗普对各国贸易政策即将公布，后续铜价走势如何？

Core Insights - Copper prices for both London and Shanghai futures have declined, indicating a bearish trend in the market [1] - Copper inventories have increased for four consecutive days, suggesting a potential oversupply situation [1] - Upcoming announcements from Trump regarding trade policies may significantly impact future copper price movements [1] Group 1 - The decline in copper prices reflects broader market concerns and potential shifts in demand [1] - The continuous rise in copper inventories could lead to further price pressure if the trend persists [1] - The market is closely monitoring trade policy developments, which could introduce volatility in copper prices [1]