[SMM Analysis: Finished Product Inventories of Copper Foil Declined in March, While Industry Operating Rates Continued to Rise]According to SMM, the operating rate of copper foil enterprises in March 2025 was 71.82%, up 4.17 percentage points MoM and 11.38 percentage points YoY. Among them, the operating rate of large enterprises was 75.20%, medium-sized enterprises was 55.35%, and small enterprises was 70.18%...