Copper fell toward $6.4 per pound on Wednesday, hitting its lowest level in a month as rising oil prices and global bond yields kept inflationary risks and interest rate concerns in focus, weighing on the demand outlook. Oil prices advanced for a third consecutive session amid escalating hostilities between the US and Iran, complicating efforts to reopen the Strait of Hormuz. Global bond yields climbed on mounting inflationary pressures and worsening fiscal conditions, reinforcing expectations that major central banks may need to raise interest rates soon. Higher borrowing costs could eventually slow global economic growth, dampening demand for industrial metals such as copper. Still, tight global copper supply offered some support, with top producer Chile reporting a 9.4% decline in output in July. Traders also continued redirecting copper shipments toward the US ahead of potential new import tariffs, with the White House yet to make a decision on the issue.