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The copper price has fallen to its lowest level in four months, due to the easing of demand from China and the end of the supply disruptions. Traders have also bet against the red metal.
The London Metal Exchange's three-month copper contracts closed Friday at $8.275 per metric ton. This was their lowest settlement in over a year, and down more than 12 percent from the peak they reached late that month.
In recent months, physical supply and demand factors combined with financial flows have weighed on prices:
Copper Continuous Contract