LONDON, Feb 14, 2011 (Dow Jones Commodities News via Comtex) -- U.S. domestic production of mined copper in September was 89,800 metric tons, down 4.9% from 94,400 tons in August and down around 1% from 90,700 tons during the same period the year before, according Monday to the U.S. Geological Survey.
Mine production for the first nine months of 2010 was 822,000 tons, 8% lower than during the same period of 2009.
Production of electrolytic refined copper was slightly lower on the month in September at 90,800 tons from 91,000 tons previously.
Consumption of refined copper in September was unchanged at 151,000 tons, but rose 3% above 143,000 tons in September 2009. Year-to-date consumption through September 2010 was about 6% higher than for the first nine months of 2009 at 1.34 million tons.