SAN FRANCISCO (MarketWatch) -- Copper and tin have "the greatest price upside" among base metals, analysts at Barclays Capital said in a note to clients Thursday. Both metals face mine supply constraints. In the case of copper, robust demand for the metal over the summer has resulted in a counter-seasonal decline in inventories, Barclays said. The bank calls for copper prices to average $8,000 per metric ton in the fourth quarter of this year at the London Metal Exchange, which would translate into roughly $3.60 a pound. Copper for December delivery trading on the New York Mercantile Exchange added 3 cents, or 0.8%, to $3.49 per pound.

Source: http://www.marketwatch.com/story/copper-tin-have-greatest-price-upside-barclays-2010-09-16