Copper futures ended higher on Wednesday, despite customs data showing a sharp drop in imports by China as the country's winter anti-pollution program cuts down refinery and blast furnace production. China’s unwrought copper imports fell in October from a month earlier to their lowest since April as prices soared to their highest in more than three years, while concentrate arrivals also slipped.

Copper futures for December delivery rose 0.3 percent to settle at $3.0995 a pound on the Comex metals division of New York Mercantile Exchange. While, copper on the London Metal Exchange ended up 0.4 percent at $6,855 a metric ton.

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