At the Multi Commodity Exchange, copper for delivery in the current month declined by Rs 1.20, or 0.27 per cent, to Rs 443.15 per kg in a business turnover of 603 lots.
On similar lines, the metal for delivery in February next year was trading lower by 95 paise, or 0.21 per cent, to Rs 449.30 per kg in 37 lots.
Analysts said offloading of positions by traders at the current levels amid a weak trend in the domestic spot market and overseas influenced the prices.