Copper prices declined by 0.10 per cent to Rs 451.90 per kg in futures trade today as participants were indulged in trimming positions to book profits.
Besides, muted spot demand from consuming industries and subdued global cues fuelled the downtrend.
At the Multi Commodity Exchange, copper for delivery in June shed 45 paise, or 0.10 per cent, to Rs 451.90 per kg in a business turnover of 16 lots.
Similarly, the metal for delivery in April was trading lower by 25 paise, or 0.06 per cent, to Rs 447.10 per kg in 473 lots.
Analysts attributed the fall in copper futures to profit-booking by participants amid muted demand at the domestic spot markets.