Aluminium prices edged up by 0.25 per cent to Rs 138.85 per kg in futures trade Tuesday after speculators built up fresh positions amid an uptick in demand at the spot market.

On the Multi Commodity Exchange , aluminium contracts for July delivery rose by 35 paise, or 0.25 per cent, to Rs 138.85 per kg in a business turnover of 486 lots.

Similarly, the metal contracts for August delivery traded up by 5 paise, or 0.04 per cent, to Rs 141.60 per kg in a business turnover of 2,248 lots. Analysts said fresh positions created by traders on positive demand from consuming industries mainly led to rise in aluminium prices.