Base metals regained strength to trade Rs 2 per kg higher in the local non-ferrous metals market today largely on the back of a firming global trend. Sentiment turned better as copper gained in global markets after the Bank of Japan expanded its asset-purchase programme,following measures from the US Federal Reserve to stimulate growth. Meanwhile,copper gained 0.9 per cent to USD 8,390 a tonne on the London Metal Exchange. In the national capital,zinc ingot and nickel (4x4) recovered by Rs 2 each to Rs 107-111 and Rs 1,027-1,030,while copper mixed scrap,lead ingot and lead imported were enquired higher by similar margin to Rs 393 and Rs 133 and Rs 131 per kg,respectively. The following are metal rates per kg: Zinc ingot 107-111, nickel plate (4x4) 1,027-1,030,gun metal scrap 227,bell metal scrap 229,copper mixed scrap 393,chadri deshi 285. Lead ingot 133,lead imported 131,aluminium ingots 127,sheet cutting 128,aluminium wire scrap 134 and aluminium utensils scrap 127.