OREANDA-NEWS. The official purchase prices at cash calculations on the London Metal Exchange on April 3, 2007 made $2 800 for a ton of aluminium, $7 280 for a ton of copper, $1 978 for a ton of lead, $49 750 for a ton of nickel, $14 045 for a ton of tin, $3 224,5 for a ton of zinc.

Three-month purchase contracts were made at the price of $2 815 for a ton of aluminium, $7 169 for a ton of copper, $1 964,5 for a ton of lead, $47 600 for a ton of nickel, $13 905 for a ton of tin, $3 230 for a ton of zinc.