OREANDA-NEWS. The official purchase prices at cash calculations on the London Metal Exchange on April 5, 2007 made $2 811 for a ton of aluminium, $7 464 for a ton of copper, $2 020 for a ton of lead, $52 370 for a ton of nickel, $14 150 for a ton of tin, $3 401 for a ton of zinc.

Three-month purchase contracts were made at the price of $2 840 for a ton of aluminium, $7 410 for a ton of copper, $1 985 for a ton of lead, $49 500 for a ton of nickel, $14 125 for a ton of tin, $3 400 for a ton of zinc.