OREANDA-NEWS. The official purchase prices at cash calculations on the London Metal Exchange on April 26, 2007 made $2 795 for a ton of aluminium, $7 847 for a ton of copper, $1 950 for a ton of lead, $48 600 for a ton of nickel, $13 545 for a ton of tin, $3 685 for a ton of zinc.

Three-month purchase contracts were made at the price of $2 820 for a ton of aluminium, $7 815 for a ton of copper, $1 973for a ton of lead, $46 895 for a ton of nickel, $13 475 for a ton of tin, $3 730 for a ton of zinc.