OREANDA-NEWS. The official purchase prices at cash calculations on the London Metal Exchange on April 24, 2007 made $2 840 for a ton of aluminium, $8 099 for a ton of copper, $2 014 for a ton of lead, $51 800 for a ton of nickel, $13 995 for a ton of tin, $3 810 for a ton of zinc.

Three-month purchase contracts were made at the price of $2 873 for a ton of aluminium, $8 069 for a ton of copper, $2 023 for a ton of lead, $49 950 for a ton of nickel, $13 950 for a ton of tin, $3 820 for a ton of zinc.