OREANDA-NEWS. The official purchase prices at cash calculations on the London Metal Exchange on March 20, 2007 made $2 825 for a ton of aluminium, $6 695 for a ton of copper, $1 949,5 for a ton of lead, $49 350 for a ton of nickel, $13 995 for a ton of tin, $3 235 for a ton of zinc.

Three-month purchase contracts were made at the price of $2 825 for a ton of aluminium, $6 645 for a ton of copper, $1 921 for a ton of lead, $46 000 for a ton of nickel, $13 900 for a ton of tin, $3 244 for a ton of zinc.