OREANDA-NEWS. The official purchase prices at cash calculations on the London Metal Exchange on March 22, 2007 made $2 772.5 for a ton of aluminium, $6 805 for a ton of copper, $1 939 for a ton of lead, $47 600 for a ton of nickel, $14 100 for a ton of tin, $3 160,5 for a ton of zinc.

Three-month purchase contracts were made at the price of $2 778 for a ton of aluminium, $6 750 for a ton of copper, $1 910 for a ton of lead, $44 600 for a ton of nickel, $14 005 for a ton of tin, $3 169,5 for a ton of zinc.