OREANDA-NEWS. The official purchase prices at cash calculations on the London Metal Exchange on April 13, 2007 made $2 805 for a ton of aluminium, $7 800 for a ton of copper, $2 024,5 for a ton of lead, $49 800 for a ton of nickel, $14 345 for a ton of tin, $3 505 for a ton of zinc.

Three-month purchase contracts were made at the price of $2 830 for a ton of aluminium, $7 745 for a ton of copper, $2 005 for a ton of lead, $47 200 for a ton of nickel, $14 250 for a ton of tin, $3 524,5 for a ton of zinc.