OREANDA-NEWS. The official purchase prices at cash calculations on the London Metal Exchange on April 18, 2007 made $2 835 for a ton of aluminium, $8 052 for a ton of copper, $1 995 for a ton of lead, $50 045 for a ton of nickel, $14 395 for a ton of tin, $3 685 for a ton of zinc.

Three-month purchase contracts were made at the price of $2 878 for a ton of aluminium, $7 960 for a ton of copper, $1 980 for a ton of lead, $47 650 for a ton of nickel, $14 175 for a ton of tin, $3 692 for a ton of zinc.