OREANDA-NEWS. The official purchase prices at cash calculations on the London Metal Exchange on March 30, 2007 made $2 791 for a ton of aluminium, $6 939 for a ton of copper, $1 935 for a ton of lead, $45 400 for a ton of nickel, $13 650 for a ton of tin, $3 279,5 for a ton of zinc.

Three-month purchase contracts were made at the price of $2 803 for a ton of aluminium, $6 895,5 for a ton of copper, $1 925 for a ton of lead, $43 795 for a ton of nickel, $13 650 for a ton of tin, $3 285 for a ton of zinc.