TOKYO, June 25 (Reuters) - Some Japanese aluminium

buyers have agreed to pay global producers a premium of $108 per

metric ton over the benchmark price for shipments from July to

September, down 41% from this quarter, four sources directly

involved in the talks said.

The figure is down from the $182 per ton paid in April to

June and marks a second consecutive quarterly decline. But it is

below initial offers of $122 to $145 per ton made by global

producers.

Japan is a major Asian importer of the light metal and the

premiums for primary metal shipments it agrees to

pay each quarter over the benchmark London Metal Exchange (LME)

cash price set the benchmark for the region.