The benchmark FTSE 100 Index added 10.5, or 0.2 percent, to
6364 at 12:30 p.m. in London. The FTSE All-Share Index increased
4.5, or 0.1 percent, to 3297.72. Ireland's ISEQ Index was little
changed at 9677.94.
BHP Billiton, the world's largest mining company, advanced
1.8 percent to 1,068 pence as tin, copper, nickel, zinc, aluminum
and lead all climbed in London.
Tin rose for a fourth day on concern that an Indonesian
government plan to tighten export regulations may continue to
constrain production. The base metal added 0.8 percent, while
copper gained 2 percent.
Antofagasta, the owner of three copper mines in Chile,
gained 1.8 percent to 470.5 pence. Xstrata, the world's fourth-
largest copper producer, increased 1.4 percent to 2,389 pence.