21.   Prices also rose after copper stockpile at the London Metal Exchange fell for the sixth straight day, a sign of healthy demand.

22.   Prices on the London Metal Exchange were mostly higher overnight, helped by a smaller-than-expected rise in copper stockpiles.

23.   Recent London Metal Exchange warehouse reports have shown copper stockpiles in the U.S. either unchanged, or declining, while copper supplies in European warehouses rise.

24.   Prices rose after copper stockpiles fell in both the U.S. and Europe, signaling a rise in demand, analysts said.

25.   Rising copper stockpiles in warehouses monitored by the London Metal Exchange also pushed prices lower.

26.   Still, demand from the construction industry contributed to a decline in copper stockpiles.

27.   Still, a prolonged strike at Escondida could send copper stockpiles, already about half of year-ago levels, dangerously low, traders said.

28.   Strong demand from manufacturers in the U.S. and Europe have kept copper stockpiles lean this year.

29.   Steady demand in the U.S. and Asia kept copper stockpiles lean this year.

30.   Still, robust demand during the first quarter of the year pulled copper stockpiles lower.