Traders and clerks work at the London Metal Exchange

The base metals prices on the London Metal Exchange (LME) closed mixed on Wednesday.

Some metals prices dropped as the weaker-than-expected data from the United States.

U.S. consumer confidence index for July came in at 90.9, down from 99.8 in June and missing expectations, according to the New York-based research group Conference Board Tuesday.

However, copper price rose due to supply concern.

A strike at Chile's state-owned miner Codelco forced its second largest copper mine to halt operation. Besides, Freeport-McMoran company said it would consider copper production cuts as part of a review due to low prices.

The three-month unofficial copper price increased 11.5 U.S. dollars, or 0.22 percent, to 5,316 dollars per tonne.

The three-month unofficial aluminium price increased 1 dollar, or 0.06 percent, to 1,662 dollars a tonne.

The three-month unofficial lead price lost 10 dollars, or 0.58 percent, to 1,724 dollars a tonne.

Besides, the three-month unofficial zinc price lost 17 dollars, or 0.86 percent, to 1,967 dollars a tonne.

The three-month unofficial nickel price lost 40 dollars, or 0.35 percent, to 11,245 dollars a tonne.

The three-month unofficial tin price increased 150 dollars, or 0.93 percent, to 16,275 dollars a tonne. Enditem