The base metal prices on the London Metal Exchange (LME) closed higher mostly on Wednesday, lifting by weaker U.S. dollars.
The U.S. dollar exchange rate go down due to poor U.S. economic data.
U.S. real gross domestic product (GDP) increased at an annual rate of 0.2 percent in the first quarter this year, according to an advanced estimate released by the U.S. Commerce Department on Wednesday.
The first quarter GDP showed a sharp slowdown from the fourth quarter's 2.2 percent pace and below expectations.
The three-month unofficial copper price increased 28.5 U.S. dollars, or 0.47 percent, to 6,131 dollars per tonne.
The three-month unofficial aluminium price increased 23 dollars, or 1.23 percent, to 1,889 dollars a tonne.
The three-month unofficial lead price lost 6 dollars, or 0.29 percent, to 2,085 dollars a tonne.
Besides, the three-month unofficial zinc price increased 3 dollars, or 0.13 percent, to 2,294 dollars a tonne.
The three-month unofficial nickel price increased 72.5 dollars, or 0.54 percent, to 13,485 dollars a tonne.
The three-month unofficial tin price lost 150 dollars, or 0.94 percent, to 15,725 dollars a tonne.