The base metals prices on the London Metal Exchange (LME) closed higher mostly on Wednesday.
The three-month unofficial copper price dropped 6 U.S. dollars, or 0.13 percent, to 4,572 U.S. dollars per tonne.
The three-month unofficial aluminium price increased 11 U.S. dollars, or 0.76 percent, to 1,458.5 U.S. dollars a tonne.
The three-month unofficial lead price increased 13 U.S. dollars, or 0.81 percent, to 1,615 U.S. dollars a tonne.
Besides, the three-month unofficial zinc price increased 5 U.S. dollars, or 0.32 percent, to 1,583 U.S. dollars a tonne.
The three-month unofficial nickel price increased 310 U.S. dollars, or 3.57 percent, to 8,985 U.S. dollars a tonne.
The three-month unofficial tin price increased 287.5 U.S. dollars, or 2.00 percent, to 14,662.5 U.S. dollars a tonne.