Copper rose on Tuesday as worries about Japan's nuclear crisis eased and the dollar fell, although rising stockpiles of the metal and weak Chinese demand kept a lid on prices. On New York's COMEX, benchmark copper for May delivery settled up 2.70 cents, or 0.6 percent, at $4.3130 a lb. Aluminium ended at $2,600 a tonne from $2,570 a tonne while zinc finished at $2,331.5 from $2,280 a tonne and battery material lead closed at $2,670 from $2,645 a tonne.
Tin finished at $30,150 from a last bid of $29,650 a tonne and nickel finished at $26,350 a tonne from a close of $26,750 a tonne.