Most metals up, nickel lower

In the metals markets on Wednesday, prices were mixed but most were up again.

Aluminium was up 1.5 percent to $2,835 per tonne on a report that stocks were down significantly in March. Meanwhile, three-month copper hit a new record of $7,380 per tonne despite a reported 500 tonne increase in inventories before slipping back to $7,280 per tonne. Zinc also hit a new record at $3,430 per tonne before dropping back to $3,365 per tonne later in the day.

Nickel was down 1.8 percent on the day to $19,650 per tonne, but only after achieving a new record high of $20,125 per tonne earlier in the session.

Among precious metals, gold added 1.4 percent to $638.50 per troy ounce. Platinum set another new record at $1,135 per troy ounce.