London aluminum prices on Wednesday held close a 13-1/2-year high hit in the previous session, supported by supply shortage concerns, even though the dollar ticked up and made the greenback-priced metal costlier for holders of other currencies.

Three-month aluminum on the London Metal Exchange was flat at $3,183 a ton, as of 0735 GMT. 

On Tuesday, prices had touched their highest since July 2008 at $3,236.