US benchmark cocoa futures rose to a new three-week top Wednesday, extending this week's rally on follow-through speculative buying and a limited producer selling, traders said.
The New York Board of Trade's cocoa contract for September delivery settled up $18 at $1,555 per tonne after trading from $1,530 to $1,560 - the priciest for the contract since July 17.
December cocoa gained $20 to $1,602 a tonne and longer-dated cocoa futures advanced $18 to $20.