shares in itaconix plc were up 13 early wednesday after the company said that firstquarter performance is substantially above the yearearlier period and is supportive of current market expectations for the full year the londonlisted plantbased specialtypolymers company said that product volumes in cleaning applications are leading revenue growth and that volumes from existing major north america brands grew the company said it continues to maintain sufficient rawmaterial supplies and production capacity with expected continued growth in european union sales it is accelerating plans to strengthen finishedgoods inventories to ensure delivery times to eu customers it said shares at 0737 gmt were up 065 pence at 555 pence