13 Apr 2015 --- Roquette, the world's No. 5 starch producer, has announced the launch of a new industrial unit for the production of isosorbide at its site in Lestrem, Pas-de-Calais, France. A global player in the processing of plant-based raw materials, the Roquette Group confirms its ambition to become a preferred supplier in the performance plastics and specialty chemistry markets.