Tetra Rex Bio-based is manufactured solely from a combination of plastics derived from sugar cane and paperboard. In Tetra Rex Bio-based cartons, the low density polyethylene used to create the laminate film for the packaging material and the neck of the opening, together with the high density polyethylene used for the cap, are all derived from sugar cane. These plastics, like the Forest Stewardship Council™ (FSC™) certified paperboard, the plastics can be traced back to their origin, affording the package the highest category of bio-based certification from Vincotte, the international recognized assessment body.