sentences:  Tetra Pak said it will increase its use of Forest Stewardship Council (FSC) certified paper to 100 percent in 2020, with an interim target of 50 percent by 2012.The new targets will encompass the whole value chain, from suppliers to customers, putting pressure on partners to perform coherently.The company reported that it secures raw material for paper cartons in cooperation with the World Wide Fund for Nature (WWF), the Global Forest & Trade Network (GFTN) and Forest Stewardship Council (FSC) and that it strives to source polyethylene made from sugarcane from sustainable suppliers in Brazil.