In 2000, SASA strengthened its leading position in the sector by establishing a joint venture with DuPont. Following the acquisition of DuPont’s shares by Sabanci Holding in 2004, it became a wholly-owned subsidiary of Haci Omer Sabanci Holding A.S. and was renamed ADVANSA. In 2005, the name of the group in Turkey was changed to ADVANSA SASA Polyester Sanayi A.S.