Global Putra CEO Sumadi Kusuma also displayed interest in collaboration with the Osijek Airport, and ports of Rijeka and Ploče, as a trade link of China and Indonesia to the EU. Kusuma said that Indonesia was the world's largest producer of palm oil, which is used in biodiesel production in the European Union and that his company was seeking strong logistical infrastructure in Croatia - a river port, an airport and a sea port. The overall aim of joint ventures is to enhance support for Croatia to become a new European gateway for Indonesian and Asian products, as well as to promote Croatian products in Indonesia and Asia.