 On 19 August 2006, the tanker ship "Probo Koala", chartered by the company Trafigura and docked at the port of Abidjan, transferred a liquid into tankers owned by a firm called Compagnie Tommy.The company claims the ship had been chartered by Trafigura to transport oil to another West African port, and was returning to Europe, empty.The transfer at Abidjan, according to the company, was a routine maintenance stop, not a delivery of waste from European ports.