Trafigura carried out a caustic washing process involving coker naphta, on board a ship called the Probo Koala. Between 150 and 200 tonnes of caustic soda was used in washing. The company attempted to deliver the waste in Amsterdam, but the Amsterdam Port Services (APS) raised the price from 27 euros/metre 3 to 1000 euros/metre 3.
It would have cost to Trafigura over US$ 630,000 to treat all the waste. In Ivory Coast, the company would pay US$30-35per m3 of waste.
A total of 523 million m3 of toxic waste was dumped in Abidjan, affecting an estimated 100 000 people. According to the government, 109.5 hectares of crops belonging to 245 farmers was destroyed and 455 animals were culled to avoid contamination.
Trafigura operates a fleet of up to 110 vessels traveling at any given time, carrying 6.5 million metric tonnes of liquid and 1.25 million metric tonnes of dry bulk cargo each month. In 2011 Trafiguras turnover was US$122 billion.
Trafiguras annual turnover dwarfs the gross national product of many states. By way of comparison, in 2006, Trafiguras turnover was US$45 billion, while Ivory Coast had a gross national product of approximately US$ 18 billion.