Claude Dauphin (businessman) revenues of $13.4 billion. By that time, Trafigura had brought in Sonangol as a 30% shareholder in Puma, and had also reduced its own stake to 49%. Dauphin never took Trafigura public, believing private company status was the best model for a trading firm. Trafigura’s revenue rose tenfold in the period from 2005 to 2014 to reach $127 billion. In his leadership position with the company, Dauphin was an important figure in Trafigura's response to the 2006 Ivory Coast toxic waste dump environmental disaster. After local contracting company Tommy dumped 500 tonnes of waste at landfill sites around the port
Toxic waste over the siting of the facilities, and authorized the use of force if needed. In the aftermath of the Warren County protests, the 1984 Federal Hazardous and Solid Waste Amendments to the Resource Conservation and Recovery Act focused on waste minimization and phasing out land disposal of hazardous waste as well as corrective action for releases of hazardous materials. Other measures included in the 1984 amendments included increased enforcement authority for EPA, more stringent hazardous waste management standards, and a comprehensive underground storage tank program. The disposal of toxic waste continues to be a source of conflict in the U.S.