…Between 1984 and 1985, Boliden delivered…approximately 20,000 tonnes of metallic residues from the Rönnskär smelter to…Promel…in Arica…[A]n initial shipment was sent to Chile in August 1984…A second consignment was dispatched in…1984 and the third and final consignment left Boliden in…1985. The exports complied with all applicable laws and regulations and were conducted under the supervision of the Swedish and Chilean authorities. Boliden ensured, as far as possible, that the material would be processed in the correct manner…Boliden…has no first-hand knowledge of developments in Arica after 1985…When we found out, in 1998, that the inhabitants of Arica might have suffered harm as a result of the hazardous waste, we offered on several occasions to provide expert assistance for the decontamination of the area, in cooperation with various Swedish and Chilean bodies. The offers were never taken up…