1. GEI ConsultantsFort CollinsColoradoUSA
2. GEI ConsultantsGlastonburyConnecticutUSA
3. Chilean Mining and Metallurgy Research CenterSantiagoChile
4. Environmental and Molecular ToxicologyOregon State UniversityCorvallisOregonUSA
5. Windward EnvironmentalSyracuseNew YorkUSA
6. Rio TintoSouth JordanUtahUSA
7. European Aluminium AssociationBrusselsBelgium