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Updated on: 20/05/2013
: Creation of the SATTE (Société d'Assistance Technique de Traitement des Eaux).
: The SATTE becomes part of the American group US Filter and, several months later, the American group is bought out by the VIVENDI Group
: US Filter is bought by the Vivendi Group (Générale des Eaux).
: Opalium is created to meet the needs of small-scale modular water treatment stations (it
is still part of the Vivendi Group).
: The Vivendi Group becomes VEOLIA.
: Opalium becomes an independent company within the Veolia Environnement Group.
: Opalium is attached to OTV France and becomes its subsidiary.
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