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Mareva Inc. was created in 1983, and managed by Gerard Legrand. Mareva has become in 80 years time, a leader of the swimming pool water treatment chemicals market. Mareva was organized to manufacture the Revolutionary chlorin-free disinfecting molecule, P.H.M.B., Mareva is now the 2nd world's largest producer of P.H.M.B. and the first transformer of pool chlorine-based chemicals with French funds.