Optum Health Focuses On Search Optum Health Ltd ("OPM")advises that it has entered into an agreement with Wavtech PtyLtd ("Wavtech"), its co-venture partner in Optum E.S. Pty. Ltd("Optum ES"), in relation to the shares and shareholding in thatcompany.Optum ES is the operating company for the co- venture and holdsthe Australasian rights to the US based TerraSan and MariSanwater treatment and recycling technologies. Under the...... Similar Editorial : by Marilyn J. Tellez, M.A.. | Source : Technology Assessment