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    united therapeutics
    Contact UTHR

    United Therapeutics
    Telephone: 301-608-9292
    Email: ir@unither.com

    To contact our
    Transfer Agent:

    Mailing address:
    Computershare
    P.O. Box 30170
    College Station, TX 77842-3170

    Overnight correspondence:
    Computershare
    211 Quality Circle, Suite 210
    College Station, TX 77845

    Website:
    www.computershare.com/investor


    Tel: 1 (201) 680-6578
    Toll Free: (800) 524-4458
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