Polypore Comments on Court of Appeals' Ruling Regarding Microporous

Polypore International, Inc.

today announced that the 11th Circuit Court of Appeals has denied the Company's appeal of the Federal Trade Commission's ("FTC" or "Commission") Order regarding Polypore's acquisition of the Microporous assets in 2008. The Company sought to overturn the Commission's Order, issued November 5, 2010, which required the Company to divest Microporous, including manufacturing facilities located in Piney Flats, Tennessee and Feistritz, Austria. The Company maintains its position that the Commission committed legal errors in ruling against Polypore and the Company now plans to seek further review of this decision, including in the U.S. Supreme Court, if necessary. At this point, it is not possible to predict with certainty the outcome or timing of the appeal process.