May 13, 2015
Asahi Kasei Corp.

Regarding the agreement for Asahi Kasei to acquire Polypore International, Inc. as announced in Asahi Kasei Announces Agreement to Acquire Polypore's Energy Storage Segment on February 23, 2015, approval of Polypore's shareholders was obtained at a special meeting held on May 12, 2015 (US Eastern time).

Regulatory authorities of relevant countries are now examining the contemplated transactions. Completion of the acquisition remains subject to the closing of the sale of Polypore's Separations Media segment to 3M and to customary conditions, including receipt of applicable regulatory clearances.

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