December 21, 2009 Announcement on Battery Separator Film Joint Venture Formed with Toray Industries, Inc.
November 4, 2009 Toray Industries Agrees with TonenGeneral Sekiyu to Form a Joint Venture Through Investment in Battery Separator Film Business
November 4, 2009 TonenGeneral Sekiyu and Toray Industries, Inc. Agree to Form Battery Separator Film Joint Venture