NanoHorizon’s SmartSilver™ Acheives Oeko-Tex Standard 100 Certification

State College, Pa.-based NanoHorizon’s SmartSilver™ nanoscale silver antimicrobial additives have
received Switzerland-based Oeko-Tex Association’s Oeko-Tex Standard 100 certification that they are
not harmful to human health.

“SmartSilver textile additives effectively control bacteria, but do so in a way that does not
harm the user of the enhanced product,” said Dr. Manfred Wentz, US director, Oeko-Tex. “Unlike many
other antimicrobials that rely on harsh chemicals to control microbes, SmartSilver uses silver,
which is not on Oeko-Tex’s restricted substances list.”

“Receiving Oeko-Tex approval is an important endorsement of silver’s natural role in safe
bacterial and odor control,” said Dr. James Delattre, vice president, global marketing,
NanoHorizons. “Our SmartSilver nanotechnology unlocks silver’s power to provide permanent,
effective antimicrobial protection that doesn’t wear off or wash out of fabrics. Now that we are
Oeko-Tex approved, we look forward to working with manufacturers who value textile safety as highly
as we do.”

December 16, 2008