NanoHorizons And Indo Poly Partner To Produce Yarns

State College, Pa.-based NanoHorizons Inc. — a developer of nanoscale performance additives for the
textile and medical industries — and Thailand-based Indo Poly (Thailand) Ltd. — a manufacturer of
polyester resins, yarns and fibers for domestic and international markets, and part of Indorama
Ventures Ltd. — have announced a partnership to produce unique, permanently antimicrobial,
anti-odor polyester yarns. The yarns will be marketed under Indo Poly’s Ambs® Pro and Ambs® Active

NanoHorizons will supply Indo Poly with silver-based antimicrobial additives that will be
bonded at the molecular level with the Ambs fiber, which will be processed into textured and fully
drawn polyester yarns.

Indo Poly’s Ambs Pro Yarns will be endorsed with NanoHorizons’ certified SmartSilver™
performance brand for antimicrobial products. The Ambs Pro/SmartSilver yarns will be marketed to
athleticwear, outdoor apparel, and uniform manufacturers; and also will be sold to textile product
manufacturers for health care applications. 

June 11, 2008