Zoltek is an applied technology and materials company. Zoltek's Carbon Fiber Business Unit is primarily focused on the manufacturing and application of carbon fibers used as reinforcement material in composites, oxidized acrylic fibers for heat/fire barrier applications and aircraft brakes, and composite design and engineering to support the Company's materials business. Zoltek's Hungarian- based Specialty Products Business Unit manufactures and markets acrylic fibers, nylon products and industrial materials.