The company manufactures and sells carbon fibers, which are used as the primary building material in commercial products; filament winding and pultrusion equipment used in the production of large volume composite parts; and acrylic and nylon fibers and yarns used in textile industry.
It also sells carbon fiber, nylon granules, plastic grids and nets, and carboxymethyl cellulose.
The company sells its products primarily in Americas, Europe, Asia, and Australia.
Zoltek Companies was founded by Zsolt Rumy in 1975.
The company is based in St.
Louis, Missouri.

