Hayashi Telempu North America (HTNA) makes automotive interior and accessory parts, with vehicle floor carpet as its core product and acoustic materials developed for cabin comfort. Headquartered in Plymouth, Michigan, the company traces its North American history to the 1983 establishment of AMTEX and now employs about 500 people across a network of U.S., Canadian, and Mexican operations. HTNA adopted its current name in 2012 after AMTEX merged with Hayashi of America.