TUSA? Engine Industries, Inc. (TEI), founded in 1985 and headquartered in Eski?ehir, Turkey, is a leading manufacturer of aerospace engines and components. The company specializes in the design, development, manufacturing, maintenance, repair, and overhaul of military and commercial aircraft engines, as well as gas turbines. TEI collaborates with global aerospace firms to deliver high-quality and innovative solutions, contributing significantly to the aviation industry in Turkey and internationally.