We, STX Engine, started in 1976 as a manufacturer specializing in diesel engines and played a central role in the development of the shipbuilding and the machine industry after being designated as a defense company in 1977. In addition, we have a competitive edge in both marine engines & stationary engines globally. Especially, we produce world-class advanced defense engines which designed as small, lightweight, high output performance. Moreover, our electronic and communication business, equipped with original technologies in underwater systems and radio wave detection, is expanding to the global market by performing R&D and quality innovation.

STX Engine's defense engines are designed focusing on small, lightweight and high output. Using heavy cut & ultra-precision machined parts from aluminum and high strength forged steel materials, our engine performs right on target even in extreme ambient conditions. On the basis of it, our engines are in service at the field of MBT, SPH for Army, Destroyer, Frigate, Submarine, Patrol Vessel for Navy & Coast Guard.
Furthermore, we produces military communication equipment, Radar Systems(Navigation Radar, Surface Search Radar, Coastal Surveilance Radar) and Underwater Acoustics(Hull Mount Sonar and TASS). In addition, we produce military satellite systems(Data Link and Multi-purposed Consoles) on the basis of many experienced researchers and unique technology.