We, STX Engine, started with our business to be designated as a defense company in 1977 and established a factory for defense purposes in 1988. Moreover, we have grown into a largest defense diesel engine manufacturer by licensing with MTU. Based on the aforementioned fact, we manufacture and provide diesel engines for main battle tank, self-propelled artillery and armored vehicle to ROK Army, for destroyer, frigate, patrol vessel and support vessel to ROK Navy, for patrol vessel to Korea Coast Guard as well.

Signaty X IR Helmet Strobe is a next‑generation, domestically developed IFF LED device. It features IR plus RGBW color LEDs (red, green, blue, white), all housed under a high‑strength polycarbonate dome. It supports multi‑wireless synchronization via short‑range communication, GPS/RTC, and mesh relay—enabling simultaneous use of RGB LED + IR or RGB LED + white LED, with up to 42 pattern synchronizations (expandable to 252) using 256‑bit encrypted data. Runtime reaches up to 130 hours (LED 130 h / IR 125 h) on a single AA battery. Built to MIL‑STD‑810G and KC standards, it ensures drop, dust, sand, immersion, and temperature resistance. Manufactured in Korea with domestic service support.

Nas-52 or Night Attachable Sight gives law enforcement and military personnel the versatility in operations through attaching simple night vision device prefixed to daytime sight which makes available to engage in surveillance or to acquire targets regardless of ambient light conditions. NAS-52 is a clip-on system designed to mount in front of any kinds of daytime riflescope, and it gives daytime riflescope the night vision capability. Sniper or designated shooter using daytime scope will significantly need this performance for night time operation.

Fast and Intuitive Quality Inspection With precise AR overlay technology, deviations between 3D design data and real-world objects can be identified instantly. This enables fast and accurate quality inspections on the spot. Optimized and Lightweight 3D File Processing Supports the four most popular 3D file formats: FBX, GLTF, OBJ, and STL. Lightweight processing ensures faster matching and smoother inspection workflows. From Inspection to Report — All in One Inspection results can be recorded and documented with image captures, drawings, and notes. Final reports can be exported in PDF, XLS, or CSV formats, making them easy to share and manage.

Every feature designed with transparency and openness in mind. Access enterprise-grade quantum computing with the tools you need to innovate.

Our technology and quality have been recognized internationally and regionally as we supply products manufactured based on AS9100, NADCAP special process approval to global companies lockage in domestic and overseas.

The APG-63(V)3 AESA radar provides powerful, adaptable radar technology, proven performance, and tactical flexibility that F-15 pilots can rely on. Available for F-15C and F-15E aircraft, it continues a tradition of innovative, highly reliable technology. Superior situational awareness is a key benefit of this all-weather, multimode radar.