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.

• Band Width : L1/L5 or L1/L2 • Supported GNSS Constellations : GPS/Galileo/NavIC/GLONASS/BeiDou • Interference resistance : - Single jammer interference resistance up to 90 dB(J/S) - Multiple jammers interference resistance up to 82 dB(J/S) - Support of up to 3 jammers simultaneously for each of frequency bands • Interfaces : Digital output • Power Consumption : Low power consumption

- Minimizing the station's door opening and closing time to support drones' quick entry and exit. - Structural design to minimize noise and vibration when opening and closing the door - Design and implementation of an interface for interaction between an automatic door system and a drone. - Automatically opening and closing door system - Automatic detection of drones through cameras and sensors, and safe storage and charging functions

Large mirrors are crucial in various optical systems, particularly long-range multi-spectral setups for defense, surveillance, and commercial use, like UAV optics and agricultural temperature monitoring. Aerospace applications, such as satellites and telescopes, are common. These mirrors come in different shapes and materials, including Al, Si, Ge, and Cu, spanning visible, UV, and IR spectrums. By using advanced CNC grinding, polishing, and diamond turning we provide precise surface forms, with tight tolerances, and multispectral performance. Our mirrors, up to 700mm in diameter, provide impressive specifications: 0.05% radius tolerance, less than 0.5Fr P-V irregularities, 0.1Fr RMS at 0.633μ, and sub-40Å RMS roughness. MKS Ophir's proprietary coatings enhance spectral performance and surface durability. Contact us to set a meeting at ADEX Seoul

MOHOC® and MOHOC® IR Cameras are purpose-built for tactical operations, offering rugged, reliable video capture designed specifically for military, law enforcement, and emergency response teams. Featuring a patented helmet-contoured base and low-profile design, these cameras eliminate snag hazards and maintain a secure, stable mount throughout dynamic missions. Both models record in crisp 1080p HD video and 12MP stills, with the MOHOC® IR version capable of capturing footage under infrared illumination—essential for night operations and low-visibility environments. A single-button interface with tactile vibration feedback ensures intuitive control, even when wearing gloves or in high-stress scenarios. Fully waterproof to 10 m and drop-resistant to 2 m, the MOHOC platform meets IP68 standards and is tested to MIL-STD-810G. Integrated features such as rotating lens, one-touch recording, and CurveLock™ mount system support rapid deployment and field adaptability. When used with C6ISR networks, MOHOC Cameras enable real-time video streaming and situational awareness at the tactical edge—empowering teams with the information needed to make mission-critical decisions.

NILO® Alloy 36 Bars-Sheets and Plates-Tubes and Pipes-Strip-Wire NILO® Alloy 48 Bars-Strip INCONEL® Alloy 230 Bars-Sheets and Plates INCONEL® Alloy 600 Bars-Sheets and Plates-Tubes and Pipes-Wire INCONEL® Alloy 625 Bars-Sheets and Plates-Tubes and Pipes INCONEL® Alloy 718 Bars-Sheets and Plates INCONEL® Alloy X-750 Bars-Sheets and Plates INCONEL® Alloy HX Bars-Sheets and Plates-Tubes and Pipes INCOLOY® Alloy A-286 Bars-Sheets and Plates NIMONIC® Alloy 75 Bars-Sheets and Plates NIMONIC® Alloy 80A Bars-Sheets and Plates NIMONIC® Alloy 90 Bars-Sheets and Plates-Strip-Wire NIMONIC® Alloy 263 Sheets and Plates UDIMET® Alloy 188 Bars-Sheets and Plates UDIMET® Alloy L-605 Bars-Sheets and Plates Waspaloy® Sheets and Plates Titanium Grade 2 Bars-Sheets and Plates-Tubes and Pipes Titanium Grade 5 (6Al-4V) Bars-Sheets and Plates Material no. 1.4545.4 / 15-5PH Bars Material no. 1.4548.4 / 17-4 PH Bars Material no. 1.4546.9 Bars

Model DCL120 Dot Sight is designed and developed specifically for use on .50 caliber (12.7mm) Heavy Machine Guns (HMGs) but not limited to the HMG. This distinctive dot sight adapted the world’s first extra wide lens (170 x 70 mm) which provides accurate shooting in jolting armored vehicles, shaking helicopters and rocking patrol boats with head-up and both eyes open. Unique features: icon3Extra wide lens (120x70mm) allows operators to track moving target with both eyes open. icon3Designed specifically for HMG icon3Solid construction for repeatable accuracy icon3Integrated recoil compensator retains prevents loss of sight picture on high recoil weapons icon3Each sight is CNC machined from a solid block of 6061-T6 aircraft aluminum.

Primarily used in medium-sized and large satellites, it provides high torque performance and momentum conservation. By localizing the Control Moment Gyro controller, which had previously been imported for Korea’s domestic satellite industry, Lumir has gained a competitive advantage in both performance and cost.