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.

INCONEL® Alloy 230 Bars-Sheets and Plates INCONEL® Alloy 600 Bars-Sheets and Plates-Wire-Tubes and Pipes INCONEL® Alloy 601 Bars-Sheets and Plates-Wire-Tubes and Pipes INCONEL® Alloy 617 Bars-Sheets and Plates 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 NIMONIC® Alloy 75 Bars-Sheets and Plates NIMONIC® Alloy 80A Bars-Sheets and Plates NIMONIC® Alloy 90 Bars-Sheets and Plates-Wire-Strip NIMONIC® Alloy 263 Sheets and Plates UDIMET® Alloy 188 Bars-Sheets and Plate UDIMET® Alloy L-605 Bars-Sheets and Plates Waspaloy® Sheets and Plates

The Haigh-Farr Wraparound™ is a self-contained omnidirectional antenna for cylindrical or conical shaped bodies. A single point feed is used and no external splitters, combiners or cable harnesses are required for installation. The antenna is conformal, and may be mounted flush, or on the exterior of the vehicle. Designs are available from 300 MHz to 13 GHz with typical applications including Flight Termination, GPS, Telemetry, Data Links and Transponder. Multiple antenna elements may be combined within the same physical Wraparound™, providing multi- band capability in a single, compact package. Wraparound™ antennas have been flown on vehicles from subsurface sea to space, including high-mach kinetic kill weapons, high-G projectiles and re-entry vehicles. The Wraparound™ has been qualified for use on several high performance vehicles flown on test and launch ranges throughout the United States and Europe. For high aero-heating applications an ablative heat shield may be added to the antenna for additional thermal protection.

The first step toward armed helicopters The Bomb Rack Unit (BRU) is a device installed on a helicopter’s Stub-wing to mount various armaments such as rocket launchers and air-to-ground missiles, and it consists of a Pylon Unit and a Bomb Rack Unit. CTLA’s Bomb Rack Unit is equipped with a Boresight function that allows vertical (up/down) and horizontal (left/right) angle adjustments, and a solenoid-actuated free-fall weapon release (Jettison) method is applied. CTLA’s Bomb Rack Unit has passed the system tests for the Light Armed Helicopter (LAH) and received suitability certification, and it is currently in mass production.

NarSha is a dedicated small satellite for monitoring methane (CH₄) emissions, a key contributor to the climate crisis. It is the first satellite of its kind in South Korea to be developed and led by a private company. The launch of NarSha-1 is targeted for the fourth quarter of 2026.

- Specialized in manufacturing Miniture ball screw - Shaft diameter 4mm~20mm - Precision grade C0~C7 - Shaft length differs depending on material, size, accuracy of shaft - Efficiency 90% or higher

A compact EO/IR gimbal camera system designed for UAVs, unmanned surface vehicles, and defense platforms. The system integrates a QVGA/VGA-class LWIR thermal imager and a high-resolution EO camera within a stabilized gimbal, ensuring reliable performance in diverse environmental conditions. Optimized for ISR (Intelligence, Surveillance, Reconnaissance) missions, the system provides detection, recognition, and identification (DRI) capabilities with low-SWaP (Size, Weight, and Power) characteristics.