Duksan NepCours is a specialist in Position, Navigation, and Timing (PNT) technology, tracing its operational roots to the 2013 acquisition of Hanyang Navicom's defense division and incorporated into the Duksan Group in 2021.
Navigation solutions account for approximately 98–99% of revenue, making it an essentially single-segment business.
Core products—multi-mode GNSS receivers, anti-jamming phased-array antennas, and integrated INS/GNSS navigation systems—are supplied across the full spectrum of platforms: ground weapons, guided missiles, unmanned aerial vehicles, aircraft, launch vehicles, and satellites.
The company is the only domestic firm with a fully in-house one-stop solution capability, conducting all stages from design and development through production and test evaluation using its own proprietary technology.
In 2025, Hanwha Aerospace represented 34% of revenue, LIG Defence & Aerospace 33%, and Hyundai Rotem 15%, with the top three customers together accounting for 83.43% of total sales.
The company participates in 82% of 72 domestically mass-produced weapon systems, with components adopted in the co-development phase typically continuing through production, maintenance, and upgrade cycles, forming a structurally resilient long-term supply base.
Competitively, it is the only Asian company listed in Research & Markets' global top 20 anti-jamming firms, and is the first Korean PBA manufacturer to obtain NADCAP Gold certification in the aerospace and defense sector.
It also received A-grade ratings from two independent evaluators during the KOSDAQ technology-track listing review.
In the space sector, the company has supplied navigation receivers for all Nuri rocket launches (1st through 5th) and is participating across all three segments—satellite, ground, and user systems—of the KPS national infrastructure program, which carries a total budget of approximately KRW 3.7 trillion.