SonarTech Co., Ltd. was established in Busan in 2000 to design, manufacture, and maintain hydrography survey and electronic communication equipment with its own technology. SonarTech has been developing marine-related equipment in the defense sector, including Sonobuoy, WDS(Wearable Diver Sonar), SSS(Side Scan Sonar), URN-MS(Underwater Radiated Noise Measuring System), BTS(Bathy Thermography System), Echo Sounder, MCMV's Sonar etc. SonarTech is a robust company that contributes to the improvement of Republic of Korea's defense capability and development of defense science and technology based on its constant R&D efforts and creative challenge spirit.

Sonobuoy : A buoy that transmits or receives sound waves to locate unknown targets or hostile submarines. Essential products for conducting ASW(Anti Submarine Warfare)
WDS(Wearable Diver Donar): An wearable scanning sonar that can be attached to the body of a diver, allowing the diver to act freely while searching for objects in front of him/her with sonar images displayed on the goggles