KNSI (010020) made a striking debut on its first day of trading on the Cosdaq market, closing at 20,235 KRW—a rise of about double the previous day's level. The jump reflects investors’ optimism over prospects in the seafloor‑ and offshore communications sector.
The company specializes in the design, manufacturing, and sale of high‑performance communication systems for maritime use, including surface vessels, submarines, and unmanned aerial vehicles. By expanding its product line into the broader electronics (ESA) segment while leveraging its core expertise, KNSI has attracted market interest.
KNSI priced its public offering at 9,000–11,000 KRW per share, setting a reference price of 11,000 KRW. The offer drew institutional and investor attention, with premium demand for the newly listed shares evident.
Since its founding in 2001, KNSI has grown into a leading growth company thanks to its specialized offshore communications structure, patents, and dual certifications such as InnoBiz and Venture. Its strong debut signals new growth potential in the seafloor comms market and suggests continued expansion even after listing.