RN2 Technologies Co Ltd (148250.KS) manufactures and supplies radio frequency and microwave components based on low-temperature co-fired ceramic (LTCC) technology for mobile communication base stations, semiconductors, and medical equipment. The company produces multi-layer components including 90-degree hybrid couplers, directional couplers, asymmetric couplers, broadband couplers, Doherty combiners, terminations, delay lines, dividers, attenuators, and quadrifilars; multi-layer ceramic PCBs (MCP) via foundry services using LTCC, alumina, AlN, Al2O3, and ZTA substrates; and LTCC power materials. Founded in 2002 and headquartered in Hwaseong-si, South Korea, with production facilities in Dongtan and Gangneung, RN2 Technologies operates primarily in the electronic components industry, serving global telecommunications equipment manufacturers as the second-largest supplier of couplers for base station repeaters, and maintains listings on the KOSDAQ market. In November 2025, the company appointed new board members and announced a strategic pivot toward digital asset finance infrastructure, alongside ongoing expansions in ceramic heat dissipation substrates and recognition as Korea's sole producer of proprietary LTCC materials.