RFHIC Corporation designs and manufactures gallium-nitride (GaN) based radio frequency (RF) and microwave components and systems for wireless infrastructure, defense and aerospace, and RF energy applications; core products include GaN on SiC transistors for RF energy and wireless infrastructure, high-power solid-state power amplifiers (SSPAs), high-powered sub-assemblies, and microwave generator systems supporting frequencies from DC to 40GHz; offerings target telecommunications such as 4G LTE and 5G base stations, defense applications including radar, military communications, and electronic warfare, and RF energy uses like semiconductor equipment, food processing, plasma lighting, vertical farming, microwave tumor ablation, proton beam therapy, and waste gasification. The company, founded in 1999 and headquartered in Anyang-si, South Korea, operates globally with in-house production facilities for die attach, wire bonding, packaging, chip-on-board assembly, hybrid modules, surface-mount technology lines, RF testing, and quality control, providing over 300 commercial off-the-shelf products alongside custom design services. Recent developments include participation in the 2025 Defense Semiconductor Forum to advance Korea's self-reliance in defense technology, a strategic equity investment in and joint product development with European semiconductor manufacturer SweGaN announced in 2024, and ongoing expansion through subsidiary B&C Tech's preparations for KOSDAQ listing following its merger with Metal Life to boost overseas defense sales.