GI System Co., Ltd. is a technology company specializing in system integration, software, and hardware development. Its main businesses include automotive electronics (ECU, smart key, HUD), precision navigation systems using D-GPS, and security monitoring solutions. Key products include intrusion detection systems, optical cable monitoring systems, and auto test equipment for aerospace. Serving industries such as automotive, defense, and telecommunications, GI System delivers high-precision, reliable solutions to support advanced infrastructure and critical operations.