EXA E&C, Inc. specializes in the construction business that performs CR construction and installation construction for uninterruptible clean rooms, such as semiconductor, LCD, LED, and OLED factories. It operates through the following business divisions: Specialized Construction Business Division, Electronic Business Division, EXA Vietnam, EXA Poland, Msonic, Msonic Yeontae, Msonic Indonesia, and Internet of Things. The company was founded on May 3, 1991 and is headquartered in Seoul, South Korea.