Hoang-Taig Choi

HUDIGM Architects & Engineering Co., Ltd. is a holding company, which provides construction, civil engineering, and construction management services. Its business areas are Architectural Design/Far East District (FED), Construction Management, Civil Engineering, and Green Environment Business. The Architectural Design/FED business provides building design development and construction and the United States military base relocation services. The Construction Management business offers project management services for construction industry. The Civil Engineering business constructs infrastructures such as road, sewage system, and railroad. The Green Environment Business provides services including biomass cogeneration, mechanical-biological treatment, and research and development of new renewable energy. The company was founded on May 24, 1984 and is headquartered in Seoul, South Korea.

KG Engineering & Architecture Co., Ltd. engages in providing civil engineering services. The company was founded on September 29, 1994 and is headquartered in Uijeongbu, South Korea.

GlowOne Co., Ltd. engages in the manufacture and sale of light emitting diode products. Its products include industrial, outdoor, and indoor lightings, lamp, engine, and others. The company was founded on September 8, 2010 is headquartered in Hwaseong-si, South Korea.

PONUTech Co., Ltd. cffers maintenance, prevention, and control equipment and constructs industrial plants. It operates through the following business divisions: Instrumentation Control Equipment Maintenance, Plant Business, Research and Development, and MMIS Business. The Instrumentation Control Equipment Maintenance division manages and maintains instrumentation and control equipment of reactor, turbine, and attached devices and provides printed circuit board integrated maintenance services. The Plant Business division constructs industrial plants such as nuclear and thermal power plants and installation of pollution prevention equipment. The Research and Development division offers radiation monitoring and environmental radiation monitoring systems. The MMIS Business division develops inspection, prevention, and control systems for industrial plants including core controllers applied to reactor protection system and digital system of main water supply pump turbine equipment. The company was founded on August 8, 2011 and is headquartered in Ulsan, South Korea.