Gwang-Su Sin

Booxen Co., Ltd. engages in the wholesale of books, magazines and news papers. The company was founded in January 1996 and is headquartered in Paju-si, South Korea.

Rexfield Country Club Co., Ltd. operates golf and sports facilities. The company is based in Yeoju, South Korea. The CEO of the South Korean company is Jung-Min Woo.

Part of WOONGJIN Co., Ltd., Kukdong Construction Co. Ltd. is a South Korean company that provides civil, housing, and power construction services. The company is based in Tongyeong, South Korea. The company was founded in 1998. The CEO is Myung-Ja Choi.

Toray Chemical Korea, Inc. engages in the manufacture and sale of textiles and chemical products. It offers filament, staple fiber, filter, film, aramid, and melt-blown. It operates through Fiber and Non-fiber Business divisions. The Fiber division provides textiles for industrial use, clothes, and others. The Non-fibre division offers filter and film for filtering and packaging. The company was founded on July 1, 1972 and is headquartered in Gumi-si, South Korea.

Woongjin Polysilicon Co., Ltd. develops and supplies solar-grade polysilicon for photovoltaic modules. The firm also engages in solar power business. The company was founded on July 16, 2008 and is headquartered in Sangju, South Korea.

Part of Woongjin Energy Co., Ltd., Woongjin Playdoci Co., Ltd. is a South Korean company that offers various facilities and benefits for entertainment and leisure activities. The company is based in Bucheon, South Korea. The company provides a range of services such as ball-bear park stores, golf academy, fitness programs, and kids' cafe. The company also offers discounts and special benefits for their customers during the summer season. Additionally, the company provides hot spring spa, sauna, and golf practice facilities. The company operates every day except for regular closed days on Mondays. The CEO of the company is Jung-Hoon Lee.