Goseong Yard (Headquarter) : Tel. 82-55-673-7014 / Address. 51-1, Naesan 3-gil, Donghae-myeon, Goseong-gun, Gyeongnam
Miryang Factory : Tel. 82-55-391-7020 / Address. 40, Yangdongnonggongdanji-gil, Hanam-eup, Miryang-si, Gyeongnam
Seoul Office : Tel. 82-2-3272-7020 / Address. 1405, 75 Keunumul-ro, Mapo-gu, Seoul
Technical education Institute : Tel. 82-70-8640-2247 / Address. 1998-18, Joseonteukgu-ro, Naesan-ri, Donghae-myeon, Goseong-gun, Gyeongnam