HQ, Ansan Plant
- Address : Sandanro 35beongil 192, Danwon-gu, Ansan, Gyeonggi, South Korea
- TEL : 82-31-8085-1000
- FAX : 82-31-495-9617
Dangjin Plant
- Address : Soonsungro 697, Soonsung-myeon, Dangjin-si, Chungnam, South Korea
- TEL : 82-41-352-7211
- FAX : 82-41-352-7213
Dunpo Plant
- Address : Woonkyogil 170, Dunpo-myeon, Asan-si Chungnam, South Korea
- TEL : 82-41-532-8559
- FAX : 82-41-532-8559