HQ, Ansan Plant
- Address : Cheonan-Plant: Seobukgu2Gongdan1ro 131, Cheonan-si, Chungnam, South Korea
- TEL : 82-41-621-3355
- FAX : 82-41-621-3356
Dunpo Plant
- Address : Dunpo-Plant:Yoonboseonro 403-57, Dunpo Myeon, Asan-si Chungnam, South Korea
- TEL : 82-41-425-1022
- FAX : 82-41-425-1023
Yesan Plant
- Address : Butggot-ro 338bungil 20, Yesan-eup, Yesan-gun, Chungnam, South Korea
- TEL : 82-41-333-3360
Soonsung Plant
- Address : Soonsungro 697, Soonsung-myeon, Dangjin-si, Chungnam, South Korea
- TEL : 82-41-352-7211
- FAX : 82-41-352-7213