Ansan Plant : 220, Sihwa-ro, Danwon-gu, Ansan-si, Gyeonggi-do, Republic of Korea
- TEL.031-319-4680
- FAX.031-319-4688
Siheung Plant (Affiliated laboratory) : 74, Gongdan 1-daero 363 beon-gil, Siheung-si, Gyeonggi-do, Republic of Korea
- TEL.031-499-8485
- FAX.031-431-6091