Headquarter
Seoul Headquarters
- 2313, Pacific Tower, 135 Seosomun-dong, Jung-gu, Seoul, Korea
- +82-2-756-1313
- +82-2-755-1320
Siwha Plant I
- Established in October 1995
- 87, Gongdan 1-daero 80beon-gil, Siheung-si, Gyeonggi-do, Korea
- +82-31-497-1313
- +82-31-497-1315
Siwha Plant II
- Established in October 2020
- 31, Gongdan 1-daero 80beon-gil, Siheung-si, Gyeonggi-do, Korea
- +82-31-498-1313
- +82-31-497-1327
Ulsan Plant
- Established in December 1990
- 130, Gacheon-ri, Samnam-eup, Ulju-gun, Ulsan, Korea
- +82-52-263-0013
- +82-52-263-7785
Eumseong Plant
- Established in January 2008
- 69, Hightech Industrial Complex-ro, Samseong-myeon, Eumseong-gun, Chungcheongbuk-do, Korea
- +82-43-878-1310
- +82-43-878-1311
Daechon Site
- Established in July 1988
- 231, Daesa-ri, Samseong-myeon, Eumseong-gun, Chungcheongbuk-do, Korea
- +82-43-878-0313
- +82-43-878-6525
ISC
- Established in May 1994
- 415 E, Golf Road, Suite 105, Arlington Heights, IL, 60005, U. S. A
- +1-630-616-1331
- +1-630-616-1339
L.A. Plant
- 5946 E, Washington Boulevard, Commerce, CA 90040
- +1-323-726-7723
- +1-323-726-7905
PT. ILSAM GLOBAL INDONESIA
- Established in August 1999
- Kawasan Industri Jababeka Tahap II Blok RR No. 3C. Cikarang Bekasi Indonesia
- +62-21-8983-0313
- +62-21-8983-0321
南海一三化學有限公司
- Established in April 2003
- Songxia Industrial Park, Songgang, Nanhai, Foshan, Guangdong, China
- +86-757-8520-0131
- +86-757-8520-0133
ILSAM VIETNAM CO., LTD
- Established in November 2006
- Longthanh Industrial zone, Taman Village, Longthanh District,
Dongnai Province, Vietnam - +84-251-351-4313
- +84-251-351-4312
