- KC Chem International
- Address:220 Ho Sanho Building 690 Bukbeon-dong
- KCP
- Address:205-3 Gyedang 2-ri Wachon-myeon
- HANDO STEEL CO LTD
- Address:Gasan-dong
- Dae Sung Teck Co.,Ltd
- Address:595-8,Daecheon-dong ,Dalseo-gu
- Fam Internatioal Corp
- Address:Kangnam Gu
- YC PLUS INC.
- Address:552-2 Dangsandong-3ga, Youngdeungpo-gu
- Chemocean
- Address:Dowha Dong
- yungsan company
- Address:SungNam Myeon Sunwon ri 660-2
- SEHWA SYNTHETIC FIBER
- Address:# 701-1, NOWON 3-GA,
- Chemnews corp
- Address:Room 601, 6F, Sungji bldg, # 538 Dohwa-Dong
- HI CHEM CORP
- Address:NO. 212, SANGA OF 2ND SAMSUNG APT. , SINGONGDUK-DONG,
- RUSO INC.
- Address:3rd fl, 308-1, Sincheon-dong, Dong-gu
- I2 CORPORATION Co., Ltd.
- Address:9F, Maru-Building, 942-20, Daechi-Dong
1