- Haesan polymer
- Address:Yeoksam-dong
- n&b
- Address:140-1 JUNGDONG SUSUNGGU
- KwanCheonKim Co., Ltd.
- Address:126-2 Jinjuk-ri, Cheongso-myeon
- pantra corporation
- Address:1530-4, Songjung-Dong, Gangseo-Gu
- Hansuk Petrochemical Co.,Ltd
- Address:161-9,Deok-ri,Bongdam-eup ,Hwaseong-si