- Jnk Science.,Ltd
- Address:# 402 Jung-Jin Bldg, Bang-Bae Dong Seo-Cho Gu
- DAEDUK POLYMER CO., LTD.
- Address:603, DAEPYOENG BLDG, PILDONG RO 14, JUNG-GU
- Se Young Oil & Chemical Co.
- Address:948-14,Gamjeon 1-dong ,Sasang-gu
- BNF co.
- Address:Low Building 203-1, 511 Sangdo-Dong, Dongjak-Gu
- Taechang Corporation
- Address:IT Castle 1-1209, 550-1 Gasan-Dong, Geumcheon-Gu
- Celltrion Orchem Co., Ltd
- Address:1Ma-311,Sihwa Industrial Complex,Jeongwang-dong ,Siheung-si
- Oxy Co., Ltd.
- Address:15fl,Dacom bldg, 706-1,Yeoksam-dong ,Gangnam-gu
- AJU
- Address:381-1, sangpyung-ri, okgu-eup,
- AEKYUNG INDUSTRIAL CO LTD
- Address:# 83 Gurodong Gurogu
- Samohnk Co.,Ltd
- Address:1422-6,Seocho-dong ,Seocho-gu
- Maxsun Co., Ltd.
- Address:733-25,Yeoksam-dong ,Gangnam-gu
- BUM CHANG CHEMICAL CO.,LTD.
- Address:178-143, GAJWA-DONG, SEO-GU, INCHON, KOREA.(Zip Code: 404-250)
- KOREA ID CHEM CO LTD
- Address:# 5F, Woosung Medical Center 755, Naesohn-dong,
- Eun Ha Co.,Ltd
- Address:731-1,Ancheong-dong ,Gwangsan-gu
- EnGeos Co., ltd.
- Address:2# 753-8 Danwon-gu
- Neochemical
- Address:388-19 Neung-an-ri, Jori-eup,
- Aligra- Tech Corp
- Address:Electronic Building 201, 11-23, Supyo-dong, Chung-ku
- GTEP
- Address:Soonchunhyang Univ. 6505, Sinchang-myeon
- KIM&S KOREA CO LTD
- Address:574-6 Sillim-ri, Sillim-myun,