- Officepia Co., Ltd.
- Address:12-4 Yongmun-dong
- SB Chemical Co., Ltd.
- Address:403-3 Mocknae-Dong Danwon-Gu
- Sechang Chemical Co.,Ltd.
- Address:256-9,Gajwa-dong ,Seo-gu
- EG Corporation.
- Address:820, shin pyeong, chu bu
- Erae Technology & Trading
- Address:
- Tech4M
- Address:
- IMS CORPORATION
- Address:No. 403, Sunwoo Bldg, 1556-9, Seocho-Dong,
- C&G TRUST COMMERCIAL COMPANY
- Address:Duhodong
- SEANA C&T
- Address:301, 394-10, Huam-Dong, Young San-Gu
- JS JINGRUI QUARTZ R&D INC.CO
- Address:no 118, west pisan
- SAMWHACHEMICAL CO LTD
- Address:240-1
- Chemikhan Corporation
- Address:2F, Daesung Building, 162-8, Dansan-Dong 2-Ga,
- Cosmo Chemical Co., Ltd.
- Address:556-15,Dohwa-dong ,Mapo-gu
- Korea Refractories Co.,Ltd.
- Address:33-1,CHINYONG-RI,Jinyeong-eup ,Gimhae-si
- Shinseung Hichem Co., Ltd.
- Address:Guro-dong 191-7,Guro-dong ,Guro-gu
- Dongwon Trading Corp.
- Address:ROOM 1602 KUMHO PALACE BLDG. , 327-2 CHANGSIN-DONG, CHONGRO-KU
- Infochems Inc.
- Address:1165 Gonghangdong
- CDC KOREA
- Address:No.107 Samsung dong Kang nam gu
- Shinden Korea Techno Co., Ltd
- Address:#602 Samyoung Building,Samseong-2dong
- Fairbiz Korea Co.,Ltd
- Address:118 Guil Useong Arcade, Guro 1-dong, Guro Seoul 152-050 Korea