- BICE INTERNATIONAL
- Address:16-45 Nonhyun-Dong, Kangnam-Gu
- Hi-One Optical
- Address:3F 1030-1 Chimsan-dong Buk-gu
- Choi & Co.
- Address:Sengnae-dong
- GN Co.
- Address:7F Hyundai Plaza, Jungsan-Dong, IIsandong-Gu
- gemfactory
- Address:7115-15, Taepyeong-dong, sujeong-gu
- JUNGJIN INTERNATIONAL CO.,LTD.
- Address:Milbridge Hall 9F, Yeoksamdong 832-22
- belmore co.,ltd
- Address:RM102, 304-255, Sindang-dong, Jung-gu
- Eugene Optical Co., Ltd.
- Address:180-2,Nowon-dong 1-ga ,Buk-gu
- Taesung Body Jewelry
- Address:543-5, Sungne-1dong, Kangdong-Ku
- Vision For Two
- Address:Mapo-daero 86
- Samia cooperation
- Address:Olympic Rd. 38
- CHL International Co.
- Address:No. 304, 149-1 Anam-dong 5ga, Sungbuk-gu
- Taesung Titanium body jewerly
- Address:543-5, Sungne-1dong, Kangdong-ku
- Frame Factory Co., Ltd.
- Address:#1080, Chim San-dong, Buk-gu
- DK ITECH CO., LTD
- Address:No.310 Suntechcity Ii B/D,307-2 Sangdaewon-dong
- mymemoria
- Address:9FL, ARIRANG TOWWER, 1467-80
- Jin Jewelry
- Address:Boeun Bldg 3F 26-11 Macheon-dong, Songpa-gu
- HONG SUNG MINING CO.,LTD
- Address:yangjae-dong
- Unus Jewelry Co., Ltd.
- Address:Sangjangdong
- WOOBO INTERNATIONAL CO., LTD.
- Address:5th. , F. S. Bldg. , 190-2 Nam Chang-Dong,