- DK ITECH CO., LTD
- Address:No.310 Suntechcity Ii B/D,307-2 Sangdaewon-dong
- TEE LENS CO.
- Address:# 911, Duson-Pastel, Gyesan-dong
- Han-Dok Optec co.,LTD
- Address:540-11, Songsun-Ri, Janggi-Myun
- CnB Optical Company
- Address:No. 9214 Hansin University Yangsandong
- covis optic
- Address:922-1 Samchungri
- changhemuai
- Address:gimpo saudong 1474 guyoung business shop
- I SEE LENS
- Address:GONGHANG DONG
- HANA KOREA OPTIC
- Address:# 703, 536-9 Hongin Officetel Bongmyeong-Dong, Yuseong-Gu
- New World Trade Co.
- Address:104-1313, Hanyang, Daran-dong, Dongan-gu
- Korea Optical Co., Ltd.
- Address:185-2,Oryu-dong ,Jung-gu
- Eco optical CO.,LTD
- Address:288 Yong ma street
- World Vision
- Address:Ran B/d, No 247-3 Saudong Gimapo City, Seoul Korea. 145-801
- Chung Ho Co., Ltd.
- Address:683 Hateri, Eunheunmeun
- Chemiglas Corp.
- Address:25-61,Yusan-dong ,Yangsan-si
- Somo Optical Co.,Ltd.
- Address:984-1,Daechi 3-dong ,Gangnam-gu
- hannam university
- Address:No 26-18, Ho-Dong
- Hana Optical Inc.
- Address:689-6,Geumjeong-dong ,Gunpo-si
- Samyung Trading Co., Ltd.
- Address:8F, Jieun Bldg., 374-5, Seogyo-dong, Mapo-gu
- El-aid Trading Co.
- Address:5th Floor, Sangin B / D, # 1529-11, Sangin Dong
- Fairy Co., LTD
- Address:Hopyung-dong