- Hanilcarbondale, Inc
- Address:Rm 607, Ace Tecno Tower II,212-30, Guro-3dong, Guro-gu
- Damon Corporation
- Address:#32-125 Sang-ga,Siheung 3-dong ,Geumcheon-gu
- Jerim Metal Company
- Address:1098 chimsan-dong
- SAMWON CARBIDE TOOL IND. CO.
- Address:
- Daegun saw co.,
- Address:372, Nowon-dong 3ga, Buk-gu
- Diatech Co., Ltd.
- Address:239-5,Yongjeong-ri ,Gunnae-myeon ,Pocheon-si
- Max DNP Co LTD
- Address:
- Dongshin Diamond Industral Co., Ltd.
- Address:770, Deungwon-ri, Jori-eup, Paju-si
- Prowin Corporation
- Address:#42-9, Wonchang-dong, Seo-ku,
- Apex Construction Co., Ltd
- Address:2nd Floor, #468 Yatapdong, Bundanggu
- Dream diamond tools.co
- Address:117 yulam ri paltan-myun
- Diatop Sama Co., Ltd.
- Address:1062,Woram-dong ,Dalseo-gu
- Won Gong Machinery Co.,Ltd.
- Address:1160,Hadan-dong ,Saha-gu
- Accutech Co., Ltd.
- Address:116B-4L,Namdong industrial, 687-3,Gojan-dong ,Namdong-gu
- Hwa Shin Hi-Steel Co., Ltd,
- Address:707-4,Gojan-dong ,Namdong-gu
- HAN-A Tools Co., Ltd.
- Address:277-1, Janglim2-Dong
- Duckmyung Co., Ltd.
- Address:15-2 Samjeong-dong,Samjeong-dong ,Ojeong-gu, Bucheon-si
- Guju Metal Industry Company.
- Address:1069-2,Woram-dong ,Dalseo-gu
- MICRO & POWER
- Address:184,MOK-KAM STREET,
- JEIL
- Address:kang buk ku wooi dong