- ESAI Corp.
- Address:250, Ripjung-dong,
- ES Industrial Systems
- Address:181, Samsung-ri, Mokcheon-eup
- Hansung T&I Co., Ltd.
- Address:336 842,15 dongsanri.tangjeong-myon ,asansi.chongcheongnam-do
- Trans World
- Address:461-1,GUAM-RI
- PNT Corp.
- Address:Jaan-Ri
- Il Shin Machinery Works Co., Ltd
- Address:993-27,Woogye-ri,Sangdong-myen,
- SAMSAN INC.
- Address:910 Ho, Chung Guang Nobleheim B / D, 447-3 Chunho-dong, Gangdong-gu,
- NAM KYUNG CO., LTD.
- Address:131-1, Sachang-ri, Yanggam-myeon,
- Samwoo Machnical Co.,Ltd
- Address:739-5,Yonggang-ri ,Gwangyang-eup ,Gwangyang-si
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