| 31 | PUSAN CAST IRON | Jang Sehoon | Manufacture of parts and accessories for motor engines(new products) | accessories for motor engines | 051-780-5914 |
| 32 | Namwoong Electronics Co., Ltd. | Jung Namchae | Manufacture of pipes and tubes, of steel | Flange (pipes) | |
| 33 | HYUNDAI RB | Lee Sangchul | Manufacture of pipes and tubes, of steel | Steel pipe | 052-238-6336 |
| 34 | Gwangmyeong Flexible | Cheon Jungmin | Manufacture of pipes and tubes, of steel | Metal hose | 052-258-3537 |
| 35 | PSC | Seo Yongwon | Manufacture of pipes and tubes, of steel | Piping spool, pressure vessel, etc. | 070-4848-0613 |
| 36 | HANCHANG | Kim Minok | Manufacture of pipes and tubes, of steel | Construction | 052-265-0014 |
| 37 | MYUNGJUNG INDUSTRY | Lee Myunghee | Manufacture of pipes and tubes, of steel | Flange (pipes) | 052-285-1204 |
| 38 | Hyundai Steel | Woo Yuchul | Manufacture of pipes and tubes, of steel | Steel pipe | 052-280-0114 |
| 39 | National Oilwell Varco Korea Co., Ltd. | 진로날도우니 | Manufacture of sections for ships | Ship crane ship structure | 052-240-9442 |
| 40 | Daesongtech | Bae Haedong | Manufacture of sections for ships | Sections for ships | 052-238-4117 |
