| Isu Construction | Cheon-dong Cheon-dong LH Construction work site | Samjung Tech | SP flexible joint |
| Korea Land & Housing Corporation | Naju Sampo Hyeoksin City, Jeonnam | Bosung Engineering | SP flexible joint |
| Ssangyong Construction | Gunsan Ssangyong Yega, Jeonbuk | Jinheung Engineering | SP flexible joint |
| Jina Construction | Gwangju Seonam-dong Jinarichae | Daegwang ENG | SP flexible joint |
| Daesung | Jeongpyeong Daesung VertHill, Chung-buk | Daegwang ENG | SP flexible joint |
| Hana Construction | Daegu Dalseo-gu Hararium | Daegwang ENG | SP flexible joint |
| Woomi Construction | Cheongju Sangdang Umirin | Daegwang ENG | SP flexible joint |
| Hana Construction | Gunsan Sanbuk Hanarium | Daegwang ENG | SP flexible joint |
| Woomi Construction | Eijeongbu Peutirin, Gyeonggi | Daegwang ENG | SP flexible joint |
| Shinil | Icheon Shinil Happy Tree Site | Hyegwang ENC | SP flexible joint |
| LIG Construction | Chungbuk Eumseong LH | Gunwoo Machinery | SP flexible joint |
| Isu Construction | Icheon Angheong-dong Ishin Construction | Bosung Plant | SP flexible joint |
| Gyeongnam | Gangseo-gu Magok 6-danji | Gwangjang EMC | SP flexible joint |
| Cheil Construction | Iksan Mohyun-dong Baesan Jeil Otu Grantae | Jeonbuk Fire Protecting | SP flexible joint |
| Samhwan Enterprises | Sangju LH Samhwan Camyu, Gyeongbuk | Yoosung Construction | SP flexible joint |
| Ultra Construction | Incheon Namdong-gu Guwol-dong Site | Yoosung Construction | SP flexible joint |
| Korea Land & Housing Corporation | Mokpo Jusanggwan LH | Yoosung Construction | SP flexible joint |
| Yojin Construction | Suwon Homaesil Yojin | Bosung Plant | SP flexible joint |
| Woolim Construction | Goyang Samson Housing Development District | Dowu Plan | SP flexible joint |
| Hyundai Industrial Development | Cheongdam i-Park | Seil ENS | SP flexible joint |