| Dongbu Construction | Paju Unjung LH | Yunchang Construction | SP flexible joint |
| Dongbu Construction | Chungbuk Eumseong LH | Gunwoo Machinery | SP flexible joint |
| Isu Construction | Daejeon Cheon-dong LH Construction 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 |
| SK E & C | Suwon Jeongja-dong SK | Kim & Lee | SP flexible joint |
| LIG Construction | Seocho-dong LIG Square Site | Hyosung E & C | SP flexible joint |
| LIG Construction | Sadang-dong Site | Hyosung E & C | SP flexible joint |
| LH/Dabo Construction | Busan Jeonggwan-jigu | Seil Machinary | SP flexible joint |
| KCC Construction | Namyangju Byeollae Sweetchen | - | SP flexible joint |
| KCC Construction | Kimcheon Nam-myeon LH | Seoryung Engineering | SP flexible joint |
| GS E & C | Suwon Gwangyo Edu Town | Dongsan Tech | SP flexible joint |
| GS E & C | Mugeo Jai | Deokshin Construction | SP flexible joint |