| LH Daewoo E & C | Hanam-si Mangwol-dong A18BL Daewoo E & C | Daejung ENC | SP Flexible Joint |
| POSCO | Asan Eupbong-myeon Dongam-ri POSCO The, Chungnam | Daehan ENG | SP Flexible Joint |
| Line Construction | Tongyeong Yongnam-myeon Dongdal-ri Easyvia 2 cha, Gyeongnam | Daehan ENG | SP Flexible Joint |
| Yojin Construction | Goyang Yojin Y City, Baekseok-dong, Ilsan Dong-gu, Gyunggi | Daehan ENG | SP Flexible Joint |
| Line Construction | Busan Gijang-gun Mojeon-ri, Jeonggwan-myeon | Daehan ENG | SP Flexible Joint |
| LH LIG Construction | Chungbuk Eumseong Geumseong-ri LIG | Gunwoo Machinery | SP Flexible Joint |
| POSCO E & C | Miryang POSCO A & C | Yoosung Enterprise | SP Flexible Joint |
| Samhwan Camyu | Yangsan-si Mulgeum-dong A4 Block Samhwan Camyu, Gyeongnam | Yoosung Enterprise | SP Flexible Joint |
| Keangnam Enterprises | Geoje Gyeongnam Honorsville | Yoosung Enterprise | SP Flexible Joint |
| Hyundai E&C | Jinju Munsan-eup Somun-ri Hyucksin City | Seil Machinary | SP Flexible Joint |
| POSCO | Asan-si Eumbong-myeong Dongam-ri Poscorate City 3cha | Seil Machinary | SP Flexible Joint |
| LH Daebo Construction | Mokpo-si Daeseong-dong, Jeonnam | Seil Machinary | SP Flexible Joint |
| LH Limkwang E & C | Hanam-si Misa-jigu A16 block Limkwang, Gyeonggi | Bosung Tech | SP Flexible Joint |
| Sejong Construction | Suncheon-si Gangbyeon-ro Ohcheon-jigu Gold class, Jeonnam | Daegwang ENG | SP Flexible Joint |
| Daebang Construction | Naju-si Daeho-dong Daebang Noble Land, Jeonnam | Daegwang ENG | SP Flexible Joint |
| Daesung Construction | Jeungpyeong, Chungbuk | Daegwang ENG | SP Flexible Joint |
| Woomi Construction | Cheongju Sangdang-gu Geumcheon Umirin Apartment | Daegwang ENG | SP Flexible Joint |
| Hana Construction | Daegu Dalseong-gun Hyeongpung-myeon Hanarium | Daegwang ENG | SP Flexible Joint |
| Hanwha E & C | Mapo-gu Sangam-dong Hanwha Construction Obelisk | Sungbo Engineering | SP Flexible Joint |
| LH KR Construction | Daejeon Seo-gu Gwanjeo-dong KR Construction | Sungbo Engineering | SP Flexible Joint |