| Year | name | Construction |
|---|---|---|
| 2024 | Ssangyong C&E Donghae Plant | 7K 1st stage Cyclone Dipping Pipe replacement |
| Ssangyong C&E Donghae Plant | 5K Cooler No. 2 repair work | |
| Ssangyong C&E Donghae Plant | 1 kiln cooler 3rd duct dust setting chamber installation work | |
| Halla Cement | K2 PH Cyclone & Pyroclone, TAD manufacturing installation and demolition work | |
| Halla Cement | Production and installation of K2 PH TAD & PAYROBOX | |
| Sampyo Resource Development | Block 49 water port and surge hopper wall repair | |
| Sampyo Resource Development | Block 49 Gyratory Crusher overhole construction | |
| Sampyo Resource Development | Block 49 Hammer Crusher overhole construction |
| Year | name | Construction |
|---|---|---|
| 2023 | DB Metal Donghae Plant | electric furnace raw material input pipe repair (2nd) |
| DB Metal Donghae Plant | R-3 inspection stand repair | |
| DB Metal Donghae Plant | ULPC mechanical equipment repair | |
| DB Metal Donghae Plant | electric furnace No. 4 raw material transportation facility repair | |
| DB Metal Donghae Plant | electric furnace No. 8 and 9 raw material transportation facility repair | |
| DB Metal Donghae Plant | product crushing facility repair | |
| DB Metal Donghae Plant | carbon case manufacturing plant hoist repair and additional construction | |
| DB Metal Donghae Plant | conveyor safety protection equipment repair | |
| Sampyo Cement Samcheok Plant | 1-7 kiln safety facility improvement | |
| Sampyo Cement Samcheok Plant | C/B tension part improvement | |
| Sampyo Cement Samcheok Plant | 4,5K AF main burner input work and machine installation | |
| Sampyo Resource Development | water port UBLRA repair | |
| Sampyo Resource Development | Block 49 Water Port and Low-Light Hopper Wall Repair Works | |
| Sampyo Resource Development | Block 47 Light District Hammer Crusher Antibody Work | |
| Sampyo Resource Development | Block 47 Metropolitan safety facilities and secondary crusher repair works | |
| Sampyo Resource Development | Block 49 Metropolitan Area CC No. 1 and No. 2 Ring Liner Replacement Corporation | |
| Sampyo Resource Development | Block 49 Maintenance of A/F Casing & Liner in the upper part of the mining area | |
| Sampyo Resource Development | Roof installation work for 49 mine area H2 | |
| Sampyo Resource Development | Block 49 Installation of Safety Facilities for Gas Equipment in Gwang-gu | |
| Sampyo Resource Development | Improvement of Gyratory Crusher in 49 Metropolitan Areas | |
| Sampyo Resource Development | Block 49 Light District Decelerator Overhole Construction | |
| Ssangyong C&E Donghae Plant | Cement Cooler Manufacturing Delivery (200t/hrx1) | |
| Ssangyong C&E Donghae Plant | 5 kiln clinker decorative vibrating screen replacement | |
| Ssangyong C&E Donghae Plant | 6 kiln 1st stage Cyclone Dipping Pipe Segment replacement | |
| Ssangyong C&E Donghae Plant | 4 kiln 1st stage Cyclone Dipping Pipe Segment replacement | |
| Ssangyong C&E Donghae Plant | No.2 Cooler Support & Expension Manufacturing and delivery | |
| Ssangyong C&E Donghae Plant | 7K No. 2 tire shell crack repair | |
| Navy 1st | Floating fountain installation work at Navy 1st Fleet 23-building physical training center | |
| Chang Co., Ltd. | Bongpyeong Training Center’s new construction and mechanical facility construction | |
| SP Environ | Manufactured and installed SP Environ’s SCR Reactor steel structure | |
| Sahmyook Elementary School | Toilet repair and mechanical equipment construction at Sahmyook Elementary School and Donghae Sahmyook Elementary School | |
| Donghae Middle School | Remodeling Machinery and Equipment Corporation of Government Offices |
| Year | name | Construction |
|---|---|---|
| 2022 | DB Metal Donghae Plant | No. 2, 24, and 25 belt conveyor structure repair |
| DB Metal Donghae Plant | R-3 cooling hood and duct replacement | |
| DB Metal Donghae Plant | R-3 bucket elevator repair | |
| DB Metal Donghae Plant | ULPC Bucket Elevator repair | |
| DB Metal Donghae Plant | air supply facility repair and auxiliary construction | |
| DB Metal Donghae Plant | raw material transportation facility safety railing repair and auxiliary construction | |
| DB Metal Donghae Plant | Electric Furnace No. 1 shaft construction - Manufacturing and replacement of water-cooling piping and inspection table | |
| DB Metal Donghae Plant | main line machine repair and auxiliary construction | |
| DB Metal Donghae Plant | dust collector No. 5 repair | |
| DB Metal Donghae Plant | dust collection facility repair | |
| DB Metal Donghae Plant | crushing facility repair | |
| Sampyo Cement Samcheok Plant | cement manufacturing process dust commercialization equipment installation | |
| Sampyo Cement Samcheok Plant | No. 6 cement mill main bag filter chain conveyor repair | |
| Sampyo Cement Samcheok Plant | Block 45 dust tank BCT line new installation | |
| Sampyo Resource Development | Block 49 water port and surge hopper wall repair | |
| Sampyo Resource Development | Cone Crusher overhole | |
| Sampyo Resource Development | Block 49 fueling safety facility installation | |
| Ssangyong C&E Donghae Plant | Expansion of safety facilities | |
| Ssangyong C&E Donghae Plant | Synthetic resin irrationality improvement for Ssangyong C&E Donghae Plant Donghae Production Team 2 | |
| Ssangyong C&E Donghae Plant | #4K steel frame production | |
| Ssangyong C&E Donghae Plant | Shipping machine manufacturing and delivery | |
| Ssangyong C&E Donghae Plant | kiln crack repair | |
| Navy 1st | Pump piping repair work at Navy 1st Fleet 22-building physical training center |
| Year | name | Construction |
|---|---|---|
| 2021 | Ssangyong C&E Donghae Factory | Production and installation of C/MC Cyclone Separator |
| Sampyo Cement Samcheok Plant | #6 CL Bypass piping work | |
| Sampyo Cement Samcheok Plant | #4 Cement mill internal liner replacement | |
| DB Metal Donghae Plant | electric furnace No. 12 shaft construction | |
| DB Metal Donghae Plant | Inspection table and water-cooling piping replacement | |
| Sampyo Cement Samcheok Plant | 7K 2 Line Cyclone remodeling | |
| Ssangyong Donghae Plant | #1 kiln C Line H raw material piping | |
| Ssangyong C&E Donghae Port Factory | Manufacturing and installation of Ssangyong Donghae Port C/M Cyclone Separator | |
| DB Metal Donghae Plant | Electric Furnace No. 4 Crushing Tank repair and auxiliary construction |
| Year | name | Construction |
|---|---|---|
| 2020~2019 | DB Metal Donghae Plant | No. 1 Production and replacement of receiving hopper for product breaking facilities |
| Ssangyong C&E Donghae Factory | #7Kiln IDF and Impella replacement work | |
| Gangneung, Korea's Southeast Power Co., Ltd | Expansion of PELLET fuel transportation facilities | |
| Sampyo Resource Development | #49 Ublra renovation work | |
| Sampyo Cement Samcheok Plant | #4 Cooler repair work | |
| Ssangyong C&E Donghae Port Factory | No. 5 Manufacturing and installation of C/MC Cyclone Separator | |
| DB Metal Donghae Plant | Replacement of Taped Ring for Electric Furnace No. 12 | |
| Korea East-West Power Co., Ltd Donghae | Capacity increase improvement work | |
| Ssangyong C&E Donghae Plant | #1Kiln C Line H raw material piping construction | |
| Sampyo Cement Samcheok Plant | 6K CBS Capacity Increase Construction | |
| Ssangyong C&E Donghae Plant | #3 Kiln Silo Production and Installation Work |