KS Certification
Certification history for ordinary, pavement and high-strength concrete.
Explore batching plants, mixers, silos, transport equipment and material suppliers through actual photographs and figures from the company brochure.
Anseong, Dangjin and Yangsan each operate a ready-mixed concrete plant. Dangjin also has an additional asphalt concrete plant.

80 Bosam-ro, Bogae-myeon, Anseong-si
031-675-5070~1

528 Sandan 7-ro, Seongmun-myeon, Dangjin-si
041-356-5220~1

307-3 Sanmak-dong, Yangsan-si
055-364-5388~90
| Batching Plants | 210 m³/h × 2 units |
|---|---|
| Daily Production Capacity | 2,600 m³ · Based on a 9-hour day |
| Annual Production Capacity | 686,400㎥ |
| Transport Fleet | 45 mixer trucks, 6 m³ each |
| Quality Control | Inspection under KS F 4009 · Four quality-control staff |
Figures follow the facilities section of the company brochure. Actual supply conditions must be discussed for each site.

Certification history for ordinary, pavement and high-strength concrete.
Environmental considerations supported by EPD and low-carbon product certification history.
The brochure describes on-site sales support during concrete placement to maintain communication with the site team.
Certification scope varies by product and specification. Applicable, valid certificates are confirmed for each project.
Inspection and separate storage of cement, aggregates and supplementary materials.
Materials move through the transfer system and are weighed to the required mix proportions.
Materials are blended in concrete mixers and product quality is checked under the applicable procedures.
Supply conditions and transport are coordinated with the site placement schedule.
Explore actual Anseong Plant equipment shown in the company brochure.

Production capacity: 210 m³/h

Production capacity: 210 m³/h

Manufacturer: Samjung System

One 500-tonne unit

Two 220-tonne units

One 200-tonne unit

One 70-tonne unit

Processing capacity: 60 m³/h

Agitator type · 6 m³ capacity · 45 vehicles
| Material | Supplier | Location | Supplier Annual Capacity |
|---|---|---|---|
| Ordinary Portland Cement | Hanil Cement | Maepo-eup, Danyang-gun, Chungcheongbuk-do | 8.1 million tonnes |
| Ground Granulated Blast-Furnace Slag | Hanil Cement | Sinpyeong-myeon, Dangjin-si, Chungcheongnam-do | 1 million tonnes |
| Fly Ash | Jeil F&S | Taean-eup, Taean-gun, Chungcheongnam-do | 800,000 tonnes |
| Chemical Admixtures | Dongnam Enterprise | Poseung-eup, Pyeongtaek-si, Gyeonggi-do | 50,000 tonnes |
| Crushed Coarse Aggregate | SP Nature | Samjuk-myeon, Anseong-si, Gyeonggi-do | 800,000 m³ |
| Crushed Fine Aggregate | SP Nature | Samjuk-myeon, Anseong-si, Gyeonggi-do | 500,000 m³ |
Information follows the brochure's raw-material section. Capacities belong to the listed suppliers, not Dohyeon. The facilities section also lists SP Nature and DH as fine-aggregate suppliers.
Placement photographs are from the company brochure. Mix design, strength and required performance are confirmed separately for each project.






Original certificate and test-report images are retained in Korean.
Open the original certificate and test-report images from the company brochure to read them at a larger size.
KS Product Certificate ↗
EPD / Low-Carbon Certificate 1 ↗
EPD / Low-Carbon Certificate 2 ↗
EPD / Low-Carbon Certificate 3 ↗
EPD / Low-Carbon Certificate 4 ↗
Radioactivity (Radium) Test Report 1 ↗
Radioactivity (Radium) Test Report 2 ↗Documents show the history recorded in the brochure. Certification scope and validity for the relevant products and plants are checked at contract and supply stages.





These photographs show material suppliers and are separate from plants owned by Dohyeon.







All three locations—Anseong, Dangjin and Yangsan—operate ready-mix plants. Dangjin additionally operates an asphalt concrete plant, shown separately here.