Advanced Materials & Technology
The group's future growth engine — GFRP rebar, lightweight aggregate, nano synthesis, battery fire suppression
The GFRP rebar, lightweight aggregate and nano-synthesis of affiliate DongShin Materials, and EF-LBF20 lithium-ion battery fire suppression from affiliate EF Hydro.
DongShin Materials
GFRP rebar (glass-fiber reinforced plastic)
A rust-free, strong, lightweight rebar replacement for construction & civil works
Made of 75–80% corrosion-resistant glass fiber (E-CR glass) and 20–25% durable thermoset resin (vinyl ester or epoxy).
Advantages
- Zero rust / zero conductivity / low thermal transfer
- 2–3× the tensile strength of steel (400–600 vs 800–1,200 MPa)
- ¼ the weight of steel — faster install, lower logistics/labor/equipment cost
- 65–75% lower carbon — adoption expanding across KEC, KR, KEPCO and municipalities
- Priced below steel rebar, on a stable raw-material base
Market & competitiveness
- Under 1% of Korea's ₩5.4T rebar market today — ~10% expected within 5 years
- 500+ North American bridges completed; expanding in the Middle East led by Aramco
- Only 4 of ~30 Korean makers meet national standards — we lead on quality and price
Applications
DongShin Materials
Lightweight aggregate
High-strength lightweight aggregate from red mud
Carbon-neutrality mandates demand high-strength lightweight materials, yet 100% of Korea's lightweight aggregate is imported. Combining red mud with a special admixture cuts construction cost versus imports.
Product properties
| Item | KS standard | Ours | Note |
|---|---|---|---|
| Specific gravity | 1 | 0.4 ~ 0.6 | Light enough to float |
| Strength | 98–245 kg/cm² | 258 ~ 303 /cm² | Exceeds KS |
| Sound reduction | −30 dB | −43 dB | Exceeds KS |
| Insulation | 100 | 480 | 4× the KS baseline |
Advantages
- Insulation, soundproofing, eco-friendly, absorbent, stable, durable, light, strong, recyclable, fire-resistant, space-gaining, cost-saving
- At 1,200°C for 30 min only 3 mm conducts heat (ordinary brick ignites within 5 min)
- Red-mud radon test at 32.1 Bq, well below the 148 Bq limit
DongShin Materials
Core technology — nano synthesis
Nano-material synthesis
Synthesizing nano materials into base substances and polymers yields higher-function, smaller, longer-life, high-value industrial products — a scalable, chemical-free, fully in-house technology.
Technical spec
- Particle size 1–10 nm and up — controllable uniformity, distribution and dispersion
- Purity up to ~99.99%
- Throughput 2–100 kg/hr (nanoparticle + carrier)
- Our process: low-cost, eco-friendly, simple, crystal-face-controllable, uniform, productive, mixable
Commercial & development products
EF Hydro
Lithium-ion battery fire suppressant — EF-LBF20
A battery-specific agent that stops even thermal-runaway ignition
Li-ion fires carry Class A/B/C/D characteristics at once, yet no market agent could handle thermal-runaway ignition. EF-LBF20 smothers, cools and deodorizes — melting glass-like over the fuel source to cut oxygen, and absorbing heat via high specific heat to prevent re-ignition.
Covers all fire classes (A · B · C · D)
- A — ordinary combustibles (wood, cloth, paper)
- B — flammable liquids (oil, paint)
- C — electrical fires
- D — metal fires
Repeatable extinguishing — out in 1–3 min, no re-ignition
Repeated testing to NTA 8133 confirmed extinguishing within 1–3 minutes with no subsequent re-ignition.
Applications
