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Five electrochemical systems built on a single MEA technology — bridging the production and use of hydrogen.

Business 01 · Water Electrolysis

PEMEC — Cation Exchange Membrane Electrolysis

A fluorinated cation exchange membrane and IrO₂ catalyst electrolyze water to produce high-purity green hydrogen. With fast load response, it connects directly to the intermittent power of solar and wind — a core technology for the renewable-energy era.

PEMEC working principle
Working Principle — PEMEC
Anode catalystIrO₂ 1.0 mg/cm²
Cathode catalystPt/C 0.45 mg/cm²
Operating conditions80 ℃ · ambient pressure
Hydrogen output15.2 mL/min·cm²
Performance2.0 A/cm² @ 1.64 V (3.3 W/cm²)
Durability1,000 hours · degradation rate 0.96%/1,000h
99.999%hydrogen purity
1,000hdurability demonstration (incl. load variation)
Renewable energy integration
Renewable-linked green hydrogen
Power grid stabilization
Power grid stabilization (P2G)
Industrial high-purity hydrogen
Industrial high-purity hydrogen
Business 02 · Water Electrolysis

AEMEC — Anion Exchange Membrane Electrolysis

A hydrocarbon-based anion exchange membrane and Ni-Fe non-precious-metal catalyst produce green hydrogen. Combining the economics of alkaline with the performance of PEM — free of iridium and platinum — this next-generation electrolysis is the key to lowering the cost of hydrogen.

AEMEC working principle
Working Principle — AEMEC
Anode catalystNi-Fe 2.0 mg/cm² (non-precious metal)
Cathode catalystPt/C 0.45 mg/cm²
Operating conditions1 M KOH · 60 ℃ · ambient pressure
Performance2.0 A/cm² @ 1.77 V (3.54 W/cm²)
Demonstrated performance2.18 A/cm² @ 1.8 V (2026)
2.7×vs. Germany's Enapter — world-class level
1/1,000catalyst cost vs. precious metal
KRW 12Bnational R&D project overall lead (13 institutions)
Business 03 · Fuel Cell

PEMFC — Hydrogen Fuel Cell

Electricity is generated from the electrochemical reaction of hydrogen and oxygen. With higher energy density than batteries and refueling in minutes, it is the answer wherever long runtime and zero emissions are essential — drones, forklifts, and small mobility.

PEMFC working principle
Working Principle — PEMFC
Anode catalystPt/C 0.2 mg/cm²
Cathode catalystPt/C 0.45 mg/cm²
Operating conditions60 ℃ · ambient pressure
Performance1.0 A/cm² @ 0.66 V · 0.4 A/cm² @ 0.75 V
Durability1,000 hours with no degradation (1 µV/hr) — GORE-type reinforced composite membrane
150 minin-house hydrogen drone flight demonstration — 6× a battery
100kmmaximum flight range
Agricultural spraying drone
Agricultural spraying · crop management
Pipeline inspection drone
Pipeline · facility inspection
Renewable energy site monitoring
Renewable energy site monitoring
Business 04 · Unitized Regenerative Fuel Cell

URFC — Unitized Regenerative Fuel Cell

Water electrolysis (hydrogen production) and fuel cell (power generation) run bidirectionally in a single stack — by day, solar makes hydrogen, and by night, that hydrogen makes electricity. Self-sustaining, off-grid power anywhere, no transmission lines required.

URFC energy cycle
URFC One-Device · Complete Energy Cycle
48 daysoff-grid without recharge (solar recharge)
54 kgstarter model — 1/6 of a competitor (324kg)
100%hydrogen storage — no self-discharge
  • KEY INNOVATION
    • single-stack bidirectional operation (electrolysis + fuel cell integrated)
    • direct solar coupling — no DC/DC converter needed
    • metal hydride storage tank — safe low-pressure storage
  • APPLICATIONS
    • disaster response — emergency power for outages, earthquakes, extreme weather
    • defense — distributed field power with no fuel resupply
    • remote · off-grid — islands, mountains, premium camping
URFC starter model
Starter — 4.6kWh · 54kg
URFC tactical model
Tactical — 8.3kWh · 68kg
URFC base model
Base — 26.2kWh · 150kg
Business 05 · Acid-Base Electrolysis

ABEL — Acid-Base Electrolysis Module · r-TPA

A bipolar membrane (BPM) generates acid (H⁺) and base (OH⁻) from water, with green hydrogen as a byproduct — an eco-friendly electrochemical recycling process that recovers TPA from waste PET with no sulfuric acid, no caustic soda, and no wastewater.

ABEL process configuration
ABEL — Acid·Base Electrolysis process configuration
1/5processing cost (OPEX) vs. conventional process
99.9%recovered TPA purity — in-house demonstrated
0sulfuric acid input · wastewater discharge
  • KEY INNOVATION · Chemical-Free
    • hazardous sulfuric acid (H₂SO₄) → replaced by eco-friendly H⁺ ion production
    • hazardous caustic soda (NaOH) → replaced by eco-friendly OH⁻ ion production
    • green hydrogen (H₂) co-produced as a byproduct — added revenue
  • APPLICATIONS
    • TPA recovery from waste PET recycling — EU · Korea 30% recycled-content mandate by 2030
    • precious metal (PGM) catalyst recovery · processing
    • neutralization of wastewater such as acid mine drainage (AMD)
r-TPA integrated system
r-TPA integrated system (prototype Oct 2026)
Waste PET recycling
Waste PET recycling site
Wastewater neutralization
Acid · base wastewater neutralization

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