REPORT | HHO TECHNOLOGY FROM A VIETNAMESE STARTUP
Mr. Nguyen Thien Binh, Founder of HB-GREEN, speaks at Vietnam – Korea Hydrogen Workshop 2025
Ho Chi Minh City, July 16, 2025 – During the Vietnam – Korea Hydrogen Workshop 2025, the presentation by Mr. Nguyen Thien Binh, founder of HB-GREEN, offered a practical and grounded perspective: that hydrogen deployment doesn’t always require megawatt-scale projects or billion-dollar infrastructure — it can start with small, flexible, on-site equipment built for real-world needs.
From a small workshop to big energy questions
In a 20-minute presentation, Mr. Binh introduced HB-GREEN, a Vietnamese company based in Thu Duc City, specializing in on-site water electrolysis to produce Oxy-Hydrogen (HHO) gas for use in welding, heating, engine cleaning, and small-scale industrial applications.
The key differentiator of HB-GREEN’s technology is its non-pressurized operation. The gas is produced and used on-site without the need for high-pressure storage, thus reducing safety risks and infrastructure costs — a major concern in the hydrogen sector, especially at small-to-medium scales.
Homegrown design, competitive performance
HB-GREEN’s proprietary Low Current Leakage Cell (LCLC) was the technical highlight. This design allows the system to achieve up to 88% energy efficiency, producing approximately 6.3 liters of HHO gas per minute for every 1 kWh of electricity.
The units can run continuously for more than 4 hours, powered by regular electrical outlets and clean water. They require almost no hardware maintenance aside from electrolyte replacement every 6–12 months.
Proven uses and sustainable roadmap
HB-GREEN’s systems are already in use across sectors, including jewelry processing, instrument manufacturing, auto engine cleaning, and light metalwork. The appeal lies in affordability, ease of use, and operational safety — key requirements for small businesses and workshops.
Looking ahead, Mr. Binh outlined the company’s roadmap for 2025–2028:
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Strengthening domestic partnerships, particularly with firms like PANDORA
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Scaling up to 20–100kW electrolysers for use in glass, food, and medical waste sectors
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Developing membrane-based electrolysers for pure hydrogen production in fertilizer and metal industries
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Expanding to international markets, especially Thailand, Korea, and China
Contributing to Vietnam’s hydrogen ecosystem
Mr. Binh concluded by affirming HB-GREEN’s modest but purposeful role in Vietnam’s energy transition:
“We’re a small team, but we’re trying to do what we can — building devices that work, that people can afford, and that help cut emissions in everyday operations.”
He also expressed hopes to collaborate with Korean companies, research institutes, and Vietnamese government bodies to bring practical hydrogen applications to broader markets.
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