Decarbonising
steel.

Cullbeck is developing breakthrough low-carbon ironmaking technology for the world's
hardest-to-abate industry. We're building our demonstration plant at Glenbrook, New Zealand and we're just getting started.

Cullbeck is developing breakthrough low-carbon ironmaking technology for the world's
hardest-to-abate industry. We're building our demonstration plant at Glenbrook, New Zealand and we're just getting started.

$20M

$20M

$20M

Raised. Demonstration plant funded and in development

2025

2025

2025

Founded. Built by industry veterans with decades in steel and heavy industry.

2.5 yrs

2.5 yrs

2.5 yrs

Runway secured to reach demonstration milestones

Glenbrook

Glenbrook

Glenbrook

Auckland. Home of New Zealand Steel — and our first plant

image

Steel is one of the world's biggest emissions problems. We're solving it.

Global steel production accounts for roughly 8% of CO2 emissions worldwide. Decarbonising it requires more than incremental improvement — it requires a fundamentally different approach.

Our technology converts titanomagnetite (TTM) ironsand or crushed rock ore into Direct Reduced Iron in ~150 seconds (vs 8-10 hours conventionally) — solving the processing problem for multi-billion tonne TTM resources across APAC and beyond, that current DRI routes can't handle. The reactor uses 100% hydrogen and the process is entirely modular allowing for low-cost initial installations and scale-up through replication.

a building with wavy lines on it against a blue sky

"The steel industry has been exploring decarbonisation solutions for decades.
We've decided to take the lead"

Martin Hacon, CEO

Steel is one of the hardest industries on earth to decarbonise. Here is how we are doing it.

The Problem

Our Technology

The Plant

Our Roadmap

low angle photo of beige concrete building under cloudy sky
a laptop computer sitting on top of a wooden desk
robot and human hands reaching toward ai text

The Problem

Steel production is responsible for around 8% of global CO2 emissions. Standard natural gas DRI technologies use high grade magnetite; and require expensive pelletisation. Titanomagnetite like New Zealand's ironsand is unusable in existing systems.

The Problem

Our Technology

The Plant

Our Roadmap

low angle photo of beige concrete building under cloudy sky
a laptop computer sitting on top of a wooden desk
robot and human hands reaching toward ai text

The Problem

Steel production is responsible for around 8% of global CO2 emissions. Standard natural gas DRI technologies use high grade magnetite; and require expensive pelletisation. Titanomagnetite like New Zealand's ironsand is unusable in existing systems.

News and Updates

Follow our progress as we move from concept to plant.

Frequently asked questions

Still have questions?

What is Cullbeck building?

A process that converts low-cost TTM ore into high purity iron and critical minerals including vanadium and titanium.

Where are you based?

We're based in Auckland, New Zealand.

Who is behind Cullbeck?

CullBeck was founded by Martin Hacon, Chris Jansen, Bavinesh Maisuria, Chris Bumby and Matt Watson.

Are you hiring?

Yes - we're looking for engineers and technicians to help design and build our demonstration plant at Glenbrook.

Who are your investors?

Outset Ventures, Climate Venture Capital Fund, Punakaiki Fund and K1W1.

Frequently asked questions

Still have questions?

What is Cullbeck building?

A process that converts low-cost TTM ore into high purity iron and critical minerals including vanadium and titanium.

Where are you based?

We're based in Auckland, New Zealand.

Who is behind Cullbeck?

CullBeck was founded by Martin Hacon, Chris Jansen, Bavinesh Maisuria, Chris Bumby and Matt Watson.

Are you hiring?

Yes - we're looking for engineers and technicians to help design and build our demonstration plant at Glenbrook.

Who are your investors?

Outset Ventures, Climate Venture Capital Fund, Punakaiki Fund and K1W1.

Frequently asked questions

Still have questions?

What is Cullbeck building?

A process that converts low-cost TTM ore into high purity iron and critical minerals including vanadium and titanium.

Where are you based?

We're based in Auckland, New Zealand.

Who is behind Cullbeck?

CullBeck was founded by Martin Hacon, Chris Jansen, Bavinesh Maisuria, Chris Bumby and Matt Watson.

Are you hiring?

Yes - we're looking for engineers and technicians to help design and build our demonstration plant at Glenbrook.

Who are your investors?

Outset Ventures, Climate Venture Capital Fund, Punakaiki Fund and K1W1.

the cullbeck team at the plant

Want to be a part of it?

We're building a small, high-calibre team to bring this to life. If you've spent your career in heavy industry and you're ready to do something that actually matters, we'd like to talk.