The construction industry has just taken a decisive step towards real-world decarbonisation  and the maritime sector should be paying attention. Holcim UK, a major player in energy-intensive quarrying and construction, has announced the national rollout of Fuelre4m’s Re4mx fuel-conditioning technology across more than 200 sites, following three years of real-world testing. The results:

• Up to 20% reduction in fuel consumption
• Up to 23% fewer emissions from fuel burned
• Zero engine modifications or operational disruption

These are outcomes maritime has long sought and now, they’ve been proven at scale.

This follows the announcement that Bontrup Logistics, a specialist in bulk logistics and maritime transportation, which ships more than 12 million tonnes of rock products per year, selected Fuelre4m’s high efficiency fuel reforming technology to power its bulk carrier, Bontrup Pearl, to support a major climate resilience initiative in the Pacific. This follows a three-month trial of Fuelre4m technology on board the company’s Yeoman Bridge bulk carrier.

The latest move by Holcim UK sets a new benchmark for what practical, measurable decarbonisation looks like when fully embraced. With environmental regulation tightening and fuel efficiency becoming a commercial imperative, shipping can no longer afford to view land-based solutions as irrelevant. This is a clear example of technology transfer with real impact and raises an important question for the maritime sector: if it works this well in construction, why not at sea?

Re4mx works by enhancing the combustion efficiency of existing fuels, delivering cleaner burns, lower emissions, and reduced fuel use  without changing vessel infrastructure. In both shipping and construction, this means results without downtime.

Edern Lalanne, Holcim UK Supply Chain Director, said: “This agreement is the result of meticulous testing, collaboration, and operational learning. We’ve seen consistent results with Re4mx across a wide range of use cases, and it aligns directly with our commitment to sustainable innovation and operational excellence. This is about measurable outcomes, not promises, and Fuelre4m has delivered both the data and the support to back it up. This is part of our mission to make sustainable construction a reality and continues our journey to achieve net-zero by 2050. The introduction of low carbon fuels is a key part of this strategy.”

Rob Mortimer, CEO of Fuelre4m, added: “We’ve always believed in practical decarbonisation, not tomorrow, not theoretical, but right now. Holcim’s decision to roll out Re4mx at scale shows how serious industry players can move quickly when the data supports the decision. For shipping, the pathway is already there and it’s operational.”

Fuelre4m’s Re4mx solution is designed as a fully integrated system that fits seamlessly into existing operations. The technology is delivered through sealed containers, with a small dose added directly to fuel on board each vessel. Emissions performance is tracked via a digital dashboard, allowing operators to monitor reductions in fuel consumption and emissions in real time.

The solution is compatible with standard fuel flow and engine monitoring tools, ensuring results reflect normal working conditions without requiring any changes to infrastructure. Fuelre4m also supports its partners with inventory management, logistics coordination, and on-site service providing a practical, scalable approach to decarbonisation.Re4mx will be distributed site-by-site across Holcim’s network, through Fuelre4m’s VIRDIS (Virtual Distribution) system,

This model is already in place across maritime operations globally, with established deployment in Europe, the Middle East, and Asia-Pacific.

Fuelre4m’s Rob Mortimer said: “With the IMO tightening compliance, charterers demanding ESG performance, and fuel prices rising, the time for hesitation is over. Holcim’s rollout offers a clear blueprint for how operational industries can cut emissions and fuel use immediately while requiring no retrofits and no waiting for new fuels.

Shipping faces the same pressures. It has the same needs. And now, it has the same opportunity. The question is no longer whether it works, it’s whether maritime is ready to act.”