A classification society report suggests that global regulation from the International Maritime organisation could transform demand for low‑emission marine fuels, increasing what the industry uses for bunkering by mid‑century.

DNV told industry audiences on 26 August that, under a scenario in which IMO member states advance a global regulatory framework to limit greenhouse‑gas emissions, bunker demand for low‑emission fuels could be more than five times higher by 2050. Sources published the society's findings on 28 August 2026.

The analysis places the size of a future low‑emission bunker market in stark contrast with present volumes, tying the expansion directly to regulatory ambition at the United Nations agency. DNV framed the projection as conditional: the increase depends on member states pushing ahead with a cohesive global approach to cutting shipping emissions.

The note recalled that the IMO approved a Net‑Zero Framework in April 2025, but said the agency has since faced delays in adopting the measures needed to implement that framework. DNV presented the fivefold estimate in this context, underlining that regulatory progress, or the lack of it, is central to the fuel outlook.

Regulatory clarity and market signals

DNV’s estimate indicates that a clear global rule set would send an immediate signal to fuel producers, ports and ship operators that demand for alternatives to conventional marine fuel will intensify through to 2050. The society’s message, as reported, is that a unified IMO approach would alter investment calculations throughout the supply chain.

Timing and conditionality

The report emphasises timing: the five‑times figure is an outcome tied to the pace and scope of international regulation rather than an automatic market response. DNV dated its commentary 26 August, and sources carried the summary on 28 August 2026, presenting the projection as contingent on future policy choices by IMO members.

The society did not, in the published summary, specify precise fuel mixes or the split between different low‑emission options, instead highlighting the scale of potential demand growth if the Net‑Zero Framework is taken forward. That omission means market participants must still await more detailed analysis to gauge infrastructure and feedstock requirements.

The projection underlines a basic policy choice facing member states: moving quickly to establish a binding global architecture consistent with the Net‑Zero Framework, or allowing fragmented regional and commercial initiatives to determine the speed of uptake. DNV’s assessment, as presented in the report, frames those options in terms of the difference they would make to future bunker volumes.

Taken at face value, the society’s calculation presents a scenario in which regulatory leadership by the IMO would create a markedly larger market for low‑emission marine fuels by 2050 than today’s consumption. The scale of the potential increase, and the conditional nature of the finding, places the focus back on international discussions over how and when the Net‑Zero Framework should be operationalised.