One problem. One solution. One process.

The Rigby Process® converts high-sulfur marine fuel into IMO 2020 compliant VLSFO or ULSFO. No blending. No workarounds. Just a patented process that works.

Close-up of advanced refining equipment processing fuel under bright industrial lighting.
Close-up of advanced refining equipment processing fuel under bright industrial lighting.
We remove the sulfur. You keep the fuel.

The Rigby Process® takes your HSFO and converts it directly into compliant VLSFO (0.5% S) or ULSFO (0.1% S) — preserving the energy density and properties your engines were designed for.
No distillate blending. No cat fines. 96% mass retention.
-80% SOx emissions -60% NOx emissions 96% Mass retention 99% Product utilization

The fuel that powered the global fleet is no longer permitted.

Since January 2020, HSFO with 3.5% sulfur content cannot be used as marine fuel without a scrubber. Refineries and terminals are sitting on surplus residual material with limited market value. Ship operators need compliant fuel that their engines are actually designed for.
The industry needed a real solution — not a blend, not a compromise.

How it works for you.

You supply 20,000 barrels per day of HSFO. We process it.
You receive 96% back as market-ready VLSFO, plus 2% as recovered sulfur and 1% as naphtha.
You pay a tolling fee — and gain significantly more value than the feedstock was worth before.
One long-term contract. Minimum 20 years. Built so both sides win.

Ready to turn your HSFO into something the market actually wants?

Whether you're a refinery, a terminal, or a shipping company — if you're sitting on HSFO, we should talk.

Let's talk about your feedstock volume, your location, and what the right configuration looks like for your operation.