Clean Marine is gearing up for a “flurry” of scrubber orders as it bets on continued big differences in the price of low-sulphur and cheaper high-sulphur bunkers.

This is known as the Hi5 spread, and it has hit record highs this year.

“Hi5 spreads have blown wide open for sustained periods,” the company said.

Singapore’s Hi5 spread leapt from less than $100 per tonne in early May to an all-time record of $575 per tonne in July.