Vessels with scrubbers or better fuel efficiency are still expected to reap big benefits from IMO 2020 even though bunker prices have weakened recently in line with crude futures, according to Alphatanker.

Weak bunker prices would prolong the payback time for investments in eco-tonnage or exhaust gas cleaning technology, both of which aimed at reducing overall fuel costs for shipowners.

Assessments made by Ship & Bunker show the average global bunker price is about $370 per tonne this month, its year-to-date low, with oil-demand worries amid trade tension pressuring crude futures.