Asia’s spot differentials for high sulphur fuel oil (HSFO) softened on Monday amid weakness in crude oil benchmarks and the absence of window trades for a second straight session.

There were no bids for a 180-cst grade of HSFO against three offers, while several 380-cst bids and offers did not translate into any deals, market participants said.

Cash differentials for 180-cst HSFO were down 25 cents to a discount of $3.20 per ton, while differentials for very low sulphur fuel oil (VLSFO) traded at a $5.70 per ton, down from $5.95 in the previous session.

Cash differential for 380-cst was also down 15 cents at 85 cents per ton on Monday.