Asia’s very low sulphur fuel oil market strengthened on Monday as a firmer trade emerged, while high sulphur fuel oil was little changed. The 0.5% VLSFO cash differential MFO05-SIN-DIF climbed to a premium of $6 a metric ton, while the crack spread LFO05SGDUBCMc1 rose to a premium of $11.03 a barrel. Meanwhile, spot bids for …