Asia’s cash differential for very-low sulphur fuel oil (VLSFO) closed the trading week in a discount to Singapore quotes on Friday as bearish fundamentals weighed. Spot 0.5% VLSFO MFO05-SIN-DIF was pegged at a discount of 45 cents per metric ton, though the product’s front-month crack LFO05SGDUBCMc1 rebounded slightly day-on-day at a premium of $8.41 a …