Asia’s hi-5 fuel oil spread narrowed by over 20% week-on-week, reflecting a weaker market for very low sulphur fuel oil (VLSFO) while high sulphur fuel oil (HSFO) held its ground. The premium of VLSFO over 380-cst HSFO, also known as the hi-5, fell to $87.15 a metric ton on Friday, showed LSEG data...