Sinanju Tankers Holdings is one of the larger players in Singapore’s huge bunker tanker industry, with a fleet of 13 vessels on the water and one more on the way.

Yet, general manger Desmond Chong and corporate development advisor Marianne Choo claim to be as much in the dark as anyone else in shipping as to whether low-sulphur fuel oil (LSFO) will trump high-sulphur fuel oil (HSFO) after the sulphur cap comes into force on 1 January 2020.