Hin Leong Trading's collapse in March paved the way for three major international bunker suppliers to move into the Singapore market in a big way.

The fall of the marine-fuels supplier and commodities trader prompted fears that some local bunker players might be muscled out of the market.

Vitol, Minerva Bunkering, and the TFG Marine joint venture of Trafigura, Frontline and Golden Ocean, have secured permits from the Maritime and Port Authority of Singapore (MPA) allowing them to sell marine fuel oil as bunker suppliers and operate their own bunker tankers.