High wind was forecast for July 4-6 while thunderstorms were July 7-8, according to Zhoushan Marine Station's meteorological services.

Local media reported that the refinery has been restarting units since late June following the maintenance which could result in flaring.

The HSFO market was well supplied in June as Singapore saw an increase in a cargo inflow from the Middle East, market sources said, adding Asia could be one of the major destinations of Russian fuel oil cargoes.

The Tuapse refinery only recently returned online after halting crude intake mid-March because it could not readily ship its production amid Western sanctions and self-sanctioning by international buyers following the invasion of Ukraine.

Despite deteriorating macroeconomic conditions shown by the US ISM Manufacturing Index on July 1, oil prices remain supported, with OPEC+ struggling to meet their supply increases and disruptions in Libya and Ecuador continuing to show the fragility of the supply picture.

Total federal oil exports rose 2.2% to 3.373 million b/d, oil ministry data showed July 1

Increased costs of hedging and executing swap trades has also caused a major blow to liquidity, as exchanges such as Europe's Intercontinental Exchange hiked margin calls.

*Lack of cutterstocks leaves Singapore VLSFO tight *Limited European VLSFO as refiners run sweet crude *Lack of diesel supports US Pacific NW VLSFO