Group 1 - Fuel oil futures main contract showed weak fluctuations, closing at 2784.00 yuan with a decline of 1.21% [1] - Demand remains sluggish in the Asian fuel oil market, with Northeast Asian refineries experiencing slower sales [1] - Taiwan's Formosa Petrochemical's 76,000 barrels per day residue fluid catalytic cracking unit is under maintenance until the end of October, impacting supply [1] Group 2 - High sulfur fuel oil prices are influenced by ongoing sanctions and recent attacks on Russian refineries, leading to a significant increase in high sulfur exports to India [2] - Singapore's fuel oil inventory has decreased by 4.2%, while ARA and Fujairah inventories have also seen reductions [2] - The EU is expected to introduce the 19th round of sanctions against Russia in the coming weeks, which will be a key focus for high sulfur fuel oil [2]