During the night session, vegetable oil futures prices declined, while palm oil struggled to sustain gains during the day session. The U.S. Environmental Protection Agency is set to submit a new biofuel blending mandate proposal to the White House on Wednesday, with the rule expected to be finalized by the end of March. This development pushed U.S. soybean oil futures above 60 cents per pound. Amid market tugs-of-war between bullish and bearish factors, vegetable oil prices are experiencing volatile movements.On the spot market, there was a surge in trading volumes yesterday, with traders replenishing positions for March contracts after the holiday. As crush plants crushing volumes in February are currently higher than pre-holiday expectations, crush plants are actively selling. However, trading activity remains subdued, and spot basis levels continue to face some pressure.