January 6th news: On January 6th, Yanshan Petrochemical increased the ex-factory settlement price of acetone by 100 yuan to 4,200 yuan per ton, effective from January 6th. Chempricehub analysis of acetone, long-short score: 1. The article reports that Yanshan Petrochemical raised the ex-factory settlement price of acetone by 100 yuan per ton to 4,200 yuan per ton, effective from January 6th. This directly reflects rising costs on the supply side or increased demand, which is favorable for the spot market price of acetone. It is expected that the spot price will rise in the short term. Scoring rationale: The price increase is moderate, representing a generally positive factor that boosts market bullish sentiment.