On April 27, Yangzhou Shiyou's 32,000-ton/year phenol-ketone production line is operating normally, with prices raised by 200 CNY/ton to 7,700 CNY/ton. Contract deliveries are proceeding as planned, and inventory levels remain low. Chempricehub evaluates acetone with a bullish-bearish score of 1.5. Yangzhou Shiyou's price increase of 200 CNY/ton for phenol-ketone to 7,700 CNY/ton, coupled with low inventory, indicates a tight supply in the acetone market, with potential demand strengthening, which is favorable for spot prices. Stable production yet proactive price hikes reflect cost or demand support in the industry, suggesting a short-term upward trend for spot prices. MIBK also scores 1.5 on the bullish-bearish scale. Yangzhou Shiyou's 200 CNY/ton increase in phenol-ketone prices and low inventory imply a tight supply for MIBK, as a ketone product, with steady demand, benefiting spot prices. Contract deliveries are on schedule, but the price increase demonstrates market confidence, potentially driving MIBK spot prices higher.