On January 7, Yangzhou Shiyou's 320,000 tons/year phenol-acetone unit operated normally, with the price increased by 100 to 4,300 yuan/ton. Contract shipments were mainly carried out as planned, and inventory remained low. **PriceSeek Analysis** **Acetone, Bull-Bear Score: 1.5** Yangzhou Shiyou raised the acetone price by 100 yuan/ton to 4,300 yuan/ton, with low inventory and normal shipments as planned, indicating tightening supply and strengthening market confidence. This is favorable for acetone spot prices and may prompt other producers to follow suit, reinforcing the short-term upward trend. **MIBK, Bull-Bear Score: 0.5** Acetone is the primary raw material for MIBK, and its price increase will raise MIBK production costs, potentially providing slight support to MIBK spot prices. However, downstream demand remains uncertain, limiting the overall impact. Further market developments should be monitored.