On May 27, the auction and sales situation of some domestic butadiene enterprises: Dongming Petrochemical sold 280 tons externally with a base price of 11,750 yuan/ton; Satellite Chemical sold 336 tons externally with a starting price of 11,800 yuan/ton. The long-term crude oil trend is generally bearish, weighing on spot market sentiment, and purchasing sentiment is becoming more rational. It is expected that short-term prices will maintain a range-bound narrow fluctuation. In the future, attention should be paid to the downstream market trends and purchasing situations.