Here is the professional translation: **Auction and Sales Status of Selected Domestic Butadiene Producers on September 24: Yantai Wanhua at 19**

On September 24, the auction and sales status of butadiene for selected domestic enterprises were as follows: Yantai Wanhua sold 196 tons externally with an opening bid price of RMB 13,400/ton; Satellite Chemical sold 476 tons externally with an opening bid price of RMB 13,400/ton.

Regional trends in the domestic butadiene market have diverged. In Shandong, pre-holiday stockpiling by downstream users has stimulated trading activity and driven prices higher. Conversely, in East China, downstream buyers have resisted high prices, adopting a wait-and-see approach amid limited actual transactions, leading to a slight decline in prices.

The supply-demand dynamics across regions show significant divergence, with bullish and bearish factors maintaining a balanced equilibrium. In the short term, the market is expected to continue fluctuating within a narrow range.