News on December 30th: On December 30th, the bidding and sales situation of some domestic butadiene enterprises: Shenghong Refining raised the price by 200 yuan/ton to 8,500 yuan/ton; Yantai Wanhua sold 84 tons externally, with a starting bid of 8,200 yuan/ton and a transaction price of 8,460–8,480 yuan/ton; Satellite Chemical raised the price by 300 yuan/ton, executing 8,400 yuan/ton. Supported by favorable fundamentals, the short-term trend of butadiene is relatively strong, and close attention should be paid to downstream procurement conditions. Chempricehub's analysis of butadiene, with a bullish-bearish score: +1.5 The article indicates that Shenghong Refining raised the butadiene selling price by 200 yuan/ton to 8,500 yuan/ton, Yantai Wanhua's bidding transaction price reached 8,460–8,480 yuan/ton (higher than the starting bid of 8,200 yuan/ton), and Satellite Chemical raised the price by 300 yuan/ton to 8,400 yuan/ton, all suggesting tight spot market supply or strong demand. Supported by favorable fundamentals, companies actively raised prices, and transaction premiums were significant, reflecting strong market optimism. It is expected that spot prices will continue to strengthen in the short term. The score is +1.5 (between generally favorable and significantly favorable), as multiple companies simultaneously raised prices with substantial transaction premiums, but attention should be paid to potential fluctuations due to the sustainability of downstream procurement.