March 4th News: Dongming Petrochemical's 50,000-ton/year butadiene unit is operating normally, with 392 tons sold externally at a floor price of 10,800 yuan/ton. Yantai Wanhua's 200,000-ton/year butadiene unit is operating normally, with 280 tons sold externally at a floor price of 10,800 yuan/ton. Satellite Chemical's 90,000-ton/year butadiene unit is operating normally, with a price increase of 100 yuan/ton, now at 11,100 yuan/ton. Enterprises.