Sinopec East China Sales Company has set the butadiene price for Shanghai Petrochemical, Zhenhai Refining & Chemical, and Yangzi Petrochemical at 10,500 yuan/ton, remaining unchanged from the previous trading day. Sinopec North China Sales Company has set the butadiene price for Zhongsha (Tianjin) Petrochemical at 10,500 yuan/ton, also unchanged from the previous trading day. Sinopec Central China Sales Company has set the butadiene price for Zhonghan (Wuhan) Petrochemical at 10,500 yuan/ton, stable compared to the previous trading day. Sinopec South China Sales Company has quoted the butadiene price for Guangzhou Petrochemical, Maoming Petrochemical, and Zhongke Refining & Chemical at 10,500 yuan/ton, with no change from the previous trading day.