On November 6, China Petrochemical Corporation Zhenhai Refining and Chemical Co., Ltd.'s bid for butadiene is priced at RMB 6900 per ton. The specifications of the butadiene are as follows: grade: premium quality; content, %: ≥ 99.5. The validity period of this bid is three days. The provider of the bid is China Petrochemical Corporation Zhenhai Refining and Chemical Co., Ltd.