On October 30th, Sinopec Zhenhai Refining and Chemical Co., Ltd. provided a quote for butadiene at 7900 RMB/ton. The specification of the butadiene is: grade: premium quality; content,%: ≥ 99.5. The validity period of this quote is three days. The quoting entity is Sinopec Zhenhai Refining and Chemical Co., Ltd.