On July 11, Sinopec Guangzhou Branch of China Petroleum & Chemical Corporation provided a quote for butadiene at the rate of RMB 13,450 per ton. The specification of the butadiene includes: grade: premium quality; content,%: ≥ 99.5%. The validity period for this quote is three days. The provider of the quoted information is Sinopec Guangzhou Branch of China Petroleum & Chemical Corporation.