On December 9, Shandong Qilu Petrochemical's bid for acrylonitrile is priced at 7800 yuan/ton. The specification of acrylonitrile: national standard premium quality; acrylonitrile quality fraction ≥ 99.5%. The validity period of the bid is three days. The bidder is Shandong Beidaihuan Sky Petrochemical Co., Ltd.