On April 19, Sinopec Qingdao Refining and Chemical Co., Ltd.'s quotation for propylene is RMB 5,150 per ton. The specifications of propylene are as follows: Propylene, % (V/V) Not Less Than: 95. The validity period of the quotation is 3 days. The quoting entity is Sinopec Qingdao Refining and Chemical Co., Ltd.