Propylene oxide is primarily used in the production of polyether polyols, propylene glycol, and various non-ionic surfactants. Among these, polyether polyols serve as essential raw materials for manufacturing polyurethane foams, insulation materials, elastomers, adhesives, and coatings. Various non-ionic surfactants are widely applied in industries such as petroleum, chemicals, pesticides, textiles, and daily chemicals. Additionally, propylene oxide is an important fundamental chemical raw material.