On September 3, Gelonghui reported that Dinglong Technology (603004.SH) announced a stock trading risk advisory, noting that the concept of 'foldable screen' has received significant market attention recently. After company verification, the following explanation was provided: the PBO monomer produced by the company is used to supply downstream customers to synthesize PBO fiber materials. The application fields of PBO fiber are quite wide, mainly including aviation and aerospace, heat-resistant protection, material reinforcement, communication electronics, and special ropes (according to public information from downstream customers), the specific situation depends on the collaborative development, verification, and final application of downstream customers and end enterprises. The company's PBO monomer business is still in the market cultivation period, and the proportion of PBO monomer income in the first half of 2024 has not exceeded 5%. Its production, customer composition, sales revenue, and proportion have not shown significant fluctuations, and are relatively stable.