[Qingyi Optoelectronics: 55nm PSM products have entered the customer online certification stage] On September 28, Qingyi Optoelectronics (688138.SH) announced that the company's 55nm PSM (phase shift mask) product has signed a confidentiality agreement with the customer and confirmed the product specification. The customer purchase order has been received, and the product has been delivered and has entered the customer online certification stage. This product is mainly used for key photolithography layers that require high pattern accuracy in semiconductor chip manufacturing, covering high-precision graphics scenarios such as logic, storage, some special processes, and power devices. If customer certification is successfully completed and large-scale batch supply is achieved, the company's high-end semiconductor mask product matrix will be improved and profitability will be improved. However, there are uncertainties in the certification cycle and results, and the batch supply time cannot yet be determined.