Core Insights - The company has begun small-scale deliveries of its positive PSPI photoresist to certain clients and is simultaneously advancing verification work with several leading wafer fabs [2] - The company is also in the client validation phase for its ultra-high sensitivity PSPI and low-temperature curing negative PSPI products to meet various technical requirements [2]

Core Viewpoint - The company, Aisen Co., Ltd. (688720.SH), is benefiting from sustained industry demand and a steady increase in market share, leading to a robust order backlog and high capacity utilization [1] Group 1: Company Performance - The company has sufficient orders on hand and maintains a mid-to-high capacity utilization rate [1] - The positive PSPI photoresist has been delivered in small batches to some customers, while validation work is ongoing with several leading wafer fabs [1] Group 2: Product Development - The company is advancing the validation of ultra-sensitive PSPI and low-temperature curing negative PSPI products to meet various technical requirements [1]