万润科技：控股子公司湖北长江万润半导体技术有限公司主要聚焦半导体存储器的设计研发及销售

Group 1 - The core focus of the company is on the design, research and development, and sales of semiconductor memory, particularly solid-state drives (SSDs) [1] - The SSDs cover various application scenarios including consumer, industrial, and enterprise levels [1] - The company conducts procurement activities based on market and customer actual conditions [1]