Yongxin Optics issued a stock trading risk warning. The company's main businesses are optical microscopes, barcode machine vision, lidar, and medical optics. Its main products include optical microscopes and core optical components, which are primarily used in life sciences, smart healthcare, autonomous driving, and supermarket logistics. Lithography equipment is not a major application area for the company's products, and related revenue accounts for less than 1% of the company's operating income, and will not have a significant impact on the company's performance.