同益股份(300538.SZ)：代理销售光刻胶基材树脂材料，产品主要应用于显示屏幕领域，目前销售占比较小

Core Viewpoint - Tongyi Co., Ltd. (300538.SZ) is engaged in the agency sales of photoresist resin materials, primarily applied in the display screen sector, with a currently small sales proportion [1] Company Summary - The company focuses on photoresist resin materials, which are essential in the manufacturing of display screens [1] - The sales contribution from this product line remains relatively low at present [1]