七彩化学：子公司生产的2-重氮-1-萘酚-5-磺酸钠是用于生产光刻胶组成成分之一的光敏剂原料之一

Group 1 - The company has achieved mass production of 2-Diazo-1-naphthol-5-sulfonic acid sodium, a key raw material for photoresist, with a capacity utilization rate of over 50% [2] - This business segment represents a relatively low proportion of the company's main operations [2]