ST合纵：控股公司湖南雅城主要是锂电池正极材料前驱体的研发、生产和销售

Group 1 - The core point of the article highlights that Yacheng New Energy has been listed among the "Top 50 Industrial Enterprises by Scale" in Ningxiang Economic Development Zone for the year 2024 [2] - The company primarily focuses on the research, production, and sales of lithium battery cathode material precursors [2]