华大九天：主要从事用于集成电路设计、制造和封装的EDA工具软件开发等业务

Core Viewpoint - The company, BGI Nine Heaven (华大九天), primarily engages in the development, sales, and related services of EDA (Electronic Design Automation) tools for integrated circuit design, manufacturing, and packaging [1] Group 1 - The company is involved in the EDA tools software sector [1] - The focus of the company's business includes integrated circuit design, manufacturing, and packaging [1] - The company provides related services alongside its software offerings [1]