中鼎股份等成立精密技术公司，含集成电路制造业务

Group 1 - The core point of the article is the establishment of Hefei Dingtuo Precision Technology Co., Ltd., which includes integrated circuit manufacturing as part of its business scope [1] - The company has a registered capital of 10 million yuan and its business activities include manufacturing generators and generator sets, sales of micro-special motors and components, manufacturing electronic components, and integrated circuit manufacturing and sales [1] - Hefei Dingtuo Precision Technology Co., Ltd. is jointly owned by Zhongding Co., Ltd. (000887) through its wholly-owned subsidiary Anhui Ruisi Bo Robot Technology Co., Ltd. and Shaanxi Topda Precision Equipment Co., Ltd. [1]