This is the 4485th most frequent Japanese word.
子会社
Subsidiary company.
In this sentence, '子会社' refers to companies that are owned or partially controlled by a larger parent company.
その会社は多くの子会社を持っています。
That company has many subsidiaries.
Here, '子会社' is used in the context of discussing plans or events related to a subsidiary's establishment.
新しい子会社が来月設立されます。
A new subsidiary will be established next month.
In this sentence, '子会社' denotes an entity whose financial or operational outcomes have implications for the parent company.