所属 (suǒ shǔ): สมาชิกของคน (เช่นองค์กรหนึ่งเป็นส่วนหนึ่งกับ)

May I ask which department this document belongs to?

The company he is affiliated with went public overseas this year.

Experts affiliated with the research institute proposed a new theory.

These data should be stored and classified according to their affiliated unit.