PICC Life Insurance Company is a small company, which has not been established for several years. The scale of prefecture-level institutions is not up to the second level, but only up to the third level, so they can only be called central companies.
Institutional setup of insurance companies:
Head Office-branches-central branches-branches-business areas (departments)
Further reading: How to buy insurance, which is good, and teach you how to avoid these "pits" of insurance.