The Jing-Jin-Ji cluster[a] is an expanded urban agglomeration consisting of Beijing (Jing), Tianjin (Jin), and Hebei (Ji).

The area is becoming a significant growth cluster for automobile, electronics, petrochemical sectors, automotive industry, software and aircraft, thus attracting foreign investments in manufacturing and health services.

[7][8] The Chinese central government has made it a priority to integrate all the cities in the Bohai Bay rim and foster economic development.

[9] In 2016, the Central Government approved a US$36-billion plan to link the various cities making up this metropolis by rail in order to reduce commute times and to better integrate them.

[11]: 143  Xiong'an is where Beijing's non-capital functions, such as universities, research institutes, and high-tech innovation centers are planned to be transferred over time.

5The claimed province of Taiwan no longer have any internal division announced by Ministry of Civil Affairs of PRC, due to lack of actual jurisdiction.