Ji 'an, called Luling and Jizhou in ancient times, is a prefecture-level city under the jurisdiction of Jiangxi Province. At the beginning of the Yuan Dynasty, it was renamed Ji 'an from the meaning of "Ji Tai's daughter". Ji 'an has two districts, 1 city and1county. The total area of the city is 25,283 square kilometers.
Shenzhen, referred to as Pengcheng for short, is a prefecture-level city under the jurisdiction of Guangdong Province. It is a sub-provincial city, a city with separate plans, and a megacity in Guangdong Province. It is also a China Special Economic Zone, a national economic center city, an international city, a scientific and technological innovation center, a regional financial center, and a trade and logistics center approved by the State Council.