A total of 15 cities have joined the club of China's new first-tier cities due to their commercial charm, according to a report by the China Business Network (CBN) Co Ltd.

The ranking, released by CBNweekly magazine on May 7, assesses commercial attraction of 338 cities based on five indicators: concentration of commercial resources, city's pivotability, citizen vitality, variety of lifestyle, and flexibility in the future.

The list includes four first-tier cities (Beijing, Shanghai, Guangzhou and Shenzhen), 15 new first-tier cities, 30 second-tier cities, 70 third-tier cities, 90 fourth-tier cities and 129 fifth-tier cities.

Let's take a look at China's 15 new first-tier cities.

Chengdu

A man and a woman pose for a photo with the 15-meter-tall panda sculpture on the Chengdu International Finance Square (IFS) building in Chengdu, Sichuan province on April 19, 2017. [Photo/VCG]