When is Dalian a new first-tier city?

June 202 1. In June of 20021year, the GDP of two cities in Liaoning exceeded 700 billion, reaching the standard of first-tier cities, including Dalian, so it became a new first-tier city in June of 20021year. New first-tier cities rank 337 cities above the prefecture level in China according to brand data, user behavior data of Internet companies and big data of data institutions.