What you want to ask is in which year did catering group buying begin in Lanzhou?

year 2013.

According to the query of Northwest China Network, socialization, marketization and enterpriseization of the catering group buying industry have become the main theme in the 21st century. The group meal market has begun to take shape. The central government’s “Eight Regulations” and “Ten Prohibitions” were proposed in 2013. Lanzhou

The high-end catering industry has encountered a cold winter, and catering group purchases have begun to appear. Therefore, the emergence of catering group purchases in Lanzhou began in 2013.