"Article 422" is the red line for banks and trust companies to issue loans to real estate development enterprises. Only real estate companies, banks and trust companies that meet the requirements of Article 422 can provide real estate development loans.

"4" means that the real estate company has four certificates, and "four certificates" refers to the state-owned land use certificate, construction land planning permit, construction project planning permit and construction project commencement permit.

The purpose of "Article 422" is to prevent real estate developers from returning empty-handed: to prevent land speculation "enclosure", to prevent projects from going bad, and to require real estate developers to buy land from their own pockets.