The Shandong National Tax Bureau and the local tax bureau announced their list of companies that got a AAA tax-paying credit, on May 22, with the Zhenghe Group, Huaxing Petrochemical, and Changyi Petrochemical making the list. It was based on China’s tax collections, as well as management methods and a Shandong province evaluation system. Authorities took tax registration, accounts, invoice management, tax declarations, and any tax evasion into account in reaching their decision after getting feedback from the public. There were 194 companies in all that qualified for the credit.