Introduction to corporate credit rating The rating agency for corporate credit rating is the Beijing Zhongguancun Science and Technology Park Management Committee. Under normal circumstances, companies with scores of 90 points and above will be rated as AAA companies. This type of company The enterprise's asset-liability ratio, interest repayment rate and other indicators must reach full marks, and the cash flow indicator must also be higher than 5 points. If one of the indicators fails, it cannot be rated as AAA, and the highest can only be rated as AAA. AA grade enterprise. The China Development Bank only adopts seven levels of credit rating for enterprises: AAA, AA, A, BBB, BB, B, and C, and uses green signal, yellow signal, and red signal to indicate the risk level of the enterprise.