1. First of all, according to the Regulation on Classified Supervision of Securities Companies, securities companies are divided into five categories: A(AAA, AA, A), B(BBB, BB, B), C(CCC, CC, C), D and E, with the level of 1 1.
2. Secondly, search the classification results of securities companies in 20XX years in official website of CSRC.
3. Finally, you can check the rating (or classification result) of Essence Securities in recent ten years.