Key investment points The CSRC issued a document to strengthen the accounting supervision of goodwill impairment On November 16, 2018, the CSRC released the Accounting Supervision Risk Prompt No. 8 - Goodwill Impairment on its official website, aiming to further standardize the accounting treatment and information disclosure of goodwill impairment of listed companies. This is the first time that the CSRC updated and issued the Accounting Supervision Risk Prompt after 17 months. For the electric power and public environmental protection industry, we expect that the disclosure of goodwill impairment items and related data in the 2018 annual report of listed companies will become more stringent; In case of revaluation, it will have a certain impact on the balance sheet and income statement.