[morning announcement] ① Zhongnan Construction: the total amount of asset impairment reserve of the company in 2022 is 3.535 billion yuan. ② Yongqing Environmental Protection: the controlling shareholder Yongqing Group and its concerted actor Ouyang Yuyuan plan to reduce the company's shares by a total of no more than 38.7373 million shares (accounting for 6% of the company's total share capital); company director Liu Daihuan plans to reduce the company's shares by 10, 000 shares (0.0015% of the company's total share capital). ③ Xiexin Integration: applications for issuing shares to specific objects are accepted by the Shenzhen Stock Exchange. ④ * ST: the annual report for 2022 and the first quarterly report for 2023 will be released ahead of schedule on April 26th.