• 2022 Annual Social Responsibility Report

  October 31, 2023

• Guojin Securities Co., Ltd. Tracking Report on the Continuous Supervision of Zhejiang Chunhui Intelligent Control Co., Ltd. for the First Half of 2023

  August 31, 2023

• Independent Opinion on Relevant Matters of the 19th Meeting of the Eighth Board of Directors

  August 31, 2023

• 2023-048 Announcement of Resolutions of the 15th Meeting of the Eighth Board of Supervisors

  August 31, 2023

• 2023-047 Announcement of Resolutions of the 19th Meeting of the Eighth Board of Directors

  August 31, 2023

• 2023-046 2023 Semi-Annual Report

  August 31, 2023

• 2023-045 Summary of the 2023 Semi-Annual Report

  August 31, 2023

• 2023-044 2023 Semi-Annual Disclosure Reminder Announcement

  August 31, 2023

• 2023-043 Announcement on the Progress of Acquiring 100% Equity of Shaoxing Tenglong Thermal Insulation Materials Co., Ltd. and Completion of Industrial and Commercial Registration Change

  July 31, 2023

• 2023-042 Announcement on the Acceptance by Beijing Stock Exchange of the Application for Public Offering and Listing of Shares by the Investee Company

  July 31, 2023