Langdi Group: The main business includes household air conditioning fan blades, mechanical fans, composite materials, etc., with no significant changes.

Randy Group Announcement on Abnormal Fluctuations in Stock Trading: The company's main business is household air conditioning fan blades, mechanical fans, composite materials, etc. After self-inspection, the company's product structure and main business have not undergone significant changes. Currently, production and operation activities are normal, and there have been no significant changes in the company's internal and external business environment or industry policies.