大业股份三连板，发布交易异常波动公告

Core Viewpoint - The company, Daye Co., Ltd. (603278.SH), has acknowledged recent market speculation regarding its involvement in the commercial aerospace sector and humanoid robotics, while clarifying that its primary business remains focused on the production and sales of tire cord steel wire, steel wire for rubber, and related products [1] Group 1: Investment in Aerospace - On June 30, 2021, the company made a cash investment of RMB 59.998 million in Hubei Sanjiang Aerospace Jiangbei Mechanical Engineering Co., Ltd., acquiring a 4.216% stake in the company [1] - Jiangbei Company specializes in the research and production of aerospace propulsion systems and antenna covers, but currently has a small net profit scale [1] - The investment is classified as a financial investment, with minimal impact on the company's overall performance due to the small equity stake and limited dividend income [1] Group 2: Robotics Business - The company has noted recent market discussions linking it to humanoid robotics, although its current robot tendon products have not yet entered mass production and have not generated substantial revenue [1] - There are significant uncertainties regarding the future of the company's robotics business in terms of technological development, product competitiveness, and profitability [1]