赛轮轮胎：瑞元鼎实增持2.30%完成

Core Viewpoint - The actual controller's concerted action partner, Ruiyuan Ding Shi, has completed a share buyback plan, acquiring a total of 75.5784 million shares, which represents 2.30% of the company's total share capital, with an investment amount of approximately 1 billion yuan [1] Summary by Sections - Share Buyback Details - The buyback period is from April 11, 2025, to September 12, 2025 [1] - Ruiyuan Ding Shi's shareholding increased to 556 million shares, accounting for 16.92% of the total shares [1] - Control Structure - Yuan Zhongxue and his concerted action partners collectively control 865 million shares, representing 26.30% of the total shares [1]