瑞丰新材：关于公司通过高新技术企业重新认定的公告

Group 1 - The company, Ruifeng New Materials, has received the "High-tech Enterprise Certificate" issued by the Henan Provincial Department of Science and Technology, Henan Provincial Department of Finance, and the State Taxation Administration of Henan Province [2] - The certificate number is GR202541002056, and it was issued on November 4, 2025, with a validity period of three years [2] - This recognition is a renewal of the company's previous "High-tech Enterprise Certificate" that had expired [2]