瑞丰高材(300243.SZ)：通过制造业单项冠军企业复核

Core Viewpoint - The company, Shandong Ruifeng Polymer Materials Co., Ltd., has been re-certified as a "Manufacturing Single Champion Enterprise" by the Ministry of Industry and Information Technology, reflecting its strong market position and technological capabilities [1] Group 1 - The company was first recognized as a "Manufacturing Single Champion Enterprise" in 2018 based on its market advantage in PVC processing impact modifiers [1] - The recent re-certification demonstrates the company's comprehensive strength in industry status, technical level, and market share [1] - This recognition is expected to enhance the company's brand influence and overall competitiveness in the market [1]