证券日报网讯12月29日，再升科技（603601）在互动平台回答投资者提问时表示，公司开发的核级高效 空气过滤材料已在核电站中有广泛应用。此外，2024年内公司针对华龙一号、EPR核岛辅助系统水过滤 无硅无铝的要求，自主研发了高性能无硅无铝高分子复合滤材(核岛辅助系统水过滤器无硅无铝滤材)， 各项性能指标满足研制技术规格书及相关标准的要求，产品性能达到国外同类产品先进水平，具有良好 的经济效益与社会效益，可替代传统玻纤滤芯和国外产品在我国核电站推广应用。 ...

Core Insights - Zhejiang Jinhai High-tech Co., Ltd. reported a significant increase in net profit by 32.20% for the year 2024, while cash flow from operating activities decreased by 33.44, indicating a divergence in financial performance that warrants investor attention [1][13]. Financial Performance Analysis - Revenue: The company achieved a revenue of 788,542,275.71 yuan in 2024, an increase of 8.74% from 725,193,069.04 yuan in 2023, primarily driven by an increase in orders [2]. - Net Profit: The net profit attributable to shareholders was 65,038,748.85 yuan, up from 49,198,371.54 yuan in 2023, reflecting a 32.20% growth due to stable expenses amid rising orders [3]. - Deducted Non-Recurring Profit: The net profit after deducting non-recurring items was 56,794,569.01 yuan, a 34.60% increase from 42,196,199.50 yuan in 2023, indicating enhanced core business profitability [4]. - Earnings Per Share: Basic earnings per share rose to 0.28 yuan, a 33.33% increase from 0.21 yuan in 2023, while the diluted earnings per share also increased by 33.33% to 0.24 yuan [5]. Expense Analysis - Sales Expenses: Sales expenses slightly increased by 1.05% to 27,861,158.23 yuan, attributed to stable business structure and personnel [6]. - Management Expenses: Management expenses rose by 0.96% to 68,653,944.69 yuan, reflecting stable internal management [7]. - Financial Expenses: Financial expenses significantly decreased by 66.00% to 398,663.54 yuan, mainly due to currency fluctuations [8]. - R&D Expenses: R&D expenses decreased by 5.71% to 19,657,821.80 yuan, indicating a need for continued investment in R&D to maintain competitive advantage [10]. Cash Flow Analysis - Operating Cash Flow: The net cash flow from operating activities was 76,692,815.49 yuan, down 33.44% from 115,228,108.23 yuan in 2023, primarily due to changes in payment cycles [13]. - Investment Cash Flow: The net cash flow from investing activities was -296,782,544.86 yuan, an increase in outflows due to expanded investment activities [14]. - Financing Cash Flow: The net cash flow from financing activities improved to -29,706,473.80 yuan from -47,640,787.85 yuan in 2023, indicating better fund management [15]. R&D and Innovation - R&D Investment: The total R&D expenditure was 19,657,821.80 yuan, accounting for 2.49% of revenue, with a stable proportion despite a slight decrease in absolute terms [11]. - R&D Personnel: The R&D team consists of 66 members, with a stable structure but a need for more high-end talent to enhance innovation capabilities [12].