同心致远、协同奋进。十余载深耕不辍，京津冀协同发展从蓝图落地为实景，从重点突破迈 向全域融合，世界级城市群主干构架已然成型，高质量发展增长极势能强劲。 当前，京津冀协同发展迈入深度融合、提质增效的新阶段，"十五五" 开局起步，每一步前 行都更需战略定力与系统思维，更彰显使命担当与时代作为。 风好正是扬帆时，策马扬鞭再登峰。值此 "十五五" 开局之年，长安街知事（微信ID： Capitalnews）联手三地党报再次推出系列报道 "京津冀一把手访谈录"，邀请三地市区党委 政府 "一把手"，共话协同成效、共商发展大计、共绘现代化首都都市圈美好新篇。 河北保定市市长 闫继红 京津冀协同发展进入新阶段，保定作为区域性中心城市，如何把握机遇、乘势而上？近日，记者就京津 冀协同发展亮点成效、"十五五"重点规划等话题，专访了保定市市长闫继红。 在服务首都、对接京津、联动雄安中加快发展自己 记者：今年是京津冀协同发展战略实施12周年，目前已进入全方位、高质量深入推进的阶段。保定作为 京津冀世界级城市群中的区域性中心城市，怎样理解和把握自己担负的职责和使命？ 闫继红：京津冀协同发展是习近平总书记亲自谋划、亲自部署、亲自推动的重大 ...

Core Viewpoint - The article emphasizes the rapid growth and competitive landscape of high-performance membrane materials, particularly in lithium battery separators, hydrogen energy, photovoltaics, and semiconductors, with Chinese companies making significant advancements against long-standing dominance by Japanese and American firms [2]. Group 1: Overview of High-Performance Membrane Materials - High-performance membrane materials are critical for new separation technologies, characterized by energy efficiency and environmental friendliness, playing a vital role in addressing water, energy, and environmental issues [8]. - Membrane materials can be categorized into thick membranes (over 1 micron) and thin membranes (under 1 micron), with applications in water treatment, special separation, gas separation, biomedical, and battery membranes [8][11]. Group 2: Current Development Status of the Membrane Industry - The global membrane materials industry is growing at an annual rate of approximately 15%, with water treatment membranes reaching a mature stage, while special separation membranes are experiencing rapid development [11]. - By 2019, the membrane industry in China had nearly reached a scale of 200 billion yuan, with significant advancements in water treatment, special separation, and gas separation membranes [11]. Group 3: Market Situation of High-Performance Separation Membranes - In 2022, China's membrane industry total output value is expected to exceed 860 billion yuan, with a compound annual growth rate of about 10% from 2022 to 2027 [20]. - The market structure of membrane products in China shows that reverse osmosis and nanofiltration membranes account for 50%, while ultrafiltration and microfiltration membranes each account for 10% [20]. Group 4: Competitive Landscape of the Membrane Industry - The membrane industry value chain includes research and development of membrane materials, production of membrane components, manufacturing of membrane equipment, and system integration, with the highest value contribution from upstream material development [21]. - The competitive landscape features a mix of domestic and international players, with significant market shares held by companies like Shanghai Thinker and Xingyuan Material in the lithium battery separator market [47]. Group 5: Optical Membranes - Optical membranes are widely used in various applications, including precision optical devices, displays, and anti-counterfeiting technologies, with significant growth driven by demand in the LCD and OLED markets [24][37]. - The optical membrane market in China is projected to grow, with a market size of approximately 327.23 billion yuan in 2022, driven by technological upgrades and strong demand from local manufacturers [37]. Group 6: Lithium Battery Separators - The lithium battery separator market is rapidly expanding, with China's output volume reaching 133.2 billion square meters in 2022, accounting for over 80% of the global market share [47]. - Major players in the lithium battery separator market include Shanghai Thinker and Xingyuan Material, with significant growth in both wet and dry separator production [47]. Group 7: Aluminum-Plastic Film - The aluminum-plastic film market is expected to grow at a compound annual growth rate of 16.09%, reaching a market size of 57 billion yuan in 2022 [53]. - The supply of aluminum-plastic films is currently unable to meet domestic demand, leading to a push for domestic production to replace imports [61].

Core Viewpoint - DuPont China is under investigation for alleged violations of China's antitrust laws, which may accelerate the domestic substitution of high-performance separation membrane materials in the industry [1][3]. Group 1: Company Overview - DuPont China Group Limited operates in several segments, including electronic technology, next-generation automotive, water treatment, protective solutions, and industrial technology [3]. - The merger of Dow Water & Process Solutions and DuPont's Safety & Construction Division in April 2019 led to the establishment of DuPont Water Solutions, solidifying its market position in water treatment [3]. Group 2: Industry Context - The increasing complexity of international political and economic situations highlights the importance of high-performance separation membrane materials as strategic materials for China, emphasizing the need for a self-controlled industrial chain [3]. - The process of domestic substitution in the high-performance separation membrane sector is accelerating, with companies in this niche emerging as leaders in the market [3].