5年一轮的大周期来了？聊聊化工的周期拐点

Core Viewpoint - The chemical industry is gaining attention as a significant investment opportunity alongside AI, chips, and new consumption sectors, particularly due to the increasing crowding in these other sectors since 2025 [1][21]. Group 1: Chemical Industry Cycle - The chemical industry typically follows a "5-year cycle," characterized by phases of profit growth, capacity expansion, profit bottoming, and capacity clearance or demand improvement [2][22]. - Current conditions indicate a "dawn" phase for the chemical industry, coinciding with a reduction in capital expenditure growth, anti-involution trends, overseas interest rate cuts, and domestic demand expansion [2][22]. - Key focus areas for 2026 include anti-involution, capacity reduction, and identifying demand certainty, with specific industries like PTA, polyester filament, organic silicon, and caprolactam leading the way [4][24]. Group 2: Growth Opportunities - Four growth areas within the chemical sector show clear potential: 1. Lubricant additives, benefiting from overseas client breakthroughs and global substitution trends [7][27]. 2. Biomanufacturing, driven by AI-enabled synthetic biology and promising new materials like PDO [7][27]. 3. Green fuels, spurred by urgent international emission reduction needs, creating markets for SAF and green alcohol [7][27]. 4. Solid-state batteries, nearing industrialization with advancements in sulfide and other battery materials [7][27]. Group 3: AI Materials - The explosive growth of the AI industry highlights four chemical material areas worth monitoring: 1. Chromium chemicals, with strong demand from two major sectors and ongoing supply constraints [10][30]. 2. Liquid cooling, driven by high computing density and the exit of 3M from the PFAS market, indicating a growing demand for cooling liquids [10][30]. 3. PCB materials, with a clear trend towards high-frequency and high-speed applications [10][30]. 4. Energy storage, with data center requirements boosting overseas storage demand and exceeding expectations for mobile storage, marking a turning point for the lithium battery supply chain [10][30]. Group 4: ETF Investment Opportunities - There are currently six ETFs tracking the chemical sector, reflecting the overall performance of major chemical companies in the Shanghai and Shenzhen markets [11][31]. - The Hua Bao Fund's chemical ETF (516020) has seen a remarkable growth rate of 832.84% in the past year [13][33]. - Analyst forecasts for 2025E and 2026E indicate a significant improvement in net profits for the ETF's weighted stocks compared to 2024, confirming a turning point in industry prosperity [18][38].