Huaan Securities·2025-07-06 12:15Group 1 - Industry Investment Rating: Overweight [1] - Core Viewpoint: The chemical sector's overall performance ranked 16th with a fluctuation of 0.80%, underperforming the Shanghai Composite Index by 0.60 percentage points [4][22] - Key Recommendations: Focus on synthetic biology, pesticides, chromatography media, sugar substitutes, vitamins, light hydrocarbon chemicals, COC polymers, and MDI [4] Group 2 - Synthetic Biology: A pivotal moment is approaching, with low-energy products expected to gain a longer growth window due to the energy structure adjustment [4] - Refrigerants: The third-generation refrigerants are entering a high prosperity cycle, with supply constraints and stable demand growth anticipated [5] - Electronic Specialty Gases: The domestic market faces a contradiction between rapid upgrades in wafer manufacturing and insufficient high-end electronic specialty gas capacity, presenting significant domestic substitution opportunities [6][8] - Light Hydrocarbon Chemicals: A global trend towards lighter raw materials in the olefin industry is noted, with a shift from heavy naphtha to lighter ethane and propane [8] - COC Polymers: The domestic industrialization process is accelerating, driven by breakthroughs in local enterprises and a shift in downstream industries to domestic production [9] - Potash Fertilizer: Prices are expected to bottom out and rebound due to supply reductions and increased demand from farmers [10] - MDI Market: The oligopoly structure is expected to improve, with demand steadily increasing and a favorable supply outlook anticipated [12]