强于大市（维持评级）：基础化工行业周报：11月TDI出口量创单月历史最高，中国合成树脂协会倡议规范聚甲醛行业秩序-20251228

Investment Rating - The report maintains an "Outperform" rating for the industry [5] Core Insights - The chemical sector has shown strong performance, with the CITIC Basic Chemical Index rising by 5.41% this week, outperforming the overall market indices [2][15] - The TDI export volume reached a historical high in November, with exports totaling 56,500 tons, significantly exceeding previous years [3] - The China Synthetic Resin Association has called for the regulation of the polyoxymethylene industry to address structural supply-demand imbalances and promote high-quality development [3] Summary by Sections Market Performance - The Shanghai Composite Index increased by 1.88%, while the ChiNext Index rose by 3.9% [2][15] - The top-performing sub-industries included membrane materials (12.18%), synthetic resins (8.23%), and phosphate fertilizers (6.5%) [2][18] Key Industry Dynamics - TDI exports for the first 11 months of 2025 reached 506,300 tons, a 56.2% year-on-year increase [3] - The China Synthetic Resin Association's initiative aims to optimize investment decisions and enhance innovation in the polyoxymethylene sector, anticipating a total capacity of 1.51 million tons per year by 2025 [3] Investment Themes - The domestic tire industry shows strong competitive advantages, with recommended stocks including Sailun Tire and Linglong Tire [4] - The consumer electronics sector is expected to gradually recover, with upstream material companies likely to benefit [4] - The report highlights the resilience of certain cyclical industries, such as phosphate and fluorine chemicals, which are expected to see tightening supply-demand dynamics [8] - Leading chemical companies are anticipated to benefit from economic recovery and demand resurgence, with recommendations for companies like Wanhua Chemical and Hualu Hengsheng [9]