化工行业周报：叶酸、硝酸价格涨幅居前，建议关注六氟磷酸锂和磷化工板块-20251110

Investment Rating - The report suggests a focus on lithium hexafluorophosphate and phosphorus chemical sectors due to their positive outlook [1][5]. Core Insights - The chemical sector saw a 3.54% increase in the first week of November, underperforming the Shanghai A-share index by 2.45 percentage points [2][11]. - Key stocks that performed well include Qing Shui Yuan (+47.78%), Fo Si Technology (+33.38%), and Chengxing Co. (+24.63%) [2][11]. - The report highlights the benefits of rising prices in lithium hexafluorophosphate for companies like Duofu and Shenzhen New Star, and the high demand in the phosphorus chemical sector for Yuntianhua [5]. Industry Performance - The chemical industry had 25 sub-sectors increase in value, with the top five being phosphate fertilizers (+18.15%), phosphorus chemicals and phosphates (+13.61%), and inorganic salts (+12.12%) [3][15]. - The dynamic PE for the chemical sector is reported at 22.57 times, significantly higher than the average PE of 11.23 times since 2015 [2][11]. Price and Margin Trends - The top five products with the highest weekly price increases include folic acid (+20%), nitric acid (+10.43%), and sulfur (+9.95%) [4][18]. - The report also notes significant price drops for liquid chlorine (-34%) and butadiene (-7.69%) [4][18]. - The price margin for sodium tripolyphosphate increased by 27.63%, while the margin for propylene (methanol-based) saw a drastic decrease of 826% [4][38]. Inventory Changes - Significant inventory changes were noted, with polyester filament showing a decrease of 26.81% and epoxy propane increasing by 8.53% [5][60]. Recommendations - The report maintains a recommendation for companies benefiting from the price increase of lithium hexafluorophosphate and those in the phosphorus chemical sector [5].