化工行业周报2025年9月第4周：石化化工行业稳增长方案出台，建议关注草甘膦行业-20250929

Investment Rating - The report suggests a focus on the glyphosate industry due to its price increase and potential growth from innovative drugs [5]. Core Viewpoints - The chemical sector experienced a decline of 0.95% in the fourth week of September, lagging behind the Shanghai A-share index, which rose by 0.21% [2][13]. - The dynamic PE of the chemical sector is 28.52 times, which is higher than the average PE of 23.89 times since 2015 [2][13]. - The report highlights the performance of specific companies, recommending Jiangshan Chemical for benefiting from glyphosate price increases and Wanhu Chemical and Baofeng Energy as industry leaders likely to benefit from the chemical sector's recovery [5]. Industry Performance - In the fourth week of September, 13 sub-industries in the chemical sector rose while 19 fell. The top five gaining sub-industries were: - Viscose (+6.42%) - Explosives (+4.05%) - Other chemical products (+3.96%) - Other fibers (+3.06%) - Polyester (+2.89%) - The top five declining sub-industries were: - SW Oil Trade (-12.17%) - SW Tires (-6.60%) - SW Oil Processing (-2.54%) - SW Polyurethane (-2.04%) - SW Chlor-alkali (-0.05%) [3][17]. Chemical Prices and Spreads - The report lists the top five products with the highest weekly price increases: - Methyl acrylate (+8.03%) - Dichloropropane (+6.15%) - PTA (+4.51%) - Isobutyl acrylate (+4.32%) - PX (CFR China) (+3.64%) - The top five products with the largest price declines were: - Liquid chlorine (-51.01%) - Tetrachloroethylene (-4.91%) - Neopentyl glycol (-4.88%) - Methyl chloride (-4.76%) - Organic silicon DMC (-4.35%) [4][21]. Inventory Changes - The report notes significant inventory changes for key products: - Polyester chips (-10.17%) - Ethylene glycol (+7.77%) - Monoammonium phosphate (+7.49%) - Polyester filament (-5.86%) - Propylene oxide (+5.30%) [5][63].