Investment Rating - The industry investment rating is "Overweight," indicating an expected outperformance of the industry index relative to the benchmark by more than 5% in the next six months [74]. Core Insights - The report highlights a rebound in prices for Vitamin A (VA) and Vitamin E (VE), with VA priced at 62.6 yuan/kg and VE at 49.5 yuan/kg, reflecting increases of 0.9 yuan/kg and 6.0 yuan/kg respectively [10][59][63]. - The polyurethane sector shows varied price movements, with pure MDI averaging 18,414 yuan/ton (+214 yuan/ton), polymer MDI at 14,293 yuan/ton (+7 yuan/ton), and TDI at 13,341 yuan/ton (-108 yuan/ton) [2][16]. - In the oil, coal, and gas olefin sector, ethane and propane prices are reported at 1,296 yuan/ton (-68 yuan/ton) and 3,934 yuan/ton (+157 yuan/ton) respectively, while the average price of polypropylene is 6,600 yuan/ton (-80 yuan/ton) [2][24]. - The coal chemical sector shows mixed results, with synthetic ammonia at 2,151 yuan/ton (-3 yuan/ton) and urea at 1,615 yuan/ton (+19 yuan/ton) [2][40]. - Key listed companies in the chemical sector include Wanhua Chemical, Baofeng Energy, Satellite Chemical, Hualu Hengsheng, New Chemical, and Andisu [2]. Summary by Sections 1. Polyurethane Sector - Average prices for pure MDI, polymer MDI, and TDI are 18,414 yuan/ton, 14,293 yuan/ton, and 13,341 yuan/ton respectively, with corresponding gross profits of 5,400 yuan/ton, 2,279 yuan/ton, and 1,918 yuan/ton [2][16]. 2. Oil, Coal, and Gas Olefin Sector - Ethane and propane average prices are 1,296 yuan/ton and 3,934 yuan/ton, with theoretical profits for polyethylene production from ethane at 947 yuan/ton [2][24][33]. 3. Coal Chemical Sector - Average prices for synthetic ammonia, urea, DMF, and acetic acid are 2,151 yuan/ton, 1,615 yuan/ton, 3,943 yuan/ton, and 2,330 yuan/ton respectively, with gross profits of 121 yuan/ton, -69 yuan/ton, -151 yuan/ton, and 80 yuan/ton [2][40][44]. 4. Animal Nutrition Sector - VA and VE prices are reported at 62.6 yuan/kg and 49.5 yuan/kg, with recent increases noted [10][59][63].