化工行业报告（2026.01.26-2026.02.01）：关注淡季补库涨价品种粘胶、染料，化工景气度有望持续上行

Industry Investment Rating - The industry investment rating is maintained at "Outperform" [2] Core Insights - The basic chemical industry index closed at 4943.97 points, up 0.65% from the previous week, outperforming the CSI 300 index by 0.01% [5][17] - In the sub-sectors, 13 out of 25 reported gains, with textile chemical products, other chemical raw materials, compound fertilizers, coal chemicals, and phosphate fertilizers leading with weekly increases of 13.89%, 6.58%, 4.94%, 4.72%, and 4.56% respectively [18] - The dye market is experiencing price increases, with disperse dye prices rising from 18,000 CNY/ton to 19,000 CNY/ton within a week, driven by a surge in the prices of upstream key intermediates [6] - The viscose fiber industry shows a strong basis for price increases due to high operating rates and low inventory levels, with total industry inventory at 100,000 tons, down 24.53% week-on-week [7][8] - The PVC industry is progressing towards mercury-free production, which is expected to improve the supply-demand balance as outdated capacities are phased out [8] Summary by Sections Weekly Chemical Sector Review - The basic chemical industry index rose to 4943.97 points, outperforming the CSI 300 index [17] - 90% of the 462 stocks in the chemical sector saw weekly gains, with the top gainers including Jiangtian Chemical and Runbei Hangke [21] Key Chemical Subsector Tracking - Polyester Filament: Prices increased slightly, with POY averaging 6,870 CNY/ton, up 160 CNY/ton from last week [27] - Tires: The full steel tire industry operating rate is at 62.47%, showing a slight decrease, while half steel tire rates increased to 74.32% [37]