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

Group 1 - The basic chemical industry index closed at 4943.97 points, up 0.65% from last Friday, and outperformed the CSI 300 index by 0.01% this week [1][2] - Among the 25 sub-industries in the Shenwan chemical classification, 13 sub-industries rose while 12 fell. The leading sectors included textile chemical products, other chemical raw materials, compound fertilizers, coal chemicals, and phosphate fertilizers, with weekly increases of 13.89%, 6.58%, 4.94%, 4.72%, and 4.56% respectively [1][2] - The sectors that experienced declines included modified plastics, synthetic resins, and other plastic products, with weekly decreases of -6.44%, -4.36%, and -3.67% respectively [1][2] Group 2 - The price of disperse dyes has increased, with a rise of 1000 yuan/ton to 18000 yuan/ton on January 22, 2026, marking the first price adjustment in nearly a quarter [3] - The price of active dyes rose from 22000 yuan/ton to 23000 yuan/ton on January 29, 2026, driven by a significant increase in the price of upstream key intermediates [3] - The price of key intermediates used in dye production has surged from 25000 yuan/ton to 38000 yuan/ton, an increase of over 50%, impacting downstream dye prices [3] Group 3 - The viscose fiber industry is experiencing high operating rates and low inventory levels, creating a basis for price increases. The industry operating rate has remained above 90% since September 2025, with total inventory at 10000 tons as of January 30, 2026, down 24.53% week-on-week [4] - The inventory days are estimated to be around 9 days, indicating a relatively low inventory level and favorable conditions for price increases in the viscose industry [4] Group 4 - The PVC industry is advancing towards mercury-free production, with the Ministry of Ecology and Environment focusing on the development of mercury-free catalysts. The industry has achieved a target of halving mercury usage per unit product by 2020 compared to 2010 [5] - The transition from "low mercury" to "mercury-free" production is expected to lead to the exit of outdated production capacities, thereby restoring the supply-demand balance in the PVC industry [5]