Investment Rating - The report maintains an "Overweight" rating for the basic chemical industry [1][7]. Core Viewpoints - The basic chemical index underperformed the CSI 300 index by 1.05 percentage points, with a decline of 1.23% over the past week [3][13]. - Key sub-industries showing positive performance include rubber additives (16.99%), polyurethane (3.37%), carbon black (3.30%), titanium dioxide (2.38%), and spandex (2.33%) [14]. - The report highlights significant price increases in several chemical products, with sodium rising by 18.03%, coal tar (Tai Steel Coking) by 11.43%, and acrylic acid by 10.79% [20][25]. Summary by Sections Market Trends - The basic chemical index decreased by 1.23%, while the CSI 300 index fell by 0.18%, indicating a relative underperformance of the basic chemical sector [3][13]. - The top-performing sub-industries included rubber additives and polyurethane, while the overall sector ranked 21st among all sectors [14]. Chemical Price Trends - The top five products with the highest weekly price increases were sodium (18.03%), coal tar (Tai Steel Coking) (11.43%), acrylic acid (10.79%), international phosphate rock (10.00%), and coal tar (Yangtze River Delta) (7.84%) [20][25]. - Conversely, the products with the largest price declines included trichloromethane (-6.81%), butadiene (-5.41%), and raw salt (-4.00%) [20][21]. Investment Recommendations - The report suggests focusing on several key sectors: 1. Refrigerants, with companies like Jinshi Resources and Juhua Co. recommended. 2. Chemical fibers, with a focus on Huafeng Chemical and Xin Fengming. 3. Quality stocks such as Wanhua Chemical and Hualu Hengsheng. 4. Tire sector, recommending Sailun Tire and Senqilin. 5. Agricultural chemicals, with a focus on Yara International and Salt Lake Co. 6. Growth stocks like Blue Sky Technology and Shengquan Group [7][42].