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].

油价上涨，液氯、尿素、聚合 MDI 价格 涨幅居前 ——基础化工行业周报（2025.5.2-2025.5.9） [Table_Rating] 增持（维持） [◼Table_Summary] 市场行情走势 过去一周（5.6-5.9），基础化工指数涨跌幅为2.07%，沪深300指数涨 跌幅为2.00%，基础化工板块跑赢沪深300指数0.07个百分点，涨跌幅 居 于所 有板块 第13位。基 础化 工子行 业涨 跌幅 靠前 的有： 粘胶 （6.05%）、胶黏剂及胶带（5.95%）、其他橡胶制品（5.50%）、其 他化学原料（5.12%）、其他化学纤维（5.02%）。 ◼ 化工品价格走势 周涨幅排名前五的产品分别为：液氯（7.45%） 、 国 际 硫 磺 （5.60%） 、 国 际 甲 苯 （3.22%） 、 国 际DAP（3.03%） 、TDI （2.83%）。周跌幅前五的产品分别为：顺酐（-9.07%）、环己酮（- 7.54%）、煤焦油（太钢焦化）（-7.35%）、国产溶解浆（-6.76%）、 国产维生素C（-6.52%）。 ◼ 行业重要动态 原油价格上行。截至5月9日，布伦特原油收盘价63.88美元/桶，WTI原 ...