化工行业周报：萤石开采受限，制冷剂价格维持高位

Investment Rating - The report maintains a "Positive" investment rating for the chemical industry [3]. Core Insights - The overall market index showed an upward trend, with the Shanghai Composite Index closing at 3330.73, down 3.52% for the week, while the chemical sector declined by 2.91% [6][17]. - The top five gaining stocks in the chemical sector were: - Bofei Electric (+30.86%) - Jiaao Environmental Protection (+25.71%) - Danhua Technology (+19.59%) - Jinjis Co. (+14.78%) - Weisaibo (+14.10%) - The top five losing stocks were: - Lanfeng Biochemical (-25.85%) - Yanggu Huatai (-18.68%) - Sidike (-15.83%) - Tiensheng New Materials (-14.68%) - Sanfangxiang (-13.51%) [24][25]. Summary by Sections 1. Weekly Chemical Market Review - The chemical sector's performance was mixed, with synthetic resin increasing by 3.66%, while viscose and phosphate fertilizer sectors saw declines of 9.55% and 7.26% respectively [19]. 2. Chemical Product Price Changes 2.1 Crude Oil Price Changes - Crude oil prices fell by 3.68% during the week, influenced by various market factors including supply disruptions and demand uncertainties [26]. 2.2 Chemical Product Price Movements - The top five gaining chemical products were: - Liquid chlorine: increased by 52% to 152 CNY/ton - Folic acid: increased by 19.32% to 210 CNY/kg - n-Propanol: increased by 9.64% to 10,800 CNY/ton - Acetic acid n-propyl ester: increased by 6.50% to 9,010 CNY/ton - n-Butyraldehyde: increased by 5.97% to 7,100 CNY/ton - The top five losing chemical products were: - Acetone cyanohydrin: decreased by 21.88% to 7,500 CNY/ton - Electronic-grade ammonia (G5): decreased by 20.00% to 4,000 CNY/ton - Calcium phosphate (12% granules): decreased by 10.96% to 650 CNY/ton - Butadiene: decreased by 10.67% to 9,625 CNY/ton - Ethyl acrylate: decreased by 5.35% to 8,850 CNY/ton [32][33][34]. 3. Investment Recommendations - Focus on high-end optical materials domestic substitution, particularly products like OCA optical adhesive and optical films, with recommended companies including Sidike and Dongcai Technology [7]. - Attention to the animal nutrition sector, particularly the demand for amino acids like threonine and lysine due to reduced soybean meal usage [7]. - Recommendations for leading chemical companies benefiting from lower natural gas prices and recovering downstream demand, including Satellite Chemical and Wanhua Chemical [7].