基础化工行业周报：国内半导体产业再遇美国制裁，国产化进程有望进一步加快

Investment Rating - The report maintains an "Overweight" rating for the basic chemical industry [6]. Core Insights - The U.S. Department of Commerce has added 140 Chinese companies to its entity list, prompting major Chinese industry associations to call for cautious procurement of U.S. chips, highlighting the importance of domestic semiconductor production and the acceleration of the localization process [2]. - Global semiconductor sales have rebounded, with a reported sales figure of approximately $456.7 billion for the first nine months of 2024, representing a year-on-year growth of about 19.9%. The semiconductor industry is expected to continue growing, with projected revenue increases of 16% in 2024 and over 10% in 2025 [3]. - The report emphasizes the investment value of leading domestic semiconductor companies as the localization process in semiconductor materials, equipment, and processes is expected to accelerate due to U.S. export controls [2][3]. Summary by Sections Market Review - The basic chemical sector has shown a positive trend, with the CSI Basic Chemical Index increasing by 1.3% over the past five trading days, ranking 26th among all sectors [4][10]. - The top-performing sub-sectors include viscose (+7.4%), chlor-alkali (+6.1%), and modified plastics (+4.8%) [15]. Key Product Price Tracking - Notable price increases in the past week include dichloromethane (+5.72%), aluminum fluoride (+5.54%), and DMF (+4.11%) [21]. - Conversely, products like high-temperature coal tar (-5.33%) and octanol (-3.41%) experienced price declines [23]. Sub-industry Dynamics - The polyester filament market has shown volatility, with prices initially rising before declining due to weakening demand [25]. - The polyurethane sector is facing a downturn, with reduced export orders and a decrease in domestic demand as the market enters a traditional off-season [25]. - The fertilizer market remains sluggish, with low demand from farmers and cautious purchasing behavior from distributors [25].