基础化工行业周报：乙烷进口关税下调，光刻胶企业恒坤新材IPO获受理，继续关注化工核心资产及新材料成长

Investment Rating - The industry investment rating is maintained as "Recommended" [2] Core Insights - The reduction of ethane import tariffs is expected to enhance the profitability of related companies [2] - The report highlights the growth potential of domestic OLED and semiconductor material industries, driven by the increasing demand from new smartphone releases [4] - The report suggests focusing on companies involved in the production of core materials, particularly in the OLED and semiconductor sectors [4] Summary by Sections Industry Overview - The report emphasizes the importance of new materials as the foundation of advanced manufacturing, aligning with the direction of new productive forces [4] - The domestic market is witnessing a surge in demand for OLED and semiconductor materials due to the release of new smartphone models [4] Policy Impact - The report notes that supply constraints due to policy restrictions are likely to sustain the long-term price stability of refrigerants [5] - It suggests monitoring companies like Juhua Co. and Sanmei Co. for potential investment opportunities in the refrigerant sector [5] Price Trends - Methanol prices have continued to rise, with the domestic operating rate at 85.01%, reflecting a 0.71 percentage point decrease [16] - The price of propylene acid has also increased, with the domestic industry operating rate at 66.32%, down by 2.50 percentage points [18] Recommendations - The report recommends focusing on leading companies in the domestic ethylene production sector, such as Wanhua Chemical and Longbai Group, as they are expected to benefit from the stabilization of the real estate market [13] - It also highlights the potential of companies involved in the production of OLED materials and semiconductor materials, such as New Zobang and Ruifeng New Materials [4]