化工龙头ETF（516220）涨超1.8%，行业供给侧优化预期受关注

Group 1 - The supply side is expected to undergo structural optimization, with domestic policies frequently mentioning "anti-involution" and overseas chemical companies in Europe and America shutting down or exiting capacity due to rising raw material costs and Asian production impacts [1] - Short-term geopolitical tensions are increasing uncertainty in overseas supply, while China is expected to reshape the global chemical landscape in the long term due to its cost and technological advantages [1] - Key sectors to focus on include organic silicon, membrane materials, chlor-alkali, and dyes, as well as leading companies in coal chemical, fluorinated refrigerants, and pesticides [1] Group 2 - The three generations of refrigerants are experiencing price increases due to quota restrictions and rising demand, with significant price increases for R32, R134a, and R125 within the year, leading to substantial profit growth for related companies [1] - The demand for health additives and sugar substitutes is rising under new consumption trends, indicating a potential recovery in the food additives industry [1] - The self-sufficiency rate of new chemical materials is approximately 56%, with accelerated domestic substitution creating development opportunities in areas such as photoresists and high-end engineering plastics [1] Group 3 - The chemical leader ETF (516220) tracks a specialized chemical index (000813) that focuses on sub-sectors within the Chinese chemical industry, including specialty chemicals, fertilizers, and pesticides, reflecting the overall performance of high-growth and technologically advanced chemical companies [1] - The index components are primarily companies with leading advantages in specific chemical products or technologies, emphasizing new materials and fine chemicals, which showcase the innovation and development dynamics of the chemical industry [1]