【基础化工】25年基化涨幅靠前，26年关注周期修复及高景气成长板块——行业周报（20251222-1226）（赵乃迪/周家诺）

Group 1 - The core viewpoint of the article highlights that the basic chemical sector is expected to show significant growth, with a year-to-date increase of +41.4% as of December 26, 2025, ranking it fifth among all industries [3] - The basic chemical industry experienced a cyclical pattern in 2025, characterized by weak performance in the first half, a rebound driven by improved expectations in the middle, and active structural trends in the latter part of the year [3] - The performance of the basic chemical sector varied significantly across sub-industries, with lithium battery materials and phosphate chemicals benefiting from better-than-expected production and supply-demand improvements, leading to substantial price increases [3] Group 2 - The macroeconomic environment is gradually recovering, establishing a bottoming trend for the chemical industry, with downstream companies in a replenishment phase, which is expected to improve profitability [4] - The agricultural chemicals sector performed relatively well, with high prices for phosphate and potash fertilizers, while the pesticide industry is entering an initial recovery phase [4] - The lithium battery materials sector is seeing a significant recovery in profitability due to strong terminal demand and orderly expansion by leading companies [4] Group 3 - Emerging application areas such as AI, OLED, and robotics are becoming new growth engines for the basic chemical industry, driving strong demand for new materials [5] - The semiconductor industry is expanding due to increased AI computing power and data center construction, which in turn boosts demand for key materials like photoresists and electronic chemicals [5] - The rapid development of the humanoid robot industry is creating new demand for high-performance materials, with specific materials like PEEK and MXD6 showing high application potential due to their lightweight and high-strength characteristics [5]