DING LONG(SZ:300054) GUOTAI HAITONG SECURITIES·2026-03-29 00:25Investment Rating - The investment rating for Dinglong Co., Ltd. is "Buy" [1][6]. Core Insights - Dinglong Co., Ltd. has shown significant growth in profitability for 2025, primarily driven by its semiconductor business, which contributes 57% to the company's total revenue [2][12]. - The company has successfully advanced its high-end photoresist products, with over 12 products currently in the gallon sample testing phase, indicating positive validation progress [2][12]. - The financial performance for 2025 includes a revenue of 3.66 billion yuan, a year-on-year increase of 9.66%, and a net profit attributable to shareholders of 678 million yuan, reflecting a 44.53% increase year-on-year [12][12]. Financial Summary - Total revenue projections for 2024A to 2028E are as follows: 3.34 billion yuan (2024A), 3.66 billion yuan (2025A), 4.24 billion yuan (2026E), 5.13 billion yuan (2027E), and 6.27 billion yuan (2028E), with growth rates of 25.1%, 9.7%, 15.9%, 21.0%, and 22.3% respectively [4]. - Net profit attributable to shareholders is projected to grow from 521 million yuan in 2024A to 1.67 billion yuan in 2028E, with growth rates of 134.5%, 38.3%, 39.2%, 29.9%, and 28.5% respectively [4]. - Earnings per share (EPS) is expected to increase from 0.55 yuan in 2024A to 1.77 yuan in 2028E [4]. Business Performance - The semiconductor segment's revenue for 2025 is projected at 2.09 billion yuan, a 37.27% increase year-on-year, making it the core profit pillar and strategic growth engine for the company [12]. - The CMP polishing pad business achieved a revenue of 1.09 billion yuan, up 52.34% year-on-year, while the CMP polishing liquid and cleaning liquid business generated 294 million yuan, reflecting a 36.84% increase [12]. - The company has made significant strides in product validation, with multiple products in the client testing phase, including breakthroughs in high-end wafer photoresist and copper polishing liquids [12].