Changjiang Securities·2026-03-09 05:45Investment Rating - The industry investment rating is "Positive" and maintained [9] Core Viewpoints - The current supply of transformers overseas is tight, particularly for high-voltage transformers, which is expected to accelerate the export of domestic transformer supply chains due to the demand driven by AI-related power shortages in the U.S. [2][4][42] - Domestic liquid transformer export values are projected to grow by 40%-50% year-on-year for 2024 and 2025, driven by the ongoing tight supply situation in overseas transformer capacity [17][19] Supply Capacity Analysis - The supply shortage of high-voltage transformers can be assessed from two perspectives: 1. Delivery times of overseas high-voltage transformer companies, with leading firms like Hitachi, Siemens Energy, and GE witnessing a continuous increase in their order backlogs, indicating a rising supply tightness [5][20] 2. The prices of overseas transformers have been increasing, reflecting the tight supply situation, as evidenced by the rising profit margins of leading companies and the overall growth in the Producer Price Index (PPI) for the U.S. power and specialty transformer manufacturing sector [23][25] Expansion Challenges - The production factors for transformers include site, machinery, components (raw materials), and labor. The bottlenecks for expansion are primarily in components and labor, particularly for high-voltage transformers [6][27] 1. Key components for high-voltage transformers include silicon steel, electromagnetic wire, tap changers, insulators, insulation paperboard, and oil tanks, with limited qualified suppliers overseas [28][31] 2. Labor is a significant challenge due to the complexity of high-voltage transformer production, which requires specialized technical personnel that are currently scarce in the overseas market [31][32] Future Expansion Pace - The capacity expansion for overseas high-voltage transformers is expected to be slow, with significant projects taking two years or more from announcement to production. The planned production scale for 2026 and 2027 is relatively small, primarily in Europe, with more substantial capacity releases anticipated in North America after 2028 [39][42]