Guoxin Securities·2025-12-26 09:00Investment Rating - The investment rating for the cleanroom engineering sector is "Outperform the Market" (maintained) [2][3]. Core Insights - The cleanroom engineering sector is becoming a key focus in AI infrastructure as capital expenditures shift towards engineering investments, with cleanroom projects representing a significant portion of this trend [5][6]. - Major companies in the cleanroom sector, such as Yaxiang Integration and Shenghui Integration, are positioned to benefit from the increasing demand for cleanroom construction driven by the urgent expansion needs of leading firms like Micron [5][28]. - The cleanroom engineering segment is critical for the AI computing industry, accounting for approximately 60% of engineering investments related to chip production [16][18]. Summary by Sections Market Performance - From December to the present, major cleanroom sector stocks have seen significant increases, with Yaxiang Integration rising by 74%, Shenghui Integration by 60%, and Meiyai Technology by 52% [4]. Industry Dynamics - The cleanroom engineering industry is experiencing explosive growth in demand due to the global AI capacity expansion, which is currently constrained by limited construction capabilities [22][23]. - The complexity and customization of cleanroom projects create high entry barriers, resulting in strong customer loyalty and long-term relationships between clients and engineering service providers [25][27]. Future Outlook - As AI infrastructure transitions from procurement to construction, the proportion of capital expenditure directed towards engineering will significantly increase, making cleanroom engineering a central component of this evolution [6][28]. - The cleanroom engineering market is expected to continue its upward trajectory, driven by the urgent needs of major clients and the limited supply of qualified engineering resources [23][28].