KAIYUAN SECURITIES·2025-12-22 13:14Investment Rating - The industry investment rating is "Overweight" (maintained) [1] Core Insights - The demand for optical fibers and cables is expected to be driven by the construction of AI data centers and DCI interconnections, with a significant increase in global demand anticipated due to the ongoing evolution of AI large model training and application deployment [4] - The supply side faces challenges as the production cycle for optical preforms is long and the manufacturing process is complex, leading to potential short-term supply tightness [5] - The report highlights a potential supply-demand imbalance in the short term, with a recommendation to focus on investment opportunities in the optical fiber and cable sector [6] Demand Side Summary - The demand for optical fibers and cables is expected to grow due to the increasing need for high-density and low-power data transmission in data centers, driven by AI applications [4] - The G.654.E optical fiber is noted for its ability to enhance transmission distance and system capacity, contributing to the development of more efficient long-distance high-bandwidth networks [4] - New technologies such as hollow-core fibers are being actively developed, which may lead to increased demand in the long term due to their advantages in low latency and low loss [4] Supply Side Summary - The production of optical preforms is characterized by a long expansion cycle and high technical requirements, which may lead to a tight supply situation in the short term [5] - The report cites predictions from the Asia-Pacific Optical Fiber and Cable Industry Association and the China Academy of Information and Communications Technology, estimating that global demand for optical fibers and cables could reach hundreds of millions of core kilometers by 2025 [5] - Prices for optical fibers have shown a significant rebound since May, indicating a positive outlook for demand and pricing driven by AI data center construction [5] Investment Opportunities - The report recommends focusing on investment opportunities in the optical fiber and cable sector, specifically highlighting companies such as Hengtong Optic-Electric and Zhongtian Technology as primary targets, with additional beneficiaries including Yangtze Optical Fibre and Cable, Yongding Co., FiberHome Technologies, and TeFa Information [6]