Core Insights - The report highlights significant revenue growth for the companies analyzed, with New Yisong achieving a revenue of 10.44 billion yuan in the first half of 2025, a year-on-year increase of 282.6% [6] - The report indicates a strong performance in the optical module market, driven by high demand for advanced products such as 1.6T modules and silicon photonics [6][12] - The North American ASIC custom chip market is expected to continue growing, benefiting major suppliers like New Yisong, with projected shipments reaching 5 million units in 2025 [6] Company Summaries New Yisong (300502.SZ) - In the first half of 2025, New Yisong reported a revenue of 10.44 billion yuan, up 282.6% year-on-year, and a net profit of 3.94 billion yuan, an increase of 355.7% [6] - The company’s optical module production capacity reached 15.2 million units, with a production volume of 7.1 million units, reflecting growth of 66.7% and 86.4% respectively [6] - The gross margin improved to 47.4%, up 2.7 percentage points from the previous year, indicating effective cost control and strong demand from key customers [6] Tianfu Communication (300394.SZ) - Tianfu Communication achieved a revenue of 2.46 billion yuan in the first half of 2025, a year-on-year increase of 57.8%, with a net profit of 900 million yuan, up 37.5% [10] - The company’s active business segment saw substantial growth, driven by high-speed active products and ongoing expansion of its Thai factory [10][11] - The demand for 1.6T optical modules is expected to rise significantly, supported by Nvidia's upcoming product launches [10][11] Dekeli (688205.SH) - Dekeli reported a revenue of 430 million yuan in the first half of 2025, a 5.9% increase, but net profit fell by 48.2% to 30 million yuan [14] - The decline in performance is attributed to reduced demand in the telecommunications transmission market and insufficient capacity release in the DCI segment [14][15] - The company is focusing on the development of silicon-based OCS technology, with sample orders already received, indicating potential future growth [17]

Investment Rating - The report suggests a positive investment outlook for the hollow-core fiber industry, with a projected compound annual growth rate (CAGR) of 56.52% over the next six years [6][39]. Core Insights - Hollow-core fiber, utilizing air as the transmission medium, offers significantly lower latency (30% reduction compared to traditional fibers) and lower loss (below 0.1 dB/km), making it suitable for time-sensitive applications such as financial high-frequency trading and AI data center interconnections [6][14]. - Microsoft is leading the commercialization of hollow-core fiber technology, planning to deploy 15,000 kilometers for data center and AI model connections within the next 24 months [6][34]. - The hollow-core fiber market is still in its early commercialization phase, with significant growth opportunities as demand from data center interconnections (DCI) expands [6][39]. Summary by Sections Hollow-Core Fiber Technology - Hollow-core fiber transmits over 95% of its energy in air, resulting in minimal non-linear effects and high thermal stability, which supports high-speed data transmission [6][12]. - The technology is expected to revolutionize traditional fiber optics by overcoming physical limitations associated with glass fibers [6][14]. Market Dynamics - The global market for hollow-core fiber is projected to reach $1 billion by the end of 2030, driven by rapid DCI business expansion [6][39]. - The competitive landscape is expected to remain stable, dominated by major players like Corning and domestic companies such as Yangtze Optical Fibre and Cable [6][39]. Domestic Developments - China Mobile's first commercial deployment of hollow-core fiber in July 2025 marks a significant milestone in the domestic market, with expectations for increased demand and reduced costs as production scales up [6][46]. - Major Chinese companies like Yangtze Optical and Hengtong are making technological breakthroughs that will further drive down costs and enhance market adoption [6][49]. Investment Recommendations - The report highlights key companies to watch, including Yangtze Optical Fibre, Hengtong, and FiberHome, which are positioned to benefit from the growth in hollow-core fiber technology and DCI demand [6][46].

Summary of Key Points from Conference Call Records Industry Overview - The global AI sector is experiencing significant growth, particularly in areas such as optical modules, silicon photonics, liquid cooling, and data center interconnect (DCI) [1][2] - Companies in the AI supply chain are reporting strong financial results, leading to increased capital expenditures and upward revisions of performance guidance [2] Company Insights: Celestica - Celestica raised its 2025 revenue guidance from $10.85 billion to $11.55 billion, with an adjusted operating margin increase from 7.2% to 7.4% [1][5] - The company serves major clients like Google, Meta, and Amazon, indicating strong demand for their ASIC switch products [5] - In Q2, Celestica reported revenue of $2.89 billion, a 21% year-over-year increase, exceeding the company's expectations [5] - The CCS business (including networking, servers, and storage) generated $2.07 billion in revenue, up 28% year-over-year, accounting for 72% of total revenue [5] - The demand for high-speed optical modules (800G and 1.6T) and silicon photonics is expected to grow significantly due to the high ratio of ASIC chips to optical modules (1:8 or higher) [1][5] Google Financial Performance - Google reported Q2 2025 revenue of $96.4 billion, a 13.8% year-over-year increase, with operating profit rising 31.7% [10] - The company’s cloud backlog reached $106 billion, a 38% year-over-year increase, indicating strong demand for cloud services [10] - Google’s capital expenditures for Q2 reached $22.446 billion, a 70% increase year-over-year, primarily for technology infrastructure [14] Liquid Cooling Technology - The demand for liquid cooling solutions is expected to rise significantly, driven by the increasing power density of GPUs and ASICs [15] - AWS has adopted liquid cooling solutions in its GB200 cabinets, which will accelerate the adoption of liquid cooling in switch modules [15] - The ETIC ramp-up is anticipated to boost the overall penetration of liquid cooling technology in the market [4][6] Investment Recommendations - Optimistic outlook on several segments including high-speed optical modules, silicon photonics, liquid cooling systems, and DCI [7] - Recommended stocks include: - Optical Modules: Zhongji Xuchuang - Optical Chips: Yuanjie Technology, Changguang Huaxin - Liquid Cooling Systems: Invec - AI Data Centers: Xinyi Network Group [8] Emerging Trends in Optical Communication - The optical communication sector is witnessing heightened investment interest, particularly in the context of increased demand for computing power [16] - Leading companies like Xuchuang and Xinyi Sheng are expected to gain market share due to rising demand for related equipment [16] - Attention should also be given to emerging technologies such as silicon photonics and CPO/OIO, which are likely to enhance market focus [16]

Investment Rating - The report adjusts the investment rating of the company to "Accumulate-A" [4][10]. Core Views - The company reported a slight increase in revenue and profit for 2024, achieving revenue of 840 million yuan, a year-on-year growth of 2.8%. The transmission product line saw a revenue decline of 3.5% to 720 million yuan, primarily due to a slowdown in domestic transmission network investments. In contrast, the data and access product line revenue surged by 70% to 100 million yuan, driven by strong demand for DCI subsystem products since the second half of 2024 [4][5]. - The first quarter of 2025 showed a slight revenue increase to 200 million yuan, but net profit decreased by 36.8% year-on-year to 20 million yuan, reflecting challenges in performance expectations [4][5]. - The DCI market in North America is experiencing strong demand, with the company holding competitive advantages in DCI optical and electrical layers. The company has completed the development of a full range of DCI equipment and is actively expanding production capacity [6][10]. Financial Data Summary - The company’s projected revenue for 2025 is 1.25 billion yuan, with net profit expected to reach 139 million yuan, reflecting a year-on-year growth of 38% [10][12]. - The gross margin is expected to improve gradually, with projections of 31.7% in 2025 and 33.3% in 2026 [12][14]. - The company’s earnings per share (EPS) is forecasted to be 1.15 yuan in 2025, increasing to 2.38 yuan by 2027 [12][14].