证券代码：300570 证券简称：太辰光 公告编号：2026-001 深圳太辰光通信股份有限公司 关于 2024 年员工持股计划第二个锁定期届满的提示性公告 本公司及董事会全体成员保证信息披露的内容真实、准确、完整，没有虚假记载、 误导性陈述或重大遗漏。 次会议审议通过了《关于 2024 年员工持股计划第一个锁定期解锁条件成就的议案》， 具体内容详见 2025 年 3 月 29 日在巨潮资讯网（http://www.cninfo.com.cn）披露 的相关公告。 深圳太辰光通信股份有限公司（以下简称"公司"）第五届董事会第三次会议、第 五届监事会第三次会议以及 2024年第一次临时股东大会审议通过了《关于<公司2024 年员工持股计划（草案）>及其摘要的议案》等相关议案，同意公司实施 2024 年员工 持股计划（以下简称"本持股计划"或"本员工持股计划"），具体内容详见 2024 年 2 月 22 日和 2024 年 3 月 8 日披露于巨潮资讯网（http://www.cninfo.com.cn）的相 关公告。 鉴于公司本员工持股计划第二个锁定期于 2026 年 3 月 14 日届满，根据中国证监 会《关于 ...

Group 1 - The A-share market saw a collective decline in CPO concept stocks, with New Yisheng dropping by 7% [1] - Zhongji Xuchuang, Taicheng Guang, and Changxin Bochuang experienced declines exceeding 6% [1] - Zhili Fang and Dekeli fell by more than 5%, while Shijia Guangzi, Cambridge Technology, Guangku Technology, Jingwang Electronics, and Robotech dropped over 4% [1] - Lian Te Technology, Huilv Ecology, and Juguang Technology saw declines of more than 3% [1]

Core Viewpoint - The CPO concept stocks in the A-share market experienced a collective decline, with significant drops in several key stocks on February 27, indicating a bearish trend in this sector [1]. Group 1: Stock Performance - Xinyisheng (新易盛) fell by 7.02%, with a total market capitalization of 35.67 billion and a year-to-date decline of 16.72% [2]. - Zhongji Xuchuang (中际旭创) decreased by 6.40%, having a market cap of 59.51 billion and a year-to-date drop of 12.20% [2]. - Taichengguang (太辰光) saw a decline of 6.34%, with a market value of 30.6 billion and a year-to-date increase of 16.48% [2]. - Changxin Bochuang (长芯博创) dropped by 6.16%, with a market cap of 43 billion and a year-to-date increase of 3.74% [2]. - Zhili Fang (智立方) decreased by 5.54%, with a market capitalization of 10.1 billion and a year-to-date increase of 67.18% [2]. - Dekeli (德科立) fell by 5.41%, with a market cap of 25.5 billion and a year-to-date increase of 16.96% [2]. - Shijia Guangzi (仕佳光子) declined by 4.88%, with a market value of 37.8 billion and a year-to-date drop of 5.77% [2]. - Cambridge Technology (剑桥科技) decreased by 4.86%, with a market cap of 36.3 billion and a year-to-date drop of 23.31% [2]. - Guangku Technology (光库科技) fell by 4.38%, with a market value of 40.6 billion and a year-to-date increase of 10.83% [2]. - Jingwang Electronics (景旺电子) saw a decline of 4.28%, with a market cap of 65.3 billion and a year-to-date drop of 9.34% [2]. - Robot Technology (罗博特) decreased by 4.19%, with a market value of 63.7 billion and a year-to-date increase of 62.91% [2]. - Liante Technology (联特科技) fell by 3.64%, with a market cap of 23.8 billion and a year-to-date increase of 8.70% [2]. - Huilv Ecology (汇绿生态) decreased by 3.03%, with a market value of 23.4 billion and a year-to-date increase of 36.03% [2]. - Juguang Technology (炬光科技) fell by 3.01%, with a market cap of 33.2 billion and a year-to-date increase of 111.22% [2]. - Tiantong Co. (天通股份) decreased by 2.96%, with a market value of 21 billion and a year-to-date increase of 29.78% [2]. - Tianfu Communication (天孚通信) fell by 2.53%, with a market cap of 274.3 billion and a year-to-date increase of 73.80% [2]. - Changjia Technology (长甲科技) decreased by 2.32%, with a market value of 85.2 billion and a year-to-date increase of 29.39% [2].

Group 1 - The core point of the news is that Shenzhen Taicheng Light Communication Co., Ltd. (太辰光) experienced a stock price increase of 5.17%, reaching 146.51 yuan per share, with a trading volume of 3.845 billion yuan and a turnover rate of 14.06%, resulting in a total market capitalization of 33.276 billion yuan [1] - The company, established on December 12, 2000, and listed on December 6, 2016, specializes in the research, production, and sales of optical devices, with 98.02% of its main business revenue coming from optical device products [1] - The revenue composition of the company includes 1.81% from other products and 0.17% from optical sensing products [1] Group 2 - From the perspective of fund holdings, one fund under Yinhua Fund has a significant position in Taicheng Light, with the Yinhua ChiNext 200 ETF (创业板200ETF银华) increasing its holdings by 700 shares to a total of 1,400 shares, representing 0.98% of the fund's net value, making it the ninth largest holding [2] - The Yinhua ChiNext 200 ETF was established on December 20, 2023, with a latest scale of 16.4771 million yuan, and has achieved a year-to-date return of 8.64%, ranking 1909 out of 5572 in its category [2] - The fund manager, Tan Yuefeng, has a total asset scale of 9.391 billion yuan, with the best fund return during his tenure being 80.99% and the worst being -44.45% [2]

Group 1 - The CPO concept experienced significant fluctuations, with companies such as Jufei Optoelectronics and Jepu Technology reaching a 20% limit-up [1] - Other companies including Guanghe Technology, Zhongtian Technology, and Hengtong Optoelectronics also hit the limit-up [1] - Additional firms like Tianfu Communication, Yongding Co., Zhongfu Circuit, Guangxun Technology, and Taicheng Light followed with notable increases [1]

Group 1 - Zhishang Technology experienced a decline of 12.32% [1] - Robotec saw a drop of 9.75% [1] - Taicheng Light fell by 8.09% [1] - Guangku Technology, Hengtong Optic-Electric, and Changfei Optical Fiber all dropped over 6% [1]

Summary of Conference Call Notes Industry Overview - **Industry**: Co-packaged optics (CPO) supply chain and optical components market - **Key Players**: Nvidia, TFC, T&S, Eoptolink, Lumentum, Corning Core Insights and Arguments 1. **CPO Deployment Timeline**: CPO is expected to start being deployed in scale-up networks by late 2027, with significant demand anticipated in the second half of 2027 [2][11][14] 2. **Market Size Projections**: - Total demand for CPO switches is projected to reach 209,000 units by 2027, up from previous estimates of 100,000 units [2][31] - Market sizes for key components in 2027 are forecasted as follows: - FAU/connectors: US$2.2 billion (Rmb15.7 billion) [3][31] - ELSFP modules: US$7.7 billion (Rmb55.4 billion) [3][31] - Fiber shuffle: US$5.6 billion (Rmb40.5 billion) [3][31] - Fiber tray: US$3.3 billion (Rmb24.0 billion) [3][31] 3. **Demand Adjustments**: The demand forecast for scale-out networks has been revised down from 100,000 to 40,000 units for 2027, while scale-up demand is expected to drive overall growth [2][12] 4. **Optical Transceiver Demand**: The forecast for optical transceivers demand in 2027 has been raised from 103 million to 115 million units, indicating stronger than expected market conditions [4][34] 5. **Stock Recommendations**: - TFC and T&S are identified as key beneficiaries in the upcoming CPO era, with Eoptolink also presenting an attractive risk-reward opportunity [5][39] - TFC is expected to be a major supplier for FAU/connectors and ELSFP modules, benefiting from early CPO deployment [53] Additional Important Insights 1. **Technological Advancements**: The upcoming Nvidia Rubin Ultra NVL576 rack, expected to launch in late 2027, will utilize CPO technology to enhance bandwidth and reduce latency [16][17] 2. **Market Dynamics**: The report highlights a potential oversubscription rate in the NVL576 architecture, indicating a robust demand for optical components [27] 3. **Supplier Landscape**: Key suppliers for the CPO supply chain include Lumentum, TFC, and Corning, with a focus on the integration of optical engines and switch ASICs [25][28] 4. **Earnings Estimates**: Earnings estimates for TFC and Eoptolink have been significantly raised, reflecting the anticipated demand surge in optical components [55][44] This summary encapsulates the critical insights from the conference call, focusing on the CPO supply chain's growth trajectory, market dynamics, and key players poised to benefit from upcoming technological advancements.

Core Viewpoint - The optical fiber and cable market is experiencing a significant price surge driven primarily by the demand from AI data centers, rather than traditional drivers like FTTH or 5G construction [1][2]. Group 1: Market Dynamics - Since the end of 2025, the price of G.652.D bare fiber has been continuously rising, surpassing 30 yuan per core kilometer by February 2026, with actual transaction prices concentrated between 40 to 50 yuan per core kilometer, reflecting an increase of 94% to 144% [1]. - The demand structure for optical fibers has fundamentally changed due to the high consumption levels and specifications required by AI data centers, which exceed those of traditional telecom networks [1]. - The demand for special fibers like G.657.A2 and hollow-core fibers has surged to meet the low-latency and high-bandwidth interconnection needs of GPU clusters [1]. Group 2: Supply Constraints - The core raw material for optical fibers, optical preform, accounts for about 70% of the fiber's cost and has a long production cycle of 1.5 to 2 years, leading to tight supply constraints [2]. - Following previous years of price wars and supply clearances, there has been little large-scale expansion in production capacity, causing a mismatch between rising demand and constrained supply [2]. - As high-end special fiber demand surges, preform manufacturers prioritize capacity for higher-margin products, further squeezing the production of standard fibers like G.652.D [2]. Group 3: Investment Opportunities - Companies with optical preform production capacity, such as Yangtze Optical Fibre and Cable, Hengtong Optic-electric, Zhongtian Technology, FiberHome, and Hangzhou Hikvision, are expected to benefit significantly from the price increase [3]. - Key suppliers in the upstream of the computing power supply chain, particularly in the optical module sector like Zhongji Xuchuang and NewEase, as well as optical device manufacturers like Tianfu Communication and Shijia Photon, are also highlighted as potential investment targets [3]. - Companies with advanced technological reserves, particularly those involved in next-generation technologies like hollow-core fibers, are likely to see valuation catalysts as these technologies enter operator trials [3].

Group 1 - The A-share CPO concept continues to weaken, with significant declines observed in various companies [1] - Changxin Bochuang experienced a drop of over 10% [1] - TeFa Information hit the daily limit down [1] Group 2 - Guangku Technology, Jieput, Tengjing Technology, Taicheng Light, and Tianfu Communication all fell by over 5% [1]

Group 1 - The A-share market saw a widespread decline in CPO concept stocks, with notable drops in several companies [1] - Hengtong Optic-Electric fell by 7%, while Changxin Bochuang and Jieput fell over 6% [1] - Dekeli and Changfei Optical Fiber experienced declines of over 5%, and Tiantong Co., Hengdong Light, and Taicheng Light dropped over 4% [1] Group 2 - Guangku Technology, Tianfu Communication, Shijia Photon, Robot Technology, Yongding Co., and Zhongtian Technology all saw declines exceeding 3% [1]