证券代码：600330 证券简称：天通股份 公告编号：2026-011 （一）生产经营情况 天通控股股份有限公司 股票交易异常波动公告 本公司董事会及全体董事保证本公告内容不存在任何虚假记载、误导性陈述 或者重大遗漏，并对其内容的真实性、准确性和完整性承担法律责任。 重要内容提示： ●天通控股股份有限公司（以下简称"公司"）股票于 2026 年 3 月 10 日、3 月 11 日、3 月 12 日连续三个交易日内日收盘价格涨幅偏离值累计超过 20%，根 据《上海证券交易所交易规则》的有关规定，属于股票交易异常波动情形。 ●经自查，公司目前生产经营正常，内部生产经营秩序正常，主营业务未发 生重大变化，公司不存在其他应披露而未披露的重大信息。经书面征询公司控股 股东、实际控制人，截至本公告披露日，除公司已披露的事项外，不存在其他应 披露而未披露的重大信息。 ●近期公司股价短期涨幅较大，但行业及公司基本面均未发生重大变化，公 司郑重提醒广大投资者充分了解二级市场交易风险，理性投资、注意投资风险。 一、股票交易异常波动的具体情况 公司股票交易于 2026 年 3 月 10 日、3 月 11 日、3 月 12 日连续三 ...

本公司董事会及全体董事保证本公告内容不存在任何虚假记载、误导性陈述 或者重大遗漏，并对其内容的真实性、准确性和完整性承担法律责任。 重要内容提示： | 回购方案首次披露日 | 2025/4/29 | | | | | | | | --- | --- | --- | --- | --- | --- | --- | --- | | 回购方案实施期限 | 年 月 2025 4 | 4 | 28 | 日~2026 | 年 | 月 | 日 27 | | 预计回购金额 | 2,500万元~5,000万元 | | | | | | | | 回购用途 | □减少注册资本 √用于员工持股计划或股权激励 □用于转换公司可转债 | | | | | | | | | □为维护公司价值及股东权益 | | | | | | | | 累计已回购股数 | 254.11万股 | | | | | | | | 累计已回购股数占总股本比例 | 0.21% | | | | | | | | 累计已回购金额 | 2,500.68万元 | | | | | | | | 实际回购价格区间 | 6.93元/股~9.98元/股 | | | | | | | 证券代码：600 ...

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].

Summary of TianTong Co., Ltd. Conference Call Industry Overview - TianTong Co., Ltd. operates in the new materials sector, focusing on three key materials: 1. Soft magnetic materials, which have been in development since 1984 and show stable growth 2. Sapphire, which started development in 2010 and is expected to reach a low point in 2024, currently nearing breakeven 3. Lithium Niobate/Tantalate, which began development in 2016, driven by applications related to artificial intelligence, including optical modules, optical engines, and AI glasses waveguides [1][1][1] Key Insights and Arguments - Lithium Niobate has two application directions in data centers: 1. Optical engines for "optical in, copper out" within cabinets 2. 3.2T optical modules - At a 1.6T rate, silicon photonics remains mainstream but faces high costs and limited capacity issues - As the industry transitions to the 3.2T era, Lithium Niobate's advantages in loss and heat will become more pronounced, making it a key choice for modulators in Co-Packaged Optics (CPO) [1][1][1] Competitive Advantages - The company has achieved a full industry chain layout in the Lithium Niobate sector, covering key equipment, single crystal pulling, chip production, and thin-film Lithium Niobate - Globally, only two companies can supply thin-film Lithium Niobate wafers, with TianTong being the only supplier in mainland China - Only two companies can mass-produce 8-inch Lithium Niobate chips, with TianTong being one of them, providing strong advantages in cost, quality, and development capabilities [2][2][2] Technological Pathways - There are two main technological pathways for integrating thin-film Lithium Niobate with silicon photonics: 1. Wafer to Wafer: Direct integration of thin-film Lithium Niobate on silicon photonic chips 2. Dieto Wafer: Pre-manufacturing Lithium Niobate modulator chips and then bonding them to silicon photonic chips [3][3][3] Future Developments - The company currently supplies products from both pathways - If 12-inch thin-film Lithium Niobate is developed, the advantages of the Wafer to Wafer pathway will become more apparent - In AI glasses applications, Lithium Niobate is more advantageous than silicon carbide in terms of price, capacity, and compatibility with display modules, making it suitable for large-scale consumer electronics applications - 12-inch wafers are expected to achieve the highest efficiency in this field - Tantalate, as a "brother material" to Lithium Niobate, shows better performance in certain characteristics (e.g., temperature stability) but is still in the research and development phase for industrial applications - TianTong is the only manufacturer globally capable of mass-producing optical-grade 8-inch Tantalate [4][4][4]

Group 1 - XianDao Intelligent is a key player in high-end intelligent equipment, focusing on precision manufacturing and automation solutions, particularly in the PCB industry [1] - The company provides high-precision cutting, forming, and testing automation equipment for the PCB industry, enhancing production efficiency and yield for high-end products [1] - With the acceleration of AI server and data center construction, the demand for high-end processing equipment in the PCB industry continues to rise [1] Group 2 - Fangzheng Technology has a state-owned background and long-term industry accumulation in the electronic information field, focusing on the R&D, production, and sales of printed circuit boards (PCBs) [2] - The company is upgrading its PCB production lines, emphasizing high-layer and high-frequency boards to meet the demands of 5G communication and industrial internet [2] - Fangzheng Technology maintains a stable market position in the communication and industrial control PCB sectors, providing reliable PCB supply to downstream equipment manufacturers [2] Group 3 - Helitai is a privately held company with a complete layout in electronic components and display modules, focusing on FPC flexible circuit boards and rigid PCBs [3] - The company invests in automotive PCBs and flexible boards, enhancing performance to meet the increasing electronic penetration in new energy vehicles [3] - Helitai leverages its vertically integrated supply chain to optimize cost control and product yield, aligning with the trends of lightweight and high-reliability terminal devices [3] Group 4 - Nord shares focus on copper-based new materials and is a significant player in the domestic copper foil industry, with high-precision electrolytic copper foil as a core product [4] - The company is investing in high-end PCB copper foil R&D and production, optimizing thickness uniformity and surface roughness to meet market demands [4] - Nord shares are deeply integrated with the PCB upstream supply chain, supporting material upgrades in the industry [4] Group 5 - Beifang Copper Industry, controlled by local state assets, has integrated resource and processing advantages, focusing on cathode copper, copper rods, and copper foil [5] - The company is enhancing copper material purity and processing precision, developing ultra-thin PCB copper foil to meet stringent requirements for HDI and high-layer boards [5] - Beifang Copper Industry provides stable, high-quality basic material supply to the PCB industry, supporting the domestic material supply chain [5] Group 6 - Tongling Nonferrous Metals is a leading copper smelting and processing enterprise in China, with a complete industry chain from mining to processing [6] - The company focuses on PCB copper foil, which is crucial for the production of printed circuit boards, and is increasing its investment in high-end copper foil products [6] - Tongling Nonferrous Metals is also developing recycled copper business to promote green manufacturing in line with the PCB industry's low-carbon development trend [7] Group 7 - Huagong Technology, with strong technical research and development capabilities, provides laser processing equipment and high-end manufacturing solutions for the PCB industry [8] - The company’s products meet the high-precision processing needs of communication, server, and automotive electronics PCBs, benefiting from the expansion of the PCB industry driven by AI computing power [8][9] - Huagong Technology is positioned favorably in the domestic PCB equipment market, contributing to the industry's manufacturing level and production efficiency [8] Group 8 - Shenghong Technology specializes in high-end PCB products, including HDI and high-frequency boards, serving major clients in various sectors [9] - The company maintains high production efficiency and product stability, with a strong order backlog driven by the demand for AI servers [9] - Shenghong Technology is advancing its automotive PCB certification and production expansion, solidifying its position in the domestic PCB market [9] Group 9 - Deep Kangjia A is a state-owned enterprise with a diversified technology platform, focusing on high-end PCB products for communication and industrial control applications [10] - The company leverages group resources to optimize its PCB business structure and enhance collaboration with key downstream clients [10] - Deep Kangjia A is positioned to benefit from the recovery of consumer electronics and the advancement of computing infrastructure, maintaining stable growth in the PCB sector [10] Group 10 - Guanjie Technology is a leading global player in the display field, extending its business into PCB and electronic components [11] - The company’s PCB products align with trends towards lightweight and high integration, supporting the growing demand in smart displays and automotive applications [11] - Guanjie Technology optimizes its PCB business quality through vertical integration, enhancing its competitive position in the electronic components market [11] Group 11 - Tiantong Co., Ltd. specializes in soft magnetic materials and high-end equipment, providing precision processing and testing equipment for the PCB industry [12] - The company’s products enhance circuit stability and anti-interference capabilities, supporting the production of high-end PCBs [12] - Tiantong Co., Ltd. benefits from its dual focus on materials and equipment, providing essential support to the PCB industry [12] Group 12 - Huhua Electric is a leading enterprise in the PCB industry, focusing on high-reliability PCB products for communication and automotive applications [13] - The company has a strong technical foundation in high-frequency and high-speed PCB fields, supplying major global communication and automotive clients [13] - Huhua Electric is positioned to expand its high-end order volume and production capacity, maintaining a leading position in the global PCB market [13][14] Group 13 - Xingsen Technology is a leader in PCB samples and small batch production, serving a wide range of R&D clients across various sectors [15] - The company’s rapid delivery capabilities and flexible production model are industry-leading, making it a crucial supply chain partner during product development stages [15] - Xingsen Technology is expanding its high-end PCB production capacity, tapping into the server and automotive electronics markets [15] Group 14 - Dongshan Precision is a significant player in precision manufacturing, leading in FPC and PCB sectors [16] - The company’s FPC products are widely used in smart terminals and automotive applications, driving its core growth [16] - Dongshan Precision is optimizing its product structure to maintain strong competitiveness in the flexible circuit board and automotive PCB markets [16] Group 15 - Liyuan Information is a leading distributor of electronic components, connecting upstream manufacturers with downstream electronic manufacturers [17] - The company provides a comprehensive supply chain and technical support for PCB manufacturers, playing a critical role in the industry [17] - Liyuan Information is enhancing its collaboration with the PCB supply chain, improving supply chain efficiency and cost control [17] Group 16 - China Jushi is a global leader in the fiberglass industry, with a focus on electronic-grade fiberglass for PCB applications [18] - The company’s products are essential for PCB performance, meeting the demands of high-frequency and high-speed applications [18] - China Jushi is positioned to support the domestic material supply chain and play a vital role in the high-end material upgrade process [18] Group 17 - Zhongtung High-tech specializes in hard alloys and tungsten materials, providing critical consumables for PCB processing [19] - The company’s products meet high standards for hardness, wear resistance, and precision, supporting the production of high-end PCBs [19] - Zhongtung High-tech is leveraging its resource and technology advantages to maintain a significant position in the PCB specialized hard alloy materials market [19] Group 18 - Zhao Chi Co., Ltd. focuses on smart terminals and semiconductor products, with a strong PCB business for consumer electronics and smart home applications [20] - The company’s vertical integration allows for collaborative design and production, enhancing competitiveness in the PCB market [20] - Zhao Chi Co., Ltd. is optimizing its PCB production capabilities to meet the growing demand in consumer electronics and smart home sectors [20] Group 19 - Dazhu Laser is a leading domestic laser equipment manufacturer, providing essential laser processing solutions for the PCB industry [21] - The company’s laser equipment is crucial for high-end PCB production, meeting the precision requirements of advanced applications [21] - Dazhu Laser is benefiting from the growing demand for high-end PCB production driven by AI computing power [21] Group 20 - Zhongke Electric is a privately held company with expertise in electromagnetic equipment and new materials, providing automation and thermal treatment equipment for the PCB industry [22] - The company’s products enhance PCB stability and consistency, supporting the industry's shift towards automation and intelligence [22] - Zhongke Electric is expanding its presence in the electronic manufacturing equipment sector, providing reliable support for the PCB supply chain [22] Group 21 - Hezhu Intelligent is a provider of high-end forming equipment and automation solutions for the PCB industry [23] - The company’s equipment is critical for the production of high-layer and thick copper boards, directly impacting PCB reliability and flatness [23] - Hezhu Intelligent is positioned to benefit from the growing demand for PCB production equipment driven by automotive electronics and server applications [23] Group 22 - Huace Testing is a leading third-party testing enterprise, providing comprehensive reliability and environmental testing services for the PCB industry [24] - The company’s services are essential for ensuring PCB quality in communication, automotive, and server applications [24] - Huace Testing is maintaining a leading position in the PCB testing sector, supporting industry quality assurance amid increasing regulatory demands [24] Group 23 - Sichuan Jiuzhou is a significant player in the military and electronic information sectors, focusing on high-reliability PCBs for communication and industrial control applications [25] - The company’s PCB products are known for their high yield and reliability, supported by a military-grade quality control system [25] - Sichuan Jiuzhou is positioned to meet the growing demand for high-reliability PCBs driven by new infrastructure and specialized fields [25] Group 24 - Jin Xin Nuo specializes in RF communication and high-speed interconnect products, focusing on high-frequency PCBs for communication and automotive applications [26] - The company’s products are designed to meet the demands of 5G and AI computing, with low loss and high stability [26] - Jin Xin Nuo is leveraging its expertise in RF and PCB to maintain competitiveness in the communication interconnect supply chain [26] Group 25 - Rongda Photosensitive is a leading manufacturer of PCB photosensitive inks and wet process materials, essential for PCB production [27] - The company’s products directly impact PCB precision and reliability, covering the entire PCB production process [27] - Rongda Photosensitive is positioned to benefit from the growing demand for high-precision photosensitive inks in the PCB industry [27] Group 26 - Hongchang Electronics focuses on epoxy resins and electronic chemicals, providing core materials for PCB manufacturing [28] - The company’s high-purity epoxy resins meet the demands of high-frequency and high-temperature PCBs, supplying major domestic manufacturers [28] - Hongchang Electronics is expanding its production capacity for high-end electronic-grade resins, supporting the domestic material supply chain [28] Group 27 - Dongcai Technology is a key player in the new materials sector, focusing on functional materials for PCB applications [29] - The company’s products are designed to meet the high-performance requirements of modern PCBs, supporting the domestic supply chain [29] - Dongcai Technology is leveraging its technical and production advantages to expand its presence in the PCB materials market [29]

Group 1 - The CPO concept stocks in the A-share market have collectively strengthened, with notable gains from Tianfu Communication and Dekeli, both rising over 14% [1] - Other companies such as Juguang Technology and Hengtong Optic-Electric also saw significant increases, with some stocks reaching the daily limit of 10% [1] - The overall market sentiment appears positive, as indicated by the strong performance of multiple stocks in the sector [1] Group 2 - Tianfu Communication (300394) increased by 14.32%, with a total market capitalization of 276.9 billion and a year-to-date increase of 75.44% [2] - Dekeli (688205) rose by 14.13%, with a market cap of 28.9 billion and a year-to-date increase of 32.75% [2] - Juguang Technology (688167) saw a rise of 13.28%, with a market cap of 35.9 billion and a remarkable year-to-date increase of 128.43% [2]

Group 1 - The rare earth permanent magnet index experienced a strong surge, with a daily increase of 3% [1] - Component stocks showed impressive performance, with Tiantong Co., Ltd. hitting the daily limit, and other companies like Placo New Materials, Zhong Rare Metals, China Nonferrous Metal Industry, and Shengxin Lithium Energy seeing significant gains of 9.20%, 7.77%, 5.03%, and 4.60% respectively [1]

Group 1 - PCB concept stocks continue to rise, with companies such as Zhongcai Technology, Jiangnan New Materials, International Composites, Honghe Technology, China Jushi, and Tongguan Copper Foil reaching new highs during trading [1] - Shandong Glass Fiber and Tiantong Co., Ltd. hit the daily limit, while Mingyang Circuit and Delong Laser increased by over 10% [1] - Other companies like Yihau New Materials, Feilihua, and Shenzhen South Circuit also experienced gains [1]

最近业绩情况 经济观察网 根据公开信息和市场数据，天通股份（600330）（代码：600330）在2026年2月13日股价下 跌7.67%，收盘价为16.62元，当日电子化学品Ⅱ板块下跌0.98%，光伏概念板块下跌1.34%。此次股价表 现主要受以下因素影响： 股价情况 股价在2月10日创出阶段新高18.65元后，2月13日开盘即低开低走，收盘价16.62元跌破5日均线（17.20 元），但仍高于20日均线（14.57元）。KDJ指标中J值为61.71，处于相对高位，MACD柱状线为0.531， 显示短期调整压力。当日振幅10.00%，换手率11.46%，成交金额24.08亿元，量比0.85，成交活跃度较 前一日下降。 截至2月13日，公司市盈率（TTM）为939.11倍，远高于行业平均水平。机构综合目标价12.37元，较当 前价存在折价，反映市场对业绩承压下的估值修正预期。 综上，天通股份2月13日的股价表现是技术面回调、业绩预亏、资金分歧及行业基本面共同作用的结 果。投资者可关注公司压电晶体业务进展及2025年年报披露情况。 公司于2026年1月20日发布2025年业绩预亏公告，预计归母净利润为-1.2亿 ...

Group 1 - The core point of the news is that Tiantong Co., Ltd. experienced a stock price decline of 5.11%, trading at 17.08 yuan per share, with a total market capitalization of 21.067 billion yuan as of the report date [1] - Tiantong Co., Ltd. is primarily engaged in the research, manufacturing, and sales of electronic materials, which account for 86.57% of its main business revenue, while specialized equipment manufacturing and installation services contribute 9.38%, and other material sales account for 4.05% [1] - The company is located in Haining Economic Development Zone, Zhejiang Province, and was established on February 10, 1999, with its stock listed on January 18, 2001 [1] Group 2 - From the perspective of major circulating shareholders, the Southern Fund's Southern CSI 1000 ETF (512100) reduced its holdings by 113,700 shares in the third quarter, now holding 11.2785 million shares, which represents 0.91% of the circulating shares [2] - The Southern CSI 1000 ETF has a current scale of 78.996 billion yuan and has achieved a year-to-date return of 9.47%, ranking 1524 out of 5569 in its category [2] - The fund manager, Cui Lei, has been in position for 7 years and 100 days, with the best fund return during this period being 251.88% and the worst being -15.93% [2]