Group 1 - The company, Taicheng Technology (300570.SZ), has recently indicated that its products, including flexible optical boards, ultra-small connectors, and polarizing connectors, can be applied in the CPO wiring field [1] - The company is involved in the research and trial production of CPO solutions with several foreign manufacturers [1] - The mass application of CPO solutions and the timeline for such applications primarily depend on the choices made by switch manufacturers [1]

格隆汇8月21日丨太辰光(300570.SZ)于近期投资者关系活动表示，从去年起，公司大幅扩充了MT插芯 产能。公司具备稀缺的线切割设备和先进的检测工艺，所产单模低损MT插芯在质量上具备较强竞争 力。 ...

太辰光：美国加征进口关税对于公司影响不大，公司与主要客户的结算模式为FOB模式。 ...

Core Viewpoint - The company indicated that the high gross margin in Q1 2025 was influenced by product mix and is not expected to be a norm [1] Summary by Categories Financial Performance - The gross margin in Q2 experienced a decline compared to Q1 due to factors such as production line expansion [1] - The company's gross margin has been maintained at slightly above 30% in recent years, and there is confidence in sustaining this level in the future [1]

Group 1 - The company, Taicheng Light (300570.SZ), recently stated that its main products include passive optical devices, active optical devices, and optical sensing products [1] - Over 90% of the company's revenue comes from passive optical device products [1]

昨日基金共对17家公司进行调研，扎堆调研冰轮环境、山金国际、太辰光等。 证券时报·数据宝统计，8月20日共18家公司被机构调研，按调研机构类型看，基金参与17家公司的调研 活动，其中，10家以上基金扎堆调研公司共7家。冰轮环境最受关注，参与调研的基金达29家；山金国 际、太辰光等分别获27家、22家基金集体调研。 基金参与调研的公司中，按所属板块统计，深市主板公司有7家，创业板公司有9家，科创板公司有1 家。所属行业来看，基金调研的公司共涉及9个行业，所属通信、有色金属等行业个股最多，均有3只个 股上榜。 从基金调研公司的A股总市值统计，总市值在500亿元以上的共有2家，其中总市值超千亿元的有牧原股 份等，总市值不足100亿元的有6家，分别是速达股份、骏鼎达、长海股份等。 业绩方面，基金调研公司中，15家公司已经公布了半年报，净利润同比增幅最高的是牧原股份、南极 光，净利润增长幅度为1169.77%、982.43%。公布上半年业绩预告的共有1家，业绩预告类型来看，预 增有1只。以净利润增幅中值来看，净利润增幅最高的是广电计量，预计净利润中值为9750.00万元，同 比增幅为22.34%。（数据宝） 8月20日 ...

Group 1: Business Structure and Financial Performance - The company's main products are passive optical devices, active optical devices, and optical sensing products, with passive optical devices accounting for over 90% of revenue [2][4] - The gross margin for Q1 2025 was high due to product structure, but it is not expected to be a norm; Q2 gross margin decreased compared to Q1 due to production line expansion [3][4] - The company has maintained a gross margin of around 30% in recent years and is confident in sustaining this level in the future [3] Group 2: Capacity and Production - The company is expanding capacity significantly by renting new factories domestically and utilizing a production base in Vietnam [4] - The capacity changes disclosed in the semi-annual report do not reflect the true situation due to the variety of products involved [4] Group 3: Market and Trade Impact - The impact of U.S. tariffs on the company is minimal, as the settlement model with major clients is based on FOB, allowing for effective communication and compliance to mitigate tariff effects [5] - The company is optimistic about future development, especially in the context of AI-driven global computing demand [6] Group 4: Research and Development - The company has significantly expanded MT connector capacity and possesses advanced cutting and testing technology, enhancing the competitiveness of its single-mode low-loss MT connectors [7] - Ongoing R&D efforts focus on CPO-related products, including flexible boards and high-core-count connectors, maintaining a leading position in the flexible board sector [8][10] - The company is developing new products such as hollow-core fibers and V-groove products, targeting market-leading technologies and customer needs [11] Group 5: Customer Relations and Market Strategy - The company has a high dependency on its largest customer but maintains a strong supply relationship, aiming to diversify its customer base and product applications [17] - The company emphasizes the use of capital to accelerate development and plans to disclose relevant matters in accordance with regulatory requirements [18] Group 6: Employee Incentives - The company adheres to a principle of shared benefits and plans to continue incentivizing employees who contribute significantly to its success [18]

Group 1 - The core point of the news is that Zhang Yinghua, a director of Taicheng Light, reduced her shareholding by 3,500 shares at an average price of 132.00 yuan, resulting in a transaction amount of 462,000 yuan, leaving her with 8.6185 million shares [1][2]. - Taicheng Light's main business includes research, design, production, sales, and technical consulting of optoelectronic devices and related equipment, as well as domestic trade and import-export business [1]. - As of June 30, 2025, Taicheng Light's revenue from optoelectronic products was 812 million yuan, accounting for 98.02% of total revenue, while other income was 14.9962 million yuan (1.81%) and optical sensing product revenue was 1.4411 million yuan (0.17%) [1]. Group 2 - As of the latest closing, Taicheng Light's total market capitalization is 28.255 billion yuan [3].

截至8月19日收盘，铜缆高速连接概念上涨1.84%，位居概念板块涨幅第7，板块内，31股上涨，兆龙互 连、汇绿生态、金田股份等涨幅居前，分别上涨11.46%、8.54%、7.02%。跌幅居前的有鼎通科技、胜 蓝股份、新亚电子等，分别下跌6.15%、5.19%、4.07%。 今日涨跌幅居前的概念板块 | 概念 | 今日涨跌幅（%） | 概念 | 今日涨跌幅（%） | | --- | --- | --- | --- | | 减速器 | 2.62 | 兵装重组概念 | -1.86 | | 动物疫苗 | 2.47 | PEEK材料 | -1.35 | | 禽流感 | 2.45 | 中船系 | -1.32 | | F5G概念 | 1.88 | 互联网保险 | -1.11 | | 华为海思概念股 | 1.87 | 中芯国际概念 | -0.82 | | 乳业 | 1.85 | 光刻胶 | -0.74 | | 铜缆高速连接 | 1.84 | 国家大基金持股 | -0.70 | | 智能音箱 | 1.82 | 脑机接口 | -0.64 | | 华为欧拉 | 1.82 | BC电池 | -0.63 | | 共封装光学(CPO) ...

Group 1 - As of August 19, the F5G concept index rose by 1.88%, ranking fourth among concept sectors, with 27 stocks increasing in value, including Cambridge Technology which hit the daily limit, and notable gainers such as Dongtian Micro (up 11.75%), Dekoli (up 8.55%), and Gongjin Co. (up 6.70%) [1][2] - The F5G concept sector saw a net inflow of 1.052 billion yuan from main funds today, with 18 stocks receiving net inflows, and 5 stocks exceeding 100 million yuan in net inflow. The top net inflow was from Zhongji Xuchuang at 528 million yuan, followed by Hengtong Optic-Electric (294 million yuan), Yihua Co. (238 million yuan), and Taicheng Light (235 million yuan) [2][3] - The stocks with the highest net inflow ratios included Yihua Co. (15.91%), Shanghai Port Group (14.76%), and Chuling Information (13.58%) [3] Group 2 - The top performers in the F5G concept included Zhongji Xuchuang (up 5.96%), Hengtong Optic-Electric (up 3.55%), and Yihua Co. (up 5.60%), with significant trading volumes and turnover rates [3][4] - Notable declines were observed in stocks such as TeFa Information (down 5.57%), XinYa Electronics (down 4.07%), and Sichuan Jiuzhou (down 1.60%), indicating a mixed performance within the sector [5]