Market Performance - On September 5, the electronic chemicals sector rose by 4.76%, with Laird Technology leading the gains [1] - The Shanghai Composite Index closed at 3812.51, up 1.24%, while the Shenzhen Component Index closed at 12590.56, up 3.89% [1] Individual Stock Performance - Laird Technology (688683) closed at 36.50, up 11.21% with a trading volume of 47,100 shares and a turnover of 164 million yuan [1] - Fivotech (688371) closed at 25.21, up 10.23% with a trading volume of 54,400 shares and a turnover of 132 million yuan [1] - Tiantong Co. (600330) closed at 12.10, up 10.00% with a trading volume of 3.1078 million shares and a turnover of 3.563 billion yuan [1] - Other notable performers include Guanghua Technology (002741) up 9.99%, Jingrui Electric Materials (300655) up 7.76%, and Jianghuai Micro (603078) up 5.45% [1] Capital Flow Analysis - The electronic chemicals sector saw a net inflow of 447 million yuan from institutional investors, while retail investors contributed a net inflow of 185 million yuan [1] - Notably, the sector experienced a net outflow of 632 million yuan from speculative funds [1] Detailed Capital Flow for Selected Stocks - Tiantong Co. (600330) had a net inflow of 191 million yuan from institutional investors, but a net outflow of 82.38 million yuan from speculative funds [2] - Guanghua Technology (002741) saw a net inflow of 188 million yuan from institutional investors, with a significant net outflow of 110 million yuan from speculative funds [2] - Jingrui Electric Materials (300655) had a net inflow of 137 million yuan from institutional investors, while experiencing a net outflow of 42.11 million yuan from speculative funds [2]

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。 天通控股股份有限公司 股票交易异常波动公告 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 2025 年 9 月 3 日、9 月 4 日、9 月 5 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。 ●经公司自查，并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。 ●敬请广大投资者理性决策，注意投资风险。 一、股票交易异常波动的具体情况 证券代码：600330 证券简称：天通股份 公告编号：2025-049 （四）其他股价敏感信息 经核实，公司董事、监事、高级管理人员、控股股东及其一致行动人在本次 股票交易异常波动期间不存在买卖公司股票的情况。除公司已披露的事项外，未 发现其他可能对公司股价产生较大影响的重大事项。 公司股票交易于 2025 年 9 月 3 日、9 月 4 日、9 月 5 日连续三个交易日内日 收盘价格涨幅 ...

（文章来源：每日经济新闻） 每经AI快讯，9月5日，天通股份晚间公告，公司股票于2025年9月3日至9月5日连续三个交易日内日收 盘价格涨幅累计超过20%，属于股票交易异常波动情形。经自查并书面征询控股股东和实际控制人，除 已披露事项外，不存在其他应披露而未披露的重大信息。公司生产经营正常，未发生重大变化。 ...

Core Viewpoint - The stock of Tiantong Co., Ltd. experienced an abnormal fluctuation, with a cumulative increase of over 20% in closing prices over three consecutive trading days from September 3 to September 5, 2025 [1] Company Information - Tiantong Co., Ltd. confirmed that there are no undisclosed significant information apart from what has already been disclosed [1] - The company's production and operations are normal, with no significant changes reported [1] Shareholding Structure - The controlling shareholder, Tiantong High-tech Group Co., Ltd., holds 130 million shares, accounting for 10.50% of the total share capital, with 90.75 million shares pledged, representing 70.05% of its holdings and 7.36% of the total share capital [1] - Tiantong High-tech Group Co., Ltd. and its concerted parties collectively hold 233 million shares, which is 18.90% of the total share capital, with 123 million shares pledged, making up 52.84% of their combined holdings and 9.98% of the total share capital [1]

Core Viewpoint - The photovoltaic sector is experiencing a vibrant market trend, with several companies such as Tongrun Equipment, Xizi Energy Saving, Tiantong Co., Shanghai Electric, and Luxiao Technology leading the gains in stock prices. Company Summaries - **Tongrun Equipment (002150.SZ)**: Achieved a "3 consecutive limit up" with a latest price of 17.42 yuan, reflecting a 9.97% increase. The company focuses on photovoltaic inverters and energy storage systems, with its subsidiary, Chint Power, being a market leader in North America for several years [1]. - **Xizi Energy Saving (002534.SZ)**: Recorded its first limit up with a latest price of 14.07 yuan, up by 10.01%. The company engages in solar photovoltaic project contracting and has investments in cutting-edge technologies like high-efficiency crystalline silicon and perovskite photovoltaics [2]. - **Tiantong Co. (600330.SS)**: Closed at a limit up price of 12.10 yuan, marking a 10.00% increase. The company is a key provider of monocrystalline furnace technology in the photovoltaic sector, supporting the production of solar monocrystalline silicon [3]. - **ST Mubang (603398.SS)**: Achieved a limit up with a latest price of 6.24 yuan, reflecting a 5.05% increase. The company’s subsidiary focuses on solar monocrystalline silicon wafers, with a current production capacity of 6GW, which is expected to increase with rising demand [4]. - **Shanghai Electric (600021.SS)**: Also reached a limit up with a latest price of 20.77 yuan, up by 10.01%. The company is a major renewable energy supplier in Shanghai, with a total installed capacity of 22.4242 million kilowatts, including 5.09 million kilowatts from photovoltaic sources [5]. - **Luxiao Technology (002617.SZ)**: Closed at a limit up price of 9.09 yuan, reflecting a 10.05% increase. The company’s subsidiary focuses on the investment, construction, and operation of photovoltaic power stations, with a total installed capacity of 827,100 kilowatts [6].

Core Viewpoint - The A-share market has seen a strong performance in silicon carbide concept stocks, indicating growing investor interest and potential market momentum [1] Group 1: Stock Performance - Tianyue Advanced reached a daily limit increase of 20% [1] - Jing Sheng Machinery surged over 11% [1] - Luxiao Technology and Tiantong Co. both hit a daily limit increase of 10% [1] - Tianfu Energy increased by over 8% [1] - Haixi Communications, Yintang Zhikong, Sanan Optoelectronics, and Dongni Electronics all rose by over 6% [1] - Yinhai Microelectronics saw an increase of nearly 6% [1]

Group 1 - The CPO concept stocks in the A-share market experienced significant gains, with notable stocks including Tiantong Co., Ltd. and Kechuan Technology hitting the daily limit up [1] - Other companies such as Dekeli and Founder Technology saw increases of over 8%, while Juguang Technology and Huilv Ecology rose by more than 7% [1] - Stocks like Xinyi Sheng and Woge Optoelectronics increased by over 6%, and several others including Zhongji Xuchuang, Zhongtian Technology, Guangku Technology, and Changfei Optical Fiber rose by over 5% [1] Group 2 - Tiantong Co., Ltd. (code: 600330) had a price increase of 10.00%, with a total market value of 14.9 billion and a year-to-date increase of 70.93% [2] - Kechuan Technology (code: 603052) rose by 9.99%, with a market value of 6.206 billion and a year-to-date increase of 30.11% [2] - Dekeli (code: 688205) increased by 8.81%, with a market value of 16.4 billion and a year-to-date increase of 48.90% [2] - Founder Technology (code: 600601) saw an 8.45% increase, with a market value of 40.6 billion and a year-to-date increase of 116.40% [2] - Juguang Technology (code: 688167) rose by 7.87%, with a market value of 10.9 billion and a year-to-date increase of 90.50% [2] - Huilv Ecology (code: 001267) increased by 7.02%, with a market value of 11.2 billion and a year-to-date increase of 88.69% [2] - Xinyi Sheng (code: 300502) rose by 6.92%, with a market value of 331.6 billion and a year-to-date increase of 305.83% [2] - Woge Optoelectronics (code: 603773) increased by 6.10%, with a market value of 8.429 billion and a year-to-date increase of 48.77% [2] - Zhongji Xuchuang (code: 300308) rose by 5.66%, with a market value of 433.4 billion and a year-to-date increase of 217.06% [2] - Zhongtian Technology (code: 600522) increased by 5.37%, with a market value of 55.6 billion and a year-to-date increase of 16.19% [2] - Guangku Technology (code: 300620) rose by 5.04%, with a market value of 24.5 billion and a year-to-date increase of 102.60% [2] - Changfei Optical Fiber (code: 601869) increased by 5.00%, with a market value of 68.4 billion and a year-to-date increase of 203.37% [2]

Core Logic of Active Optical Communication Sector - The demand for optical communication is driven by the growth of digital economy and increasing computing power needs, as traditional communication architectures struggle to meet bandwidth and latency requirements [2] - The Ministry of Industry and Information Technology has been promoting the self-controllability of the electronic information manufacturing industry, supporting technological upgrades and domestic substitution in core communication equipment [2] - Domestic R&D in optical communication continues to advance, with breakthroughs in materials and technologies that enhance performance and competitiveness in the industry [2] Performance and Analysis of Leading Stocks - Zhongji Xuchuang (300308) holds a strong position in the global optical module market with a market share of approximately 25%-30%, and has seen a significant increase in North American orders [3] - Huagong Technology (000988) is one of the early adopters of 800G silicon optical modules in China, with a recent surge in stock price due to positive market expectations following technological advancements [3] - Yangtze Optical Fibre and Cable (601869) leads in the global optical fibre preform market, reporting a 28% year-on-year increase in net profit, benefiting from accelerated domestic substitution [4] - Hengtong Optic-Electric (600487) has a comprehensive layout in optical communication, with a 20.4% year-on-year revenue growth in the first half of 2024, driven by new business opportunities [4] Characteristics of Stocks with Significant Price Movements - Tengjing Technology (688195) saw a 20% increase in stock price, driven by its precision optical components used in cutting-edge fields, with overseas revenue rising to 45% [5] - Qingshan Paper (600103) opened with a limit-up due to increased demand for optical communication materials, establishing supply relationships with leading optical fibre companies [5] - Tiantong Co., Ltd. (600330) experienced a strong price increase, with high yield rates in its sapphire substrates, directly supplying to major optical module companies [6]

Group 1 - The CPO concept stocks in the A-share market experienced significant gains, with notable performances from Tian Tong Co., Ltd. and Ke Chuan Technology, both reaching the daily limit up [1] - Other companies such as De Ke Li and Fang Zheng Technology saw increases of over 8%, while Ju Guang Technology and Hui Lv Ecology rose by more than 7% [1] - The overall trend indicates a strong bullish sentiment in the CPO sector, supported by the formation of MACD golden cross signals [1] Group 2 - Tian Tong Co., Ltd. (code 600330) achieved a 10% increase, with a total market capitalization of 14.9 billion and a year-to-date gain of 70.93% [2] - Ke Chuan Technology (code 603052) rose by 9.99%, with a market cap of 6.206 billion and a year-to-date increase of 30.11% [2] - De Ke Li (code 688205) saw an 8.81% rise, with a market cap of 16.4 billion and a year-to-date gain of 48.90% [2] - Fang Zheng Technology (code 600601) increased by 8.45%, with a market cap of 40.6 billion and a year-to-date gain of 116.40% [2] - Ju Guang Technology (code 688167) rose by 7.87%, with a market cap of 10.9 billion and a year-to-date increase of 90.50% [2] - Hui Lv Ecology (code 001267) increased by 7.02%, with a market cap of 11.2 billion and a year-to-date gain of 88.69% [2] - New Yi Sheng (code 300502) rose by 6.92%, with a market cap of 331.6 billion and a year-to-date increase of 305.83% [2] - Wo Ge Guang Dian (code 603773) increased by 6.10%, with a market cap of 8.429 billion and a year-to-date gain of 48.77% [2] - Zhong Ji Xiang Chuang (code 300308) rose by 5.66%, with a market cap of 433.4 billion and a year-to-date increase of 217.06% [2] - Zhong Tian Technology (code 600522) increased by 5.37%, with a market cap of 55.6 billion and a year-to-date gain of 16.19% [2] - Guang Ku Technology (code 300620) rose by 5.04%, with a market cap of 24.5 billion and a year-to-date increase of 102.60% [2] - Chang Fei Fiber (code 601869) increased by 5.00%, with a market cap of 68.4 billion and a year-to-date gain of 203.37% [2]

Core Viewpoint - Tian Tong Co., Ltd. (600330) experienced a stock price increase of 3.77% with a trading volume of 4.324 billion yuan and a turnover rate of 30.54% on the day of reporting [2]. Trading Activity - The stock was listed on the Shanghai Stock Exchange due to its turnover rate reaching 30.54%, with a net sell of 16.29 million yuan from the Shanghai-Hong Kong Stock Connect [2]. - The top five trading departments accounted for a total transaction volume of 750 million yuan, with a net buying amount of 5.78 million yuan [2]. - The Shanghai-Hong Kong Stock Connect was the third-largest buying department and the second-largest selling department, with buying and selling amounts of 70.68 million yuan and 86.96 million yuan, respectively [2]. Capital Flow - The stock saw a net inflow of 531 million yuan from major funds, with a significant inflow of 667 million yuan from large orders, while large orders saw a net outflow of 136 million yuan [2]. - Over the past five days, the net inflow of major funds totaled 1.03 billion yuan [2]. Financing and Margin Trading - As of September 3, the stock's margin trading balance was 867 million yuan, with a financing balance of 863 million yuan and a securities lending balance of 3.86 million yuan [2]. - Over the past five days, the financing balance increased by 168 million yuan, representing a growth of 24.26%, while the securities lending balance increased by 1.68 million yuan, a growth of 76.80% [2]. Financial Performance - In the first half of the year, the company reported a total revenue of 1.584 billion yuan, reflecting a year-on-year growth of 1.00%, while the net profit was 52.61 million yuan, showing a year-on-year decline of 33.29% [3].