智通财经APP讯，天通股份(600330.SH)发布风险提示性公告称，公司主营业务为电子材料及高端专用 装备的研发、制造和销售。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。近期，公司因商业航天概念、铌酸锂晶体领域 及CPO概念影响，受关注度较高。其中，公司主营业务未发生变化，公司不生产商业卫星;铌酸锂晶体 领域涉及公司"大尺寸射频压电晶圆项目"，该项目为公司募投项目，建设期将延期至2029年12月，截至 目前该项目尚未结项，且尚未形成稳定收入;公司主营业务未发生变化，公司不生产光模块产品。公司 特别提醒广大投资者注意热点概念炒作风险，理性判断、谨慎决策。 ...

Core Viewpoint - The stock of Tiantong Holdings Co., Ltd. experienced an abnormal trading fluctuation, with a cumulative closing price increase exceeding 20% over three consecutive trading days from September 3 to September 5, 2025 [1] Group 1: Stock Trading Abnormality - The company's stock price deviation was identified as exceeding 20% over three consecutive trading days, which is classified as an abnormal trading fluctuation according to the Shanghai Stock Exchange rules [1] - The company conducted a self-examination and confirmed that there are no undisclosed significant information affecting the stock price, aside from what has already been disclosed [1] Group 2: Business Operations - The main business of the company involves the research, development, manufacturing, and sales of electronic materials and high-end specialized equipment [1] - The company reported that its production and operational activities are normal, with no significant changes in its main business [1] Group 3: Major Events and Shareholder Information - The company confirmed that there are no major events affecting the stock price, such as significant asset restructuring, share issuance, or major business cooperation [2] - The controlling shareholder, Tiantong High-tech Group Co., Ltd., holds 70.05% of its shares, which accounts for 7.36% of the total share capital of the company [3] Group 4: Management and Disclosure - The board of directors confirmed that there are no undisclosed matters that should have been disclosed according to the relevant regulations of the Shanghai Stock Exchange [4] - The company has designated media for information disclosure, including China Securities Journal, Shanghai Securities Journal, Securities Times, and the Shanghai Stock Exchange website [3]