Core Viewpoint - Jiangsu Diao Microelectronics Co., Ltd. is set to hold a Q3 2025 performance briefing on December 4, 2025, to discuss its operational results and financial status with investors [2][3]. Group 1: Meeting Details - The performance briefing will take place on December 4, 2025, from 16:00 to 17:00 [2][5]. - The meeting will be conducted in an interactive online format via the Shanghai Stock Exchange Roadshow Center [3][5]. - Investors can submit questions from November 27, 2025, to December 3, 2025, before 16:00 [2][4]. Group 2: Participation Information - Investors can participate in the briefing by logging into the Shanghai Stock Exchange Roadshow Center website [4][5]. - Questions can also be sent via the company's email address, stock@dioo.com, for discussion during the meeting [6]. - After the briefing, investors can access the meeting's main content and details through the Roadshow Center [6].

证券代码：688381 证券简称：帝奥微 公告编号：2025-066 江苏帝奥微电子股份有限公司 关于召开 2025 年第三季度业绩说明会的公告 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、准确性和完整性依法承担法律责任。 重要内容提示： 会议召开时间：2025 年 12 月 04 日 （星期四） 16:00-17:00 会议召开方式：上证路演中心网络互动 会 议 召 开 地 点 ： 上 海 证 券 交 易 所 上 证 路 演 中 心 （ 网 址 ： https://roadshow.sseinfo.com/） 投资者可于 2025 年 11 月 27 日 （星期四） 至 12 月 03 日 （星期三） 16:00 前登录上证路演中心网站首页点击"提问预征集"栏目或通过公司邮箱 stock@dioo.com 进行提问。公司将在说明会上对投资者普遍关注的问题进行回 答。 江苏帝奥微电子股份有限公司（以下简称"公司"）已于 2025 年 10 月 31 日发布公司 2025 年第三季度报告，为便于广大投资者更全面深入地了解公司 2025 年第三季度经营成果 ...

Core Insights - The stock of Jiangsu Diao Microelectronics Co., Ltd. increased by 5.05% to 23.90 CNY per share, with a trading volume of 46.34 million CNY and a turnover rate of 1.03%, resulting in a total market capitalization of 5.915 billion CNY [1] Company Overview - Jiangsu Diao Microelectronics Co., Ltd. was established on February 5, 2010, and went public on August 23, 2022. The company is located in the Minhang District of Shanghai and specializes in the research, design, and sales of high-performance analog chips [1] - The main business revenue composition is as follows: Power Management accounts for 51.58%, while Signal Chain contributes 48.42% [1] Fund Holdings - Xinyin Fund has a significant holding in Diao Micro, with its fund "Xinyin Research Selected Stocks A" (008537) owning 56,500 shares, representing 2.63% of the fund's net value, making it the sixth-largest holding [2] - The fund was established on July 29, 2020, and has a current size of 50.61 million CNY. Year-to-date returns are 20.48%, ranking 2132 out of 4206 in its category, while the one-year return is 23.63%, ranking 1702 out of 3983 [2] - The fund manager, Qiao Huaguo, has been in the position for 2 years and 18 days, with total assets under management of 335 million CNY. The best return during his tenure is 48.01%, while the worst is -4.24% [2]

Group 1 - The core viewpoint of the news is that DiAo Microelectronics has experienced fluctuations in stock price and trading activity, with a notable increase in stock price year-to-date but a decline in recent trading days [1][2] - As of November 24, DiAo Microelectronics' stock price is 22.59 CNY per share, with a market capitalization of 5.591 billion CNY and a trading volume of 23.05 million CNY [1] - The company has seen a net outflow of 988,200 CNY in principal funds, with significant selling activity compared to buying [1] Group 2 - DiAo Microelectronics operates in the semiconductor industry, specifically in analog chip design, and is involved in sectors such as automotive chips, sensors, and AI mobile phones [2] - For the period from January to September 2025, the company reported revenue of 457 million CNY, reflecting a year-on-year growth of 11.41%, while the net profit attributable to shareholders was -24.28 million CNY, a decrease of 232.46% [2] - The company has distributed a total of 153 million CNY in dividends since its A-share listing [3]

Group 1 - The company has approved a share repurchase plan using self-owned funds and special loans, with a budget of 100 million to 200 million RMB, and a maximum repurchase price of 41.68 RMB per share, primarily for employee stock ownership or incentive plans [1] - As of November 21, 2025, the company has repurchased a total of 7,600,000 shares, accounting for 3.07% of the total share capital of 247,500,000 shares, with a total expenditure of approximately 160 million RMB [2] - The company will adhere to relevant regulations and make repurchase decisions based on market conditions, ensuring timely information disclosure regarding the progress of the share repurchase [3]

Group 1 - The company DiAo Micro (SH 688381) announced a share buyback of 7.6 million shares, representing 3.07% of its total share capital of approximately 248 million shares, with a total expenditure of around 160 million RMB [1] - The highest and lowest prices for the repurchased shares were 29.34 RMB and 16.96 RMB per share, respectively [1] - For the year 2024, the company's revenue composition is entirely from integrated circuits, accounting for 100% [1] Group 2 - The current market capitalization of DiAo Micro is 5.5 billion RMB [2]

| 回购方案首次披露日 | 2024/12/4 | | --- | --- | | 回购方案实施期限 | 待董事会审议通过后 个月 12 | | 预计回购金额 | 10,000万元~20,000万元 | | 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 | 760.00万股 | | 累计已回购股数占总股本比例 | 3.07% | | 累计已回购金额 | 16,001.89万元 | | 实际回购价格区间 | 16.96元/股~29.34元/股 | 证券代码：688381 证券简称：帝奥微 公告编号：2025-065 江苏帝奥微电子股份有限公司 关于以集中竞价交易方式回购公司股份比例达到总股 本 3%暨回购进展公告 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： 截至 2025 年 11 月 21 日，公司通过集中竞价交易方式已累计回购股份 7,600,000 股，占公司总股本 247,500,000 股的比例为 3 ...

Group 1 - The company Jiangsu Diao Microelectronics Co., Ltd. plans to acquire 100% equity of Rongpai Semiconductor (Shanghai) Co., Ltd. through a combination of issuing shares and cash payment, while also raising supporting funds [1] - The transaction is not expected to constitute a major asset restructuring as defined by the relevant regulations, nor will it lead to a change in the actual controller of the company [1] - The company's stock was suspended from trading on September 29, 2025, and the suspension is expected to last no more than 10 trading days [2] Group 2 - On October 20, 2025, the company held its 18th meeting of the second board of directors, where the relevant proposals for the transaction were approved [2] - The company is actively communicating with all parties involved in the transaction and is progressing with the necessary audits and evaluations [3] - The company will fulfill its information disclosure obligations in accordance with relevant laws and regulations as the transaction progresses [3]

Core Points - The company Diao Microelectronics (688381) reported a closing price of 23.26 yuan on November 20, 2025, down 1.86% from the previous trading day, with a total market capitalization of 5.757 billion yuan [1] - The company announced plans to acquire 100% equity of Rongpai Semiconductor (Shanghai) Co., Ltd. through a combination of issuing shares and cash payment, along with raising supporting funds [1] - This transaction is not expected to constitute a major asset reorganization, related party transaction, or restructuring listing, and will not lead to a change in the actual controller of the company [1] - The company's stock was suspended from trading from September 29, 2025, and resumed on October 21, 2025, with ongoing audit and evaluation work [1] - The transaction is subject to approval uncertainties, and the company will disclose progress in a timely manner [1] Summary by Category Stock Performance - Closing price on November 20, 2025: 23.26 yuan, down 1.86% [1] - Opening price: 23.76 yuan, highest: 23.95 yuan, lowest: 23.25 yuan, trading volume: 52.7095 million yuan, turnover rate: 1.17% [1] Acquisition Details - Planned acquisition of 100% equity of Rongpai Semiconductor (Shanghai) Co., Ltd. [1] - Method of acquisition: issuance of shares and cash payment, along with raising supporting funds [1] - Expected not to constitute major asset reorganization or related party transaction [1] Regulatory Process - Stock suspension from September 29, 2025, to October 21, 2025 [1] - Ongoing audit and evaluation work as of the announcement date [1] - Future steps include board and shareholder meeting reviews, Shanghai Stock Exchange review, and China Securities Regulatory Commission registration [1] - Company will provide updates on the approval process [1]

Core Viewpoint - The company announced plans to acquire 100% equity of Rongpai Semiconductor (Shanghai) Co., Ltd. through a combination of share issuance and cash payment, while also raising supporting funds for the transaction [2] Group 1: Transaction Details - The transaction is expected not to constitute a major asset restructuring as defined by the "Measures for the Administration of Major Asset Restructuring of Listed Companies" [2] - The transaction does not involve related party transactions and will not lead to a change in the actual controller of the company [2] - The company is actively communicating with all parties involved in the transaction and is progressing with related work such as auditing and evaluation [2] Group 2: Compliance and Disclosure - The company will adhere to relevant laws, regulations, and normative documents regarding information disclosure as the transaction progresses [2]