Core Viewpoint - Silicon carbide (SiC) is emerging as a new solution for chip heat dissipation, with Huawei recently announcing two patents related to SiC thermal management [2][6]. Group 1: Huawei's Patents - Huawei has filed two patents involving SiC for thermal management, aimed at enhancing the thermal conductivity of electronic devices [2]. - The first patent focuses on a thermal composition and its applications in electronic component cooling and chip packaging [2]. - The second patent pertains to a thermal absorbing composition for electronic components and circuit boards [2]. Group 2: Industry Trends - NVIDIA is reportedly switching the intermediate substrate material in its next-generation Rubin processors from silicon to SiC to improve heat dissipation, with large-scale adoption expected by 2027 [6]. - SiC has superior thermal conductivity, with a thermal conductivity of 500 W/mK, compared to silicon's 150 W/mK and ceramic substrates' 200-230 W/mK [7]. - The increasing power of AI chips, such as NVIDIA's GPUs, necessitates improved heat dissipation solutions, as the power of the H200 chip has risen from 700W to 1400W [7]. Group 3: Market Potential - The use of SiC intermediate layers can reduce GPU chip junction temperatures by 20-30°C and lower cooling costs by 30%, preventing performance throttling due to overheating [8]. - The market for SiC applications is expanding from power electronics to packaging and cooling solutions, creating new growth opportunities [9]. - A projection indicates that if NVIDIA's H100 chips were to switch to SiC intermediate layers, it would require approximately 76,190 substrates based on current production metrics [9]. Group 4: Stock Market Response - Following NVIDIA's entry into the SiC cooling sector, related stocks in the A-share market have seen significant increases, with companies like Lushou Technology and Tianyue Advanced rising over 30% since September [11]. - Companies such as Tianyue Advanced and Sanan Optoelectronics are actively pursuing innovations in SiC products for various applications, including power devices and thermal management [11][12]. - Financing data shows that several SiC-related stocks have received substantial investments, with Tongfu Microelectronics leading with an increase of 7.01 billion yuan in financing [14].

Company Overview - Tian Tong Holdings Co., Ltd. is located in Haining Economic Development Zone, Zhejiang Province, established on February 10, 1999, and listed on January 18, 2001 [2] - The company's main business includes the research, manufacturing, and sales of electronic materials (including magnetic materials, sapphire, piezoelectric crystals) and high-end equipment (including specialized equipment for crystal materials, powder materials, and semiconductor displays) [2] - The revenue composition of the main business is as follows: 86.57% from electronic materials sales, 9.38% from specialized equipment manufacturing and installation services, and 4.05% from material sales and others [2] Financial Performance - For the first half of 2025, Tian Tong Holdings achieved operating revenue of 1.584 billion yuan, a year-on-year increase of 1.00%, while the net profit attributable to shareholders decreased by 33.29% to 52.6073 million yuan [2] - The company has cumulatively distributed 623 million yuan since its A-share listing, with 186 million yuan distributed in the last three years [3] Stock Performance - As of September 12, Tian Tong Holdings' stock price was 10.69 yuan per share, with a market capitalization of 13.185 billion yuan [1] - The stock has increased by 51.03% year-to-date, but has seen a decline of 11.65% over the last five trading days [1] - The company has appeared on the trading leaderboard three times this year, with the most recent instance on September 8, where it recorded a net buy of -156 million yuan [1] Shareholder Information - As of June 30, 2025, the number of shareholders was 89,200, a decrease of 1.94% from the previous period, while the average circulating shares per person increased by 1.98% to 13,826 shares [2] - Notable institutional shareholders include Southern CSI 1000 ETF, holding 11.3922 million shares, and Hong Kong Central Clearing Limited, holding 10.5940 million shares, both of which increased their holdings compared to the previous period [3]

Meeting Overview - The first extraordinary general meeting of shareholders was held on September 10, 2025, at the company's conference room in Haining, Zhejiang Province [1] - The meeting was chaired by the chairman of the board, Mr. Zheng Xiaobin, and utilized a combination of on-site and online voting methods, complying with relevant laws and regulations [1] - A total of 6 out of 7 directors and 2 out of 3 supervisors attended the meeting, with the company secretary present as well [1] Resolutions Passed - The following proposals were approved during the meeting: - Revision of the Articles of Association [2] - Revision of the Rules of Procedure for Shareholders' Meetings [2] - Revision of the Rules of Procedure for Board Meetings [3] - Revision of the Independent Director Work System [3] - Revision of the Related Party Transaction Decision-Making System [3] - Revision of the External Guarantee Management Measures [3] - Revision of the Management Measures for Raised Funds [3] - Revision of the External Investment Management System [3] - Revision of the Asset Write-off Management System [3] - Approval of the Remuneration Management System for Directors and Senior Management [4] - Approval of the Shareholder Return Plan for the Next Three Years (2025-2027) [4] Voting and Legal Compliance - The special resolution regarding the revision of the Articles of Association was passed with more than two-thirds of the valid votes from attending shareholders [4] - All other resolutions were passed with more than half of the valid votes from attending shareholders [4] - The meeting was witnessed by lawyers from Guohao Law Firm (Hangzhou), confirming that the meeting's procedures and resolutions complied with legal requirements [5] Board Changes - Mr. Ye Shijin submitted his resignation from the board due to work adjustments, effective immediately upon delivery of the resignation [8] - The company held an employee representative meeting on September 10, 2025, where Mr. Shu Jiao Jing was elected as the employee representative director, with his term lasting until the end of the current board's term [8][9]

Group 1 - The company announced the resignation of director Ye Shijin due to work adjustment reasons [2] - Ye Shijin submitted a written resignation report to the board of directors [2] - The resignation pertains to the company's ninth board of directors [2]

Group 1 - The company announced the convening of a staff representative meeting on September 10, 2025, to elect a new employee director [1] - Mr. Shu Jiao Jing was elected as the employee director of the company's ninth board of directors [1]

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"）董事会收到董事叶时金先生递 交的书面辞职报告。叶时金先生因工作调整原因，申请辞去公司第九届董事会董 事职务。 一、董事离任情况 证券代码：600330 证券简称：天通股份 公告编号：2025-051 天通控股股份有限公司 关于公司董事离任暨选举职工董事的公告 二、选举职工代表董事情况 根据《中华人民共和国公司法》《上市公司章程指引》等有关规定，公司于 2025 年 9 月 10 日下午召开职工代表大会，经全体与会职工代表表决，同意选 举舒蛟靖先生（简历附后）担任公司第九届董事会职工董事，任期自公司职工代 表大会审议通过之日起至第九届董事会任期届满之日止。 舒蛟靖先生当选公司职工董事后，公司第九届董事会中兼任公司高级管理人 员以及由职工代表担任的董事人数总计未超过公司董事总数的二分之一，符合相 关法律法规的要求。 特此公告。 天通控股股份有限公司董事会 2025 年 9 月 11 日 (一) 提前离任的基本情况 | 姓名 | ...

天通股份 2025 年第一次临时股东大会法律意见书 国浩律师（杭州）事务所 国浩律师（杭州）事务所 关于天通控股股份有限公司 2025 年第一次临时股东大会之 法 律 意 见 书 致：天通控股股份有限公司（"贵公司"） 国浩律师（杭州）事务所（以下简称"本所"）接受贵公司的委托，指派本 所律师出席贵公司于 2025 年 9 月 10 日在浙江省海宁市经济开发区双联路 129 号公司会议室召开的 2025 年第一次临时股东大会（以下简称"本次股东大会"）， 并依据《中华人民共和国公司法》（以下简称"《公司法》"）、《上市公司股东会规 则》（以下简称"《股东会规则》"）等法律、行政法规、规范性文件及《天通控股 股份有限公司章程》（以下简称"《公司章程》"）的规定，出具本法律意见书。 为出具本法律意见书，本所律师对贵公司本次股东大会所涉及的有关事项进 行了审查，查阅了本所律师认为出具本法律意见书所必须查阅的文件，并对有关 问题进行了必要的核查和验证。 贵公司已向本所承诺：贵公司向本所律师所提供的文件和所作陈述及说明是 完整的、真实的和有效的，有关原件及其上面的签字和印章是真实的，且一切足 以影响本法律意见书的事实和 ...

证券代码：600330 证券简称：天通股份 公告编号：2025-050 天通控股股份有限公司 2025年第一次临时股东大会决议公告 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： 本次会议是否有否决议案：无 一、 会议召开和出席情况 (一)股东大会召开的时间：2025 年 9 月 10 日 (二)股东大会召开的地点：浙江省海宁市经济开发区双联路 129 号公司会议室 (三)出席会议的普通股股东和恢复表决权的优先股股东及其持有股份情况： | 1、出席会议的股东和代理人人数 | 814 | | --- | --- | | 2、出席会议的股东所持有表决权的股份总数（股） | 245,878,694 | | 3、出席会议的股东所持有表决权股份数占公司有表决权股 | | | 份总数的比例（%） | 20.2050 | 表决情况： | 股东类型 | 同意 | | 反对 | | 弃权 | | | --- | --- | --- | --- | --- | --- | --- | | | 票数 | 比例（%） | 票数 | 比 ...

Market Overview - The electronic chemicals sector experienced a decline of 2.16% on September 9, with Tian Tong Co. leading the drop [1] - The Shanghai Composite Index closed at 3807.29, down 0.51%, while the Shenzhen Component Index closed at 12510.6, down 1.23% [1] Stock Performance - Notable gainers in the electronic chemicals sector included: - Siquan New Materials (301489) with a closing price of 191.05, up 4.32% [1] - Jingrui Electric Materials (300655) at 14.15, up 3.51% [1] - Guanghua Technology (002741) at 23.60, up 2.61% [1] - Major decliners included: - Tian Tong Co. (600330) at 10.76, down 7.24% [2] - Feikai Materials (300398) at 22.64, down 5.11% [2] - Kaihua Materials (831526) at 30.12, down 4.71% [2] Capital Flow - The electronic chemicals sector saw a net outflow of 854 million yuan from institutional investors, while retail investors contributed a net inflow of 523 million yuan [2] - The sector's capital flow indicates a mixed sentiment, with institutional investors withdrawing funds while retail investors increased their positions [2] Individual Stock Capital Flow - Guanghua Technology (002741) had a net inflow of 65.98 million yuan from institutional investors, while retail investors saw a net outflow of 12.0 million yuan [3] - Tian Cheng Technology (688603) experienced a net inflow of 17.15 million yuan from institutional investors, but a significant outflow of 23.31 million yuan from retail investors [3] - Siquan New Materials (301489) had a net inflow of 9.27 million yuan from institutional investors, with retail investors seeing a net outflow of 51.34 million yuan [3]

Group 1 - The stock of Tiantong Co., Ltd. (600330) fell by 4.13% today, with a turnover rate of 34.16% and a trading volume of 5.247 billion yuan, showing a fluctuation of 14.74% [2] - The stock was listed on the Shanghai Stock Exchange's watch list due to its turnover rate reaching 34.16%, with a net sell-off of 145 million yuan from the Shanghai-Hong Kong Stock Connect [2] - The main funds saw a net outflow of 1.392 billion yuan today, with large orders contributing to a net outflow of 1.047 billion yuan and a net outflow of 345 million yuan from big orders [2] Group 2 - In the first half of the year, the company reported a revenue of 1.584 billion yuan, representing a year-on-year growth of 1.00%, while net profit decreased by 33.29% to 52.6073 million yuan [3] - The latest margin trading data shows a total margin balance of 966 million yuan, with a financing balance of 962 million yuan and a securities lending balance of 4.5024 million yuan as of September 5 [2] - Over the past five days, the financing balance increased by 237 million yuan, marking a growth of 32.64%, while the securities lending balance rose by 1.8557 million yuan, an increase of 70.11% [2]