关于召开 2025 年第一次临时股东会通知公告（提供网络投票） 本公司及董事会全体成员保证公告内容的真实、准确和完整，没有虚假记载、 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个别及连 带法律责任。 一、会议召开基本情况 （二）召集人 证券代码：830974 证券简称：凯大催化 公告编号：2025-073 杭州凯大催化金属材料股份有限公司 （一）股东会届次 本次会议为 2025 年第一次临时股东会。 本次股东会的召集人为董事会。 （三）会议召开的合法合规性 本次股东会的召集符合《公司法》等有关法律、法规及《公司章程》的规定， 无需相关部门批准或履行其他程序。 （四）会议召开方式 本次会议采用现场投票和网络投票相结合方式召开。 公司同一股东只能选择现场投票、网络投票中的一种方式，如果同一表决 权出现重复投票表决的，以第一次投票表决结果为准。 （五）会议召开日期和时间 1、现场会议召开时间：2025 年 9 月 9 日 14:30。 2、网络投票起止时间：2025 年 9 月 8 日 15:00—2025 年 9 月 9 日 15:00。 登记在册的股东可通过中国证券登记结算有限责任公司（以下 ...

证券代码：830974 证券简称：凯大催化 公告编号：2025-040 杭州凯大催化金属材料股份有限公司 第四届监事会第十一次会议决议公告 本公司及监事会全体成员保证公告内容的真实、准确和完整，没有虚假记载、 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个别及连 带法律责任。 一、会议召开和出席情况 （一）会议召开情况 1.会议召开时间：2025 年 8 月 19 日 2.会议召开地点：全资子公司浙江凯大催化新材料有限公司会议室（浙江省湖州 市长兴县城南工业园区经五路 8 号） 3.会议召开方式：现场和通讯 4.发出监事会会议通知的时间和方式：2025 年 8 月 8 日以书面方式发出 5.会议主持人：监事会主席邬学军先生 6.召开情况合法、合规、合章程性说明： 会议的召集、召开和表决程序符合有关法律、法规及《公司章程》的有关规 定。 （二）会议出席情况 会议应出席监事 3 人，出席和授权出席监事 3 人。 监事邬学军因工作原因以通讯方式参与表决。 二、议案审议情况 （一）审议通过《关于取消监事会并修订<公司章程>的议案》 1.议案内容： 根据《中华人民共和国公司法》《上市公司章程指引（20 ...

证券代码：830974 证券简称：凯大催化 公告编号：2025-039 杭州凯大催化金属材料股份有限公司 第四届董事会第十三次会议决议公告 本公司及董事会全体成员保证公告内容的真实、准确和完整，没有虚假记 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个 别及连带法律责任。 一、会议召开和出席情况 （一）会议召开情况 1.会议召开时间：2025 年 8 月 19 日 2.会议召开地点：全资子公司浙江凯大催化新材料有限公司会议室（浙江省 湖州市长兴县城南工业园区经五路 8 号） 5.会议主持人：董事长姚洪先生 6.会议列席人员：全体监事、高级管理人员 7.召开情况合法、合规、合章程性说明： 会议的召集、召开和表决程序符合有关法律、法规及《公司章程》的有关 规定。 （二）会议出席情况 会议应出席董事 9 人，出席和授权出席董事 9 人。 董事谭志伟、郑刚、唐向红、朱建林、史莉佳和彭兵因工作原因以通讯方式 参与表决。 （一）审议通过《关于取消监事会并修订<公司章程>的议案》 3.会议召开方式：现场和通讯 4.发出董事会会议通知的时间和方式：2025 年 8 月 8 日以书面方式发出 二、议案审议 ...

1. Report Industry Investment Rating - No relevant content provided 2. Core Viewpoints of the Report - The platinum and palladium markets are characterized by high supply concentration and low elasticity, with significant influence from factors such as mine production, recycling, and demand in various sectors. The Chinese market has a high dependence on imports for platinum - palladium resources, and the recycling sector is becoming increasingly important. The development of platinum - palladium futures and options provides new investment opportunities [15][22][86] - The demand for platinum and palladium in the automotive catalyst sector is affected by factors such as the development of new - energy vehicles and emission standards. The potential for growth in the hydrogen energy sector offers new prospects for the consumption of platinum and palladium [37][47][77] 3. Summary by Directory 3.1 Platinum and Palladium Variety Overview - Platinum and palladium, along with rhodium, ruthenium, osmium, and iridium, form the platinum - group metals (PGMs), which are precious metals. Platinum and palladium have higher demand than other PGMs. Platinum has a crustal content of 0.005 ppm, and palladium has 0.0006 ppm [6] - Platinum (Pt) has a high melting point, good ductility, and excellent electrical and thermal conductivity. It is mainly used in industrial catalysts, jewelry, electronics, etc. Palladium (Pd) can adsorb gases, is corrosion - resistant, and is mainly used in the catalyst field [7][8] - Platinum - group metal deposits can be divided into primary and secondary sand deposits. The main formation causes include magmatic action, hydrothermal processes, and exogenous deposition [10] 3.2 Platinum - Group Metal Industry Chain - The supply chain of platinum - group metals has an "oligopoly" structure. Most raw material supply and smelting are in the hands of a few integrated mining and smelting producers. The separation and purification processes of platinum - group metals vary according to the raw material composition. The current mainstream purity of platinum and palladium in the spot market is not less than 99.95%, and the Guangzhou Futures Exchange requires the delivery purity to be no less than 99.95% [15][19] - The extraction of platinum - group metals involves steps such as exploration, mining development, ore extraction, processing, and refining. Recycling of platinum - group metals is highly valued due to their low crustal content [16][20] 3.3 Global Platinum Supply - Demand Pattern - The main platinum - supplying countries are South Africa, Zimbabwe, and Russia. In 2024, South Africa's platinum output accounted for 71% of the global total. The global platinum output declined in 2024, and it is expected to decline further in 2025 [55][57] - The main platinum - consuming regions are China, Europe, North America, and Japan. In 2024, the global platinum demand decreased by 1.6% to 198 tons, with a supply gap of 1.98 tons. The demand in the automotive industry, jewelry, and other sectors showed different trends [59][65] 3.4 Global Palladium Supply - Demand Pattern - The main palladium - supplying countries are Russia, South Africa, Canada, and the United States. In 2024, Russia and South Africa accounted for 43% and 41% of the global total respectively. The global palladium output increased by 0.7 tons to 25.6 tons in 2024, with a supply surplus of 2.4 tons [69][71][77] - The main palladium - consuming regions are China, the United States, Europe, and Japan. The demand for palladium in the automotive catalyst sector decreased due to factors such as the substitution of new - energy vehicles [73][77] 3.5 Chinese Platinum - Group Resource Pattern - China's platinum - group metal resources are extremely scarce, with most of the reserves in Gansu. In 2024, China produced 4.9 tons of platinum - palladium metals. The import dependence on platinum - palladium resources is high, and the recycling industry is facing challenges such as waste shortages [82][86] - In 2024, China imported 104.1 tons of platinum and 28.1 tons of palladium. The consumption of platinum and palladium in China showed different trends, with the consumption of palladium in the automotive catalyst sector declining significantly [88][92][100] 3.6 Platinum and Palladium Price Review - The historical price trends of platinum and palladium are influenced by factors such as supply - demand relationships, economic conditions, and geopolitical situations. The price difference between platinum and palladium and the ratio of gold to platinum also show certain patterns [116] 3.7 Draft of Platinum and Palladium Futures of Guangzhou Futures Exchange - The contract text, risk control system, and delivery business of platinum and palladium futures on the Guangzhou Futures Exchange are under development. The current global active platinum and palladium futures markets are mainly in COMEX [52] 3.8 Platinum and Palladium Options - The draft of platinum and palladium options includes the option contract solicitation draft and the risk control system [42]

Group 1: Market Performance - The average daily change for the North Exchange (北证) and A-shares (A股) shows significant fluctuations, with a peak of 30% for Tianrun Technology (天润科技) on July 25, 2025[8] - The trading volume for the North Exchange reached a total of 600 billion CNY, with an average turnover rate of 16% as of July 25, 2025[6] - The average price-to-earnings ratio (PE) for companies listed on the North Exchange varies significantly across industries, with some sectors showing a PE as high as 516.07[12] Group 2: Stock Performance - The top-performing stocks on July 25, 2025, include Tianrun Technology with a 30% increase and a market capitalization of 29.19 billion CNY[8] - Conversely, the worst-performing stock, Jikang Technology (基康技术), saw a decline of 12.56% with a market capitalization of 52.76 billion CNY[9] - The average daily change for the North Exchange was notably higher than that of the A-share market, indicating a more volatile trading environment[7] Group 3: Risks and Challenges - The report highlights risks including lower-than-expected policy support, insufficient technological innovation, and increased market competition[13] - Market volatility remains a significant concern, impacting investor sentiment and stock performance across various sectors[13]

证券代码：830974 证券简称：凯大催化 公告编号：2025-038 本公司及董事会全体成员保证公告内容的真实、准确和完整，没有虚假记载、 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个别及连 带法律责任。 杭州凯大催化金属材料股份有限公司 关于控股孙公司完成注销的公告 一、基本情况 杭州凯大催化金属材料股份有限公司（以下简称"公司"）基于战略发展需要，为 进一步优化资源配置，精简组织结构，降低管理成本，提高公司整体管理效率及经营 效益，决定注销公司控股孙公司江西凯大金属资源有限公司（以下简称"凯大资源"）， 并于 2025 年 6 月 5 日披露了《关于拟注销控股孙公司的公告》（公告编号：2025- 036）。 2025 年 7 月 24 日，公司收到江西省吉安市峡江县市场监督管理局出具的《注销 公告》，公司控股孙公司凯大资源已完成注销手续。 二、注销主体基本情况 公司名称：江西凯大金属资源有限公司 统一社会信用代码：91360823MACFUJYR5Y 注册资本：5000 万人民币 经营范围：一般项目：再生资源回收（除生产性废旧金属），再生资源加工，有 色金属合金制造，有色金属合金销售 ...

Market Overview - On July 18, the North Exchange A-shares trading volume reached 22.46 billion yuan, an increase of 1.31 billion yuan from the previous trading day[3] - The North Exchange 50 Index closed at 1418.6, down 0.7%, with a PE TTM of 67.25 times[3] - The North Exchange Specialized and New Index closed at 2428.8, down 0.4%[3] Stock Performance - Among 268 companies on the North Exchange, 74 rose, 7 remained flat, and 187 fell[3] - The top five gainers were: Jiahe Technology (30.0%), Wanyuantong (11.0%), Kaida Catalysis (10.7%), Benlang New Materials (9.1%), and Haidaer (6.8%)[3] - The top five losers were: Guoyi Tender (-6.4%), Chunguang Pharmaceutical (-4.8%), Tonghui Information (-4.3%), Huaxi Technology (-4.2%), and Guoyuan Technology (-3.9%)[3] Investment Insights - The overall trading activity on the North Exchange improved, indicating better capital participation, but market differentiation is significant[6] - Key themes include the Ministry of Industry and Information Technology's upcoming plans for ten key industries, which may boost the materials and basic chemical sectors[6] - Short-term market fluctuations are expected, but policy benefits and deepening reforms at the North Exchange may enhance long-term confidence[6]

Summary of Key Points Core Viewpoint The trading activity on the Beijing Stock Exchange (BSE) showed a decrease in transaction volume and value compared to the previous trading day, with a notable number of stocks experiencing price increases. Trading Volume and Value - On July 10, the total trading volume on the BSE reached 1.064 billion shares, with a total transaction value of 21.134 billion yuan, reflecting a decrease of 1.321 billion yuan from the previous trading day [1]. - Among the traded stocks, 158 stocks closed higher, accounting for 59.40% of the total [1]. Stock Performance - The stocks that hit the daily limit up included Guoyi Bidding and Guangzi International, while the top gainers were Zhongshe Consulting, Jiuling Technology, and Kaida Catalysis, with increases of 13.16%, 9.67%, and 9.09% respectively [1]. - Conversely, 104 stocks closed lower, with the largest declines seen in Jinbo Biology, Shengnan Technology, and Wanda Bearings, which fell by 3.58%, 3.20%, and 2.99% respectively [1]. Active Stocks - A total of 64 stocks had transaction values exceeding 10 million yuan, with the highest transaction values recorded for Ainengju, Jiuling Technology, and Guoyi Bidding at 537.48 million yuan, 517.52 million yuan, and 438.50 million yuan respectively [1]. - The trading activity was characterized by 27 stocks having a turnover rate exceeding 10%, with 7 stocks exceeding 20% [1]. Notable Stocks - The top stocks by turnover rate included Zhongshe Consulting (44.00%), Huawi Design (31.54%), and Ainengju (28.31%) [1]. - The detailed performance of selected stocks is as follows: - Ainengju: Closing price 22.77 yuan, increase 4.45%, turnover rate 28.31%, transaction value 537.48 million yuan [1]. - Jiuling Technology: Closing price 72.60 yuan, increase 9.67%, turnover rate 20.05%, transaction value 517.52 million yuan [1]. - Guoyi Bidding: Closing price 19.11 yuan, increase 30.00%, turnover rate 16.63%, transaction value 438.50 million yuan [1].

Industry Overview - The precious metal materials industry chain consists of precious metal supply, processing and manufacturing, downstream applications, and resource recycling [1] - Precious metals are obtained through exploration, mining, and smelting, including gold, silver, palladium, rhodium, iridium, ruthenium, osmium, and platinum [1] - Precious metals are used in various fields such as automotive, electronics, new energy, petrochemicals, biomedicine, and environmental protection [1] Downstream Applications - The unique properties of precious metal materials lead to their extensive use in traditional industries like automotive and chemicals, as well as emerging sectors such as new energy and information technology [3] - The demand for precious metal materials is driven by the development of regulations in non-road mobile machinery and shipping emissions, as well as advancements in hydrogen fuel cell vehicles [3] Industry Chain Analysis - Key players in the precious metal supply include mining companies and recycling firms, with notable companies like Zijin Mining, Shandong Gold, and Yuyuan Platinum [6] - Major manufacturers of precious metal materials include Guiyan Platinum and Kairui New Materials, with significant production from companies like Suzhou Solid and Juhua Materials [6] Company Performance - In terms of revenue, Zijin Mining is projected to exceed 100 billion yuan in 2024, while Shandong Gold and Hengbang shares are expected to surpass 50 billion yuan [8] - Guiyan Platinum achieved a revenue of 24.43 billion yuan in the first half of 2024, leading in production volume with over 2000 tons of various precious metal materials [8] - Other companies like Juhua Materials and Youyan New Materials also reported significant revenues, with Juhua Materials at 6.73 billion yuan and Youyan New Materials at 8.12 billion yuan [9][10]

证券代码：830974 证券简称：凯大催化 公告编号：2025-036 杭州凯大催化金属材料股份有限公司 关于拟注销控股孙公司的公告 本公司及董事会全体成员保证公告内容的真实、准确和完整，没有虚假记载、 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个别及连 带法律责任。 杭州凯大催化金属材料股份有限公司（以下简称"公司"）基于战略发展需要， 为进一步优化资源配置，精简组织结构，降低管理成本，提高公司整体管理效率及 经营效益，拟注销控股孙公司江西凯大金属资源有限公司（以下简称"凯大资源"）。 根据《中华人民共和国公司法》《北京证券交易所股票上市规则》《公司章程》《对 外投资管理制度》等规定，本次注销事宜无需提交董事会、股东会审议。现将具体 情况公告如下： 一、拟注销控股孙公司基本情况 公司名称：江西凯大金属资源有限公司 统一社会信用代码：91360823MACFUJYR5Y 住所：江西省吉安市峡江县工业园区 类型：其他有限责任公司 成立日期：2023 年 04 月 18 日 法定代表人：周惟斌 注册资本：5000 万人民币 经营范围：一般项目：再生资源回收（除生产性废旧金属），再生资源加工， ...