关于审计机构变更签字注册会计师的公告 2025年12月25日，公司收到容诚会计师事务所（特殊普通合伙）出具的《关 于变更北京万邦达环保技术股份有限公司签字注册会计师的说明函》，现将具体 情况公告如下： 一、本次签字注册会计师变更情况 证券代码：300055 证券简称：万邦达 公告编号：2025-066 北京万邦达环保技术股份有限公司 关于审计机构变更签字注册会计师的公告 本公司及董事会全体成员保证公告内容真实、准确、完整，没有虚假记载、误导性陈 述或重大遗漏。 北京万邦达环保技术股份有限公司（以下简称"公司"）于2025年4月16日 召开了第五届董事会第三十一次会议及第五届监事会第二十八次会议，于2025 年5月9日召开2024年年度股东大会，审议通过了《关于续聘2025年度审计机构的 议案》，同意续聘容诚会计师事务所（特殊普通合伙）为公司2025年度审计机构， 项目合伙人为闫钢军，签字注册会计师为张二勇，项目质量控制复核人为陈凯。 具体内容详见公司于2025年4月18日在巨潮资讯网（www.cninfo.com.cn）上披露 的《关于续聘2025年度审计机构的公告》（公告编号：2025-015）。 容诚会计 ...

关于控股股东部分股份质押的公告 证券代码：300055 证券简称：万邦达 公告编号：2025-065 北京万邦达环保技术股份有限公司 关于控股股东部分股份质押的公告 本公司及董事会全体成员保证公告内容真实、准确、完整，没有虚假记载、 误导性陈述或重大遗漏。 北京万邦达环保技术股份有限公司（以下简称"公司"）于 2025 年 12 月 25 日接到控股股东王飘扬先生通知，获悉其将持有的部分公司股份进行了质押， 具体情况如下： | | 是否为 | | | | | 是 | | | | | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | | 控股股 | | | | 是否为 | 否 | | | | | | 股东 | 东或第 | 本次质押数 | 占其所 | 占公司 | 限售股 | 为 | 质押起始 | 质押 | | 质押 | | 名称 | 一大股 | 量（股） | 持股份 | 总股本 | （如是， | 补 | 日 | 到期 | 质权人 | 用途 | | | 东及其 | | 比例 | 比例 | 注明限 | 充 | | 日 | | | ...

Group 1 - The refining and trading sector saw a slight increase of 0.08% on December 24, with Daqing Huake leading the gains [1] - The Shanghai Composite Index closed at 3940.95, up 0.53%, while the Shenzhen Component Index closed at 13486.42, up 0.88% [1] - Daqing Huake's stock price rose by 9.99% to 21.68, with a trading volume of 112,000 shares [1] Group 2 - The main funds in the refining and trading sector had a net inflow of 63.79 million yuan, while retail investors experienced a net outflow of 32.84 million yuan [2] - The trading volume for the refining and trading sector was significant, with Daqing Huake and Runbei Hangke both showing strong performance [2] - The stock of Hengyi Petrochemical increased by 9.24% to 9.34, with a trading volume of 813,400 shares [1] Group 3 - Hengyi Petrochemical had a net inflow of 77.40 million yuan from main funds, while retail investors showed a significant outflow of 76.74 million yuan [3] - Runbei Hangke also saw a net inflow of 49.92 million yuan from main funds, with a notable outflow from retail investors [3] - China Petroleum had a smaller net inflow of 4.41 million yuan from main funds, indicating mixed investor sentiment [3]

证券日报网讯 12月23日，万邦达发布公告称，截至本公告披露日，万邦达及控股子公司的担保额度总 金额为人民币360500万元，占公司2024年12月31日经审计净资产的比例为69.91%，公司及控股子公司 提供担保总余额为126245.82万元，占公司2024年12月31日经审计净资产的比例为24.48%。公司及控股 子公司对合并报表外单位提供的担保总余额为人民币0元。公司无逾期对外担保事项。 （文章来源：证券日报） ...

关于为全资子公司吉林固废提供信贷担保的进展公告 证券代码：300055 证券简称：万邦达 公告编号：2025-064 北京万邦达环保技术股份有限公司 关于为全资子公司吉林固废提供信贷担保的进展公告 本公司及董事会全体成员保证公告内容真实、准确、完整，没有虚假记载、 误导性陈述或重大遗漏。 一、担保情况概述 北京万邦达环保技术股份有限公司（以下简称"公司"）于 2025 年 4 月 16 日 召开第五届董事会第三十一次会议及第五届监事会第二十八次会议，于 2025 年 5 月 9 日召开 2024 年年度股东大会，审议通过了《关于 2025 年度为子公司提供担 保额度预计的议案》，同意公司在 2025 年度为子公司预计提供不超过人民币 9.05 亿元的担保额度，其中为资产负债率大于 70%的子公司提供担保额度合计为人民 币 0.8 亿元，为资产负债率小于 70%的控股子公司提供担保额度合计为人民币 8.25 亿元。担保方式包括但不限于保证、抵押、质押等。担保额度预计期限自 2024 年 年度股东大会审议通过之日起不超过十二个月，上述担保额度在有效期内可循环 使用，并授权公司董事长及其授权代表签署上述担保事项的相 ...

Group 1 - The core viewpoint of the news is that Wanbangda has shown significant trading activity and financial performance, with a notable increase in net profit despite a decrease in revenue [1][2]. Group 2 - On December 19, Wanbangda's stock rose by 1.21%, with a trading volume of 47.28 million yuan. The financing buy-in amount was 7.45 million yuan, while the financing repayment was 7.07 million yuan, resulting in a net financing buy of 0.39 million yuan [1]. - As of December 19, the total balance of margin trading for Wanbangda was 379 million yuan, which accounts for 6.29% of its market capitalization. This financing balance is above the 80th percentile level over the past year, indicating a high level [1]. - In terms of securities lending, on December 19, Wanbangda repaid 2,400 shares and sold 100 shares, with a selling amount of 750 yuan. The remaining securities lending volume was 59,800 shares, with a balance of 448,500 yuan, also exceeding the 90th percentile level over the past year [1]. Group 3 - Wanbangda, established on April 17, 1998, and listed on February 26, 2010, specializes in providing comprehensive industrial water treatment systems for large projects in coal chemical, petroleum chemical, and electric power industries. The main business revenue composition is 99.81% from petroleum chemical products [2]. - As of September 30, the number of shareholders for Wanbangda was 32,200, a decrease of 6.79% from the previous period, while the average circulating shares per person increased by 7.28% to 19,662 shares [2]. - For the period from January to September 2025, Wanbangda achieved an operating income of 1.784 billion yuan, a year-on-year decrease of 5.56%, while the net profit attributable to the parent company was 24.99 million yuan, a year-on-year increase of 390.47% [2]. Group 4 - Since its A-share listing, Wanbangda has distributed a total of 318 million yuan in dividends, with cumulative distributions of 25.10 million yuan over the past three years [3].

Core Viewpoint - Wanbangda (300055.SZ) is focusing on the production of automotive interior leather through its Huainan leather project, which is currently in the equipment procurement phase and will adopt a sales-based production model after reaching full capacity [1] Group 1 - The main application direction of the Huainan leather project products is automotive interior leather [1] - The project is currently in the major equipment procurement stage [1] - The expected sales model after reaching production capacity will be based on sales [1]

Core Viewpoint - The company Wanbangda (300055.SZ) has clarified the main application directions of its products from the Jieyang project, indicating a focus on various industries including adhesives, rubber/tire, road marking paint, and plastic tracks [1] Group 1 - The main products from the Jieyang project include isoprene, piperylene, bicyclopentadiene, SBS/SEBS/SIS/SEPS, and functionalized high-performance styrene-butadiene rubber [1] - These products are expected to have wide applications in adhesives, rubber and tire manufacturing, road marking paints, and plastic running tracks [1]

Core Viewpoint - Wanbangda (300055.SZ) is focusing on the production of automotive interior leather through its Huainan leather project, which is currently in the equipment procurement stage and will adopt a sales-based production model after reaching full capacity [1] Group 1 - The main application of the products from the Huainan leather project will be in automotive interior leather [1] - The project is currently in the major equipment procurement phase [1] - The expected sales strategy post full production will be a sales-based production model [1]

Group 1: Company Overview - Beijing Wanbangda Environmental Technology Co., Ltd. was established in 1998, initially focusing on industrial wastewater treatment in the petrochemical sector [1] - The company has transitioned into the chemical new materials field through investments in Huizhou Yisike, leveraging its Guangdong Yisike (Jieyang) base for high-end new material development [1][2] Group 2: Product Development and Competitive Advantages - The new TPE synthetic leather products feature innovative molecular structure design, offering various properties such as skin-friendly, environmentally friendly, wear-resistant, and flame-retardant characteristics [2] - The Jieyang project will produce key products including isoprene, pentadiene, and SBS/SEBS/SIS/SEPS, which will be used in adhesives, rubber, and other applications [3] Group 3: Project Progress and Production Capacity - The Jieyang project is set to begin construction in 2024 and aims for trial production in 2025, with three production units planned: a 250,000 tons/year carbon five separation unit and two 30,000 tons/year SBS/SEBS/SIS/SEPS units [2] - The carbon five separation unit has already entered trial production, while other units are in the commissioning phase [2] Group 4: Research and Development - The company has built a research team of over a hundred members, combining experienced experts and project leaders with younger developers [4] - Approximately 60% of current research projects focus on cutting-edge new materials [5] Group 5: Sales Strategy - The sales strategy for new products targets large clients and relies on distributors, gradually building a sales network through key partnerships [5]