Core Viewpoint - The company, Huaguang New Materials, showcases its commitment to sustainable development through its 2024 ESG report, highlighting achievements in technological innovation, green development, and social responsibility [1] Group 1: ESG Report Highlights - The 2024 ESG report marks the second consecutive year of public sustainability reporting by the company, reflecting its ongoing efforts and determination in the ESG field [1] - The report emphasizes significant achievements in green manufacturing, social responsibility, and corporate governance, alongside the company's exploration in the brazing materials sector [1] - The company aims to create long-term value for shareholders, customers, employees, and society by advancing sustainable practices [1] Group 2: Technological Innovation and Product Development - Huaguang New Materials has developed a diverse product matrix, including copper-based, silver-based, tin-based brazing materials, silver paste, and aluminum brazing materials, expanding applications into emerging fields such as renewable energy and AI [2] - As of the end of 2024, the company holds 123 patents, including 48 invention patents, with R&D investment reaching approximately 74.27 million yuan, accounting for 3.87% of main business revenue [2] - Collaborations with renowned domestic and international universities and research institutions have enhanced the company's R&D capabilities and promoted deep integration of industry, academia, and research [2] Group 3: Environmental Initiatives - In 2024, the company's total environmental investment reached 1.47 million yuan, with energy-saving measures reducing greenhouse gas emissions by 133.60 tons of CO2 equivalent [3] - The company established a wastewater reuse system, increasing water resource reuse rate to 20%, with plans to further enhance it to 50% or more [3] - The total amount of non-hazardous waste generated in 2024 was 112.87 tons, achieving 100% compliance in disposal [3] Group 4: Employee Development and Corporate Vision - The company prioritizes employee health and safety, offering comprehensive training programs that cover various aspects of professional development, achieving a training coverage rate of 100% in 2024 [3] - The chairman of the company emphasized the new development opportunities for brazing materials in the context of the global manufacturing industry's transformation towards intelligence and sustainability [3] - The company is committed to its corporate spirit of integrity, diligence, innovation, and dedication, focusing on low-carbon, health and safety, and social contribution [4]

Core Viewpoint - The company seeks shareholder approval to authorize the board to issue shares through a simplified process to specific investors, with a total financing amount not exceeding RMB 300 million, which is capped at 20% of the net assets as of the end of the previous year [1][5]. Summary by Sections Authorization Overview - The board proposes to the shareholders to authorize the board to issue shares through a simplified process, with a total financing amount not exceeding RMB 300 million and not exceeding 20% of the net assets as of the end of the previous year [1]. Specifics of the Authorization - The shares to be issued are domestic listed ordinary shares (A shares) with a par value of RMB 1.00 each [2]. - The issuance will be a non-public offering to no more than 35 specific investors, including legal entities and individuals, with cash subscriptions only [2]. - The pricing will be based on the average trading price over the 20 trading days prior to the pricing date, adjusted for any corporate actions [3]. Issuance Details - The issuance will commence after shareholder approval and will be executed at an appropriate time determined by the board [4]. - The funds raised will be used for projects related to the company's main business [4]. - There will be a lock-up period of six months for the newly issued shares, with specific conditions for certain investors extending to eighteen months [4]. Decision-Making Process - The board has already approved the proposal during its meeting on April 2, 2025, and will submit it for shareholder approval at the 2024 annual general meeting [5].

公司代码：688379 公司简称：华光新材 杭州华光焊接新材料股份有限公司 杭州华光焊接新材料股份有限公司全体股东： 根据《企业内部控制基本规范》及其配套指引的规定和其他内部控制监管要求（以下简称企业内 部控制规范体系），结合本公司（以下简称公司）内部控制制度和评价办法，在内部控制日常监督和专 项监督的基础上，我们对公司2024年12月31日（内部控制评价报告基准日）的内部控制有效性进行了 评价。 一. 重要声明 按照企业内部控制规范体系的规定，建立健全和有效实施内部控制，评价其有效性，并如实披露 内部控制评价报告是公司董事会的责任。监事会对董事会建立和实施内部控制进行监督。经理层负责 组织领导企业内部控制的日常运行。公司董事会、监事会及董事、监事、高级管理人员保证本报告内 容不存在任何虚假记载、误导性陈述或重大遗漏，并对报告内容的真实性、准确性和完整性承担个别 及连带法律责任。 公司内部控制的目标是合理保证经营管理合法合规、资产安全、财务报告及相关信息真实完整， 提高经营效率和效果，促进实现发展战略。由于内部控制存在的固有局限性，故仅能为实现上述目标 提供合理保证。此外，由于情况的变化可能导致内部控制变得不 ...

证券代码：688379 证券简称：华光新材 公告编号：2025-029 杭州华光焊接新材料股份有限公司 关于续聘 2025 年度审计机构的公告 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： ??公司拟聘任中汇会计师事务所（特殊普通合伙）（以下简称"中 汇"）为公司2025年度财务报告和内部控制审计机构 ??本事项尚需提交股东大会审议。 拟聘任会计师事务所的基本情况 （一）机构信息 事务所名称 中汇会计师事务所（特殊普通合伙） 成立日期 2013年12月19日 组织形式 特殊普通合伙 注册地址 杭州市上城区新业路8号华联时代大厦A幢601室 首席合伙人 余强 2024年末合伙人数量 116人 业人员数量 签署过证券服务业务审计报告的注册会计师 289人 最 近 一 年 业务收入总额 101,434万元 （2024年度） 审计业务收入 89,948万元 经审计的收 入总额 证券业务收入 45,625万元 客户家数 180家 审计收费总额 15,494 万元 上年度（2023 （1）制造业-电气机械及器材制造业 ...

证券代码：688379 证券简称：华光新材 公告编号：2025-036 杭州华光焊接新材料股份有限公司 关于公司核心技术人员退休离任的公告 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： ●杭州华光焊接新材料股份有限公司（以下简称"华光新材"或"公司"）核心 技术人员范仲华先生因退休原因申请辞去核心技术人员职务。范仲华先生退休离 任后仍将担任公司顾问。 ●范仲华先生与公司签有保密及竞业限制相关协议，不存在涉及职务发明专 利权属纠纷或潜在纠纷的情形，其退休离任也不影响公司专利权属的完整性。 ●范仲华先生的工作均已完成交接，公司的技术研发工作均有序推进。范仲 华先生的离任不会对公司的技术优势、核心竞争力、业务发展和产品创新产生实 质性影响，不会影响公司现有核心技术及研发项目的工作开展。 一、核心技术人员离任的具体情况 公司核心技术人员范仲华先生因退休原因申请辞去核心技术人员职务。退 休离任后，范仲华先生仍将担任公司顾问。公司及董事会对范仲华先生在职期 间的勤勉工作和为公司发展做出的贡献表示衷心感谢！ （一）核心 ...

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： 杭州华光焊接新材料股份有限公司（以下简称"公司"或"华光新材"）拟 开展套期保值业务合约价值不超过人民币 2 亿元，套期保值业务保证金最高余额 不超过人民币 5000 万元（额度范围内资金可滚动使用），资金来源为自有资金， 不涉及募集资金。额度有效期为自公司董事会审议通过之日起 12 个月。 公司的套期保值业务以政策生产经营为基础，以降低原材料价格波动产生的 不利影响为目的，不进行单纯以营利为目的的投机和套利交易。 证券代码：688379 证券简称：华光新材 公告编号：2025-031 杭州华光焊接新材料股份有限公司 关于公司开展套期保值业务的公告 处理。 三、开展套期保值业务的风险分析及应对措施 公司于 2025 年 4 月 2 日召开了第五届董事会第十八次会议、第五届监事会 第十六次会议，审议通过了《关于公司开展套期保值业务的议案》，本议案无需 提交公司股东大会审议。 一、开展套期保值业务的必要性 鉴于铜材和白银占公司产品成本比重较大，其采购价格受市场价格 ...

Core Viewpoint - The company has appointed Zhonghui Certified Public Accountants as its auditing firm for the 2024 financial year, emphasizing the firm's strong professional competence and independence in conducting audits [1][2][3]. Group 1: Appointment of Auditing Firm - Zhonghui Certified Public Accountants was established on December 19, 2013, and is located in Hangzhou, with 116 partners and 694 registered accountants, of which 289 have signed audit reports for securities services [1]. - The total revenue for Zhonghui in 2024 is projected to be RMB 1,014.34 million, with audit services contributing RMB 899.48 million and securities services RMB 456.25 million [2]. - The company’s audit committee conducted a thorough evaluation of Zhonghui's qualifications and independence before recommending its appointment to the board [3]. Group 2: Audit Committee Oversight - The audit committee held a meeting on March 18, 2024, to review and approve the proposal for reappointing Zhonghui, confirming its strong professional competence and good integrity [3][4]. - Throughout the audit process, the audit committee maintained open communication with Zhonghui, providing feedback and ensuring adherence to the audit plan [4][5]. - The audit committee conducted meetings in March 2025 to discuss audit adjustments and findings, ensuring that all issues were addressed and recommendations were made [5][6]. Group 3: Overall Evaluation - The audit committee adhered to regulations and effectively supervised Zhonghui, ensuring timely and accurate audit reports [6]. - Zhonghui demonstrated professionalism and integrity during the audit of the company's 2024 annual report, completing the work in a timely and organized manner [6].

Fundraising Overview - The company raised a total of RMB 369.16 million by issuing 22 million shares at a price of RMB 16.78 per share, with funds received on August 14, 2020 [1] - The company has utilized RMB 57.13 million in 2020, RMB 53.23 million in 2021, RMB 63.32 million in 2022, and RMB 65.06 million in 2023, with a remaining balance of RMB 8.55 million from various projects to supplement working capital [1][2] Fund Management - The company established a dedicated account for fundraising management, signing a tripartite supervision agreement with banks and the sponsor to ensure proper use of funds [1] - As of December 31, 2024, the total balance in the fundraising accounts was RMB 19.93 million, which has since been transferred to the company's own funds [1][2] Project Implementation - The company completed the "Annual Production of 4,000 Tons of New Green Brazing Materials Intelligent Manufacturing Construction Project" by December 31, 2024, with surplus funds permanently supplementing working capital [1][2] - The company has also approved the completion of the "Existing Brazing Materials Production Line Technical Transformation Project" and the "New Connection Materials and Process R&D Center Construction Project," reallocating surplus funds to working capital [1][2][3] Cash Management - The company has utilized idle fundraising to temporarily supplement working capital, with approvals for amounts up to RMB 12 million, RMB 11 million, and RMB 8 million for cash management in various meetings [5][6][7] - The company has ensured that cash management does not affect the progress of fundraising investment projects [5][6][7] Project Adjustments - The company has adjusted the implementation location for the "Annual Production of 4,000 Tons of New Green Brazing Materials Intelligent Manufacturing Construction Project" to optimize automation and production efficiency [1][2] - The company has reported delays in project timelines due to equipment procurement issues and has extended the expected completion dates for certain projects [8] Compliance and Reporting - The company has received positive verification reports from the accounting firm regarding the management and use of fundraising, confirming compliance with relevant regulations [1][2] - The sponsor has also issued a report affirming that the company has adhered to fundraising management regulations and has not misused funds [1][2]

| | | | 关于杭州华光焊接新材料股份有限公司 | | | | | | | | | | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | | | | 非经营性资金占用及其他关联资金往来情况 | | | | | | | | | | | | | | 汇总表的专项审计报告 | | | | | | | | | | | 目 录 | | | | | | | | | | | | | | 委托单位：杭州华光焊接新材料股份有限公司 | | | | | | | | | | | | | | 审计单位：中汇会计师事务所（特殊普通合伙） | | | | | | | | | | | | | | 联系电话：0571-88879999 | | | | | | | | | | | | | | 附表 | | | | | | | | | | | | | | | | | | | 关于杭州华光焊接新材料股份有限公司 | | | | | | | | | 位：万元 | | | | | | | | | | | | 单 | | | | | 占 ...

案》 月 26 日 同意 | 杭州华光焊接新材料股份有限公司 | | | --- | --- | | 杭州华光焊接新材料股份有限公司（以下简称"公司"或"华光新材"）董 | | | 事会审计委员会，严格按照《中华人民共和国公司法》 | | | 《中华人民共和国证券法》 | | | 《上海证券交易所科创板股票上市规则》《上海证券交易所科创板上市公司自律 | | | 1 监管指引第 号——规范运作》《公司章程》等相关规范性文件的规定，围绕公 | | | 司年度生产经营目标切实开展各项工作。现就董事会审计委员会 2024 年度履职 | | | 情况报告如下： | | | 一、董事会审计委员会基本情况 | | | 公司第四届董事会审计委员会由金瑛女士、吴昊先生、金李梅女士 3 名委员 | | | 组成，金瑛女士、吴昊先生均为公司独立董事，其中金瑛女士为专业会计人士。 | | | 委员会成员具备会计、法律、经济等方面的专业知识，能够胜任工作职责，符合 | | | 《公司章程》等制度的有关要求。 | | | 二、董事会审计委员会会议召开情况 | | | 通过了会议相关议案并发表了同意提交董事会审议的意见，具体情况如下： ...