募集资金年度存放与使用情况鉴证报告 天健审〔2025〕1-1204 号 北京广厦环能科技股份有限公司全体股东： 目 录 一、募集资金年度存放与使用情况鉴证报告………………………第 1—2 页 二、关于募集资金年度存放与使用情况的专项报告…………… 第 3—10 页 三、执业资质证书…………………………………………………第 11—14 页 我们鉴证了后附的北京广厦环能科技股份有限公司（以下简称广厦环能公司） 管理层编制的 2024 年度《关于募集资金年度存放与使用情况的专项报告》。 一、对报告使用者和使用目的的限定 本鉴证报告仅供广厦环能公司年度报告披露时使用，不得用作任何其他目的。 我们同意将本鉴证报告作为广厦环能公司年度报告的必备文件，随同其他文件一 起报送并对外披露。 二、管理层的责任 广厦环能公司管理层的责任是提供真实、合法、完整的相关资料，按照《北 京证券交易所股票上市规则（试行）》(北证公告〔2024〕22 号)、《北京证券 交易所上市公司持续监管指引第 9 号——募集资金管理》（北证公告〔2023〕76 号）及相关格式指引的规定编制《关于募集资金年度存放与使用情况的专项报告》， 并保证其内容真实、 ...

证券代码：873703 证券简称：广厦环能 公告编号：2025-026 北京广厦环能科技股份有限公司舆情管理制度 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。 北京广厦环能科技股份有限公司于 2025 年 4 月 22 日召开第四届董事会第七 次会议，审议通过《关于制定<舆情管理制度>的议案》，该议案无需提交公司股 东大会审议。 二、 制度的主要内容，分章节列示： 北京广厦环能科技股份有限公司 舆情管理制度 （2025 年 4 月） 第一章 总则 第一条 为提高北京广厦环能科技股份有限公司（以下简称"公司"）应对 各类舆情的能力，建立快速反应和应急处理机制，及时、妥善处理各类舆情对公 司股价、公司商业信誉及正常生产经营活动造成的影响，切实保护投资者和公司 的合法权益，有效维护上市公司品牌形象和市场声誉，根据《北京证券交易所股 票上市规则（试行）》等法律法规和规范性文件以及《北京广厦环能科技股份有 限公司章程》（以下简称《公司章程》）的规定，结合公司实际情况，制定本制 度。 第二条 本制度所称舆情包括： ...

证券代码：873703 证券简称：广厦环能 公告编号：2025-011 北京广厦环能科技股份有限公司 2024 年度独立董事述职报告（任淑彬） 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。 任淑彬，男，1978 年 1 月出生，中国籍，无境外永久居留权，材料学博士， 毕业于北京科技大学，持有深圳证券交易所独立董事资格证书。2008 年 1 月至 今在北京科技大学工作，现任教授、博士生导师；2023 年 7 月至今，任济南强 锋新材料技术中心（有限合伙）执行事务合伙人；2024 年 9 月至今，任北京集 慧新材科技中心（有限合伙）执行事务合伙人；2024 年 12 月至今任北京天宜上 佳高新材料股份有限公司独立董事；2021 年 7 月至今担任公司独立董事。 报告期内，本人任职符合《上市公司独立董事管理办法》《北京证券交易所 上市公司持续监管指引第 1 号——独立董事》规定的独立性要求，不存在影响独 立性的情况。 二、出席董事会、股东大会情况 2024 年度，公司共召开 10 次董事会会议和 4 次股东 ...

证券代码：873703 证券简称：广厦环能 公告编号：2025-012 北京广厦环能科技股份有限公司 2024 年度独立董事述职报告（朱小琳） 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。 作为北京广厦环能科技股份有限公司（以下简称"公司"）的独立董事，2024 年度任职期间本人严格按照《公司法》《证券法》《上市公司独立董事管理办法》 《北京证券交易所上市公司持续监管指引第 1 号——独立董事》和《公司章程》 等相关规定，诚实、勤勉、独立地履行职责，积极出席相关会议，认真审议董事 会各项议案，充分发挥独立董事的独立性和专业性作用，切实维护公司和公众股 东的合法权益。现将本人在 2024 年度履行独立董事职责情况汇报如下： 一、独立董事的基本情况及独立性情况 朱小琳女士，1978 年 7 月出生，中国国籍，无境外永久居留权，硕士研究 生学历，注册会计师。2003 年 11 月至 2007 年 10 月，任中瑞岳华会计师事务所 （特殊普通合伙）审计经理；2007 年 10 月至 2011 年 12 月，任 ...

证券代码：873703 证券简称：广厦环能 公告编号：2025-013 北京广厦环能科技股份有限公司 2024 年度独立董事述职报告（宋刚已离任） 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。 作为北京广厦环能科技股份有限公司（以下简称"公司"）的独立董事，2024 年度任职期间本人严格按照《公司法》《证券法》《上市公司独立董事管理办法》 《北京证券交易所上市公司持续监管指引第 1 号——独立董事》和《公司章程》 等相关规定，诚实、勤勉、独立地履行职责，积极出席相关会议，认真审议董事 会各项议案，充分发挥独立董事的独立性和专业性作用，切实维护公司和公众股 东的合法权益。现将本人在 2024 年度履行独立董事职责情况汇报如下： 一、独立董事的基本情况及独立性情况 宋刚，男，中国籍，无境外永久居留权，1974 年 8 月出生，会计硕士，毕 业于北京大学光华管理学院，正高级会计师，中国注册会计师资深会员、中国注 册税务师，财政部全国高端会计人才，财政部政府会计准则委员会第三届咨询专 家，最高人民检察院、财政 ...

Financial Performance - Operating revenue for Q1 2025 was CNY 60,424,069.37, down 62.06% year-on-year from CNY 159,241,341.02[10] - Net profit attributable to shareholders for Q1 2025 was CNY 15,094,436.11, a decline of 61.37% compared to CNY 39,073,192.04 in the same period last year[10] - The total operating profit for Q1 2025 was CNY 15,098,230.25, compared to CNY 43,213,889.55 in Q1 2024, reflecting a decline of approximately 65.1%[38] - Total operating costs for Q1 2025 were CNY 50,651,960.15, down from CNY 115,952,243.91 in Q1 2024, indicating a reduction of about 56%[35] - Basic and diluted earnings per share for Q1 2025 were both ¥0.14, down from ¥0.37 in Q1 2024[37] - The company's weighted average return on net assets based on net profit attributable to shareholders was 1.39%, down from 3.98% in the previous year[10] Cash Flow - The net cash flow from operating activities was CNY -30,867,453.18, a decrease of 225.64% compared to CNY 24,567,263.07 in the previous year[10] - The cash flow from operating activities for Q1 2025 was negative at CNY -30,867,453.18, compared to a positive CNY 24,567,263.07 in Q1 2024[41] - The total cash inflow from operating activities of CNY 50,918,264.24 in Q1 2025, compared to CNY 192,760,588.74 in Q1 2024, a decrease of approximately 73.6%[40] - The total cash outflow from operating activities in Q1 2025 was CNY 81,785,717.42, compared to CNY 168,193,325.67 in Q1 2024[40] - Cash inflow from investment activities was $126.70 million, an increase from $91.57 million year-over-year[43] - Net cash flow from investment activities was $71.17 thousand, a significant improvement from -$124.90 million in the previous period[43] Assets and Liabilities - Total assets as of March 31, 2025, were CNY 1,293,072,478.29, a decrease of 0.85% compared to the end of 2024[10] - Total current assets as of March 31, 2025, amount to ¥1,021,978,845.70, a decrease from ¥1,094,020,516.89 as of December 31, 2024, representing a decline of approximately 6.6%[29] - Total liabilities decreased to ¥197,224,402.27 from ¥223,583,056.33, a reduction of about 11.8%[31] - The company's asset-liability ratio (consolidated) improved to 15.25% from 17.14% at the end of 2024[10] - Total equity attributable to shareholders increased to ¥1,095,848,076.02 from ¥1,080,550,006.67, showing a growth of approximately 1.4%[31] Shareholder Information - The total number of ordinary shareholders was 3,916 as of the end of the reporting period[17] - The largest shareholder, Han Jun, holds 52,684,800 shares, representing 48.94% of the total shares[18] - The second largest shareholder, Siyang Hejun Information Consulting Center, holds 8,232,000 shares, accounting for 7.65%[18] - The total shares held by the top ten shareholders amount to 78,834,419, which is 73.23% of the total shares[19] - There are no pledged or judicially frozen shares among the top ten shareholders[21] - The company has committed to not reducing shareholdings for 12 months starting from March 27, 2025, with Han Jun holding 13,171,200 shares and Liu Yongchao holding 1,234,800 shares[25] Other Income and Expenses - The company reported a significant increase in other income, which rose by 1,129.94% to CNY 1,103,505.41 due to increased government subsidies[12] - The company experienced a 542.62% increase in credit impairment losses, amounting to CNY 2,533,157.98, due to provisions for bad debts[12] - The company incurred research and development expenses of CNY 3,621,940.33 in Q1 2025, down from CNY 5,436,745.82 in Q1 2024, indicating a reduction of about 33.4%[38] - The company reported other income of CNY 64,160.12 in Q1 2025, compared to a loss of CNY -113,108.59 in Q1 2024, showing a significant turnaround[38] Legal and Compliance - The company has no ongoing litigation or arbitration matters during the reporting period[24] - The company has disclosed that all previously announced commitments have been fulfilled without any violations[25] - The financial report has not been audited[28]

Financial Performance - The company reported a total revenue of 107.66 million yuan for the fiscal year 2024, marking a year-on-year increase of 15%[23]. - The company's operating revenue for 2024 reached ¥540,975,730.52, representing a year-over-year increase of 3.17% compared to ¥524,377,225.93 in 2023[25]. - The company reported a net profit attributable to shareholders for 2024 was ¥154,169,365.78, a significant increase of 22.71% from ¥125,639,301.32 in 2023[25]. - The total revenue for the period was ¥540,975,730.52, with a significant increase in revenue from high-efficiency heat exchangers due to increased project investments by downstream customers[68]. - The company achieved a revenue of CNY 540,975,730.52 for the fiscal year 2024, with 99.91% of this revenue coming from high-efficiency heat exchanger products[95]. - The company reported a basic earnings per share of ¥1.43 for 2024, a decrease of 2.72% from ¥1.47 in 2023[25]. - The company reported a positive retained earnings balance, indicating profitability during the reporting period[147]. Profitability and Margins - The gross profit margin improved to 35%, up from 30% in the previous year, indicating enhanced operational efficiency[23]. - The gross profit margin improved to 43.85% in 2024, up from 42.51% in 2023[25]. - The return on equity based on net profit attributable to shareholders was 15.16% in 2024, down from 21.70% in 2023[25]. Research and Development - The company has allocated 5 million yuan for R&D in new technologies, focusing on energy efficiency improvements[23]. - Research and development expenses increased by 21.59% to ¥29,002,630.96 in 2024, compared to ¥23,852,818.01 in 2023[57]. - The company's R&D expenditure for the current period is CNY 29,002,630.96, representing 5.36% of operating revenue, an increase from 4.55% in the previous period[88]. - The total number of R&D personnel increased from 36 to 45, with the proportion of R&D staff in total employees rising from 9.23% to 12.00%[90]. - The company has ongoing R&D projects aimed at developing new products, including a high-efficiency heat exchanger and a new type of dual-sided enhanced high-flow tube[92]. Market Expansion and Strategy - User data showed a 20% increase in active clients, reaching a total of 5,000 clients by the end of 2024[23]. - Market expansion efforts have led to a 25% increase in sales in the eastern region of China, with plans to enter the southern market in 2025[23]. - The company plans to launch two new products in 2025, including a high-efficiency heat exchanger and an advanced evaporator, expected to contribute an additional 10 million yuan in revenue[23]. - The company has established long-term stable partnerships with major clients, enhancing its market recognition and competitive position[45]. - The company plans to continue expanding its market presence through new product development and strategic partnerships[92]. Financial Position and Assets - Total assets increased by 3.77% to ¥1,304,133,063.00 in 2024, compared to ¥1,256,754,913.14 in 2023[26]. - Total liabilities decreased by 31.56% to ¥223,583,056.33 in 2024, down from ¥326,669,178.77 in 2023[26]. - The company's cash and cash equivalents decreased by 22.14% to ¥567,771,389.89 in 2024 from ¥729,195,205.39 in 2023[53]. - Inventory levels decreased by 51.68% to ¥67,771,669.39 in 2024, down from ¥140,252,355.06 in 2023[53]. - The company holds financial products totaling ¥518,000,000.00, with no overdue amounts or expected impairments[82]. Risks and Challenges - The company has identified potential risks related to supply chain disruptions, which could impact production timelines[23]. - The company faces risks related to customer concentration, with the top five customers contributing a significant portion of revenue, necessitating market diversification efforts[111]. - The company is exposed to macroeconomic risks that could impact demand for its products, prompting proactive measures to adapt to economic changes[111]. - Fluctuations in raw material prices, particularly steel, pose a risk to production costs, and the company is developing strategies to mitigate this impact[112]. Corporate Governance and Management - The company has established new governance systems and revised its articles of association to improve operational standards[171]. - The board of directors and management team underwent a restructuring, with new appointments including Zhu Xiaolin as an independent director and Hao Zhenliang as vice general manager[154][155]. - The independent directors played a crucial role in enhancing corporate governance and protecting minority shareholders' interests[172]. - The company has maintained independence and autonomous operational capabilities in its business dealings with the controlling shareholder[188]. Dividend Policy - The management highlighted a commitment to maintaining a stable dividend policy, with a proposed dividend payout ratio of 30%[23]. - The company approved a cash dividend of 7.00 CNY per 10 shares, totaling 53.83 million CNY, to be distributed to shareholders[142]. - The cash dividend distribution was completed on April 26, 2024[142]. - The company has a clear and compliant cash dividend policy, ensuring protection for minority shareholders[143]. Audit and Compliance - The audit report issued by Tianjian Accounting Firm confirmed that the financial statements fairly reflect the company's financial position as of December 31, 2024, with no reservations noted[196]. - The audit procedures included evaluating internal controls related to revenue recognition and testing their operational effectiveness[200]. - The company ensured that revenue-related information was appropriately disclosed in the financial statements[200].

证券代码：873703 证券简称：广厦环能 公告编号：2025-008 北京广厦环能科技股份有限公司股票解除限售公告 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、本次股票解除限售数量总额为 21,500,060 股，占公司总股本 19.9703%，可 交易时间为 2025 年 3 月 27 日。 C 自愿限售解除限售 D 限制性股票解除限售 二、本次股票解除限售的明细情况及原因 单位：股 | | 股东姓名或名 | 是否为控 股股东、 | 董事、监 事、高级 | 本次 解限 | 本次解除限 | 本次解除 限售股数 | 尚未解除限 | | --- | --- | --- | --- | --- | --- | --- | --- | | 序号 | | 实际控制 | | | 售登记股票 | | 售的股票数 | | | 称 | 人或其一 | 管理人员 | 售原 | 数量 | 占公司总 | 量 | | | | 致行动人 | 任职情况 | 因 | | 股本比例 | | | 1 | 韩军 | 是 | 董事长 ...

证券代码：873703 证券简称：广厦环能 公告编号：2025-007 北京广厦环能科技股份有限公司 关于使用部分闲置募集资金进行现金管理进展的公告 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。 一、 授权现金管理情况 （一）审议情况 1、北京广厦环能科技股份有限公司（以下简称"公司"）分别于 2024 年 1 月 8 日召开第三届董事会第十八次会议、第三届监事会第十四次会议，于 2024 年 1 月 24 日召开 2024 年第一次临时股东大会，审议通过了《关于使用 部分闲置募集资金进行现金管理的议案》。在确保不影响募集资金投资项目正 常实施及确保募集资金安全的前提下，本次拟使用额度不超过 3.70 亿元的闲 置募集资金进行现金管理，自公司股东大会审议通过之日起 12 个月内有效， 在上述额度范围内，可循环滚动使用。公司拟投资的品种为保障投资本金安全 的银行理财产品、定期存款、结构性存款产品、大额存单等产品，产品收益分 配方式根据公司与产品发行主体签署的相关协议确定。拟投资的产品安全性 高、流动性好 ...

Investment Rating - The investment rating for the company is "Buy" (first coverage) [5] Core Viewpoints - The company specializes in enhanced heat transfer technology and high-efficiency heat exchanger manufacturing, providing energy-efficient and stable heat transfer solutions [5][8] - The market for heat exchange equipment in China is expected to continue growing, with a projected increase from 81.05 billion yuan in 2019 to 90.02 billion yuan in 2023, and an estimated compound annual growth rate of 3.29% until it reaches 99.21 billion yuan by 2026 [5][40] - The company has a strong competitive advantage in heat transfer solutions, focusing on technology-driven development and possessing multiple core technologies and patents [5][43] Company Overview - The company, Beijing Guangsha Huaneng Technology Co., Ltd., was established in 2001 and aims to become a global leader in enhanced heat transfer technology products [8] - The main products include high-flow heat exchangers, high-condensation heat exchangers, corrugated tube heat exchangers, and falling film evaporators, which are critical in various industrial applications [9][11] Financial Forecast - The company's total revenue is projected to grow from 524.38 million yuan in 2023 to 695.13 million yuan by 2026, with a compound annual growth rate of approximately 9.15% [4] - The net profit attributable to the parent company is expected to increase from 125.64 million yuan in 2023 to 176.35 million yuan by 2026, with a notable growth rate of 22.84% in 2024 [4] Industry Development Status - The heat exchange equipment market in China is experiencing steady growth, driven by stable demand from downstream industries such as refining, petrochemicals, and modern coal chemistry [40] - The company is well-positioned in the high-efficiency heat exchanger sector, having developed significant capabilities in research, design, and manufacturing over its 20 years of operation [42]