国泰海通证券股份有限公司 关于杭州热威电热科技股份有限公司 使用部分暂时闲置募集资金进行现金管理的核查意见 国泰海通证券股份有限公司（以下简称"国泰海通"或"保荐人"）作为杭州热 威电热科技股份有限公司（以下简称"热威股份"、"公司"或"发行人"）首次公开 发行股票并在主板上市的保荐人，根据《证券发行上市保荐业务管理办法》《上 市公司募集资金监管规则》《上海证券交易所上市公司自律监管指引第 1 号—— 规范运作》《上海证券交易所股票上市规则》等有关法律法规和规范性文件的要 求，就杭州热威电热科技股份有限公司使用暂时闲置募集资金进行现金管理的事 项进行了审慎核查，并发表如下核查意见： 一、募集资金基本情况 经中国证券监督管理委员会出具的《关于同意杭州热威电热科技股份有限公 司首次公开发行股票注册的批复》（证监许可[2023]1482 号），公司于 2023 年 8 月 30 日首次公开发行人民币普通股（A 股）40,010,000 股，发行价格为人民币 人民币 11,860.40 万元后，募集资金净额为 80,562.70 万元。 上述募集资金已于 2023 年 9 月 5 日全部到账，并由天健会计师事务所（特 ...

Core Points - The company has announced the redemption of cash management products using idle raised funds, ensuring that it does not affect the construction of investment projects and the use of raised funds [2][4] - The total amount of idle raised funds used for cash management is capped at RMB 12.6 billion, including some interest, with a decision validity of 12 months from the board's approval date [2][5] - The company has successfully redeemed cash management products with a total investment of RMB 1.1 billion, yielding a total return of approximately RMB 12.5 million [2] Summary by Sections 1. Cash Management Redemption Situation - The company approved the use of idle raised funds for cash management, with a maximum amount of RMB 12.6 billion [2] - The company redeemed cash management products from various banks, including China Bank and Construction Bank, with total investments and returns detailed [2] 2. Overall Situation of Cash Management - As of August 28, 2025, there are no overdue amounts related to cash management, and the remaining balance of idle raised funds is zero [2] 3. Purpose and Review Process of Cash Management - The purpose is to enhance the efficiency of idle raised funds and increase returns for the company and its shareholders [5] - The board approved the cash management proposal with unanimous support [5][17] 4. Fund Source and Management - The funds come from the 2016 non-public stock issuance, which raised a total of RMB 1.46 billion after deducting fees [5][6] - The management of raised funds is in compliance with regulatory requirements [11] 5. Investment Products and Risk Control - The company plans to invest in high-security, liquid, and principal-protected financial products with a maximum term of 12 months [8][9] - Risk control measures include strict adherence to investment guidelines and regular monitoring of fund usage [14] 6. Impact on Daily Operations - The cash management plan will not affect the normal operation of the company or the execution of investment projects [15] - The strategy aims to generate additional returns from idle funds, benefiting overall company performance [15] 7. Special Opinions - The supervisory board and the sponsor have expressed support for the cash management plan, confirming it aligns with regulatory standards and does not alter the intended use of raised funds [17]

Core Viewpoint - The company intends to utilize part of its temporarily idle raised funds for cash management, ensuring that it does not affect the normal operation of fundraising investment projects and guarantees the safety of funds [1][4][8]. Fundraising Basic Information - The company raised a total of RMB 3,255,615,848.10 from its initial public offering of 32,984,963 shares at a price of RMB 9.87 per share, with all funds received and verified by an accounting firm [1][2]. Cash Management Purpose - The cash management aims to improve the efficiency of fund usage, increase cash asset returns, and protect shareholder interests while ensuring that fundraising investment projects are not impacted [4][5]. Cash Management Products - The company plans to invest in high-safety, liquid, principal-protected products, including but not limited to time deposits, large certificates of deposit, and notice deposits [4][5]. Investment Limit and Duration - The company intends to use up to RMB 130,000 million of temporarily idle funds for cash management, with a validity period of 12 months from the board's approval [4][5]. Implementation Method - The board authorizes the management to make investment decisions and sign relevant legal documents, with the finance management center responsible for organizing the implementation [4][5]. Information Disclosure - The company will fulfill its information disclosure obligations in accordance with relevant regulations and guidelines [5][8]. Cash Management Income Distribution - The income from cash management will be used to supplement any shortfall in the investment amounts of fundraising projects, and the funds will be returned to the fundraising special account upon maturity [5][8]. Impact on Company Operations - The cash management will not affect the normal operation of fundraising investment projects or the company's main business, and it is expected to enhance overall performance and shareholder returns [5][8]. Review Procedures - The board and supervisory board have approved the cash management proposal, confirming that it aligns with regulatory requirements and does not harm the interests of the company or its shareholders [7][8]. Sponsor's Verification Opinion - The sponsor has verified that the cash management plan complies with relevant regulations and will enhance fund usage efficiency without altering the intended use of the raised funds [8].

中信建投证券股份有限公司 关于深信服科技股份有限公司 序号 募集资金使用项目 项目投资总额 拟用募集资金投资额 使用部分闲置募集资金进行现金管理的核查意见 中信建投证券股份有限公司（以下简称"中信建投证券"或"保荐人"）作为深 信服科技股份有限公司（以下简称"深信服"或"公司"）创业板向不特定对象发行 可转换公司债券的保荐人，根据《证券发行上市保荐业务管理办法》《上市公司 募集资金监管规则》《深圳证券交易所创业板股票上市规则》《深圳证券交易所 上市公司自律监管指引第 2 号——创业板上市公司规范运作》等法规的有关规定， 对深信服拟使用闲置募集资金进行现金管理的事项进行了审慎核查，核查的具体 情况如下： 一、募集资金基本情况 经中国证券监督管理委员会《关于同意深信服科技股份有限公司向不特定对 象发行可转换公司债券注册的批复》（证监许可〔2023〕1428 号）批复同意， 公司向不特定对象发行可转换公司债券数量 1,214.7560 万张，每张面值为人民币 用合计 9,036,166.38 元后，实际募集资金净额为 1,205,719,833.62 元。上述募集 资金到位情况已经致同会计师事务所（特殊普通合伙）验 ...

Group 1 - The company announced the convening of the third meeting of the fourth board of directors and the third meeting of the fourth supervisory board on August 20, 2025 [2] - The company approved a proposal to use temporarily idle raised funds for cash management, with a limit not exceeding RMB 155 million [2] - The cash management will involve purchasing safe and liquid principal-protected financial products, ensuring that it does not affect the construction of investment projects and normal operations [2]

Core Points - The company announced a plan to use idle self-owned funds for cash management, with a maximum amount of RMB 105,000.00 million [1] - The cash management products to be purchased will be high-security, good liquidity, and capital-preserving [1] - The authorization period for this plan is 12 months from the date of the board's approval, allowing for rolling use of funds within the specified limit [1]

Core Viewpoint - The company plans to utilize part of its temporarily idle raised funds for cash management to enhance fund efficiency and returns while ensuring the safety and normal use of the raised funds [4][12]. Group 1: Investment Overview - The investment amount for cash management is set at 30 million yuan [5]. - The source of funds for this cash management comes from temporarily idle raised funds [5]. - The total amount raised from the initial public offering was approximately 519.92 million yuan, with a net amount of about 412.11 million yuan after deducting related expenses [6]. Group 2: Investment Purpose - The purpose of the investment is to effectively reduce the cost of idle raised funds and enhance their value preservation and appreciation capabilities, ultimately benefiting the shareholders [4]. Group 3: Investment Method - The cash management products to be purchased are principal-protected, low-risk products with a 98-day investment cycle and floating returns [8]. - The company assures that this cash management will not affect the normal construction of fundraising projects or the normal use of raised funds [8]. Group 4: Approval Process - The board of directors and the supervisory board approved the cash management proposal during meetings held on February 25, 2025 [2][9]. - The board authorized the use of up to 150 million yuan of temporarily idle raised funds for cash management, with a validity period of 12 months [9]. Group 5: Risk Analysis and Control - The cash management products are considered low-risk, but they may still face various risks, including policy, market, liquidity, and unforeseen events [10]. - The company will implement strict controls by selecting high-safety, high-liquidity products and maintaining proper accounting records for the cash management products [11].

Core Viewpoint - The company has approved the use of idle raised funds and self-owned funds for cash management, ensuring that it does not affect the normal operation of fundraising investment plans and the safety of raised funds [1] Group 1: Cash Management Approval - The company and its subsidiaries are authorized to use up to 100 million yuan of idle raised funds and up to 300 million yuan of self-owned funds for cash management within 12 months from the board's approval date [1] - The investment period for individual cash management products will not exceed 12 months [1] Group 2: Cash Management Implementation - The subsidiary, Hunan Hongong Intelligent Technology Co., Ltd., has utilized part of its idle self-owned funds for cash management [1] - The company has a total of 100 million yuan in unused self-owned funds for cash management as of the announcement date, which is within the authorized limit set by the board [3] Group 3: Risk Control Measures - The company will track and analyze the net value changes of cash management products and take necessary measures if risks to fund safety are identified [2] - Independent directors and the supervisory board have the authority to supervise and inspect the use of funds for related products [2] - The company will fulfill its information disclosure obligations according to the regulations of the Shenzhen Stock Exchange [2] Group 4: Impact on Company Operations - The use of idle self-owned funds for cash management will not affect the company's normal production and operation, as the purchased products are highly liquid and safe [3]

Core Viewpoint - China Haisong Engineering Technology Co., Ltd. has approved the use of idle raised funds for cash management, allowing the company to utilize 120 million yuan of idle funds for a period of 12 months, enhancing the efficiency of fund usage and potentially generating returns for the company and its shareholders [1][3]. Group 1: Cash Management Implementation - The company has recently used part of the idle raised funds to purchase safe and liquid principal-protected financial products [1]. - The board of directors and supervisory board have authorized the management to handle related matters and sign necessary documents regarding the cash management [1][5]. Group 2: Risk Analysis and Control Measures - The company acknowledges potential market volatility affecting the investment returns, despite the chosen products being of high safety and liquidity [2]. - Strict adherence to prudent investment principles will be maintained, avoiding investments in stocks, derivatives, and unsecured bonds [2]. - The financial management center will monitor product allocation and project progress, taking timely actions to mitigate risks if necessary [2]. Group 3: Impact on Company Operations - The cash management of idle funds will not affect the normal operation of the company's fundraising projects and will ensure the safety of the raised funds [3]. - This approach is expected to improve the efficiency of fund usage and provide better investment returns for the company and its shareholders [3].

Core Viewpoint - The company plans to utilize part of its idle raised funds for cash management to enhance the efficiency and returns of the funds while ensuring that the investment plans remain unaffected and the safety of the raised funds is guaranteed [2][5][8] Cash Management Overview - The purpose of the cash management is to improve the efficiency and returns of the raised funds without affecting the normal investment plans and ensuring the safety of the funds [2][5] - The maximum daily balance for cash management is set at RMB 500 million, with an authorization period of 12 months from the board's approval date [2][3] - The source of funds for this cash management is the idle raised funds [2] Fundraising and Investment Projects - The company has raised a total of RMB 577.2 million from a non-public offering of 413,916,713 shares at a price of RMB 14.02 per share, after deducting issuance costs [3] - As of June 30, 2025, the balance of the raised funds account is RMB 706.8 million, which includes earnings from cash management and bank interest [3][5] - The company is advancing its investment projects according to the planned usage of the raised funds [3] Cash Management Investment Methods - The cash management will involve investments in safe, liquid, and principal-protected products, including bank deposits and other financial instruments [5][6] - The company will ensure that the cash management products do not involve non-raised funds or other uses [5][6] Decision-Making Process - The cash management plan was approved by the company's board and supervisory committee on July 22, 2025, without needing shareholder approval [6] - The supervisory committee supports the cash management plan, stating it will not affect the normal investment plans or harm shareholder interests [6][8] Impact of Cash Management - The cash management is designed to not affect the normal operations of the investment projects or the company's main business while improving fund efficiency and generating returns for the company and its shareholders [8]