深圳市长方集团股份有限公司 会计政策、会计估计变更及会计差错管理制度 目 录 第一章 总则 第二章 会计政策变更、会计估计变更、会计差错更正的决策程序 第一节 会计政策变更 第二节 公司会计估计的变更 第三节 公司会计差错更正 第三章 信息披露 第四章 附则 第一章 总则 第一条 为适应公司规范运作的需要，加强财务会计管理，确保公司会计信 息的真实性、准确性和完整性，规范公司会计政策变更、会计估计变更及会计差 错更正的程序及信息披露，保护投资者的合法权益，根据《证券法》《上市公司 信息披露管理办法》《企业会计准则》《公开发行证券的公司信息披露编报规则 第19 号—财务信息的更正及相关披露》和《公司章程》等有关规定，制定本制 度。 第二条 本制度适用于公司及全资和控股子公司会计政策变更、会计估计变 更、会计差错更正及其信息披露。 第三条 本制度所称会计政策变更、会计估计变更和差错更正事项是指《企 业会计准则第28 号——会计政策、会计估计变更和差错更正》定义的会计政策 变更、会计估计变更和会计差错。 第四条 公司不得利用会计政策变更和会计估计变更操纵公司业绩以及所有 者权益等财务指标。 第二章 会计政策变更、会 ...

随着公司业务的发展和外部经济环境的变化，公司不断完善应收账款风险管 控措施，加强应收账款风险的精细化管理深度，为了更加准确地体现公司业务的 实际回款和可能的坏账损失情况，更加公允地反应公司整体财务状况和经营成果， 为投资者提供更可靠、更准确的会计信息，公司根据不断变化的应收款项信用风 险结构特征，结合历史回款情况及参考同行业可比公司的会计估计，变更应收账 款和合同资产的预期信用损失会计估计，对划分为应收客户款项的应收账款和合 同资产整个存续期预期信用损失率进行调整。 （二）会计估计的变更日期 公司自 2025 年 4 月 1 日起开始执行变更后的会计估计。 股票简称：宏景科技 股票代码：301396 公告编号：2025-049 宏景科技股份有限公司 本公司及董事会全体成员保证信息披露的内容真实、准确、完整，没有虚假 记载、误导性陈述或重大遗漏。 宏景科技股份有限公司（以下简称"公司"）根据《企业会计准则第 28 号— —会计政策、会计估计和差错更正》的相关规定，对公司相关会计估计进行变更， 公司本次会计估计变更采用未来适用法，无需对公司以前年度财务报表进行追溯 调整，不会对公司以前年度财务状况、经营成果和现金 ...

Group 1 - The company held its fourth board meeting on June 25, 2025, via telecommunication voting, with all 9 directors participating, ensuring compliance with legal and procedural requirements [2][4] - The board approved a proposal regarding changes in accounting estimates, aligning with relevant accounting standards and reflecting the company's business development [3][19] - The proposal received unanimous support from the board, with 9 votes in favor and no opposition [4] Group 2 - The company's supervisory board also convened on June 25, 2025, with all 3 supervisors participating, confirming the legality of the meeting [8][10] - The supervisory board approved the same proposal on accounting estimate changes, affirming that the decision-making process adhered to legal and regulatory standards [9][17] - The supervisory board concluded that the changes would provide a more accurate reflection of the company's financial status and credit risk [9][17] Group 3 - The company announced that the accounting estimate changes would be implemented from April 1, 2025, without requiring retrospective adjustments to previously disclosed financial reports [12][15] - The changes were prompted by the company's shift in business model following the change of its controlling shareholder to Hubei International Trade Group, enhancing the quality of accounts receivable [13][14] - The new accounting estimates aim to better reflect the expected credit risk of accounts receivable, facilitating more accurate financial assessments for investors [14][20] Group 4 - The company’s audit committee reviewed and approved the accounting estimate changes, confirming their compliance with accounting standards and the Shanghai Stock Exchange regulations [19][20] - The audit committee emphasized that the changes would allow for a more objective representation of the company's credit risk and financial performance [20]

Group 1 - The core point of the announcement is the change in accounting estimate regarding the functional currency of the wholly-owned overseas subsidiary, China Three Gorges New Energy (Hong Kong) Co., Ltd., from Hong Kong Dollar (HKD) to Euro (EUR) effective from July 1, 2025 [1] - The reason for the change is to better reflect the company's financial status and operating results, as the subsidiary primarily conducts its business transactions in Euro, and using HKD as the functional currency could lead to significant foreign exchange gains or losses due to currency fluctuations [1] - The change will not have a significant impact on the company's financial status and operating results for the year ending June 30, 2025, as it will be applied prospectively without retrospective adjustment [1] Group 2 - The audit committee reviewed and approved the proposal to change the functional currency, stating that it complies with the relevant accounting standards [1] - The board of directors also agreed to the change, emphasizing the need for an objective and fair representation of the company's financial condition and performance [1]

Core Viewpoint - The company has announced a change in accounting estimates regarding accounts receivable to better reflect its financial status and operational results following a change in its controlling shareholder to Hubei International Trade Group Co., Ltd. [1][2] Summary by Sections Overview of Accounting Estimate Change - The change in accounting estimates is effective from April 1, 2025, and does not require retrospective adjustments to previously disclosed financial reports, thus not affecting past financial conditions or operational results [1][2]. Reasons for Change - The change is driven by the improvement in the quality of accounts receivable and the diversification of trade business following the new controlling shareholder, which necessitates a more objective and fair reflection of expected credit risk [1][2]. Details of the Change - The previous expected credit loss rates for accounts receivable were: - Within credit period: 2% - Beyond one year: 5% - The new expected credit loss rates will be adjusted, although specific new rates are not disclosed in the announcement [2]. Impact on Financial Statements - The change will not affect past financial statements due to the application of the future applicability method [2]. - The specific impact on the company's 2025 profit and loss cannot be determined at this time and will be disclosed in the official 2025 audit report [2]. Opinions from Supervisory Board and Accounting Firm - The supervisory board supports the change, stating it aligns with relevant laws and regulations and accurately reflects expected credit risk [3][4]. - The accounting firm has issued a report confirming that the change complies with applicable regulations and standards [4][5]. Audit Committee Review - The audit committee has approved the change, affirming that it is a reasonable adjustment based on industry practices and the company's development [5].

Group 1 - The meeting is the second extraordinary general meeting of shareholders for Zhejiang Tiancheng Automatic Control Co., Ltd. in 2025, focusing on ensuring shareholders' rights and maintaining order during the meeting [1][2] - The meeting will include procedures such as attendance verification, voting methods, and the announcement of resolutions [2][3] - The company will implement a change in accounting estimates related to expected credit losses for accounts receivable in the vehicle seat business, effective from April 1, 2025 [4][6] Group 2 - The change in accounting estimates is based on the implementation of relevant financial standards and aims to reflect the company's financial status and operating results more objectively [4][5] - The expected credit loss rates for accounts receivable related to the vehicle seat business will be adjusted, with specific rates outlined for different aging categories [5][6] - The company will not retroactively adjust previously disclosed financial reports due to this change, ensuring no impact on past financial results [6]

关于浙江天成自控股份有限公司 会计估计变更的说明 天健函〔2025〕597 号 上海证券交易所： 第五届董事会第十九次会议审议通过了《关于会计估计变更的议案》，同意对车 辆座椅业务相关应收款项计提减值准备的会计估计进行变更。本次会计估计变更 尚需提交天成自控公司股东大会审议。根据上海证券交易所相关要求，现将天成 自控公司有关会计估计变更事项说明如下： 一、会计估计变更概述 (一) 变更的原因 天成自控公司结合客户信用和信用期限、最近三年应收账款的客户、账龄结 构和回款情况，同时参考同行业可比公司的信用损失准备计提标准，对应收款项 的预期损失率进行了审慎评估，为了更加客观、公允地反映天成自控公司的财务 状况和经营成果，拟对车辆座椅业务相关应收款项减值准备的计提进行会计估计 变更。 (二) 变更的日期 根据天成自控公司第五届董事会第十九次会议审议通过的《关于会计估计变 更的议案》，本次会计估计变更自 2025 年 4 月 1 日起执行。 (三) 变更的内容 天成自控公司拟对车辆座椅业务相关应收款项（应收票据-商业承兑汇票、 应收账款-车辆座椅业务组合）的预期信用损失率的会计估计做出变更，变更前 第 1 页 共 3 ...

Group 1 - The company held its 42nd meeting of the 9th Board of Directors on June 6, 2025, in compliance with the Company Law and Articles of Association [1] - The Board approved the proposal to abolish the Supervisory Board and amend the Articles of Association, which will be submitted to the shareholders' meeting for review [1] - The Board also approved the establishment of new Shareholders' Meeting Rules in accordance with the newly issued regulations by the China Securities Regulatory Commission [2] - The Board approved amendments to the Board Meeting Rules to align with the revised Articles of Association [2] - The company proposed changes to the depreciation period of certain fixed assets to better reflect their actual usage [2] - A second extraordinary shareholders' meeting is scheduled for June 30, 2025, to review the aforementioned proposals [2]

Core Viewpoint - The company has announced a change in accounting estimates regarding the depreciation period of certain fixed assets, which is expected to positively impact its financial results for the year 2025 [1][2]. Summary by Sections Accounting Estimate Change - The company has decided to change the depreciation period for pipeline and trench assets from 30 years to 35 years to better reflect their actual usage and lifespan [2][3]. - This change will take effect from April 1, 2025, and has been approved by the board of directors without the need for a shareholders' meeting [1][2]. Reasons for Change - The adjustment is based on the company's recent operational practices and maintenance improvements, which have enhanced the performance and longevity of the pipeline and trench assets [2][3]. - The assets meet national and industry standards, with a design lifespan of 50 years, and the actual usage has shown that some assets have exceeded the current depreciation period [3]. Financial Impact - The estimated reduction in fixed asset depreciation expenses for 2025 is approximately 21.52 million yuan, leading to an increase in total profit by the same amount and an increase in net assets attributable to shareholders by approximately 18.29 million yuan [3][4]. - A hypothetical application of this accounting estimate over the past three years would have shown significant increases in profit and net assets for those years as well [4]. Opinions from Supervisory Bodies - The supervisory board and the accounting firm have both reviewed and approved the accounting estimate change, confirming that the decision-making process complies with relevant laws and regulations and does not harm the interests of the company or its shareholders [5].

Core Viewpoint - The company is changing its accounting estimate for the depreciation period of certain fixed assets, specifically buildings, to better reflect their actual usage and to comply with accounting standards [1][2][3]. Summary by Sections Overview of Accounting Estimate Change - The change in accounting estimate for fixed asset depreciation will take effect from June 13, 2025, and will not require retrospective adjustments, meaning it will not affect the financial status or operating results of previous years [1][3]. Reasons for Change - The company has determined that the original depreciation period of 20 years for buildings does not accurately reflect their actual usage due to the increasing complexity and number of new constructions. The new estimate will extend the depreciation period to between 20 and 30 years [2][4]. Previous and New Accounting Estimates - Prior to the change, the depreciation method for buildings was the straight-line method with a useful life of 20 years and a residual value rate of 4.00%, resulting in an annual depreciation rate of 4.80% [2]. - After the change, the depreciation period will be adjusted to 20-30 years while maintaining the same residual value rate of 4.00%, leading to an annual depreciation rate ranging from 3.20% to 4.80% [2][3]. Decision and Approval Process - The change was approved during meetings of the Board of Directors and the Supervisory Board held on June 13, 2025, and does not require shareholder approval [3][4]. Impact of the Change - The change will only affect the depreciation and amortization of buildings that are put into use after June 13, 2025, and will not impact the financial results of prior periods [3][4]. Conclusion from the Accounting Firm - The accounting firm has confirmed that the management's explanation of the accounting estimate change complies with relevant accounting standards and accurately reflects the situation [4]. Review by Audit Committee - The Audit Committee has unanimously agreed that the change aligns with accounting standards and reflects the company's actual operating conditions, ensuring no harm to the company or minority shareholders [4]. Review by Supervisory Committee - The Supervisory Committee also supports the change, emphasizing that it accurately reflects the expected longer lifespan of the newly constructed buildings [4].