Core Viewpoint - The company is changing its accounting estimates regarding the provision for bad debts, effective from September 1, 2025, which will not affect its previous financial results or conditions [1][2]. Summary by Sections Overview of Accounting Estimate Change - The change aims to better reflect the financial status of individual statements and simplify accounting processes between the company and its subsidiaries. The new approach will involve grouping inter-company receivables and conducting impairment tests only when there is objective evidence of impairment [1]. Impact of the Accounting Estimate Change - According to the relevant accounting standards, this change will be applied prospectively and will not require restatement of previously disclosed financial reports, thus having no impact on the company's past financial results [2]. Opinions from Audit Committee, Supervisory Board, and Accounting Firm - The Audit Committee believes the change is a reasonable adjustment that will provide more accurate financial information and does not harm the interests of shareholders, especially minority shareholders [2] - The Supervisory Board supports the change as a reasonable adjustment that aligns with risk management and complies with relevant regulations, ensuring it does not harm shareholder interests [2] - The accounting firm also views the change as reasonable and compliant with accounting standards [3]

Group 1 - The company held its ninth meeting of the fifth supervisory board on August 26, 2025, with all three supervisors present, and the meeting complied with relevant laws and regulations [2][3]. - The supervisory board approved the change in accounting estimates, stating that it aligns with the relevant provisions of the accounting standards and reflects the company's financial status and operating results more objectively [2][3]. - The board also agreed to terminate the specific stock issuance for the year 2023, confirming that the decision followed the necessary legal procedures [3][4]. Group 2 - The supervisory board approved the company's 2025 semi-annual report and its summary, affirming that the report accurately reflects the company's actual situation without any misleading statements or omissions [3][4].

Overview - The company, Zhuhai Huijin Technology Co., Ltd., announced a change in accounting estimates related to accounts receivable and notes receivable to better reflect expected credit losses [2][4]. Accounting Estimate Change Overview - The change in accounting estimates will be implemented on June 1, 2025, and will not require retrospective adjustments to previously disclosed financial reports [2][4]. - The previous accounting estimate involved grouping receivables based on credit risk characteristics, specifically dividing notes receivable into high and low credit rating categories [2][3]. - The new accounting estimate will categorize notes receivable into bank acceptance bills and commercial acceptance bills, while accounts receivable will still be divided into receivables for goods sold and warranty deposits [3]. Impact of the Change - The change will not affect the previously disclosed financial statements, as it adopts a prospective application method [4]. - The new estimates are expected to provide a more objective and accurate reflection of the company's financial condition and operating results [4]. Board of Directors' Justification - The Board believes the change is reasonable and aligns with the relevant accounting standards, ensuring a fair representation of the company's financial status [5]. - The decision-making process for this change complies with legal regulations and the company's articles of association, with no detriment to the company or shareholders [5]. Audit Committee Opinion - The Audit Committee supports the change, stating it reflects the company's actual situation and complies with relevant regulations [5]. Supervisory Committee Opinion - The Supervisory Committee agrees with the change, confirming it aligns with accounting standards and does not harm the interests of the company or its shareholders [5].

Group 1 - The board of directors of Zhuhai Huijin Technology Co., Ltd. held its 12th meeting of the 5th session on August 26, 2025, with all 6 attending directors present, confirming compliance with relevant laws and regulations [2][3] - The board approved a change in accounting estimates, which is deemed reasonable and aligns with the actual situation of the company, ensuring a more objective reflection of its financial status and operating results [2][3] - The board decided to terminate the issuance of shares to specific targets for the year 2023, with the decision being made after review by the strategic committee and independent directors [3][4] Group 2 - The board approved the 2025 semi-annual report and its summary, confirming that the report complies with legal and regulatory requirements, and contains no false statements or omissions [3][4]

Core Viewpoint - Jiangxi Hongcheng Environment Co., Ltd. is undergoing a change in accounting estimates related to the depreciation of fixed assets, specifically the service life and residual value of its pipeline network, to better reflect the actual usage and comply with updated national standards [2][3]. Summary by Sections Management and Governance Responsibilities - The management is responsible for accurately preparing and disclosing the accounting estimate changes, ensuring no false records or misleading statements exist [2]. - The governance layer oversees the preparation process of the accounting estimate change [2]. Auditor's Responsibilities - The auditor's role is to provide a review opinion on the accounting estimate change based on the audit procedures performed [2][3]. Details of the Accounting Estimate Change - The change is based on the review of fixed asset service life and residual value, adhering to the principles of prudence and relevant accounting standards [3]. - New national standards require that the design service life of urban water supply structures should not be less than 50 years [4]. Comparison of Accounting Estimates - The depreciation period for the pipeline network has been adjusted from 15 years to 35 years, with a residual value of 3% remaining unchanged [6][7]. Impact of the Accounting Estimate Change - The change is expected to reduce the fixed asset depreciation expense by approximately 38.64 million yuan for the fiscal year 2025, with no retrospective adjustments required for prior financial reports [5][6]. - The change will also affect future depreciation amounts and total profits [6].

Core Viewpoint - The document outlines the accounting policies, estimates, and error correction approval and disclosure system of Beijing Shuangjie Electric Co., Ltd, aiming to enhance the relevance, reliability, and completeness of financial reporting and information disclosure [2][11]. Chapter Summaries Chapter 1: General Principles - The purpose of the system is to standardize the application of accounting policies and estimates, improve management of changes, and ensure timely and complete information disclosure [2]. Chapter 2: Scope of Changes - Accounting policy changes refer to alterations in principles, bases, and methods used for accounting recognition, measurement, and reporting [3]. - Consistency in accounting policies is required for similar transactions, with changes allowed only under specific conditions such as legal requirements or improved reliability of information [3][4]. Chapter 3: Handling Changes and Errors - Changes in accounting estimates are based on the latest available information and affect the book value of assets or liabilities [4]. - Major accounting errors, defined as those affecting the reliability of financial statements, must be adjusted in the retained earnings of the earliest period [5][6]. Chapter 4: Approval and Disclosure of Policy Changes - Changes in accounting policies require sufficient evidence of their reasonableness and must be approved by the board of directors, with disclosure obligations to the Shenzhen Stock Exchange [7][8]. Chapter 5: Approval and Disclosure of Estimate Changes - Significant changes in accounting estimates must be reported similarly to policy changes, with specific thresholds for board approval and disclosure [9][10]. Chapter 6: Approval and Disclosure of Major Errors - Major accounting errors must be reported and disclosed following board approval, with specific criteria for when a special audit report is required [10]. Chapter 7: Supplementary Provisions - The system is subject to interpretation by the board of directors and is effective upon approval by the shareholders' meeting [11].

Core Viewpoint - The company is changing its accounting estimates regarding bad debt provisions for receivables related to renewable energy subsidies, which will enhance the accuracy and reasonableness of its financial reporting [1][2]. Summary by Sections Overview of Accounting Estimate Change - The company will adopt a future application method for the accounting estimate change, effective from April 1, 2025, without needing to restate previously disclosed financial reports [1][4]. - The change specifically addresses the provision for bad debts related to receivables from the national renewable energy price subsidy, now treated as a separate category with a 5% provision rate [1][4]. Reasons and Content of the Change - The change is driven by the need for a more accurate reflection of the company's financial status and operating results, given the distinct credit risk characteristics of receivables from renewable energy subsidies compared to other receivables [2][3]. - The government has emphasized the development of the solid waste treatment industry, leading to an expansion in the company's waste-to-energy business, which has different credit risk profiles [2]. Impact of the Change - The accounting estimate change is expected to reduce credit impairment losses by 2.79 million yuan and increase net profit by 2.16 million yuan for the first half of 2025 [4]. - The company cannot currently disclose the full-year impact for 2025 due to uncertainties regarding the year-end receivables balance and aging distribution [4]. Auditor's Opinion - The auditing firm has confirmed that the accounting estimate change is reasonable and complies with relevant accounting standards and regulations, ensuring it does not significantly impact the company's financial status [4][5]. Audit Committee Review - The audit committee has reviewed the change and agrees that it will provide a more timely and accurate reflection of the company's financial condition, affirming that it aligns with national accounting standards [5].

Core Viewpoint - The report discusses the accounting estimate change by Haitan Water Group Co., Ltd., focusing on the adjustment of bad debt provisions for receivables related to national renewable energy subsidies, aiming to enhance the accuracy and reasonableness of financial reporting [1][4]. Group 1: Management and Auditor Responsibilities - The management of Haitan Water Group is responsible for preparing the accounting estimate change in accordance with relevant accounting standards and maintaining necessary internal controls to prevent material misstatements due to fraud or error [1][2]. - The auditor's responsibility is to provide an opinion on the accounting estimate change based on the audit evidence obtained, ensuring compliance with Chinese auditing standards [2]. Group 2: Details of the Accounting Estimate Change - The company has changed its accounting estimate for bad debt provisions on receivables, specifically treating national renewable energy subsidies as a separate category with a provision rate of 5%, reflecting the actual risk associated with these receivables [4][5]. - The change is motivated by the need to align the bad debt provision policy with the distinct credit risk characteristics of different receivables, particularly those related to government subsidies, which differ significantly from other customer credit risks [4][5]. Group 3: Impact of the Change - The adjustment in accounting estimates is expected to improve the accuracy of financial reporting and better reflect the company's financial position and operational results [4][5]. - Prior to the change, the company used an aging method for estimating expected credit losses, with rates varying from 5% for receivables within one year to 100% for those over three years [5].

Group 1 - The board of directors of Chongqing Meiansen Technology Co., Ltd. held its seventh meeting of the sixth session on August 11, 2025, with all seven directors present, including independent directors participating via remote voting [1][2] - The board approved the proposal for asset impairment provision and asset write-off, stating that the basis for this decision is sufficient and complies with relevant accounting standards, reflecting the company's asset status accurately [2] - The board also approved a change in accounting estimates, which aligns with the relevant provisions of accounting standards and better reflects the company's financial condition and operating results without affecting previously disclosed financial data [2]

Core Points - The company has not distributed cash dividends or bonus shares during the reporting period [3] - The company reported a total asset impairment provision of 23,140,292.63 yuan for the first half of 2025, which will reduce the total profit for the same period by the same amount [26][29] - The board of directors approved the asset impairment provision, confirming that the process was legal and the basis for the provision was sufficient [28][29] Company Overview - The company has not experienced any changes in its controlling shareholder or actual controller during the reporting period [5][6] - The company has completed the transfer of 33.75% equity in Chengdu Futures Company for a transaction price of 269.735 million yuan [7] - The company established Sichuan Ruisheng Vision Data Technology Co., Ltd. with a cash contribution of 3.4 million yuan, holding a 17% stake [9] Financial Data - The company’s board of directors approved the 2025 semi-annual report, which reflects the company's operational activities and financial status accurately [11] - The company has conducted a comprehensive review of its assets and identified impairment indicators, leading to the provision for asset impairment [20][22] - The impairment provisions include amounts for receivables, contract assets, and inventory, with specific amounts detailed for each category [23][24][25]