(b) Use of estimates

The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities at the date of the financial statements and reported amounts of revenues and expenses during the reporting period. Actual results may differ from these estimates. Changes in estimates are recorded in the period they are identified. Significant accounting estimates reflected in the Group’s consolidated financial statements primarily include but not limited to Significant accounting estimates reflected in the Group’s consolidated financial statements include the estimated cost or input measure method used to calculate the revenue recognized in the Group’s, allowance for doubtful accounts and allowance for deferred tax assets and uncertain tax position. Actual results could differ from these estimates.

Convenience translation

(d) Convenience translation

Translations of balances in the consolidated balance sheets, consolidated statements of operations and comprehensive income and consolidated statements of cash flows from RMB into United States dollar (“US$”) as of and for the Six Months Ended March 31, 2025 are solely for the convenience of the readers outside of the People’s Republic of China and were calculated at the rate of US$1.00 for RMB7.2567, representing the noon buying rate set forth in the H.10 statistical release of the U.S. Federal Reserve Board on March 31, 2025.

Cash, cash equivalents

(f) Cash, cash equivalents

Cash and cash equivalents consist of cash on hand, demand deposits and highly-liquid investments placed with banks, which are unrestricted as to withdrawal and use, and which have original maturities of three months or less.

Accounts receivable and allowance for doubtful accounts

(h) Accounts receivable and allowance for doubtful accounts

Accounts receivable mainly consist of amounts due from the Group’s customers, which are recorded net of allowance for doubtful accounts. The Group performs ongoing credit evaluations of its customers, and assesses allowance for doubtful accounts based on expected credit loss model on a portfolio basis. When specific customers are identified as no longer sharing the same risk profile as the current pool, they are removed from the pool and evaluated separately. Accounts receivable are written off when there is no reasonable expectation of recovery.

The Group elected to early adopt Accounting Standards Update (“ASU”) No. 2016-13, Financial Instruments — Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments using the modified retrospective transition method from January 1, 2020. The Group has developed a current expected credit losses (“CECL”) model for class of customers, including our related parties, with similar risk characteristics based on historical experience, credit quality of its customers, current economic conditions and supportable forecasts of future economic conditions that may affect customers’ ability to pay. The cumulative effect from the adoption as of January 1, 2020 was immaterial to the financial statements.

Deferred Offering Costs

(j) Deferred Offering Costs

Deferred offering costs consist of legal, accounting, underwriting fees and other costs incurred through the balance sheet date that are directly related to the IPO. These costs, together with the underwriting discounts and commissions, will be charged to permanent equity upon completion of the IPO. Should the IPO prove to be unsuccessful, these deferred costs, as well as additional expenses to be incurred, will be charged to expenses. As of September 30, 2024 and March 31, 2025, the Company has incurred RMB4,933,304 and RMB6,102,442 of deferred offering costs, respectively.

Taxation

(l) Taxation

Current income taxes are recorded in accordance with the regulations of the relevant tax jurisdiction. The Group accounts for income taxes under the asset and liability method in accordance with ASC 740, Income Tax. Under this method, deferred tax assets and liabilities are recognized for the tax consequences attributable to differences between carrying amounts of existing assets and liabilities in the financial statements and their respective tax basis, and operating loss carry-forwards. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect on deferred taxes of a change in tax rates is recognized in the consolidated statements of comprehensive loss in the period of change. Valuation allowances are established when necessary to reduce the amount of deferred tax assets if it is considered more likely than not that amount of the deferred tax assets will not be realized.

The Group records liabilities related to uncertain tax positions when, despite the Group’s belief that the Group’s tax return positions are supportable, the Group believes that it is more likely than not that those positions may not be fully sustained upon review by tax authorities. Accrued interest and penalties related to unrecognized tax benefits are classified as income tax expense. The Group did not recognize any uncertain tax positions as of March 31, 2025.

Income per share

(n) Income per share

Basic income per share is computed by dividing net income attributable to the holders of shares by the weighted average number of shares outstanding during the year.

Diluted earnings per share reflect the potential dilution that could occur if securities or other contracts to issue ordinary shares were exercised or converted into ordinary shares.