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Concentration and risks
 6 Months Ended
Mar. 31, 2025
Risks and Uncertainties [Abstract]  
Concentration and risks

 

4. Concentration and risks

 

(a) Concentration of credit risk

 

Assets that potentially subject the Group to significant concentrations of credit risk primarily consist of cash and cash equivalents, restricted cash, accounts receivable and amounts due from related parties. The maximum exposure of such assets to credit risk is their carrying amounts as of the balance sheet dates. All of the Group’s cash and cash equivalents and restricted cash are held with financial institutions that Group’s management believes to be high credit quality. The Group periodically evaluates the creditworthiness of the existing customers in determining an allowance for doubtful accounts primarily based upon the age of the receivables and factors surrounding the credit risk of specific customers.

 

(b) Concentration of customers:

 

The following customers accounted for 10% or more of revenue for the six months ended March 31, 2024 and 2025:

 

   2024   2025 
   Six Months Ended March 31, 
   2024   2025 
   RMB   RMB 
Customer A   43,320,274    42,257,767 
Customer B   3,476,508    10,051,313 
Customer C   16,651,004    34,440,743 

 

The following customers accounted for 10% or more of the Group’s accounts receivable and amounts due from related parties as of September 30, 2024 and March 31, 2025:

 

   September 30, 2024   March 31, 2025 
  

As of

September 30, 2024		  

As of

March 31, 2025		 
   RMB   RMB 
Customer A   4,525,495    3,826,469 
Customer B   7,055,869    6,706,071 
Customer C   1,748,863    1,748,863 
Customer D   -*    3,177,983 

 

 

(c) Concentration of suppliers

 

Below suppliers represent more than 10% of the Group’s total purchases for the six months ended March 31, 2024 and 2025:

 

   2024   2025 
   Six Months Ended March 31, 
   2024   2025 
   RMB   RMB 
Supplier A   -*    18,600,197 
Supplier B   -*    10,377,124 
Supplier C   -*    7,641,441 

 

*Represents less than 10%

 

(d) Foreign currency risk

 

Currency convertibility risk

 

The RMB is not a freely convertible currency. The State Administration for Foreign Exchange, under the authority of the People’s Bank of China, regulates the conversion of RMB into other currencies. The value of the RMB is subject to changes in central government policies, international economic and political developments affecting supply and demand in the China Foreign Exchange Trading System market. As of September 30, 2024 and March 31, 2025, the Group has cash and cash equivalents and time deposits that are denominated in US$, totaling US$3,513 and, US$3,514 as of September 30, 2024 and March 31, 2025, respectively.