v3.25.3
Related Party Balances and Transactions (Details) - USD ($)
12 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Related Party Balance and Transactions [Line Items]    
Accounts Receivable, after Allowance for Credit Loss $ 396,744 $ 267,529
Invest amount in trading business $ 4,500,000  
Percentage of profits 90.00%  
Advance amount   3,303,424
Advance returned   3,200,000
Zhejiang Jinbang Fuel Energy Co., Ltd [Member]    
Related Party Balance and Transactions [Line Items]    
Equity method investment ownership percentage 30.00%  
Shanghai Baoyin Industrial Co., Ltd [Member]    
Related Party Balance and Transactions [Line Items]    
Equity method investment ownership percentage 30.00%  
LSM trading Ltd [Member]    
Related Party Balance and Transactions [Line Items]    
Equity method investment ownership percentage 40.00%  
Mr. Wang Qinggang [Member]    
Related Party Balance and Transactions [Line Items]    
Equity method investment ownership percentage 30.00%  
Zhejiang Jinbang Fuel Energy Co., Ltd [Member]    
Related Party Balance and Transactions [Line Items]    
Due from related parties $ 388,496 382,949
Accounts Receivable, after Allowance for Credit Loss 388,496 382,949
Shanghai Baoyin Industrial Co., Ltd [Member]    
Related Party Balance and Transactions [Line Items]    
Due from related parties 1,084,793 1,066,003
LSM trading Ltd [Member]    
Related Party Balance and Transactions [Line Items]    
Due from related parties 570,000
Rich Trading Co. Ltd [Member]    
Related Party Balance and Transactions [Line Items]    
Due from related parties 103,424
Qinggang Wang [Member]    
Related Party Balance and Transactions [Line Items]    
Due from related parties 26,373 25,997
Zhejiang Jinbang [Member]    
Related Party Balance and Transactions [Line Items]    
Owed amount $ 497,857 $ 199,034