v3.26.1
Bank borrowings (Details Narrative)
6 Months Ended
Jun. 30, 2026
USD ($)
Jun. 30, 2026
CNY (¥)
Jun. 30, 2026
CNY (¥)
Dec. 31, 2025
CNY (¥)
Bank Borrowings        
Banking borrowings $ 4,404,704   ¥ 30,000,000 ¥ 30,000,000
Banking borrowings received 3,670,587 ¥ 25,000,000    
Repaid banking borrowings $ 3,670,587 ¥ 25,000,000