| Schedule of outstanding balance of bank loans |
| | | | | | | | | | | | | | | | Loan | | Loan | | | | | | Effective | | | | commencement | | maturity | | Loan | | Loan | | interest | | | | date | | date | | amount in | | amount in | | rate | | As of June 30, 2026 | | | | | | | | RMB | | US$ | | | | Short-term bank loans | | | | | | | | | | | | | | Bank of China (a) | | | August 21, 2025 | | | August 20, 2026 | | 5,000,000 | | 736,909 | | 3.35 | % | Industrial and Commercial Bank of China (b) | | | March 23, 2026 | | | March 22, 2027 | | 3,740,000 | | 551,208 | | 3.00 | % | Agricultural Bank of China (c) | | | December 26, 2025 | | | December 25, 2026 | | 3,500,000 | | 515,836 | | 3.25 | % | Total short-term bank loans | | | | | | | | 12,240,000 | | 1,803,953 | | | | | | | | | | | | | | | | | | Long-term bank loans | | | | | | | | | | | | | | China Construction Bank (d) | | | March 21, 2025 | | | March 21, 2028 | | 990,000 | | 145,908 | | 3.05 | % |
| (a) | On August 21, 2025, Kebiao Technology obtained an RMB5,000,000 unsecured loan from Bank of China for a term of twelve months, with Mr. Yuan Li as a co-borrower, at a fixed annual interest rate of 3.35% per annum. The loan was fully repaid on August 18, 2026. |
| (b) | On March 23, 2026, Kebiao Technology obtained an RMB3,740,000 unsecured loan from Industrial and Commercial Bank of China for a term of twelve months, at a fixed annual interest rate of 3.00% per annum. |
| (c) | On December 26, 2025, Kebiao Technology obtained an RMB3,500,000 loan from Agricultural Bank of China for a term of twelve months, with Mr. Yuan Li as the guarantor, at a fixed annual interest rate of 3.25% per annum. |
| (d) | On March 21, 2025, Kebiao Technology obtained an RMB1,000,000 unsecured loan from China Construction Bank for a term of three years, with Mr. Yuan Li as a co-borrower, at a fixed interest rate of 3.05% per annum. The Company and Mr. Yuan Li are jointly and severally liable for the repayment of the loan. Kebiao Technology repaid RMB10,000 of loan principal for the six months ended June 30, 2026, and the outstanding principal balance was RMB990,000 as of June 30, 2026. |
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