Bank of China loan contract number usually starts with two digits after the year.

The mortgage contract number of China Bank is the loan account number of Bank of China, 12 digits. You can confirm the loan account number through your loan voucher, repayment plan, loan voucher and other materials. If you really can't find the mortgage contract number you need in the above materials, you can also go to any branch of China Bank and print the repayment details or repayment plan through the smart counter, which records your loan account number.