To apply for Bank of China loan settlement certificate, you need to provide the following materials:

1. Proof of identity: the applicant’s valid identity document, such as ID card.

2. Loan contract: The loan contract is a legal document signed by the borrower and the bank. It will contain information such as the loan amount, interest rate, and repayment method.

3. Repayment records: Applicants need to provide repayment records in the most recent period to prove that they have repaid on time in accordance with the requirements of the loan contract.

Read the relevant terms and agreements carefully when applying for a loan, and keep all relevant documents properly.