What you want to ask is who has the green copy of BYD's financial loan? Banks or financial institutions. According to the report of Inquiry Financial News Agency, after paying off the loan, the owner can collect the green copy from the business outlets of banks or financial institutions, or choose to mail the green copy to the owner. Therefore, the green book of BYD's financial loans is in banks or financial institutions. The Green Paper refers to the vehicle registration certificate, which is one of the important documents of vehicles. During the loan period, the vehicle registration certificate is usually detained by banks or financial institutions as collateral for the loan.