1. The high cost of credit enhancement tools will increase the financing cost of the whole bond collection.
2. The use of credit enhancement tools will affect the priority of the original creditor and weaken its return to some extent.
3. The effect of credit enhancement tools is influenced by the credit rating and solvency of insurance companies. If something goes wrong with the insurance company, the credit rating of the whole bond collection will be lowered, thus affecting the interests of investors.