Subordinate letter of guarantee is a kind of guarantee tool, which is the guarantee provided by the guarantor for the debtor to the creditor. The characteristic of subordinate guarantee is that the guarantor not only provides guarantee for the debtor, but also provides guarantee for the guarantor.
In the subordinate letter of guarantee, the guarantor's guarantee responsibility is not independent, but related to the guarantor's guarantee responsibility. Therefore, if the guarantor's guarantee is flawed, it may affect the guarantor's guarantee responsibility.