debt financing instruments refer to the securities issued by non-financial enterprises with legal personality in the inter-bank bond market, and agreed to repay the principal and interest within a certain period of time. This product is a direct financing product, which is an active debt tool for enterprises and provides a way for enterprises to enter the bond market for financing. It is issued to institutional investors in the inter-bank bond market, including banks, securities companies, fund companies, trust companies and other financial institutions; Debt financing instruments can be traded in the inter-bank bond market on the next working day after the issuance. Debt financing instruments include short-term financing instruments (CP), ultra-short-term financing instruments (SCP), medium-term notes (MTN), collective notes for small and medium-sized non-financial enterprises (SMECN) and non-public directional debt financing instruments (PPN). Debt financing instruments refer to securities issued by non-financial enterprises with legal personality in the inter-bank bond market and agreed to repay the principal and interest within a certain period of time. This product is a direct financing product, which is an active debt tool for enterprises and provides a way for enterprises to enter the bond market for financing. It is issued to institutional investors in the inter-bank bond market, including banks, securities companies, fund companies, trust companies and other financial institutions; Debt financing instruments can be traded in the inter-bank bond market on the next working day after the issuance. Debt financing instruments include short-term financing instruments (CP), ultra-short-term financing instruments (SCP), medium-term notes (MTN), collective notes for small and medium-sized non-financial enterprises (SMECN) and non-public directional debt financing instruments (PPN).