1. Calculation method: The "weighted average method" is adopted for the bond valuation of Shanghai Stock Exchange. The bond valuation of Shenzhen Stock Exchange adopts "fitting curve method".
2. Valuation basis: Shanghai Stock Exchange makes adjustments according to the issuer's credit rating, market liquidity and other factors to reflect the actual market value of bonds. The Shenzhen Stock Exchange will make adjustments according to the issuer's credit rating, market liquidity and other factors to reflect the actual market value of bonds.