1. Small pricing base: The pricing base of three-year LPR is relatively small, because the term of long-term loans is relatively long and the loan interest rate is relatively high, resulting in relatively low market demand for long-term loans.

2. The pricing is difficult to predict: the pricing of three-year LPR needs to refer to the long-term loan interest rate, which is difficult to predict accurately due to many factors such as economic situation, inflation and monetary policy.