The interest rate of your 400,000 five-year deposit is currently 5.5%, and the average interest rate for the next year is 22,000.
After the two spreads of 22000- 19466.25=2533.75, with the decrease of mortgage interest, the spread will increase a little but not too much.
Isn't your provident fund used to pay off the mortgage? Can you use it like this? )
The longer the time deposit, the higher the interest rate! Five years at most now.