to protect or reduce the risk of the investment value?

https://www.google.com/search?source=hp&ei=...i10.4OpX640xgrc

I think that depends...
if new in investment...better take the hedged version...lesser risk.
if new & if the investment value in relation to the net asset is larger than 10%....better take the hedged version....lesser risk

non hedged is a double edged sword.....can increase or reduce the investment value due to the currencies fluctuations factor + the daily funds NAV movement

Trustee Fee
The annual trustee fee is a fee paid to the Trustee for the custodial management and administration of a Fund’s assets such as transaction settlement, custody and administration costs amongst others.

this fees of 0.08% of NAV or subject to a minimum fee of RM18,000 per annum.
will be charged to the individual fund by the trustee service....
this amount will be pro rated almost daily and it will already be deducted and reflected in the daily NAV value.

the investor of Unit trust cannot see it

yes, what u want to know?