Apart from transaction fees, there are ongoing fees (Deducted from the fund investment account):

Management fees: The fee paid to the fund manager for the fund management service

Custodian fee: The fee paid to the custodian for providing a custody service

Performance fee (if any): The fee paid to the fund manager for generating a positive return

Administration fee: Expenses related to fund administration and operation of the fund

(Source: IFEC – the Chin family – ifec. org. hk)