Title to all assets of the common trust fund shall, at all times, be vested in the bank or trust company, as trustee of the common trust fund, and such assets shall be deemed to be held by the bank or trust company, as such trustee. The bank or trust company may, however, hold any of the assets of a common trust fund in the name of a nominee, provided the records of such common trust fund clearly show the ownership of the asset to be in the bank or trust company, as trustee of the common trust fund, and the facts regarding its holding. The bank or trust company shall have the exclusive management and control of each common trust fund administered by it, and the sole right at any time to sell, convert, reinvest, exchange, transfer or otherwise change or dispose of the assets comprising the fund. The bank or trust company shall, at least once each year, cause an audit of each common trust fund administered by it to be made by a certified public accountant or a public accountant registered in the State of Illinois. A copy of each such audit shall be available at the principal office of the bank or trust company and any affiliate thereof during all regular business hours, for inspection by any person having an interest in a trust, any funds of which are invested in a participation in such common trust fund, and upon reasonable request a copy of any such audit shall be furnished to such person. The reasonable expense of any such audit made by an independent certified public accountant or by an independent public accountant registered in the State of Illinois may be charged to the principal or income of the common trust fund, or partly to each, as the bank or trust company may determine. The bank or trust company may charge a fee for the management of any common trust fund administered by it, and such fee may be charged in whole or in part against the common trust fund, provided that the fractional part of such fee proportionate to the interest of each participant shall not, when added to any other compensations charged by the bank or trust company or any affiliate thereof to the participant, exceed the total amount of compensations which would have been charged to said participant if no assets of said participant had been invested in participations in the fund. If, however, the common trust is invested in a mutual fund for which the bank or trust company or an affiliate provides services and receives compensation, then the total compensation paid by a participant to the bank or trust company and its affiliates, directly or indirectly, including any common trust fund fees, mutual fees, advisory fees, and management fees, must be reasonable. The bank or trust company may reimburse itself out of the common trust fund for such reasonable expense incurred by it in the administration of such fund as would have been chargeable to the respective participating fiduciary accounts, if incurred in the separate administration of those accounts.