All receipts designated for the Grant Fund shall be placed in the Grant Fund held by the Department and administered by the Trust, including: Money appropriated by the State to the Grant Fund; Premiums, fees, and payments on reimbursement of grants, where required; Income from investments that the State Treasurer, on instruction of the Department, makes for the Department under this subtitle; and Any other money made available to the Grant Fund. Any unspent money in the Grant Fund at the end of the fiscal year shall remain in the Grant Fund and may not revert to the General Fund of the State.