5. Payment by Castries Corporation of interest and sinking fund
The sums necessary to extinguish in 40 years the amount with interest payable under section 4 shall, and whenever the same may be required, be paid by the Castries Corporation into the Treasury. However, the interest charged shall not exceed the interest which may be payable in respect of any loan raised by Saint Lucia, on the security of the general revenue, wholly or partly, to cover the cost of the Cemetery, and shall not in any case exceed 4% per year.