Sinking Fund.
Section 27
SEC. 27. Sinking Fund.—A sinking fund shall be established in the National Treasury in such manner that the total annual contributions thereto, accrued at such rate of interest as shall be determined by the Secretary of Finance, shall be sufficient to redeem at maturity the bonds issued under this Act. Said fund shall be under the custody of the Central Bank of the Philippines such invest the same in such manner as the Monetary Board may approve, charging all expenses of such investments to said sinking fund and crediting the same with the interest on investment and other income belonging to it.