Subject to the terms of any trust or endowment, any money held by or on behalf of the Board and available for investment shall be invested in any securities in which trust funds may be invested by trustees in accordance with the Trustee Act 1956, or in accordance with any other statutory authority, or in such other manner as the Board, with the approval of the Minister of Finance, may determine:
provided that, notwithstanding any rule of law or equity to the contrary, the Board shall not be obliged to convert any securities which are the subject of a gift to the Board and which are not securities in which the Board may invest money pursuant to this section.