7. (1) Subject to the rules and regulations, the general direction and superintendence of the affairs and business of the Corporation shall vest in a Board of Directors which may exercise all powers and do all acts and things which may be exercised or done by the Corporation. (2) The Board shall act on commercial considerations having due regard to public interest generally. (3) In discharging its functions the Board shall be guided by such instructions on questions of policy involving national interest as may be given to it from time to time by the Government.