No. 21. Income Tax. 1967. (b) the fund has for its sole purpose the pro- vision of annuities for all or any of the fol- lowing persons in the events respectively specified, that is to say, for persons employed in the trade or undertaking, either on retire- ment at a specified age or on becoming in- capacitated at an earlier age, or for the widows, children or dependents of persons who are or have been so employed, on the death of those persons; and (c) the employer in the trade or undertaking is a contributor to the fund; and (d) the fund is recognized by the employer and employed persons in the trade or under- taking: Provided that the Comptroller may, if he_ thinks fit and subject to such conditions, if any, as he thinks proper to atta.,h to the approval, approve a fund, or any part of a fund as a superannuation fund for the purposes of this section- (a) notwithstanding that the rules of the fund provide for the return in certain contin- gencies of contributions paid to the fund; or (b) if the main purpose of the fund is the pro- vision of such annuities as aforesaid, not- withstanding that such provision is not its sole purpose; or (c) notwithstanding that the trade or undertaking in connection with which the fund is estab- lished is carried on only partly in the Colony and by a person not residing therein. (3) Where such fund is approved, then- (a) any income of such fund arising in the terri- tory shall be exempt; (b) any contributions to the fund by the employer shall be allowed as prescribed.