4(1)The shares acquired must meet the following requirements.U.K.
(2)They must be ordinary shares that are fully paid-up and not redeemable.
(3)They must be—
(a)shares of a class listed on a recognised stock exchange, or
(b)shares in a company that is not under the control of another company, or
(c)shares in a company that is under the control of a company (other than a close company or a company that if resident in the United Kingdom would be a close company) whose shares are listed on a recognised stock exchange.