7(1)Subject to paragraphs 9 to 11 below, in the case of a qualifying disposal of shares or securities of a trading company which is not a holding company ,—
(a)the gains which on the disposal accrue to the individual or, as the case may be, the trustees shall be aggregated, and
(b)of the appropriate proportion of the aggregated gains, only so much as exceeds the amount available for relief shall constitute chargeable gains (but not so as to affect liability in respect of gains representing the balance of the aggregated gains).
(2)For the purposes of sub-paragraph (1)(b) above, " the appropriate proportion " is that which that part of the value of the company's chargeable assets immediately before the end of the qualifying period which is attributable to the value of the company's chargeable business assets bears to the whole of that value, but, in the case of a company which has no chargeable assets, " the appropriate proportion " is the whole.
(3)For the purposes of this paragraph, every asset is a chargeable asset except one, on the disposal of which by the company immediately before the end of the qualifying period, no gain accruing to the company would be a chargeable gain.