For the purposes of this Division, where a company buys a share in itself from a shareholder in the company:
(a) the purchase is a buy - back; and
(b) the shareholder is the seller; and
(c) if:
(i) the share is listed for quotation in the official list of a stock exchange in Australia or elsewhere; and
(ii) the buy - back is made in the ordinary course of trading on that stock exchange;
the buy - back is an on - market purchase; and
(d) if the buy - back is not covered by paragraph (c)--the buy - back is an off - market purchase.