SA Mohair Brokers Ltd (appellant) and BKB Ltd (sixth respondent) were competitors in the mohair industry. The appellant wished to dispose of its 66% shareholding in its operating company CMW Operations to Oos-Vrystaat through a special resolution under s 228 of the Companies Act 61 of 1973. BKB, preferring to keep the appellant as its competitor rather than Oos-Vrystaat, devised a plan to defeat this resolution by purchasing shares from some of the appellant's shareholders and obtaining proxies from them to vote against the special resolution. The sellers completed four documents: a sale agreement, a request for share certificates, a blank securities transfer form, and a blank proxy form. BKB paid the sellers in full. The proxies were lodged with the appellant prior to the shareholders' meeting on 4 December 2009. However, the chairman of the meeting, acting on legal advice, ruled that the proxies were invalid and refused the proxy holders permission to speak or vote at the meeting. This advice was based on article 15.2 of the appellant's articles of association, which required prior approval of the directors for any sale or transfer of shares. The chairman believed the sale agreements were null and void, and therefore the proxies, being part of these void agreements, were also void.