Gold Fields Limited sought to prevent Harmony Gold Mining Company Limited from implementing an announced takeover transaction. Harmony publicly announced a two-stage transaction consisting of an 'early settlement offer' to acquire up to 34.9% of Gold Fields’ shares, followed by a subsequent offer aimed at acquiring the remaining shares, subject to regulatory approvals. Gold Fields was simultaneously pursuing a separate transaction with IAMGold Corporation, which was opposed by a major shareholder, Norilsk. Gold Fields contended that the early settlement offer formed part of a single notifiable large merger and that its implementation before competition approval would contravene section 13A of the Competition Act 89 of 1998. The Competition Tribunal dismissed Gold Fields’ urgent application for an interdict, finding that the early settlement offer alone did not amount to acquisition of control. Gold Fields appealed to the Competition Appeal Court.