Northam Platinum Holdings Limited v Impala Platinum Holdings Limited and Others

Impala Platinum Holdings Limited sought to acquire control over Royal Bafokeng Platinum Limited by increasing its shareholding beyond 50%. Northam Platinum Holdings Limited, a significant shareholder in the target firm and a mid-tier participant in the platinum group metals (PGM) value chain, applied to intervene in the Competition Tribunal’s large merger proceedings. The Competition Tribunal granted Northam limited participation rights under section 53(c) of the Competition Act 89 of 1998, restricting its role to written and oral submissions on certain vertical effects, but denying procedural rights such as discovery, access to the Commission’s merger record, the ability to subpoena documents or witnesses, and to adduce and test evidence. Northam appealed and reviewed the Tribunal’s decision, arguing that the restriction of procedural rights rendered its participation ineffective and denied it a fair hearing, particularly given that the Tribunal had identified credible vertical theories of harm relating to junior miners.

The appeal and review succeeded. The Competition Appeal Court set aside the restrictive aspects of the Tribunal’s order and held that Northam was entitled to broader procedural participation rights consistent with its status as a participant in the merger proceedings.

The case clarifies the distinction between an intervening participant and an amicus curiae in South African competition law, confirming that participant status carries substantive procedural rights. It reinforces the inquisitorial nature of merger proceedings and limits the Tribunal’s ability to grant participation in name only. The judgment is significant for ensuring fairness, transparency, and effective participation in large merger reviews.