The first and second appellants (Pepkor Holdings Limited and Shoprite Holdings Limited), respectively the first and third largest household furniture retailers in South Africa, proposed a merger. The respondent, Lewis Stores (Pty) Ltd, the second largest national household furniture retailer, applied to the Competition Tribunal to intervene in the merger proceedings under s 53(c)(v) of the Competition Act 89 of 1998 and Tribunal Rule 46. The Competition Commission had recommended conditional approval of the merger. Lewis sought intervention claiming it possessed unique insights and material knowledge of the furniture retail industry that would assist the Tribunal in assessing the merger. The Tribunal granted Lewis extensive intervention rights on 23 July 2025, including full discovery, rights to cross-examine, adduce evidence, and participate in all aspects of the s 12A inquiry regarding market definition, competition effects, and remedies. The merging parties appealed this decision.