The binding legal principles established are: (1) Section 3(1) of the Competition Act 89 of 1998 applies extraterritorially to all economic activity having an effect within South Africa, using a test of direct, foreseeable and substantial consequences within the Republic. (2) The common law requirement of personal jurisdiction must be developed to align with the objectives and scope of the Competition Act, particularly in the context of economic globalization. (3) Personal jurisdiction over peregrini in competition matters can be established through adequate connecting factors between the parties, the alleged conduct, and South African jurisdiction, without necessarily requiring physical presence in South Africa, submission to jurisdiction, or attachment of property. (4) In cases involving alleged cartels or concerted practices between peregrini and local parties that have substantial effects in South Africa, the adequate connecting factors may establish both subject matter and personal jurisdiction. (5) The Competition Tribunal cannot issue any order, including a declaratory order, against parties over whom it lacks jurisdiction. (6) A cross-appeal is legally equivalent to an appeal and can properly be noted against respondents who did not themselves appeal the original order.