On 25 January 2008, Siyakhuphuka Investment Holdings (the appellant) submitted an unsolicited proposal to Transnet National Ports Authority (the second respondent, a division of Transnet SOC - the first respondent) for developing a container operation at the Port of Richards Bay. The proposal was developed in collaboration with Maersk shipping line and aimed to address development needs in Zululand by creating container shipping connections to global markets. On 30 April 2009, the respondents rejected the proposal. The appellant filed a complaint with the Ports Regulator alleging that the second respondent, operating as a division of the first respondent with a mandate to increase market share, had lost its ability to fairly determine applications and would be competing with the appellant. The Regulator ruled on 15 July 2015 that the proposal was outdated and did not meet requirements for unsolicited bids under the National Ports Act. On 2 April 2014, while the Regulator complaint was pending, the appellant filed a prohibited practice complaint with the Competition Commission alleging: (1) that the second respondent's lack of independence from the first respondent violated section 8 of the Competition Act as an abuse of dominance, and (2) that the respondents rejected the appellant's proposal but then provided it to Transnet Port Terminals (TPT), the appellant's direct competitor, which implemented the concept despite previously stating Richards Bay terminal was unsuitable for containers. The Commission issued a notice of non-referral on 14 September 2015. The appellant self-referred the matter to the Competition Tribunal on 10 October 2015. The respondents raised two points in limine: (1) that the issues were the same as those in review proceedings before the Durban High Court regarding the Regulator's decision, and the matter was fundamentally one of public law over which the Tribunal lacked jurisdiction; and (2) that claims regarding the subsequent announcement of container terminal development did not form part of the original complaint and the Tribunal lacked jurisdiction to consider them. The Tribunal upheld both points in limine on 17 October 2017 and dismissed the complaint for lack of jurisdiction, relying on AEC Electronics v Department of Minerals and Energy, finding that the second respondent was exercising public power when considering concessions.