Home | Competition Appeal Tribunal The United Kingdom Competition Appeal Tribunal is a specialist judicial body with cross-disciplinary expertise in law, economics, business and accountancy whose function is to hear and decide cases involving competition or economic regulatory issues. Diary Watch now Trial LIVESTREAM 10 Mar 2026 | 10:30am (time estimate of 10 weeks) 2026-04-16T06:30:00+0100 2026-05-08T18:00:00+0100 1527/7/7/22 Alex Neill Class Representative Limited v Sony Interactive Entertainment Europe Limited; Sony Interactive Entertainment Network Europe Limited; and Sony Interactive Entertainment UK Limited Watch now Case management conference LIVESTREAM 23 Apr 2026 | 10:30am (time estimate of one day) 2026-04-23T06:30:00+0100 2026-04-23T18:00:00+0100 1745/5/7/25 (T) Roadget Business Pte. Ltd. and Shein Distribution UK Limited v Whaleco UK Limited Watch now Case management conference (Trial 3) LIVESTREAM 24 Apr 2026 | 10:30am (time estimate of one day) 2026-04-24T06:30:00+0100 2026-04-24T18:00:00+0100 1517/11/7/22 (UM) Merchant Interchange Fee Umbrella Proceedings Watch now Trial LIVESTREAM 28 April 2026 | 10.30am (time estimate of two days with one day in reserve) 2026-04-28T06:30:00+0100 2026-04-30T18:00:00+0100 1754/12/13/25 Zenobē Energy Limited v Gas and Electricity Markets Authority 1769/12/13/26 Zenobē Energy Limited v Gas and Electricity Markets Authority Watch now Case Management Conference LIVESTREAM 6 May 2026 | 10.30am (time estimate of one day) 2026-05-06T08:00:00+0100 2026-05-06T18:00:00+0100 1601/7/7/23 Dr Sean Ennis v Apple Inc and Others Watch now Case management conference LIVESTREAM 12 May 2026 | 10:30am (time estimate of two days) 2026-05-12T08:00:00+0100 2026-05-13T18:00:00+0100 1746/5/7/25 (T) The Secretary of State for Health and Social Care & Another v Servier Laboratories & Others 1747/5/7/25 (T) The Welsh Ministers & Others v Servier Laboratories Limited & Others 1748/5/7/25 (T) The Scottish Ministers & Others v Servier Laboratories Limited & Others Watch now Hearing (CSAO Application) LIVESTREAM 18 May 2026 | 10:30am (time estimate of one day) 2026-05-18T08:00:00+0100 2026-05-18T18:00:00+0100 1382/7/7/21 Consumers' Association v Qualcomm Incorporated Watch now Case management conference LIVESTREAM 21 May 2026 | 10:30am (time estimate of one day) 2026-05-21T08:00:00+0100 2026-05-21T18:00:00+0100 1572/7/7/22; 1582/7/7/23 Ad Tech Collective Action LLP v Alphabet Inc. & Others Watch now Pre-Trial Review LIVESTREAM 21 May 2026 | 10:30am 2026-05-21T08:00:00+0100 2026-05-21T18:00:00+0100 1424/5/7/21 (T) Kelkoo.com (UK) Limited & Others v Google UK Limited & Others 1589/5/7/23 (T) Infederation Ltd v Google Inc and Others 1596/5/7/23 Whitewater Capital Limited v Google LLC and Alphabet Inc. 1636/5/7/24 (T) Skimbit Limited v Google UK Limited & Others Watch now Case Management Conference LIVESTREAM 2 June 2026 | 10:30am (time estimate of one day) 2026-06-02T08:00:00+0100 2026-06-02T18:00:00+0100 1595/7/7/23 Robert Hammond v Amazon.com, Inc. & Others 1644/7/7/24 Professor Andreas Stephan v Amazon.com Inc. & Others Latest Documents New 1634/7/7/24 Mr David Alexander de Horne Rowntree v (1) the Performing Right Society Limited and (2) PRS For Music Limited Ruling (Interest on Costs) 21/04/2026 [2026] CAT 33 Summary New 1408/7/7/21 Elizabeth Helen Coll v Alphabet Inc. and Others Reasoned Order (Updated Transaction Data) 21/04/2026 New 1304/7/7/19 Justin Gutmann v First MTR South Western Trains Limited and Another 1305/7/7/19 Justin Gutmann v London & South Eastern Railway Limited Order of the Chair (Dismissal and costs - SWR) 21/04/2026 New 1305/7/7/19 Justin Gutmann v London & South Eastern Railway Limited Order of the Chair (Dismissal and costs - SE and GTR) 21/04/2026 New 1696/7/7/24 Dr Maria Luisa Stasi v Microsoft Corporation, Microsoft Limited & Microsoft Ireland Operations Limited Judgment (CPO Application) 21/04/2026 [2026] CAT 34 Summary Announcements Response to the Tribunal’s consultation on the conflict rule 16/12/2025 On 3 November 2025, the Tribunal published a consultation document on the rule regarding conflicts of interest in relation to the appointment of Chairs and Ordinary Members. The consultation closed on 28 November and the Tribunal’s response is published today. Practice Direction: Expert Evidence 02/12/2025 The Tribunal has published a Practice Direction concerning expert evidence. Practice Direction: Skeleton arguments and other documents - formatting and page lengths 26/11/2025 The Tribunal has published a Practice Direction concerning the formatting and page lengths of skeleton arguments and other documents. Consultation on conflicts rule 03/11/2025 The President of the Competition Appeal Tribunal (“CAT”) is consulting on potential changes to the working practices of the CAT in relation to the approach adopted in relation to the selection of Chairs and Ordinary Members. The aim is to inform the future recruitment of members or deployment of judges to the CAT. The detail of the proposed changes is set out in the consultation document published today. The document sets out several questions on which the President would welcome views. Responses should be sent to info@catribunal.org.uk by Friday 28 November 2025.