Factual and Procedural Background
This appeal concerns follow-on proceedings brought by public healthcare bodies ("the Claimants") against pharmaceutical companies ("the Defendants" or "Appellants") who were found to have engaged in unlawful anti-competitive agreements relating to the pricing of the drug citalopram. The European Commission issued a decision in June 2013 ("the Decision") finding infringements of Article 101 TFEU, upheld by the European Court of Justice in March 2021, which imposed fines on the Defendants. The Claimants allege that these unlawful agreements inflated prices paid by the public healthcare system and have brought claims in the Competition Appeal Tribunal ("CAT") seeking damages exceeding £500 million.
Initially, the Claimants issued stand-alone proceedings in the High Court in 2019, which required proving breach, causation, and damage. These proceedings were stayed pending the EU appellate process. After the appeals were dismissed, by consent, the High Court proceedings were transferred to the CAT under section 16 Enterprise Act 2002 to be pursued as follow-on claims, where breach is conclusively established by the Decision and only causation and damage remain live issues.
The Claimants filed a Claim Form in the CAT in March 2023 within the two-year limitation period that runs from the date the Decision became final. The Defendants contend that the transfer did not constitute a new claim in the CAT but a continuation of the High Court proceedings, which are time-barred under the Limitation Act 1980, and thus the CAT proceedings are also time-barred. They further argue that the Claimants are estopped from denying this by the terms of the Transfer Order.
The CAT rejected the Defendants' limitation and estoppel defences in a judgment dated 21 June 2024 and granted permission to appeal on the limitation issue, which is novel and uncertain in light of prior authority.
Legal Issues Presented
- Whether the limitation period applicable to the transferred proceedings is that under the Competition Appeal Tribunal Rules 2015 (applying a two-year period from the date the infringement decision becomes final) or the Limitation Act 1980 (applying a six-year period from the accrual of the cause of action), given the transfer from the High Court to the CAT.
- Whether the Claimants are contractually estopped by the terms of the Transfer Order from asserting that their claim is not time-barred under the CAT Rules.
- Whether the claim against a newly joined 12th Defendant, added after transfer and within the limitation period, is valid despite the limitation arguments concerning the original Defendants.
Arguments of the Parties
Appellants' Arguments
- The claim before the CAT is a continuation of the stand-alone High Court proceedings commenced in 2019, not a new claim made in the CAT under section 47A CA 1998.
- Accordingly, the Limitation Act 1980 applies, and the claim is time-barred because the cause of action accrued more than six years before 2019, as clarified in Gemalto Holdings BV v Infineon Technologies AG.
- The CAT Rules 2015, particularly Rule 119 and Rule 31, do not apply to transferred claims but only to claims originally commenced in the CAT.
- The Transfer Order expressly preserved the Defendants' accrued limitation rights, creating a contractual estoppel preventing the Claimants from relying on the CAT Rules to argue the claim is in time.
- The judgment in Sainsbury's Supermarkets Ltd v Mastercard Inc supports the position that the CAT Rules do not apply to transferred claims.
- Allowing the CAT Rules to apply would undermine Parliamentary intent to preserve accrued limitation rights under the Limitation Act and create arbitrary and illogical consequences.
Respondents' (Claimants') Arguments
- The filing of the Claim Form in the CAT under Rule 30 constitutes making a new, valid claim in the CAT, triggering the two-year limitation period under the CAT Rules.
- The Rules are comprehensive, self-contained, and forward-looking, governing proceedings in the CAT only, and cannot be overridden by procedural history or parties’ subjective understanding.
- The Transfer Order contemplated and required the Claimants to file a Claim Form in the CAT, initiating fresh proceedings distinct from the High Court claim.
- The Defendants had no accrued right to defeat a claim that was properly brought in the CAT within the CAT Rules' limitation period.
- The contractual estoppel argument fails because the Transfer Order preserved accrued rights only as they existed in the High Court proceedings, not rights to defeat a new claim properly commenced in the CAT.
- The claim against the 12th Defendant, joined after transfer and within the limitation period, is a separate, valid follow-on claim under section 47A CA 1998.
Table of Precedents Cited
| Precedent |
Rule or Principle Cited For |
Application by the Court |
| Gemalto Holdings BV v Infineon Technologies AG [2022] EWCA Civ 782 |
Clarification on when limitation period under Limitation Act 1980 starts for competition claims; time runs from when claimant could reasonably know of claim. |
Applied to establish that High Court stand-alone claim was time-barred as the limitation period started before 2019 claim issuance. |
| Sainsbury's Supermarkets Ltd v Mastercard Inc [2015] EWHC 3472 (Ch) |
Held that CAT Rules 2015 limitation provisions do not apply to claims transferred from the High Court. |
The CAT distinguished this judgment, finding it not dispositive for the current case, but acknowledged it raised relevant issues. |
| Merricks v Mastercard [2023] CAT 15; [2024] EWCA Civ 759 |
Interpreted CAT’s transitional limitation provisions and Parliamentary intent to preserve accrued limitation rights. |
Referenced in submissions to argue accrued rights under Limitation Act should not be overridden by CAT Rules; court rejected this argument. |
| Stocznia Gdynia SA v Gearbulk Holdings Ltd [2009] EWCA Civ 75 |
Principle that clear wording is required to show parties have agreed to give up rights. |
Applied to reject estoppel argument absent clear wording in Transfer Order. |
| Bahamas Oil Refining International Ltd v Owners of the Cape Bari Tankschiffahrts [2016] UKPC 20 |
Similar principle on contractual estoppel and clear wording. |
Supported rejection of estoppel claim. |
| First Tower Trustees Ltd v CDS Superstores International Ltd [2018] EWCA Civ 1396 |
Contractual estoppel and interpretation of agreements. |
Referenced to support the requirement of clear wording for estoppel. |
| Springwell Navigation Corp v JP Morgan Chase Bank & Ors [2010] EWCA Civ 1221 |
Explains contractual estoppel as binding parties to agreed facts regardless of truth. |
Used to explain estoppel principles but court rejected estoppel on facts. |
| National Westminster Bank v De Kment [2016] EWHC 3875 (Comm) |
Consent orders can create contractual estoppel. |
Appellants relied on this to argue Transfer Order created estoppel; court rejected on construction. |
| Ofulue v Bossert [2009] 1 AC 990 |
Limitation periods can be altered by contract. |
Referenced by Appellants; court found no clear contractual waiver of rights here. |
| Viegas v Cutrale [2024] EWCA Civ 1122 |
Discusses section 35 Limitation Act 1980 and relation back of claims. |
Distinguished on facts; court held claim against 12th Defendant is separate and not time-barred. |
Court's Reasoning and Analysis
The court undertook a detailed statutory and rules-based construction, emphasizing that the CAT Rules are comprehensive, self-contained, and forward-looking, governing only proceedings before the CAT. The filing of a Claim Form under Rule 30 in the CAT constitutes the making of a new claim in the CAT jurisdiction, distinct from the High Court claim. Consequently, the limitation period under the CAT Rules (two years from the date the infringement decision became final) applies to the follow-on claim, which was filed in time.
The court rejected reliance on the parties' subjective understanding or the intentions behind the Transfer Order as extraneous to the operation of the Rules. It held that the procedural history of the claim before transfer cannot override the clear wording and purpose of the CAT Rules.
The court distinguished the Sainsbury's judgment, finding it not determinative in this case because the current proceedings involved a Claim Form filed in the CAT within the limitation period, whereas Sainsbury's dealt with different circumstances.
On the contractual estoppel argument, the court held that the Transfer Order preserved the Defendants' accrued rights as they existed in the High Court proceedings only, not rights to defeat a new claim validly made in the CAT. The absence of clear wording in the Transfer Order to waive the Claimants' right to bring a claim within the CAT Rules' limitation period was decisive. The court found it implausible that the Claimants would contractually agree to forfeit a valuable right to bring a timely claim in the CAT.
Regarding the 12th Defendant, the court reasoned that the claim against this party, added after transfer and within the limitation period, constitutes a separate follow-on claim under section 47A CA 1998 and is not time-barred. The concept of "relation back" under section 35 Limitation Act 1980 does not apply to render this claim time-barred, as the 12th Defendant was not party to the original High Court proceedings.
Holding and Implications
The appeal is dismissed.
The court held that the Claimants validly made a follow-on claim in the CAT within the applicable two-year limitation period under the CAT Rules, notwithstanding the prior High Court proceedings being time-barred under the Limitation Act 1980. The Transfer Order did not estop the Claimants from relying on the CAT Rules' limitation period. The claim against the newly joined 12th Defendant is valid and timely.
The decision affirms the independence and primacy of the CAT Rules in governing follow-on claims transferred to the CAT and clarifies that procedural transfers do not carry over limitation rights accrued under different regimes. This preserves the legislative purpose of facilitating specialist competition law claims in the CAT and prevents procedural technicalities from extinguishing substantive rights. No new precedent beyond the specific statutory and rules context is established.