Factual and Procedural Background
This appeal concerned the scope of investor–state arbitration provisions in a bilateral investment treaty between the Appellant and State B. The Respondent invested US$42.5 million in Company A, an entity established to develop an alumina and aluminium project in State A. The investment was ultimately held as approximately a 12% shareholding. Governmental actions resulted in the cancellation of the bauxite supply agreement between Company A and Company B, leaving the refinery without its intended supply. [1][2][3][4][5]
An arbitral tribunal held that the claim fell outside the treaty’s arbitration provisions because the governmental actions were applied directly only to Company A and Company B, and affected the Respondent’s shareholding indirectly. The High Court set that award aside under section 67 of the Arbitration Act 1996, holding that the actions were targeted at the Respondent’s investment and fell within the treaty. The Appellant appealed. [6][7][8]
Legal Issues Presented
- What constituted the Respondent’s protected “Investment” under the treaty, including whether it extended beyond the shareholding to the underlying project, Company A’s assets, or the bauxite supply agreement? [9][10][11][12]
- Whether the governmental actions were “Measures” applied directly to that Investment within the meaning of the treaty. [1][13][14][15]
- Whether the Respondent could introduce a new argument that the treaty contained a freestanding offer to arbitrate, notwithstanding its abandonment before the High Court. [16][17][18][19]
Arguments of the Parties
Appellant’s Arguments
- The Respondent’s Investment was solely its 12% shareholding in Company A; treating the cash, shares and pledge as simultaneous investments amounted to double counting. [9][20]
- The pledge was not an asset forming part of the Investment. [9][20]
- The High Court had wrongly equated the Investment with the overall project. [21]
- Governmental action was applied directly to shares only where it legally affected or regulated the shares themselves; action affecting Company A’s business or assets had merely an indirect effect on the shareholding. [14][15]
- The treaty’s wording, its limited arbitration offer, and the circumstances surrounding its conclusion supported a narrow interpretation. [22][23][24]
Respondent’s Arguments
- The governmental actions were directly applied to the Respondent’s shareholding because they targeted the investment project in which the shares represented invested capital. [25][26]
- Alternatively, the Investment included the bauxite supply agreement, to which the actions were directly applied. [11]
- The treaty covered indirect investments and did not require the Investor to own directly every asset comprising the Investment. [27][12]
- Alternatively, a “direct nexus” between the governmental action and the Investment was sufficient. [16]
- The treaty contained a freestanding offer to arbitrate disputes, regardless of whether there was a “Measure” within the treaty definition. [16][18]
Table of Precedents Cited
| Precedent | Rule or Principle Cited For | Application by the Court |
|---|
| Infrastructure Services Luxembourg SARL v The Kingdom of Spain [2026] UKSC 9, [2026] 2 WLR 581 | Treaty interpretation is a holistic exercise under Article 31 of the Vienna Convention; supplementary materials under Article 32 have limited use. | The Court relied on this approach and rejected reliance on negotiation material that did not clearly and indisputably establish a definite intention. [28][29][30][24] |
| JTI Polska sp. z o.o. v Jakubowski [2024] AC 621 | Treaty interpretation involves a single combined operation considering ordinary meaning, context, object and purpose. | Cited in explaining the holistic Article 31 approach. [31] |
| Maritime Delimitation in the Indian Ocean (Somalia v Kenya) [2017] ICJ Rep 3 | Holistic treaty interpretation. | Cited as authority for the Article 31 approach. [31] |
| Fothergill v Monarch Airlines [1981] AC 251 | Use of travaux préparatoires requires clear and indisputable evidence of legislative intention in appropriate cases. | Supported the Court’s cautious approach to supplementary treaty materials. [32] |
| Effort Shipping Co Ltd v Linden Management S.A. and others [1998] AC 605 | Limits on using supplementary material in treaty or contractual interpretation. | Cited with Fothergill on the restricted role of supplementary materials. [32] |
| Republic of Korea v Elliott Associates LP [2024] EWHC 2037 (Comm); [2025] EWCA Civ 905 | Investment-treaty jurisdiction provisions should be interpreted even-handedly, rather than presumptively for investors or states. | The Court adopted the even-handed approach, while treating the earlier first-instance decision as superseded in some respects. [33][34] |
| Swissbourgh v Lesotho [2018] SGCA 81 | Investment-treaty jurisdiction provisions should be interpreted neither liberally nor restrictively. | Used in support of the even-handed approach. [34] |
| Ecuador v Occidental Exploration & Production (No.2) [2007] EWCA Civ 656, [2007] 2 Lloyd’s Rep 352 | BIT object and purpose may permit uncertainties to be resolved in favour of investor protection. | The Court held this did not establish a presumption, but reflected the ordinary Article 31 inquiry into object and purpose. [35][36] |
| SGS v Philippines (2004) 8 ICSID Reports 515 | Investor protection and access to international arbitration as an object of a BIT. | Cited in the passage considered in Occidental. [37] |
| Czech Republic v European Media Ventures SA [2007] EWHC 2851 (Comm), [2008] 1 All ER (Comm) 531 | No general rule that ambiguities must be resolved for investors. | Referred to as questioning the broader interpretation of Occidental. [38][39] |
| GPF v Poland [2018] EWHC 409 | Limits on resolving treaty ambiguity in favour of investors. | Referred to as another decision questioning that approach. [38] |
| The Czech Republic v Diag Human SE [2024] EWHC 2102 (Comm) | A holistic approach may assist in determining whether an asset has the quality of an investment. | The Court noted that this did not convert something that was not an asset into an Investment under the treaty. [40][41] |
| Barcelona Traction; ICJ Rep. 1970 | Separate corporate personality and the distinction between a company’s assets and its shareholders’ interests. | The Tribunal relied on that distinction, but the High Court and Court of Appeal treated the treaty wording as requiring a different analysis of direct application. [42][43] |
| Siemens v Argentina (ICSID Case No. ARB/02/8, 3 August 2004) | An investment treaty need not require the absence of interposed companies between the investment and ultimate owner. | The Court distinguished cases involving controlled subsidiaries from the Respondent’s minority shareholding. [27][44][45] |
| Republic of Korea v Dayyani [2019] EWHC 3580 (Comm), [2020] Bus LR 884 | A treaty need not require an investor to have a direct legal interest in the relevant asset. | The Court distinguished the case because the Respondent neither owned nor controlled Company A or its assets. [46][47][48][45] |
| European American Investment Bank AG (Austria) v The Slovak Republic PCA Case No. 2010-17 | Substantive treaty protections need not necessarily be enforceable through investor–state arbitration. | Cited in support of the Appellant’s restrictive interpretation, which the Court rejected. [49][50] |
| White Industries v India | An investor–state award and its aftermath were relied on as contextual material concerning treaty negotiations. | The Court held that the available negotiation record did not establish a definite legislative intention under Article 32. [23][24] |
| Singh v Dass [2019] EWCA 360 | Principles governing whether a new point may be raised on appeal. | Identified as the applicable authority for the Court’s consideration of the Respondent’s new argument. [51] |
| Hudson v Hathway [2022] EWCA Civ 1648, [2023] KB 345 | The decision depends on all relevant factors, including the nature of the lower-court proceedings, the new point and prejudice. | The Court applied this cautious approach and refused permission to resurrect the abandoned argument. [51][19][52] |
Court’s Reasoning and Analysis
The Court interpreted the treaty according to the Vienna Convention. It treated ordinary meaning, context, object and purpose as a single holistic exercise, with supplementary materials available only in limited circumstances. The treaty’s object of protecting investments did not create a presumption in favour of the Respondent, but could influence the outcome of an otherwise uncertain interpretation. [53][31][29][54][36]
The Respondent’s Investment consisted of the invested capital, the shares received in exchange for it, and potentially rights arising from the pledge of those shares. The “change of form” provision meant that the replacement of cash by shares did not remove the Investment’s protected character and did not amount to impermissible double counting. The Court rejected the argument that the Investment was the overall project, while holding that the project was relevant to identifying what the shares represented as an investment. [55][56][10][57][58]
The Court rejected the contention that Company A’s assets became assets invested by a 12% minority shareholder. Authorities concerning controlled subsidiaries or indirect ownership did not establish that a company’s assets should be treated as those of a minority shareholder. [44][45][59]
On “applied directly”, the Court held that the relevant question was not merely whether governmental action was applied directly to the legal asset of shares, but whether it was applied directly to the Investment represented by those shares. The treaty contemplated capital being invested in a project through a corporate vehicle, and its protections would be substantially weakened if they covered only action directed at the corporate structure or shares themselves. [60][61]
The cancellation of the bauxite supply arrangement directly affected the project for which Company A had been established and therefore directly applied to the Respondent’s Investment. It was unnecessary at the jurisdictional stage to establish that the project was permanently ended; it was sufficient that the governmental actions directly applied to the Investment and damaged the value of the shares. [62][63]
The Court did not adopt the High Court’s distinction between wider executive action and action specifically “targeted” at an investment. Instead, “direct” distinguished application from indirect or consequential effects on businesses or investments directed elsewhere. The Court did not need to decide whether this was identical to the Respondent’s proposed “direct nexus” test. [64]
The Court refused to permit the Respondent to revive its freestanding-arbitration argument. Although the Court had jurisdiction to entertain the point, it had been rejected by the tribunal, abandoned before the High Court, and not determined at first instance. Allowing it would undermine the High Court’s primary decision-making role and the Arbitration Act 1996 principles of party autonomy and speedy finality. [65][66][19][52]
Holding and Implications
APPEAL DISMISSED. The Court upheld the conclusion that the governmental actions applied directly to the Respondent’s Investment and fell within the treaty’s arbitration provisions. [67][68][69][70]
The High Court’s decision setting aside the arbitral award and remitting the dispute to the tribunal for determination on its merits therefore stood. The Court’s decision directly preserved the Respondent’s ability to pursue its treaty claim; no broader implications beyond that direct effect were identified in the opinion, and no new precedent was set. [7][67]