Investment Treaty & Investor-State Arbitration
Jurisdiction, damages and enforcement decide what a treaty claim is worth.
Treaty-based claims and defences before ICSID and UNCITRAL tribunals, and the enforcement of investment awards.
When a State’s measures
put an investment at risk.
ME Law acts as counsel and advocate in investment-treaty and investor-State disputes — for companies, funds and individuals whose investments abroad have been expropriated, frustrated or treated unfairly by the host State — and in the annulment, set-aside and enforcement proceedings that follow the award.
Treaty claims are decided on a different footing from commercial disputes. Whether a treaty applies, whether the investor and the investment qualify, whether the State consented to arbitration and whether the procedural preconditions were met can decide a case before the merits are reached. We test those questions first, build the damages case alongside the liability case, and plan how an award will be enforced against a sovereign.
- Treaty and jurisdiction analysis
- ICSID and UNCITRAL proceedings
- Damages and valuation strategy
- Annulment and enforcement
Against a State, the strength of the claim is only the beginning. Jurisdiction, damages and enforcement decide what it is worth.
A treaty claim is
a campaign,
not a filing.
The questions a State will raise first — which treaty, which investor, which investment, which consent — are the ones we answer first. A claim that survives them is then built on the valuation evidence, not decorated with it at the end.
Which treaty applies
We identify every treaty that may protect the investment — bilateral investment treaties, free-trade agreements with investment chapters, multilateral instruments — and confirm that it is in force between the relevant States and that the State’s consent covers the dispute.
Who and what is protected
Nationality, ownership and control, the timing of any restructuring and the nature of the investment are tested against the treaty’s definitions — the objections a State raises first.
The steps before the claim
Notice of dispute, cooling-off and negotiation periods, local-litigation requirements and fork-in-the-road clauses are complied with in the right order, before choosing between ICSID and UNCITRAL arbitration where the treaty allows it.
Breach and its value
Expropriation, fair and equitable treatment, full protection and security and non-discrimination claims are framed together with the valuation evidence, prepared with independent experts from the outset.
Recovery against a sovereign
We plan for annulment or set-aside proceedings and for enforcement against State assets, taking account of immunity from execution in the jurisdictions where assets may be found.
Investor-State disputes,
by stage and standard.
Treaty cases turn on the treaty’s wording, the investor’s structure and the State’s conduct. Select a category to see the typical matters and the related services.
Expropriation & Nationalisation
Claims where a host State takes an investment outright or deprives it of its value through regulatory measures, licence revocations, contract cancellations or tax measures — and the compensation the treaty requires.
- Direct expropriation and nationalisation
- Indirect or “creeping” expropriation
- Licence and permit revocations
- Compensation and valuation
Fair & Equitable Treatment
Claims under the treaty standards most often invoked — fair and equitable treatment, full protection and security, national and most-favoured-nation treatment — and umbrella clauses where the treaty contains one.
- Legitimate expectations and stability
- Denial of justice
- Discrimination and arbitrariness
- Umbrella-clause claims
Jurisdiction & Admissibility
Advancing and answering objections on nationality, the definition of investment, the treaty’s temporal scope, abuse of process, fork-in-the-road and waiver clauses, and the limits of the State’s consent.
- Nationality and corporate structuring
- Definition of investment
- Temporal and subject-matter scope
- Bifurcation strategy
ICSID & UNCITRAL Proceedings
Proceedings under the ICSID Convention and Arbitration Rules, the ICSID Additional Facility, or the UNCITRAL Arbitration Rules — frequently administered by the Permanent Court of Arbitration — including provisional measures and transparency requirements.
- ICSID Convention arbitration
- UNCITRAL Rules proceedings
- Provisional measures
- Non-disputing party submissions
Damages & Valuation
Quantum strategy under the standard of full reparation: the valuation date, discounted-cash-flow and market approaches, lost profits, interest, and the evidence a tribunal needs before it will accept them.
- Valuation date and methodology
- Lost profits and DCF analysis
- Interest and costs
- Expert evidence strategy
Annulment, Set-Aside & Enforcement
ICSID annulment proceedings, set-aside applications against non-ICSID awards at the seat, and recognition and enforcement against State assets — with local counsel in each enforcing jurisdiction.
- ICSID annulment committees
- Set-aside at the seat
- Enforcement against State assets
- Immunity from execution
How investment treaty
claims work.
Which treaties protect investors
Thousands of bilateral investment treaties, together with free-trade agreements that contain investment chapters and a number of multilateral instruments, give foreign investors substantive protections and, in most cases, the right to bring claims against the host State before an international tribunal. Treaties change: some are terminated (often with “sunset” clauses that protect existing investments for years afterwards), replaced or renegotiated, and some States have narrowed their consent to arbitration. The first question in every matter is therefore which treaty applied at the relevant time, between which States, and on what terms.
Who and what qualifies
Treaties protect investors of one State who hold investments in the other, as each treaty defines them. Nationality may depend on incorporation, the seat of management or control; some treaties deny their benefits to companies with no substantial business in the home State. Structuring an investment through a treaty-protected company can be legitimate planning, but tribunals have declined jurisdiction where a restructuring took place when the dispute was already foreseeable.
The standards of protection
- Expropriation — a taking, direct or indirect, is lawful only if it serves a public purpose, is non-discriminatory, follows due process and is accompanied by compensation, usually described as prompt, adequate and effective.
- Fair and equitable treatment — protection against arbitrary, grossly unfair or discriminatory conduct and denial of justice, and in many treaties the frustration of legitimate expectations the State created; its content depends on the treaty’s wording.
- Full protection and security, national treatment and most-favoured-nation treatment, the free transfer of funds and, in some treaties, an umbrella clause that brings the State’s contractual undertakings within the treaty.
ICSID or UNCITRAL
ICSID arbitration is available where both the host State and the investor’s home State are parties to the ICSID Convention and the dispute meets the Convention’s requirements; the ICSID Additional Facility can cover some other cases. Other treaty claims proceed under the UNCITRAL Arbitration Rules or institutional rules named in the treaty, often administered by the Permanent Court of Arbitration. The choice decides which review the award is subject to and how it is enforced.
Damages
A State must make full reparation for the consequences of its internationally wrongful act. In practice tribunals assess the fair market value of the investment — by discounted cash flows for a going concern with a record of profitability, or by market or asset-based methods — lost profits where proved with sufficient certainty, and interest. The valuation date and the counterfactual are frequently where cases are won or lost.
Enforcing investment awards
ICSID awards are binding and not subject to any appeal or other remedy except those the Convention itself provides (Article 53) — interpretation, revision and annulment, the last decided by an ad hoc committee on limited grounds (Articles 50 to 52). Every Contracting State must recognise an ICSID award and enforce its pecuniary obligations as if it were a final judgment of its own courts (Article 54), but the Convention preserves each State’s law on immunity from execution (Article 55): recovery depends on finding State assets that are not immune, typically assets used for commercial purposes. Awards outside ICSID are enforced under the New York Convention, after any set-aside proceedings at the seat — see award enforcement.
Counsel for investors
facing a sovereign.
We act for foreign investors whose investments have been affected by the conduct of a host State, and advise investors and lenders on the treaty protection available before a dispute arises.
Foreign Investors
Companies whose investments abroad have been expropriated, frustrated or treated unfairly by the host State.
Funds & Family Offices
Treaty protection for portfolio and direct investments, and claims where State measures destroy value.
Project Companies & Sponsors
Energy, mining, infrastructure and telecommunications investments exposed to regulatory and contractual change.
Lenders & Financial Investors
Claims where the treaty’s definition of investment reaches loans, bonds and other financial instruments.
Individual Investors
Private investors whose nationality and holdings bring them within a treaty’s protection.
General Counsel & Boards
Structuring advice and early assessment of treaty options when a State’s measures first appear.
A treaty claim is a long campaign against a sovereign. It is won by getting jurisdiction, damages and enforcement right from the start.
Assess a treaty claim
in confidence.
If a host State’s measures have affected your investment, time matters: notice periods, cooling-off requirements and treaty changes can narrow the options. Speak with senior counsel about whether a treaty applies and how a claim would be structured.
Consultations are held in person or by video, wherever you are. Describe the matter briefly — no confidential details are needed until a conflict check is complete.