Investment Arbitration in Ukraine for Foreign Investors
A foreign investor may bring an investment arbitration claim against Ukraine if an international investment treaty applicable to the investor and the investment contains Ukraine’s consent to arbitration, including where treaty protection continues under a post-termination clause. The investor must also satisfy the treaty’s definitions and comply with any pre-arbitration requirements, such as written notice and a mandatory period for amicable settlement.
This overview is intended for foreign investors, developers, lenders and in-house legal teams assessing treaty protection for investments in Ukraine, potential claims against the state and the practical enforceability of an arbitral award.
1. Investment arbitration: mechanism and scope
2. Legal protection for foreign investors under Ukrainian law
3. Bilateral investment treaties to which Ukraine is a party
4. Who qualifies for treaty protection: investor and investment
5. Pre-arbitration procedure
6. Treaty protection standards
7. Energy Charter Treaty: current status and withdrawals
8. Arbitration forums for claims against Ukraine
9. ICSID Convention and Ukraine’s membership
10. Recognition and enforcement of arbitral awards in Ukraine
Practical checklist
Frequently asked questions
How DLF Can Help
1. Investment arbitration: mechanism and scope
Investment arbitration, commonly referred to as investor-state dispute settlement (ISDS), allows a foreign investor to pursue a treaty-based claim directly against a host state before an international arbitral tribunal. The state’s consent is typically set out in the dispute-resolution clause of the applicable investment treaty or in another valid legal instrument. The investor accepts the state’s offer of arbitration in the manner required by the relevant instrument, typically by commencing the proceedings.
This differs from international commercial arbitration, where consent usually derives from an arbitration clause or a separate arbitration agreement between private parties. A commercial dispute with a state-owned entity does not become an investment-treaty dispute merely because the counterparty is connected with the state.
| Feature | Investment arbitration | International commercial arbitration |
|---|---|---|
| Legal basis | Investment treaty or other valid state consent | Contractual arbitration clause or separate arbitration agreement |
| Parties | Foreign investor vs. state | Two or more commercial parties |
| Subject matter | Alleged breach of investment-protection obligations | Contractual or other private-law dispute |
| Applicable law | Treaty, public international law and applicable arbitration rules; domestic law where relevant | Contract, chosen law and arbitration rules |
| Award review | ICSID: Convention annulment mechanism; non-ICSID: limited review at the seat | Limited domestic-court review under applicable arbitration law |
| Enforcement | ICSID Convention or, for non-ICSID awards, generally the New York Convention | Generally the New York Convention and domestic enforcement law |
A claim against Ukraine therefore requires more than foreign ownership or a dispute with a Ukrainian public body. It is necessary to establish the specific consent to arbitration, confirm that the claimant and the asset fall within the relevant treaty, identify the alleged treaty breach and comply with the treaty’s procedural conditions.
2. Legal protection for foreign investors under Ukrainian law
The Law of Ukraine “On the Regime of Foreign Investment” No. 93/96-VR provides domestic statutory guarantees for foreign investors. Foreign investments are not subject to nationalisation, and requisition is permitted only in the exceptional circumstances specified by the Law, including rescue measures following natural disasters, accidents, epidemics or epizootics. Such requisition may be carried out pursuant to decisions of bodies authorised for this purpose by the Cabinet of Ministers of Ukraine. The Law also contains compensation rules based on current market prices and still refers to LIBOR as the benchmark for interest on compensation.
The Law’s ten-year stability guarantee is narrower than a general promise that all investment conditions will remain unchanged for ten years after an investment is made. If subsequent special Ukrainian legislation on foreign investment changes the investment-protection guarantees contained in Section II of the Law, a foreign investor may request continued application of those statutory guarantees for ten years from the date the new legislation takes effect.
The Law of Ukraine “On Investment Activity” No. 1560-XII provides in Article 22 that where an international treaty of Ukraine establishes rules different from those contained in Ukrainian investment legislation, the treaty rules apply. This makes the terms of the relevant BIT or the Energy Charter Treaty central to the legal assessment of a treaty claim.
The Law of Ukraine “On International Commercial Arbitration” No. 4002-XII governs, among other matters, recognition and enforcement of arbitral awards in Ukraine. In 2026, the Law of Ukraine “On Amendments to Certain Laws of Ukraine on Expanding the Competence of International Arbitration” No. 4856-IX expressly extended the scope of international arbitration to investor-state disputes where the necessary basis for arbitration is provided by an international treaty, Ukrainian legislation, another regulatory act or an agreement between the parties. This amendment does not itself replace or expand the consent to a particular forum contained in an existing BIT.
The Law of Ukraine “On Sanctions” No. 1644-VII does not establish a general prohibition on filing an investment arbitration claim. Individual sanctions may nevertheless affect assets, payments, legal representation and enforcement. Any claim involving sanctions exposure therefore requires a separate treaty and sanctions analysis.
3. Bilateral investment treaties to which Ukraine is a party
Ukraine has bilateral investment treaties with numerous states. Whether a treaty protects a particular investor depends not only on nationality or incorporation, but also on the treaty definitions, the date and structure of the investment, the dispute-resolution clause and any provision that continues treaty protection after termination.
| Treaty | Entry into force | Arbitration forum | Amicable-settlement period | Post-termination protection | Current status |
|---|---|---|---|---|---|
| Germany-Ukraine BIT | 29 June 1996 | ICSID once both states became ICSID Contracting States, unless the disputing parties agree another procedure | 6 months | 20 years | In force |
| Netherlands-Ukraine BIT | 1 June 1997 | ICSID under the treaty once both states are ICSID Contracting States | 3 months | 15 years | In force |
| Agreement between the Government of the United Kingdom of Great Britain and Northern Ireland and the Government of Ukraine for the Promotion and Reciprocal Protection of Investments | 10 February 1993 | By agreement: ICSID, ICC or ad hoc arbitration; absent agreement, UNCITRAL at the investor’s written request | 3 months | 15 years | In force under the official treaty text reviewed |
For German investors, the relevant bilateral treaty is the Agreement between Ukraine and the Federal Republic of Germany on the Promotion and Mutual Protection of Investments of 15 February 1993. Germany’s withdrawal from the Energy Charter Treaty did not terminate or amend this separate bilateral treaty.
The Russia-Ukraine investment treaty was terminated on 27 January 2025, but its ten-year post-termination protection clause may continue to apply to investments covered at the termination date, potentially until 27 January 2035. The Belarus-Ukraine investment treaty is currently marked as in force in the Verkhovna Rada database. Investors with links to Russia or Belarus should also assess sanctions restrictions, payment limitations and the enforceability of any award.
4. Who qualifies for treaty protection: investor and investment
The right to bring an investment arbitration claim depends on the applicable treaty. Before preparing a claim, at least five issues should be checked.
1. Applicable treaty. The BIT or ECT must cover the relevant investment, and the alleged breach must fall within its scope. If the treaty has been terminated, any post-termination protection clause must be reviewed.
2. Investor status. The natural or legal person must fall within the treaty definition of an investor. This is particularly important for holding structures, intermediary companies, dual nationals and restructurings carried out before the dispute arose.
3. Investment status. The asset must fall within the treaty definition of an investment. Shares, property, concessions, contractual claims and financing may be treated differently depending on the wording of the applicable treaty.
4. Procedural prerequisites. The investor should review any notice requirement, negotiation or cooling-off period, fork-in-the-road clause, requirement to pursue domestic remedies and treaty-specific time limits.
5. Other considerations. Sanctions, jurisdictional objections, the legality of the investment structure and sovereign immunity at the enforcement stage must be assessed separately.
5. Pre-arbitration procedure
Before commencing an investment arbitration against Ukraine, the investor must follow the procedural conditions contained in the applicable treaty. Non-compliance may give rise to an objection that the claim is outside the tribunal’s jurisdiction, inadmissible or premature, depending on the treaty and the tribunal’s approach.
A treaty may require a formal written notice of dispute. As a practical matter, the notice should identify the investor and the investment, describe the relevant state conduct, specify the treaty provisions relied upon and state the relief or settlement sought. The exact formal requirements must be determined from the treaty and any applicable arbitration rules rather than assumed from general practice.
The amicable-settlement or cooling-off period varies by treaty. The Germany-Ukraine BIT provides for a six-month period from the date the dispute is raised before arbitration may be commenced. The UK-Ukraine BIT provides three months from written notification of the claim. The Energy Charter Treaty provides a three-month period for amicable settlement. Other Ukrainian BITs may contain different rules.
Some treaties contain a fork-in-the-road clause or other rules affecting the relationship between domestic proceedings and treaty arbitration. There is no universal rule across Ukraine’s BITs. Before filing in a Ukrainian court or administrative forum, an investor should check whether that procedural step could affect a later treaty claim.
There is likewise no universal three-year, five-year or other limitation period for Ukrainian BIT claims. Some investment treaties contain express time limits; many older-generation BITs do not. Any applicable time bar must be identified from the treaty, the governing legal framework and relevant procedural doctrines.
6. Treaty protection standards
Investment treaties use different wording and should not be treated as interchangeable. The following standards are common, but their precise content depends on the applicable treaty.
Fair and equitable treatment (FET). The Germany-Ukraine BIT requires fair treatment of covered investments, and the UK treaty contains express FET language. The legal scope of FET is determined by the treaty wording and arbitral jurisprudence; the standard is not an unconditional guarantee of regulatory stability.
Full protection and security (FPS). The UK-Ukraine BIT expressly provides full protection and security. The Germany-Ukraine treaty also provides comprehensive treaty protection of covered investments. The standard does not amount to strict liability for every loss suffered by an investor.
Protection against expropriation. Investment treaties typically regulate direct expropriation and measures having equivalent effect, and specify conditions for lawful taking and compensation. Whether a measure is compensable expropriation or legitimate public-interest regulation is a fact- and treaty-specific question.
Most-favoured-nation treatment (MFN) and national treatment protect against less favourable treatment within the scope defined by the treaty. The use of an MFN clause to import dispute-resolution provisions from another treaty remains legally contested and should not be assumed without analysis of the wording and applicable case law.
War and emergency losses. Some Ukrainian BITs contain specific provisions on losses arising from war, armed conflict or a state of emergency. For example, Article 5 of the UK-Ukraine BIT provides national/MFN treatment for restitution, indemnification or compensation and contains additional rules for certain requisition or destruction by state forces. These clauses do not create automatic compensation for every wartime loss; the treaty wording, cause of the loss and state conduct remain decisive.
7. Energy Charter Treaty: current status and withdrawals
The Energy Charter Treaty (ECT) provides investment protection within its energy-sector scope. According to the Energy Charter Secretariat, the ECT entered into force for Ukraine on 27 January 1999.
The Energy Charter Conference adopted modernised ECT amendments in December 2024. The amendments have applied provisionally since 3 September 2025 for Contracting Parties that did not opt out of provisional application; Ukraine is not included in the Secretariat’s published list of opt-outs. Formal entry into force remains subject to the treaty’s ratification threshold and the position of each Contracting Party.
Several withdrawals have materially changed the ECT landscape for European investors:
| State / organisation | Effective withdrawal date | Current relevance |
|---|---|---|
| France | 8 December 2023 | Pre-withdrawal covered investments may benefit from Article 47(3) |
| Germany | 20 December 2023 | Separate Germany-Ukraine BIT remains unaffected |
| United Kingdom | 27 April 2025 | Pre-withdrawal covered investments may benefit from Article 47(3) |
| European Union and Euratom | 28 June 2025 | Withdrawal is separate from the position of individual member states |
| Netherlands, European part | 28 June 2025 | Separate national withdrawal confirmed by the ECT Depositary |
Article 47(3) of the ECT provides that the Treaty continues to apply for 20 years to investments covered at the date a Contracting Party’s withdrawal takes effect. A withdrawal therefore does not, by itself, eliminate treaty protection for a qualifying pre-withdrawal investment or rule out claims concerning conduct during the 20-year continuation period. The investor must still establish that the investment was covered at the relevant withdrawal date and that the claim falls within the applicable ECT framework.
Investors should also verify the current ECT status of their home state immediately before relying on the Treaty. Withdrawal notifications and positions on provisional application may continue to change.
8. Arbitration forums for claims against Ukraine
The available forum depends on the consent clause in the applicable BIT, the ECT or another valid instrument. Ukraine’s membership in the ICSID Convention does not, by itself, give every foreign investor access to ICSID.
ICSID (International Centre for Settlement of Investment Disputes) is available where the applicable consent extends to ICSID arbitration and the Convention’s jurisdictional requirements are met. For example, the Germany-Ukraine BIT provides for ICSID after both states became parties to the ICSID Convention, unless the disputing parties agree another procedure. Other BITs may provide different arbitration forums.
UNCITRAL Arbitration Rules provide a framework for ad hoc arbitration rather than a permanent arbitral institution. Proceedings under those Rules are often administered by the Permanent Court of Arbitration (PCA) in The Hague. UNCITRAL is expressly available under several investment treaties, but the exact treaty clause controls.
The SCC Arbitration Institute is available only where the applicable treaty or other valid instrument provides the necessary consent. Its availability must therefore be confirmed from the specific legal instrument relied upon.
The 2026 expansion of Ukrainian arbitration legislation also permits investor-state disputes to be referred to international arbitration, including proceedings before the International Commercial Arbitration Court at the Ukrainian Chamber of Commerce and Industry, where the relevant international treaty, law, regulatory act or agreement supplies the necessary jurisdictional basis. Existing BIT forum clauses remain decisive for claims brought under those treaties.
9. ICSID Convention and Ukraine’s membership
According to ICSID’s official member-state database, the Convention on the Settlement of Investment Disputes between States and Nationals of Other States entered into force for Ukraine on 7 April 2000.
ICSID awards are subject to the Convention’s self-contained review and enforcement regime. They are not subject to merits review by national courts. The Convention provides a limited annulment mechanism through an ad hoc committee under Article 52.
Article 54 requires Contracting States to recognise an ICSID award as binding and enforce the pecuniary obligations imposed by the award as if the award were a final judgment of a domestic court. Article 55, however, preserves the applicable rules on state immunity from execution. The existence of an ICSID award therefore does not make all state assets automatically available for enforcement.
Access to ICSID arbitration against Ukraine remains treaty-specific. Ukraine’s status as an ICSID Contracting State is necessary for Convention arbitration but is not sufficient without the required consent and jurisdictional conditions.
10. Recognition and enforcement of arbitral awards in Ukraine
Ukraine signed the Convention on the Recognition and Enforcement of Foreign Arbitral Awards of 1958 on 29 December 1958, ratified it on 10 October 1960, and the Convention entered into force for Ukraine on 10 January 1961. UNCITRAL records Ukraine with note (b), concerning treatment of awards from non-Contracting States, and does not record the commercial reservation identified as note (c).
For non-ICSID awards, the Law of Ukraine “On International Commercial Arbitration” No. 4002-XII and the New York Convention govern the principal recognition and enforcement framework. Article 35 requires arbitral awards to be recognised as binding, while Article 36 contains limited grounds for refusal corresponding broadly to Article V of the New York Convention. The enforcing court does not reconsider the merits of the underlying dispute.
The Civil Procedure Code of Ukraine determines court jurisdiction. Where the seat of arbitration is outside Ukraine, an application for recognition and enforcement is submitted to the appellate court whose territorial jurisdiction covers Kyiv, i.e. the Kyiv Court of Appeal. The required documents and any duly certified translations into Ukrainian must comply with the procedural rules applicable to the particular application.
ICSID awards follow the separate Article 54 regime and are not subject to recognition under the New York Convention. In either system, actual recovery against Ukrainian state property may depend on sovereign-immunity rules, the character and location of assets and the law of the enforcement jurisdiction.
Practical checklist
For a foreign investor considering investment arbitration against Ukraine:
- identify the applicable BIT, ECT or other valid legal basis for arbitration;
- check the treaty’s current status and whether any post-termination protection clause applies;
- confirm that the investor and the asset fall within the treaty definitions;
- review the ownership structure and any restructuring carried out before the dispute arose;
- compare the facts with the specific protection standards contained in the treaty;
- check the notice procedure, amicable-settlement period and any fork-in-the-road clause;
- do not assume a universal limitation period — identify any treaty-specific time limits;
- identify the available arbitration forum and the applicable procedural rules;
- for energy investments, check the current ECT status, the applicability of the modernised provisions and the status of the investor’s home state;
- for structures involving sanctions exposure, carry out a separate sanctions analysis;
- assess in advance relevant state assets, possible enforcement jurisdictions and sovereign-immunity issues.
Frequently asked questions
Which bilateral investment treaties protect foreign investments in Ukraine?
Protection depends on the investor’s home state and the treaty applicable to the particular investment. The treaties with Germany, the Netherlands and the United Kingdom discussed above are shown as in force in the official sources reviewed. Treaty status and any post-termination protection should be checked for the specific investor before relying on a BIT.
What procedural steps are required before filing an investment arbitration claim against Ukraine?
The investor should first confirm treaty coverage and consent to the proposed forum. It must then comply with the treaty’s notice and amicable-settlement requirements, assess any fork-in-the-road or domestic-remedy provisions and identify any applicable time bar before filing.
What role does the Germany-Ukraine BIT play after Germany’s withdrawal from the Energy Charter Treaty?
The Germany-Ukraine BIT is a separate international treaty and, according to the official Verkhovna Rada database, remains in force. It provides for a six-month amicable-settlement period and twenty years of post-termination protection if the treaty is later terminated.
Are qualifying investments still protected after an ECT withdrawal?
Potentially yes. Article 47(3) provides for the ECT to continue to apply for 20 years to investments covered on the effective withdrawal date. Whether a particular investor can rely on that clause depends on the investment date, treaty coverage, the investor’s home state and the applicable ECT provisions.
How are foreign arbitral awards enforced in Ukraine?
Non-ICSID awards are generally recognised and enforced under the New York Convention, the Law of Ukraine “On International Commercial Arbitration” and the Civil Procedure Code of Ukraine. ICSID awards follow the distinct ICSID Convention regime. In both cases, sovereign immunity can limit execution against state property.
How DLF Can Help
DLF attorneys-at-law supports foreign investors, lenders and international companies at all stages of investment protection in Ukraine: from identifying the applicable investment treaty, reviewing the investor’s corporate and holding arrangements, the investment structure and sanctions exposure to preparing a notice of dispute, conducting pre-arbitration negotiations, selecting the appropriate forum and pursuing recognition and enforcement of an award. Where relevant, DLF also reviews corporate documentation and investment structures with a view to assessing potential treaty jurisdiction and the admissibility of future claims. Relevant DLF practice areas are Litigation and Dispute Resolution and Corporate Law / M&A.
Igor Dronov, Counsel — DLF attorneys-at-law
Contact: +380 44 384 24 54, info@dlf.ua.
This material is intended for general information. Its application to a particular situation depends on the specific circumstances and requires a separate legal assessment.