Investment arbitration against Argentina: ICSID cases, awards and lessons

Key rules

1. Who defends Argentina, and how the State organises its defence

• The Treasury Attorney's Office (PTN) leads. The 2013 settlement model records that the PTN "has carried the representation of the interests of the National State" in the arbitral proceedings and was asked to certify the existence, status and amounts of the awards (Res. MEyFP 598/2013, recitals). The PTN has a National Directorate of International Affairs and Disputes (Dirección Nacional de Asuntos y Controversias Internacionales) that assists the Treasury Attorney in matters involving international law (argentina.gob.ar, PTN directory page found in the official site search).
• Provinces feed the defence. Argentina has not designated any province or public body to ICSID under art. 25(1) of the Convention, so disputes arising from provincial contracts are brought against the Republic. PTN Resolution 61/2003 (BO 12 September 2003) therefore invited provincial State Attorneys to collaborate in the defence strategy and to send all documents on investments made in their territories (arts. 1 and 2), and created a coordinating secretariat in the PTN (art. 3). Practical consequence: a provincial measure becomes a national liability.
• Representation at hearings can be conferred by decree. In 2004 the Executive gave the Minister of Justice the representation of the State at the oral hearing in CMS Gas Transmission Company v. Argentine Republic (ICSID ARB/01/8) in Paris (Decree 984/2004, BO 6 August 2004).
• Outside counsel. The Presidency publicly credited a US law firm alongside the PTN for the 2026 YPF result (argentina.gob.ar, 2 April 2026). The legal basis and terms of that engagement are not in the sources (unconfirmed).
• Certification before any payment. Before settling, the Ministry asked the PTN to certify the awards and the General Audit Office (SIGEN) to certify principal and interest, and verified that the proposing companies were the lawful holders of the claims (Res. MEyFP 598/2013, recitals). Expect the same checks today.

2. The ICSID Convention as it works against Argentina (Law 24.353)

Argentina approved the ICSID Convention by Law 24.353 (BO 2 September 1994); it is in force for Argentina since 18 November 1994 (Foreign Ministry treaty record). The articles that matter most in Argentine cases:

• Consent and jurisdiction (art. 25). The Centre hears legal disputes "arising directly out of an investment" between a Contracting State and a national of another Contracting State that both have consented to in writing; consent "cannot be unilaterally withdrawn" (art. 25(1)). In treaty cases the State's consent is the standing offer in the BIT.
• Exclusive remedy and exhaustion (art. 26). ICSID consent excludes other remedies unless stated otherwise, and a State may require prior exhaustion of local remedies as a condition of its consent. Argentina's 18 month clauses are a milder version of this (see section 4).
• Annulment, not appeal (arts. 52 and 53). A party may seek annulment on five grounds only: improper constitution of the tribunal, manifest excess of powers, corruption of a member, serious departure from a fundamental rule of procedure, and failure to state reasons (art. 52(1)). The award is binding and "shall not be subject to any appeal or to any other remedy except those provided for in this Convention" (art. 53(1)). Argentina used annulment systematically: the Total award was confirmed on annulment on 1 February 2016 and the EDF award on 5 February 2016 (Res. MF 112-E/2017; Res. MF 241-E/2017).
• Recognition (art. 54). Each Contracting State must recognise the award as binding and enforce its pecuniary obligations "as if it were a final judgment of a court in that State"; a federal State may enforce through its federal courts (art. 54(1)); the creditor files a copy certified by the Secretary General with the court designated by the State (art. 54(2)); execution follows local rules on execution of judgments (art. 54(3)).
• Immunity (art. 55). Nothing in art. 54 derogates from the law of any State on immunity from execution. This is the single most important article for collection: an ICSID award is enforceable, but State assets used for public purposes usually are not reachable.
• Costs (arts. 59 to 61). Centre charges and arbitrator fees follow schedules of the Administrative Council (arts. 59 and 60); the tribunal allocates costs in the award (art. 61(2)) (unconfirmed).

A contested point: does art. 54 require the creditor to come to Argentine courts? During the post crisis period Argentina's position was reported to be that ICSID award creditors had to seek recognition and execution through Argentine courts and local payment procedures before Argentina was in breach of art. 53 (unconfirmed). The 2013 to 2019 settlements made the question moot for the awards they covered, because each creditor waived its rights in exchange for bonds. For new awards, plan for both routes: voluntary negotiation with the Ministry of Economy, and recognition abroad.

3. The Calvo doctrine and the Argentine Constitution

The Calvo doctrine, named after a nineteenth century Argentine jurist, holds that foreigners should have the same rights as nationals, no more, and must take their disputes to local courts without diplomatic protection. It is not written into the Constitution, but several constitutional rules give it a footing:

• Treaties must conform to constitutional public law (art. 27). The federal government must strengthen relations with foreign powers "by means of treaties that are in conformity with the principles of public law laid down by this Constitution". This is the article invoked when it is argued that an award, or a treaty interpretation, cannot override constitutional principles (unconfirmed).
• Treaties rank above laws (art. 75(22)). Treaties "have a hierarchy superior to the laws", and the Constitution, federal laws and treaties are the supreme law of the Nation (art. 31). This supports investors: a BIT prevails over a later statute such as an emergency law.
• Federal courts hear cases where the Nation is a party (art. 116). The Constitution assigns to the federal judiciary cases governed by treaties and "matters in which the Nation is a party". Consent to international arbitration is a departure from this default, granted by Congress when it approves each treaty and Law 24.353.
• Expropriation requires a law and prior compensation (art. 17). "Expropriation for reasons of public utility must be authorised by law and previously compensated." The YPF case turned in part on what this meant for the minority shareholders (section 8).

Where Calvo still bites in practice.

1. 18 month local litigation clauses in the Germany, Spain, UK, Netherlands, Switzerland, Italy, Canada and Austria BITs (details on the BIT page). They force the investor into Argentine federal courts first.
2. Fork in the road clauses (US and France BITs): going to local courts first can forfeit arbitration.
3. Contracts with the State. The Civil and Commercial Code excludes from arbitration disputes in which the State is a party (CCyC art. 1651), unless a special rule allows it; see Arbitration. Concession and licence contracts often choose Argentine federal courts. An umbrella clause (section 5) is how investors have tried to bring such contracts into treaty arbitration.
4. Political statements. In 2019 the then Treasury Attorney listed four issues for the ICSID system: third party funding (which he considered contrary to good faith), claims arising from corruption, an exceptional appeal mechanism, and a limitation period to start claims (argentina.gob.ar, 29 August 2019). Some of these ideas appear in the RIGI regulation (funding disclosure, Decree 749/2024 Annex art. 132) and in the UAE BIT (three year limitation).

Plainly stated: the current government's official discourse is pro investment and pro "legal certainty" (casarosada.gob.ar, 27 March 2026), but no statute has removed the 18 month clauses, and Argentina has not denounced the ICSID Convention. A future government could take a more Calvo oriented position again; treaty survival clauses (10 to 15 years in most BITs) are the investor's protection against that.

4. Procedure: from measure to award (treaty and Convention rules)

1. Notice of dispute and negotiation. Almost every Argentine BIT requires written notice and an amicable period, usually six months (for example US BIT art. VII(2) and (3); Spain BIT art. X(1) and (2)).
2. Local litigation where required. Under the 18 month treaties, the investor must sue in Argentine courts and wait 18 months without a merits decision, or obtain a decision and still be in dispute (Germany BIT art. 10(2) and (3); Spain BIT art. X(3)). Filing costs a court fee of 3% of the amount claimed (Law 23.898, arts. 2, 4(a) and 9).
3. Request for arbitration. Filed with the ICSID Secretary General, who registers it unless the dispute is manifestly outside the Centre's jurisdiction (Convention art. 36).
4. Tribunal. Three arbitrators by default; if not constituted within 90 days after notice of registration, the Chairman of the Administrative Council appoints the missing members, who cannot be nationals of either party's State (arts. 37 and 38).
5. Jurisdictional objections. Argentina has usually raised them (nationality, "investment", 18 month rule, fork in the road, shareholder standing) (unconfirmed).
6. Merits and damages. Applicable law per the BIT or, failing agreement, host State law and international law (art. 42).
7. Award; supplementary decision or rectification within 45 days (art. 49(2)).
8. Annulment within 120 days after the award (art. 52(2)); a stay of enforcement may be requested (art. 52(5)).
9. Collection: negotiation with the Ministry of Economy, or recognition and execution abroad under art. 54 subject to art. 55 immunity.

5. Umbrella clauses: turning contract breaches into treaty claims

Many of the post 2001 cases were brought by shareholders of utility concessionaires whose licences guaranteed dollar tariffs and periodic adjustments. When the Public Emergency Law 25.561 pesified and froze tariffs, the companies argued that Argentina breached both the fair and equitable treatment standard and its specific commitments. The State's renegotiation decrees from 2004 cite Law 25.561 and its extensions as the basis for renegotiating all public service contracts (Decree 735/2004 for the Buenos Aires water concession, BO 16 June 2004; Decree 959/2004 for the southern gas transport system, BO 30 July 2004).

• The clause. The US BIT says each Party "shall observe any obligation it may have entered into with regard to investments" (art. II(2)(c)); Germany and the UK use similar wording; Spain has no express umbrella clause (comparison on the BIT page).
• Contested reach. Whether an umbrella clause elevates any contract breach into a treaty breach, only breaches by the State acting as sovereign, or only obligations entered into by the State itself (not by a province or a State company), has split tribunals (unconfirmed).
• Forum clauses in the contract. Tribunals have distinguished between treaty claims (heard by ICSID) and pure contract claims (subject to the contract's chosen forum) (unconfirmed).
• Settlement as waiver. Renegotiation agreements typically required withdrawal of ICSID claims. The Energy Ministry announced on 10 August 2018 that Camuzzi Internacional had terminated its ICSID case in line with commitments made by its gas licensees in the comprehensive tariff review, joining earlier withdrawals by Gas Natural Ban and Transportadora de Gas del Sur. A motorway concessionaire withdrew ICSID case ARB/15/48 (claims of USD 1,135,000,000 and USD 1,793,000,000) in August 2018 after a renegotiation that a later government declared harmful to the public interest (Decree 633/2022, BO 15 September 2022). Lesson: a waiver given in a renegotiation can leave the investor with neither the claim nor the renegotiated contract.

6. The key cases, as recorded in Argentine official sources

The table below lists only cases named in Argentine norms or official statements. Award amounts are given only where an official Argentine source states them; others are flagged.

Notes and flags on the table:

• CMS, Azurix, Vivendi award amounts. The resolutions do not state the award amounts, only the model terms (unconfirmed).
• Siemens. The official page is from the national appraisal tribunal and is promotional in tone. It says the company desisted "from the arbitral award"; the precise procedural event (discontinuance of enforcement or of a revision proceeding) needs checking (unconfirmed).
• Hochtief and Aerolíneas. The norms confirm payment or liability but not the amounts or the claimant names (unconfirmed). DA 822/2021 (BO 18 August 2021) also reinforced Ministry of Economy credits "for exchange differences corresponding to awards" under ICSID, which suggests at least one award was paid in cash in pesos converted to dollars in 2021 (unconfirmed).
• Abaclat. The Abaclat case (Italian retail bondholders, ICSID ARB/07/5) was the first mass claim at ICSID and the reason sovereign bonds are now discussed as "investments". No Argentine official source downloaded names it. Law 27.249 (BO 1 April 2016), which authorised the settlement with holdout bondholders, required participants to waive rights recognised by "any judicial or administrative judgment, arbitral award" and to release Argentina from any "arbitral" action on the bonds (art. 8), and required quarterly reports to Congress listing "judicial or arbitral proceedings terminated" (art. 42 of the 2016 Budget Law 27.198, as replaced by Law 27.249, art. 3). Whether and on what terms Abaclat was discontinued under this framework is not stated (unconfirmed).
• Pending cases. No official Argentine source lists the current pending ICSID or UNCITRAL cases. A PTN meeting of 10 May 2024 reviewed "the international litigation and arbitrations in progress in which the Argentine Republic is respondent" without listing them (argentina.gob.ar, 10 May 2024) (unconfirmed).

7. Award payment history: the 2013 to 2019 settlement model

Every official settlement since 2013 follows the same five step structure. Knowing it lets an award holder predict what Argentina will offer.

1. The creditor proposes. The company (often an assignee) writes to the Minister offering to cancel the award with domestic debt securities, "with a significant discount" and a reasonable repayment term (Res. MEyFP 598/2013; Res. MF 112-E/2017).
2. The State certifies. PTN certifies existence, status and amounts; SIGEN certifies principal and interest; the Ministry verifies title to the claim (Res. MEyFP 598/2013).
3. The terms. The nominal value of bonds delivered must be at least 25% below the consolidated claim including interest (Res. MEyFP 598/2013; Res. MHyFP 173/2016; Res. MF 112-E/2017; Res. MF 241-E/2017). In 2013 the creditor also had to subscribe BAADE bonds for at least 10% of the amounts claimed or make an equivalent investment in other Argentine debt (Res. MEyFP 598/2013).
4. Waivers and notices. Full and definitive waiver of all rights under the award, notice to the courts, and notice to the government of the other BIT State (Res. MEyFP 598/2013). In the Suez case, the State also waived its own claims connected with the water concession (Decree 239/2019, art. 1).
5. Budget and debt authorisation. The bonds are issued by reopening existing series, and the budget is amended to record the payment (DA 830/2013, BO 18 October 2013; DA 1161/2016, BO 21 October 2016; DA 1117/2017, BO 2 January 2018). From the 2021 budget law, obligations arising from ICSID decisions or awards payable from the national budget are recorded as financial applications (Law 27.591, art. 83, BO 14 December 2020) (unconfirmed).

What the haircuts looked like.

• Total (2017): USD 312 million owed with interest; USD 201 million nominal of BONAR 2024 delivered; nominal haircut 1 minus 201/312 = 35.6%, reported as 36% (Ministry of Finance, 18 July 2017). Authorisation was up to VN USD 210,000,000 (Res. MF 112-E/2017).
• El Paso and BG (2016): up to VN USD 225,000,000 BONAR 2024 for both (Res. MHyFP 173/2016). Award amounts not stated (unconfirmed).
• EDF (2017): up to VN USD 77,550,956 BONAR 2024 plus VN USD 53,610,867 DICA 2033, total VN USD 131,161,823 (Res. MF 241-E/2017). Award amount not stated (unconfirmed).
• Suez group (2019): principal of USD 404,539,050 plus interest; bonds up to VN USD 380,000,000 (Joint Res. 29/2019), which is 93.9% of principal before interest, so the discount on the full award was larger (unconfirmed).

Market value is not face value. All of these were Argentine law bonds whose market price at delivery was often well below par. The real recovery depended on the bond price and on how quickly the creditor sold (unconfirmed).

8. Repsol and the YPF expropriation (Laws 26.741 and 26.932)

• The expropriation. Law 26.741 (BO 7 May 2012) declared of public utility and subject to expropriation 51% of YPF S.A., represented by the same percentage of Class D shares owned by Repsol YPF S.A., its controlling or controlled companies (art. 7). The shares are split 51% for the national State and 49% for the producing provinces (art. 8). The expropriation is governed by Law 21.499 with the Executive as expropriating party (art. 11), and the price is set under art. 10 of Law 21.499 by the National Appraisal Tribunal (art. 12). Any future transfer of the expropriated shares needs approval by two thirds of the members of Congress (art. 10).
• What Law 21.499 allows. Compensation covers only the objective value of the asset and direct and immediate damages; no lost profits (art. 10). It is paid in cash unless the owner agrees to another form (art. 12). The parties can agree the price (avenimiento) instead of litigating (arts. 13 and 18). (unconfirmed)
• The settlement. Law 26.932 (sanctioned 23 April 2014, BO 28 April 2014) declared the objective of arts. 7, 11 and 12 of Law 26.741 and art. 12 of Law 21.499 fulfilled and ratified the Convenio de Solución Amigable y Avenimiento de Expropiación signed on 27 February 2014 with Repsol S.A., Repsol Capital S.L. and Repsol Butano S.A. (art. 1). It authorised the issue of Treasury bonds on the agreement's terms and a Treasury bill of up to VNO USD 150,000,000 for 18 months as counter guarantee of a Banco de la Nación guarantee (art. 2).
• The bonds. Res. SF 26/2014 (BO 8 May 2014) issued, for placement under the agreement: up to VNO USD 800,000,000 BONAR X 7% 2017 (art. 1); VNO USD 1,250,000,000 Discount 8.28% 2033 under Argentine law (art. 2); up to VNO USD 400,000,000 BODEN 7% 2015 (art. 3); and up to VNO USD 3,550,000,000 of a new BONAR 2024 8.75%, issued 7 May 2014, maturing 7 May 2024, amortising in six annual instalments from 2019 (art. 4). The total nominal ceiling is USD 6,000,000,000. The Banco de la Nación guaranteed the first three interest payments of BONAR 2024 (art. 5).
• Flags. The agreed compensation figure (commonly reported as USD 5,000 million), the mechanism by which Repsol could sell the bonds with a guaranteed floor, and the withdrawal of Repsol's ICSID claim are all in the agreement annex, published only in the web edition of the Boletín Oficial of 28 April 2014 and not downloaded (unconfirmed).
• Lesson. Repsol, the controlling shareholder, obtained a negotiated statutory settlement within two years. The minority shareholders who were not party to it pursued a different route, in New York, under YPF's bylaws (next section).

9. The YPF litigation in New York (Petersen and Eton Park)

This is not an investment treaty arbitration. It is a commercial lawsuit in the US federal courts by former YPF shareholders who argued that Argentina, on acquiring control, had to make a tender offer to all shareholders under YPF's bylaws. It matters to investors because it shows what happens when a creditor tries to collect a very large judgment against Argentina.

What the official sources state (all argentina.gob.ar or casarosada.gob.ar):

• The case is Petersen Energía / Eton Park Capital Management v. Argentine Republic and YPF S.A., ongoing for about ten years (PTN, 5 November 2025).
• Argentina lost at first instance during the previous administration (Presidency speech, 27 March 2026).
• The PTN obtained the suspension of the order to turn over the 51% of YPF shares and the rejection of an attempt to recognise the judgment in Ireland (PTN, 5 November 2025).
• The appeal hearing before the US Court of Appeals for the Second Circuit took place on 29 October 2025; the argument focused on jurisdiction and forum non conveniens and on the duty of a US court to apply Argentine law as an Argentine court would (PTN, 5 November 2025).
• On 18 March 2026 the Second Circuit granted Argentina's request of 6 March 2026 for an immediate stay of post judgment discovery and of all pending proceedings in the District Court until the merits appeal was decided, including the appeal on discovery of officials' personal devices and accounts (Official Communiqué No. 140, 18 March 2026).
• On 27 March 2026 "the US courts ruled in favour of Argentina" in the YPF expropriation case; an adverse result "would have meant paying 18 thousand million dollars" (Presidency national broadcast, 27 March 2026). The government also said it had sent Congress a bill to amend the Expropriation Law (same speech).

What the official sources do not state (unconfirmed):

• The amount and date of the first instance judgment (the commonly cited pointer of a 2023 judgment, reported in the press at about USD 16,100 million, is unconfirmed) and how the USD 18,000 million figure was computed (presumably including post judgment interest).
• The date and terms of the turnover order (the commonly cited pointer to a 2025 turnover order is confirmed only as to its existence and stay, not its date) and of its stay.
• The grounds of the March 2026 ruling (reversal on the merits under Argentine law, dismissal on forum non conveniens, or something else), whether the case was remanded, and whether the plaintiffs sought rehearing en banc or a writ of certiorari in the US Supreme Court.
• Litigation funding. The plaintiffs' claims are widely reported to have been financed by a litigation funder (Burford Capital) that acquired the rights from the bankruptcy estates of the Petersen companies (unconfirmed).
• The text and status of the Expropriation Law bill announced on 27 March 2026.

See Example 2 below for how collection of such a judgment works in numbers, and the Enforcing foreign judgments page for the reverse case (bringing a foreign judgment into Argentina).

10. The RIGI arbitration clause, as a procedure (Law 27.742; Decree 749/2024)

The RIGI and BIT pages explain what the clause offers. Here is how a RIGI dispute would run, step by step, under the text:

1. Consent is built into the application. The VPU must accept in writing, in its application, that it and its shareholders will resolve disputes through art. 221 and the RIGI Panel; the arbitration agreement is perfected on approval and only has effect from the approval act (Decree 749/2024, Annex, art. 128).
2. Notice and 60 days of negotiation (Law 27.742, art. 221; Annex art. 130).
3. No exhaustion, no time bar. No prior administrative claim is needed, no expiry period applies, and administrative appeals can be withdrawn at any time to arbitrate; but once arbitration starts, no administrative appeal may be filed against the same act (Law 27.742, art. 217).
4. Choice of rules. PCA 2012, ICC (no expedited procedure) or ICSID Convention or Additional Facility (art. 221). Claims involving rights obtained for foreign shareholders may only go to ICC or ICSID (Annex art. 130).
5. Seat and tribunal. Seat outside Argentina in a New York Convention State except for ICSID Convention cases; three arbitrators, none Argentine or of the nationality of the VPU's majority shareholder; Spanish, or Spanish or English for foreign shareholder claims under ICC or ICSID (art. 221).
6. Argentine law applies (Annex art. 131). This is a major difference from BIT claims, where international law standards apply.
7. Costs split. Each party bears its own costs and the arbitration cost is shared equally, except on discontinuance; each party must disclose third party funders, including owners and controllers of a funding entity (Annex art. 132).
8. Counterclaims and urgency. The State may counterclaim for breach of the RIGI; expedited or emergency arbitration needs the State's express written consent after approval (Annex art. 130). A VPU may discontinue and refile only after paying all the State's accrued costs (Annex art. 130).
9. Optional RIGI Panel. Three listed professionals (engineering, economics and at least one lawyer), appointed by agreement within 15 working days or by public draw; decision within 60 calendar days of closing, extendable once by 60 (Annex art. 134).
10. Consolidation with BIT cases. RIGI and BIT arbitrations on the same dispute are consolidated with the first one filed; if not possible, the RIGI claims of foreign shareholders are discontinued in favour of the BIT claim (Annex art. 135).
11. BIT protection starts at approval and only to the extent of the applicable treaty (Annex art. 136; Law 27.742, art. 222).
12. No suspension. An arbitration does not suspend Argentina's obligations or the VPU's rights (Law 27.742, art. 223); appeals or arbitrations against sanctions do suspend the sanction (art. 217).

Contested points. (a) Whether the "equal split" of costs in art. 132 is consistent with ICSID art. 61(2), which lets the tribunal allocate costs, when the claim is brought under the ICSID Convention (unconfirmed). (b) Whether a regulation can narrow the "foreign shareholder" definition (Decree 940/2024 excluded entities controlled by Argentine nationals) when the statute does not define it (unconfirmed). (c) Whether the RIGI regime itself is stable if a future Congress amends Law 27.742; the law's stability articles (arts. 201 to 206) are discussed on the RIGI page.

11. Structuring an investment for treaty protection (procedure focused)

The investor definitions are compared on the BIT page. The procedural lessons from the Argentine cases are:

• Timing. Restructuring after a dispute is foreseeable risks a finding of abuse of process (unconfirmed). Newer treaties codify this: the UAE BIT allows denial of benefits to structures created "with the primary purpose of gaining access" to arbitration (art. 13(c)).
• Shareholder claims. The post 2001 claimants were mostly foreign shareholders of Argentine companies, not the companies themselves (the 2013 resolution names the foreign parents as award holders). Make sure the treaty covers indirect and minority shareholdings.
• Choose the path. A US or France holding avoids the 18 month local litigation phase but triggers a fork in the road: do not let the Argentine subsidiary sue first on the same measure.
• Keep the contract forum in mind. If the concession or RIGI approval has its own dispute clause, decide early whether claims are "treaty" or "contract".
• Funding. Expect to disclose third party funding (Decree 749/2024 Annex art. 132; UAE BIT art. 24).
• Plan for assignment. Awards against Argentina were sold to assignees before settlement (Res. MEyFP 598/2013; Res. MHyFP 173/2016). Keep the award freely assignable and document title, since the Ministry verifies the holder.
• Waivers. Do not sign a waiver of ICSID claims in a renegotiation without a mechanism that revives the claim if the renegotiation is later annulled (Decree 633/2022 is the warning).

Step by step

Who files: the foreign investor (usually the parent company), through counsel, with the ICSID Secretariat in Washington (or the PCA or ICC for non ICSID cases). Who defends: the PTN. Online or paper: ICSID accepts electronic filing (unconfirmed). Language: per treaty and the parties; RIGI allows Spanish or English for foreign shareholder claims.

1. Day 0: document the measure. Collect the norm (decree, resolution, ARCA or BCRA rule), the date it affected you, and evidence of loss. Note the province if a provincial act is involved (PTN Res. 61/2003 means the province will feed documents to the defence).
2. Day 0 to 30: map your treaty. Which entity holds the shares? Which BIT? Is there an 18 month clause, a fork in the road, a limitation period (UAE: 3 years)? See the BIT page.
3. Day 30: written notice of dispute to the Argentine government, normally addressed to the Ministry of Economy, the Foreign Ministry and the PTN (unconfirmed).
4. Months 1 to 6: negotiation. Keep records of meetings. Do not file in Argentine courts if your treaty has a fork in the road clause.
5. Month 6 (or 24 under 18 month treaties): file the request for arbitration with the ICSID Secretary General; pay the lodging fee (unconfirmed).
6. Registration (art. 36) and tribunal constitution (arts. 37 and 38; Chairman appoints after 90 days).
7. Written phase, hearing, award. Several years (unconfirmed).
8. Annulment by either side within 120 days (art. 52). Argentina has applied for annulment of most adverse awards (unconfirmed).
9. Collection. Approach the Ministry of Economy with a settlement proposal; expect PTN and SIGEN certification and the 25% minimum discount model. In parallel, consider recognition under art. 54 where Argentina has commercial assets, bearing in mind art. 55.
10. Settlement execution. Sign the payment agreement, deliver waivers, notify courts and the BIT State, receive bonds through the BCRA registry (CRYL) [as in Res. SF 26/2014, art. 4], then decide when to sell.

Costs and timelines

Table 1. Settlement terms by norm

Table 2. ICSID and treaty deadlines

Table 3. Timeline of norms and official events (BO or publication dates)

Worked examples

All conversions at dólar MEP ARS 1,563.90 per US$ on 23 October 2026, as given in some secondary summaries (unconfirmed).

Example 1: timeline and cost of an ICSID claim for a USD 50 million investment

A US parent and, alternatively, a German parent each hold 100% of an Argentine energy company with an investment of USD 50,000,000 (ARS 78,195,000,000). On 2 November 2026 a federal measure eliminates the company's main licence. Each claims USD 50,000,000 in damages.

Step 1: timeline.

Total from measure to money: roughly 8 to 9 years for the US parent and 10 to 11 years for the German parent, on these assumptions.

Step 2: cost of the Argentine court phase (German parent only).

1. Court fee: 3% × ARS 78,195,000,000 = ARS 2,345,850,000 (USD 1,500,000), payable at filing (Law 23.898, arts. 2, 4(a) and 9).
2. Exposure to the State's lawyers' fees if the claim is later discontinued (CPCCN art. 73): for claims above 751 UMA the fee scale is 12% to 15% (Law 27.423, art. 21). With the UMA at ARS 108,005 (Supreme Court, from 1 September 2026) the claim equals about 723,994 UMA.
3. 12%: ARS 9,383,400,000 (USD 6,000,000).
4. 15%: ARS 11,729,250,000 (USD 7,500,000).
5. These are full scale figures; the 25% overall cap in CCyC art. 730 and reductions for early termination could cut them substantially; how a court would regulate fees on a claim discontinued in favour of arbitration is uncertain (unconfirmed).

Step 3: cost of the arbitration.

• ICSID lodging fee, annual administrative charge and arbitrator fees: per the ICSID Schedule of Fees (unconfirmed).
• Counsel and damages experts: market rates, no official source (unconfirmed). A funder may finance them in exchange for a share of recovery; disclosure required in RIGI cases (Decree 749/2024 Annex art. 132).
• Cost allocation: by the tribunal (ICSID art. 61(2)).

Step 4: what the award might be worth on settlement. Assume the tribunal awards USD 50,000,000 and interest brings the claim to USD 60,000,000 (ARS 93,834,000,000) at settlement [assumption].

Then apply the market price of the bonds on delivery (unconfirmed), which historically was below par.

Cost to do it: about USD 1,500,000 (ARS 2,345,850,000) in Argentine court fees for an 18 month treaty claimant, potential exposure of USD 6,000,000 to 7,500,000 in regulated fees if the local claim is discontinued (subject to caps), ICSID fees per schedule (unconfirmed), and counsel and experts (unconfirmed). Time: about 8 to 11 years from measure to money. Capital: no legal minimum; funding must be in place for the whole period. Expected recovery: historically 64% to 75% of the claim in nominal bond value, before market discount.

Example 2: how collection of the YPF judgment works, in USD

The Presidency put the exposure at USD 18,000,000,000 (ARS 28,150,200,000,000) had the judgment stood (casarosada.gob.ar, 27 March 2026). The appeal outcome removed that exposure, but the mechanics show how collection against Argentina works. All amounts below are illustrations built on that official figure.

Step 1: a US money judgment is not money. The creditor must find assets that are both located in the enforcing country and not immune from execution under that country's law (unconfirmed). Central bank reserves and assets used for public purposes are usually immune. This is why the creditor targeted shares.

Step 2: the turnover order. The shares sought were the 51% of YPF Class D shares expropriated under Law 26.741 (art. 7). The PTN says that order was suspended (5 November 2025).

Step 3: the Argentine law obstacle. Law 26.741 art. 10 requires approval by two thirds of the members of Congress for any future transfer of those shares. An Argentine official complying with a foreign turnover order without that approval would act against a federal statute. This conflict between a foreign court order and Argentine public law was central to the defence (unconfirmed).

Step 4: recognition elsewhere. The creditor tried to have the judgment recognised in Ireland and the attempt was rejected (PTN, 5 November 2025). Each country applies its own recognition test; see Enforcing foreign judgments.

Step 5: discovery. Post judgment discovery seeks to locate assets worldwide. The Second Circuit stayed it on 18 March 2026 (Communiqué No. 140).

Step 6: the negotiated alternative, using official precedents. Had the USD 18,000,000,000 judgment become final and enforceable, Argentina's own precedents suggest what a settlement could have looked like:

Read the last line carefully: the minority plaintiffs' claim, at the officially stated exposure, was three times the nominal bond ceiling paid to Repsol for the controlling 51% stake. This is the core of Argentina's public argument that the claim was disproportionate. It is an official political characterisation, not a court finding.

Step 7: interest keeps running. A US judgment accrues post judgment interest at the federal statutory rate until paid. As an illustration only, on USD 16,100,000,000 (unconfirmed) at a hypothetical 5% per year simple, one year adds USD 805,000,000 (ARS 1,258,939,500,000). Delay is costly for the debtor if it eventually loses.

Lessons for investors:

1. Winning a judgment or award against Argentina starts a second, separate fight over assets, immunity and recognition, country by country.
2. Argentine statutes (here Law 26.741 art. 10) can make the most obvious asset legally untransferable.
3. Litigation can take more than a decade (PTN: "the ten years this litigation has lasted").
4. A negotiated statutory settlement, as Repsol obtained, can be faster but requires a political deal and a law of Congress.

Practical traps

• Assuming the award is cash. The official record shows bonds, discounts and waivers, not cash at face value, with the possible exception of payments in 2021 (DNU 489/2021, DA 822/2021) whose terms are not stated (unconfirmed).
• Signing waivers in renegotiations without protection if the renegotiation is later attacked (Decree 633/2022).
• Suing locally under a fork in the road treaty (US, France) and losing arbitration.
• Skipping the 18 month phase under the Germany or Spain type treaties; tribunals have been divided on whether MFN or futility excuses it (unconfirmed).
• Forgetting the province. A provincial measure is attributed to the Republic, and the PTN coordinates with provincial attorneys (PTN Res. 61/2003).
• Selling the award without clean title. The Ministry verifies the holder before settling (Res. MEyFP 598/2013).
• Ignoring the reinvestment condition. In 2013 settling creditors had to put at least 10% back into Argentine debt.
• Relying on old interest assumptions. Settlement discounts were applied to the total "including interest", so higher accrued interest raised the base but not necessarily the recovery.
• Treating RIGI and BIT claims as parallel. They are consolidated; foreign shareholder RIGI claims yield to the BIT claim (Decree 749/2024 Annex art. 135).
• Under budgeting for disclosure. Funding disclosure covers owners and controllers of a funding entity (Annex art. 132).
• Confusing commercial and treaty cases. Petersen was a bylaws claim in US courts, not an ICSID case; ICSID's art. 54 did not help those plaintiffs.

Recent changes

• 27 March 2026: the government announced a US ruling favourable to Argentina in the YPF case and a bill to amend the Expropriation Law (casarosada.gob.ar). Grounds and finality (unconfirmed).
• 18 March 2026: Second Circuit stayed post judgment discovery and District Court proceedings pending the YPF merits appeal (Communiqué No. 140).
• 29 October 2025: Second Circuit hearing in the YPF appeal; PTN reports the turnover order stayed and Irish recognition refused (PTN, 5 November 2025).
• 22 October 2024: Decree 940/2024 amended RIGI definitions, including foreign shareholder.
• 2 October 2024: Decree 873/2024 declared Aerolíneas Argentinas subject to privatisation, reciting an ICSID condemnation from the 2008 rescue.
• 23 August 2024: Decree 749/2024 regulated RIGI dispute resolution (Annex arts. 124 to 137).
• 8 July 2024: Law 27.742 created the RIGI arbitration clause.
• 10 May 2024: PTN meeting with government legal services on pending international litigation and arbitration.

Pending changes

• Expropriation Law reform: bill announced 27 March 2026; text, number and status not found (unconfirmed).
• YPF finality: whether rehearing or certiorari is pending (unconfirmed).
• Pending ICSID cases against Argentina: no official list (unconfirmed).
• Unpaid awards: no official stock figure (unconfirmed).
• Budget treatment after 2021: whether the art. 83 rule of Law 27.591 is repeated in later budget laws (unconfirmed).
• Japan and Qatar BITs still before Congress; El Salvador 2026 signed, not in force (see the BIT page).
• ICSID rules: the 2022 ICSID Rules amendments (third party funding disclosure, expedited arbitration, transparency) apply to cases registered after their entry into force (unconfirmed).

FAQ

1. Is Argentina really the most sued country at ICSID? It has been widely described that way, driven by the wave of claims filed after the 2001 crisis (unconfirmed). The Argentine norms downloaded for this page name at least 13 treaty awards or claims.

2. Has Argentina ever paid an ICSID award? Yes, but mostly through negotiated settlements in its own bonds at a discount: five awards in 2013, two in 2016, two in 2017, one in 2019 (Res. MEyFP 598/2013; Res. MHyFP 173/2016; Res. MF 112-E/2017 and 241-E/2017; Decree 239/2019). Budget norms in 2021 refer to expenses for the Hochtief award and exchange differences on ICSID awards (DNU 489/2021; DA 822/2021), suggesting a cash payment, but the terms are not stated (unconfirmed).

3. How big was the discount? At least 25% of the total claimed including interest under every model since 2013; 36% nominal in the Total case (USD 201 million for USD 312 million). The bonds' market value was a further discount (unconfirmed).

4. Can I enforce an ICSID award against Argentine assets abroad? Legally yes, as a final judgment in any ICSID State (art. 54), but immunity from execution is preserved (art. 55). In practice most creditors negotiated.

5. Did Repsol win at ICSID? No award was issued as far as the sources show. Repsol settled the expropriation directly with Argentina under an agreement of 27 February 2014 ratified by Law 26.932, paid with up to VNO USD 6,000 million in bonds (Res. SF 26/2014). The withdrawal of its ICSID claim is in the agreement annex (unconfirmed).

6. Was the YPF New York case an investment arbitration? No. It was a lawsuit in US courts by minority shareholders under YPF's bylaws. The government reports a ruling in Argentina's favour on 27 March 2026 that removed an exposure of USD 18,000 million (unconfirmed).

7. What is the Calvo doctrine and does it still apply? It is the idea that foreigners must use local courts and get no better treatment than nationals. It is not in the Constitution, but art. 27 (treaties must conform to constitutional public law) and the 18 month local litigation clauses reflect it. Argentina remains in ICSID and treaties rank above laws (art. 75(22)).

8. Does the RIGI clause replace my BIT? No. RIGI rights are protected investments under applicable BITs once approved (Law 27.742 art. 222; Decree 749/2024 Annex art. 136). If both routes are used for the same dispute they are consolidated, and foreign shareholder RIGI claims yield to the BIT claim (Annex art. 135).

9. Who represents Argentina? The Treasury Attorney's Office (PTN), with provincial attorneys contributing where provincial investments are involved (PTN Res. 61/2003) and outside counsel where engaged.

10. Can I sell my award? Yes. Several awards were held by assignees when settled (Res. MEyFP 598/2013; Res. MHyFP 173/2016). The Ministry verifies the holder's title.

11. What is an umbrella clause and does it help with a concession contract? A treaty promise to observe obligations entered into with regard to investments (US BIT art. II(2)(c)). It may bring contract breaches into treaty arbitration, but tribunals disagree on its reach (unconfirmed), and Spain's BIT has none.

12. How long should I budget? On the precedents, 8 to 11 years from measure to settlement (Example 1); the YPF litigation has lasted about ten years (PTN, 2025).

Primary sources

• Constitution, arts. 17, 27, 31, 75(22), 116 and 117
• Law 24.353 (ICSID Convention), arts. 25, 26, 36 to 38, 42, 49 to 55, 59 to 61
• Law 21.499 (expropriation), arts. 10 to 13, 18, 20, 29, 31, 33 (original text)
• Law 26.932 (Repsol agreement)
• Res. SF 26/2014 (Repsol bonds)
• Law 27.742, arts. 217 and 221 to 223
• Decree 749/2024, Annex arts. 124 to 137 (as amended by Decree 940/2024)
• Res. MEyFP 598/2013
• DA 830/2013
• Res. MHyFP 173/2016
• DA 1161/2016
• Res. MF 112-E/2017
• Res. MF 241-E/2017
• DA 1117/2017
• Decree 239/2019
• Res. MH 241/2019
• Joint Res. SH and SF 29/2019
• Law 27.591 (Budget 2021), art. 83
• DNU 489/2021
• DA 822/2021
• Decree 633/2022
• Decree 873/2024
• Infoleg search "CIADI" (61 norms)
• Ministry of Finance, Total settlement, 18 July 2017
• PTN seminar on 25 years of ICSID, 29 August 2019
• Official Communiqué No. 140, 18 March 2026
• Supreme Court UMA notice (ARS 108,005 from 1 September 2026)
• ICSID case database
• ICSID Schedule of Fees
• UNCTAD Investment Dispute Settlement Navigator, Argentina

Related pages

• Dispute resolution
• Commercial arbitration in Argentina: Law 27.449, the Civil and Commercial Code and enforcing awards
• Argentine courts and litigation: how commercial disputes work
• Enforcing foreign judgments and arbitral awards in Argentina