LG&E Energy Corp., LG&E Capital Corp., and LG&E International, Inc .v. Argentine Republic
ICSID · Investment (ICSID and treaty) · Argentina · 3 Oct 2006
Why it matters
This decision is a landmark in investment treaty arbitration for its detailed analysis of the state of necessity defense under both treaty and customary international law. It established that a severe economic crisis can qualify as a state of necessity, temporarily exempting the host state from liability, but only for the duration of the crisis. The case also clarified the interplay between the umbrella clause and treaty standards, and set a precedent for determining the temporal scope of necessity in investment disputes.
Summary
LG&E, US energy companies, invested in three Argentine gas distribution companies in the 1990s under a regulatory framework that guaranteed tariffs in US dollars, periodic adjustments based on US price indices, and no tariff freezing without compensation. During Argentina's severe economic crisis (1999-2002), the government enacted Emergency Law No. 25,561 in January 2002, which abolished the dollar peg, froze tariffs, and converted contracts to pesos. LG&E claimed these measures violated the US-Argentina BIT, including fair and equitable treatment (FET), non-discrimination, the umbrella clause, and indirect expropriation. Argentina argued the measures were necessary to protect public order and essential security interests under Article XI of the BIT and customary international law on state of necessity. The Tribunal found that Argentina breached FET by unilaterally abrogating the tariff guarantees, violated the umbrella clause by failing to honor contractual commitments, and acted discriminatorily by singling out public utilities. However, it dismissed the expropriation claim, finding no permanent deprivation of value. Crucially, the Tribunal held that Argentina was in a state of necessity from 1 December 2001 to 26 April 2003, exempting it from liability for damages during that period. The necessity defense required that the measures were the only way to safeguard essential interests, that Argentina did not contribute to the crisis, and that the measures did not seriously impair other states' rights. After the necessity period ended, Argentina remained liable for breaches before and after, and the Tribunal ordered damages to be determined in a subsequent phase. The decision is significant for its temporal limitation of the necessity defense and its application of the ILC Articles on State Responsibility alongside treaty provisions.
The detail
Parties: LG&E Energy Corp., LG&E Capital Corp., and LG&E International, Inc .v. Argentine Republic
Case number: ICSID Case No. ARB/02/1
Outcome: Argentina breached fair and equitable treatment and the umbrella clause, but was exempt from liability during a state of necessity from 1 December 2001 to 26 April 2003; expropriation claim dismissed; damages to be determined in a later phase.
Applicable law: US-Argentina BIT (1991), ICSID Convention, international law
Issues in play: The case involved a collision between Argentina's right to invoke the state of necessity under Article XI of the BIT and customary international law (ILC Articles on State Responsibility) and the investors' rights to fair and equitable treatment, non-discrimination, and protection against expropriation.
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