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Korea wins second Dayyani ISDS case: what the dismissed 770 billion won claim means

2026-09-30 · about 4 min read
ⓘ This article is for general information only and does not replace professional medical, legal, or financial advice. Please consult a qualified professional before making important decisions.

Reports said the Korean government fully won the second investor-state dispute settlement case filed by Iran’s Dayyani family, with a damages claim worth about 770 billion won dismissed. Chosun Ilbo, The Hankyoreh, JTBC, and Kyunghyang Shinmun described the ruling as a result that prevented a potential outflow of public funds. The headline may sound like simply winning a large case, but ISDS procedures involve state policy, foreign-investor rights, and public-finance burdens at the same time, so the reasoning and follow-up matter.

Key summary

  • Reports said the Korean government fully prevailed in the second ISDS case brought by the Dayyani family of Iran.
  • The reported claim size was about 770 billion won.
  • The result is significant because it avoided a possible burden on public finances.
  • The scope of the ruling disclosure, cost settlement, and prevention of similar disputes still need to be checked.

Background

ISDS is a procedure in which a foreign investor brings international arbitration against a state, claiming a breach of an investment treaty. Unlike a dispute between companies, it can involve government policy, public-agency decisions, tax or financial administration, and public money. For citizens, the key questions are not only who won, but why the dispute arose, what grounds the government used to defend itself, and how similar cost risks can be reduced.

Confirmed facts

  • Chosun Ilbo reported that the Ministry of Justice won the second Dayyani ISDS case and that a 770 billion won claim was dismissed.
  • The Hankyoreh reported that the government fully prevailed in the Dayyani family’s second ISDS case.
  • JTBC reported that the government won a second case worth 770 billion won brought by a family linked to a major Iranian home-appliance company.
  • Kyunghyang Shinmun described the ruling as an international-investment dispute result that prevented a public-fund outflow.

Issues to sort out

IssueKey summaryCheck point
Claim dismissalThe core point is that a claim worth about 770 billion won was not accepted.Check how the final award and government explanation describe the reasons for dismissal.
Public-finance burdenA loss could have created a large fiscal burden.Confirm how legal costs and actual fiscal effects are settled.
Dispute backgroundThere is a long-running dispute context between a foreign investor and the state.Separate the issues in the first case from those in the second case.
Policy lessonISDS defense requires legal strategy and careful policy record-keeping.Watch whether procedures to reduce similar investment disputes are strengthened.

What to watch next

  • Check the award summary released by the government and how much of the actual ruling is disclosed.
  • Watch how litigation and arbitration costs, as well as recoverable amounts, are settled.
  • Separate the issues of the first and second Dayyani ISDS cases.
  • See whether dispute-prevention measures are strengthened for public-agency sales, restructuring, and investment-treaty decisions.

Search keywords

  • Dayyani second ISDS win
  • Korea ISDS 770 billion won dismissed
  • Iran Dayyani investor-state dispute
  • Ministry of Justice Dayyani ISDS
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International arbitration cases are hard to evaluate fully from the first summary reports. It is safer to separate the result from its broader impact until government materials, award summaries, and cost-settlement details are available.
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